/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-SemanticLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/mcr/example_10.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-7cd14b8b9f04096d8ddfd3d9cd8a4ac590fe5404-7cd14b8 [2021-03-11 14:16:41,628 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-11 14:16:41,629 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-11 14:16:41,668 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-11 14:16:41,668 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-11 14:16:41,671 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-11 14:16:41,674 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-11 14:16:41,680 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-11 14:16:41,682 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-11 14:16:41,687 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-11 14:16:41,688 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-11 14:16:41,689 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-11 14:16:41,689 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-11 14:16:41,691 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-11 14:16:41,692 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-11 14:16:41,693 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-11 14:16:41,695 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-11 14:16:41,695 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-11 14:16:41,697 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-11 14:16:41,698 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-11 14:16:41,699 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-11 14:16:41,700 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-11 14:16:41,700 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-11 14:16:41,701 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-11 14:16:41,703 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-03-11 14:16:41,706 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-03-11 14:16:41,706 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-03-11 14:16:41,707 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-03-11 14:16:41,707 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-03-11 14:16:41,708 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-03-11 14:16:41,708 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-03-11 14:16:41,709 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-03-11 14:16:41,709 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-03-11 14:16:41,709 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-11 14:16:41,710 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-11 14:16:41,710 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-11 14:16:41,711 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-SemanticLbe.epf [2021-03-11 14:16:41,753 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-11 14:16:41,753 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-11 14:16:41,756 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-11 14:16:41,756 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-11 14:16:41,757 INFO L138 SettingsManager]: * Use SBE=true [2021-03-11 14:16:41,757 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-11 14:16:41,757 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-11 14:16:41,757 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-11 14:16:41,757 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-11 14:16:41,757 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-11 14:16:41,758 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-11 14:16:41,758 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-11 14:16:41,758 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-11 14:16:41,759 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-11 14:16:41,759 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-11 14:16:41,759 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-11 14:16:41,759 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-11 14:16:41,759 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-11 14:16:41,759 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-11 14:16:41,759 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-11 14:16:41,760 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-11 14:16:41,760 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-11 14:16:41,760 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-11 14:16:41,760 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-11 14:16:41,760 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-11 14:16:41,760 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-11 14:16:41,760 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-11 14:16:41,761 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-03-11 14:16:41,761 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-11 14:16:42,053 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-11 14:16:42,069 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-11 14:16:42,073 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-11 14:16:42,074 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-03-11 14:16:42,075 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-03-11 14:16:42,076 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/mcr/example_10.bpl [2021-03-11 14:16:42,076 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/mcr/example_10.bpl' [2021-03-11 14:16:42,122 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-11 14:16:42,126 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-03-11 14:16:42,127 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-11 14:16:42,127 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-11 14:16:42,127 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-11 14:16:42,139 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "example_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 02:16:42" (1/1) ... [2021-03-11 14:16:42,145 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "example_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 02:16:42" (1/1) ... [2021-03-11 14:16:42,150 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-11 14:16:42,152 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-11 14:16:42,152 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-11 14:16:42,152 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-11 14:16:42,159 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "example_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 02:16:42" (1/1) ... [2021-03-11 14:16:42,160 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "example_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 02:16:42" (1/1) ... [2021-03-11 14:16:42,161 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "example_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 02:16:42" (1/1) ... [2021-03-11 14:16:42,161 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "example_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 02:16:42" (1/1) ... [2021-03-11 14:16:42,166 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "example_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 02:16:42" (1/1) ... [2021-03-11 14:16:42,166 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "example_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 02:16:42" (1/1) ... [2021-03-11 14:16:42,167 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "example_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 02:16:42" (1/1) ... [2021-03-11 14:16:42,167 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-11 14:16:42,168 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-11 14:16:42,168 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-11 14:16:42,168 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-11 14:16:42,170 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "example_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 02:16:42" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-11 14:16:42,214 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_1 given in one single declaration [2021-03-11 14:16:42,214 INFO L130 BoogieDeclarations]: Found specification of procedure set_1 [2021-03-11 14:16:42,214 INFO L138 BoogieDeclarations]: Found implementation of procedure set_1 [2021-03-11 14:16:42,214 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_2 given in one single declaration [2021-03-11 14:16:42,215 INFO L130 BoogieDeclarations]: Found specification of procedure set_2 [2021-03-11 14:16:42,215 INFO L138 BoogieDeclarations]: Found implementation of procedure set_2 [2021-03-11 14:16:42,215 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_3 given in one single declaration [2021-03-11 14:16:42,215 INFO L130 BoogieDeclarations]: Found specification of procedure set_3 [2021-03-11 14:16:42,215 INFO L138 BoogieDeclarations]: Found implementation of procedure set_3 [2021-03-11 14:16:42,215 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_4 given in one single declaration [2021-03-11 14:16:42,215 INFO L130 BoogieDeclarations]: Found specification of procedure set_4 [2021-03-11 14:16:42,215 INFO L138 BoogieDeclarations]: Found implementation of procedure set_4 [2021-03-11 14:16:42,216 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_0 given in one single declaration [2021-03-11 14:16:42,216 INFO L130 BoogieDeclarations]: Found specification of procedure set_0 [2021-03-11 14:16:42,216 INFO L138 BoogieDeclarations]: Found implementation of procedure set_0 [2021-03-11 14:16:42,216 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_9 given in one single declaration [2021-03-11 14:16:42,216 INFO L130 BoogieDeclarations]: Found specification of procedure set_9 [2021-03-11 14:16:42,216 INFO L138 BoogieDeclarations]: Found implementation of procedure set_9 [2021-03-11 14:16:42,216 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-03-11 14:16:42,216 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-11 14:16:42,217 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-11 14:16:42,217 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_5 given in one single declaration [2021-03-11 14:16:42,217 INFO L130 BoogieDeclarations]: Found specification of procedure set_5 [2021-03-11 14:16:42,217 INFO L138 BoogieDeclarations]: Found implementation of procedure set_5 [2021-03-11 14:16:42,217 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_6 given in one single declaration [2021-03-11 14:16:42,217 INFO L130 BoogieDeclarations]: Found specification of procedure set_6 [2021-03-11 14:16:42,217 INFO L138 BoogieDeclarations]: Found implementation of procedure set_6 [2021-03-11 14:16:42,217 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_7 given in one single declaration [2021-03-11 14:16:42,218 INFO L130 BoogieDeclarations]: Found specification of procedure set_7 [2021-03-11 14:16:42,218 INFO L138 BoogieDeclarations]: Found implementation of procedure set_7 [2021-03-11 14:16:42,218 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_8 given in one single declaration [2021-03-11 14:16:42,218 INFO L130 BoogieDeclarations]: Found specification of procedure set_8 [2021-03-11 14:16:42,218 INFO L138 BoogieDeclarations]: Found implementation of procedure set_8 [2021-03-11 14:16:42,219 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-11 14:16:42,422 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-11 14:16:42,422 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-03-11 14:16:42,423 INFO L202 PluginConnector]: Adding new model example_10.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.03 02:16:42 BoogieIcfgContainer [2021-03-11 14:16:42,423 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-11 14:16:42,425 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-11 14:16:42,425 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-11 14:16:42,427 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-11 14:16:42,427 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "example_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 02:16:42" (1/2) ... [2021-03-11 14:16:42,428 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@174f8af2 and model type example_10.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.03 02:16:42, skipping insertion in model container [2021-03-11 14:16:42,428 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "example_10.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.03 02:16:42" (2/2) ... [2021-03-11 14:16:42,429 INFO L111 eAbstractionObserver]: Analyzing ICFG example_10.bpl [2021-03-11 14:16:42,450 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-03-11 14:16:42,450 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-11 14:16:42,453 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-11 14:16:42,468 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-11 14:16:42,680 INFO L149 ThreadInstanceAdder]: Constructed 100 joinOtherThreadTransitions. [2021-03-11 14:16:42,694 INFO L253 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2021-03-11 14:16:42,709 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-11 14:16:42,709 INFO L377 AbstractCegarLoop]: Hoare is true [2021-03-11 14:16:42,709 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-11 14:16:42,709 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-11 14:16:42,709 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-11 14:16:42,709 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-11 14:16:42,709 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-11 14:16:42,709 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-11 14:16:42,722 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-11 14:16:42,734 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 84 places, 143 transitions, 636 flow [2021-03-11 14:16:42,736 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 84 places, 143 transitions, 636 flow [2021-03-11 14:16:42,738 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 84 places, 143 transitions, 636 flow [2021-03-11 14:16:43,234 INFO L129 PetriNetUnfolder]: 4097/5153 cut-off events. [2021-03-11 14:16:43,235 INFO L130 PetriNetUnfolder]: For 5120/5120 co-relation queries the response was YES. [2021-03-11 14:16:43,256 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10304 conditions, 5153 events. 4097/5153 cut-off events. For 5120/5120 co-relation queries the response was YES. Maximal size of possible extension queue 274. Compared 20936 event pairs, 0 based on Foata normal form. 0/5152 useless extension candidates. Maximal degree in co-relation 4655. Up to 1260 conditions per place. [2021-03-11 14:16:43,361 INFO L116 LiptonReduction]: Number of co-enabled transitions 3780 [2021-03-11 14:16:43,575 INFO L131 LiptonReduction]: Checked pairs total: 14635 [2021-03-11 14:16:43,576 INFO L133 LiptonReduction]: Total number of compositions: 11 [2021-03-11 14:16:43,586 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 73 places, 132 transitions, 614 flow [2021-03-11 14:16:51,150 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 60074 states, 60072 states have (on average 6.6384005859635105) internal successors, (398782), 60073 states have internal predecessors, (398782), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:16:51,322 INFO L276 IsEmpty]: Start isEmpty. Operand has 60074 states, 60072 states have (on average 6.6384005859635105) internal successors, (398782), 60073 states have internal predecessors, (398782), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:16:51,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:16:51,915 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:16:51,916 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:16:51,917 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:16:51,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:16:51,925 INFO L82 PathProgramCache]: Analyzing trace with hash -1822959571, now seen corresponding path program 1 times [2021-03-11 14:16:51,931 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:16:51,932 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [55383665] [2021-03-11 14:16:51,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:16:52,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:16:52,072 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:16:52,072 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:16:52,082 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:16:52,082 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 14:16:52,088 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:16:52,088 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:16:52,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:16:52,090 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [55383665] [2021-03-11 14:16:52,091 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:16:52,091 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-11 14:16:52,092 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1150485995] [2021-03-11 14:16:52,095 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-11 14:16:52,095 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:16:52,108 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-11 14:16:52,109 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-11 14:16:52,208 INFO L87 Difference]: Start difference. First operand has 60074 states, 60072 states have (on average 6.6384005859635105) internal successors, (398782), 60073 states have internal predecessors, (398782), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:16:53,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:16:53,341 INFO L93 Difference]: Finished difference Result 59562 states and 393662 transitions. [2021-03-11 14:16:53,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-11 14:16:53,342 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:16:53,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:16:53,879 INFO L225 Difference]: With dead ends: 59562 [2021-03-11 14:16:53,879 INFO L226 Difference]: Without dead ends: 59561 [2021-03-11 14:16:53,880 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.4ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-11 14:16:55,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59561 states. [2021-03-11 14:16:57,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59561 to 59561. [2021-03-11 14:16:57,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59561 states, 59560 states have (on average 6.609486232370719) internal successors, (393661), 59560 states have internal predecessors, (393661), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:16:58,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59561 states to 59561 states and 393661 transitions. [2021-03-11 14:16:58,729 INFO L78 Accepts]: Start accepts. Automaton has 59561 states and 393661 transitions. Word has length 31 [2021-03-11 14:16:58,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:16:58,730 INFO L480 AbstractCegarLoop]: Abstraction has 59561 states and 393661 transitions. [2021-03-11 14:16:58,730 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:16:58,731 INFO L276 IsEmpty]: Start isEmpty. Operand 59561 states and 393661 transitions. [2021-03-11 14:16:59,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:16:59,489 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:16:59,489 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:16:59,489 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-11 14:16:59,490 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:16:59,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:16:59,491 INFO L82 PathProgramCache]: Analyzing trace with hash 1078945419, now seen corresponding path program 1 times [2021-03-11 14:16:59,491 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:16:59,492 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1243179615] [2021-03-11 14:16:59,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:16:59,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:16:59,533 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:16:59,534 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:16:59,535 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:16:59,535 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 14:16:59,538 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:16:59,538 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:16:59,539 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:16:59,539 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1243179615] [2021-03-11 14:16:59,539 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:16:59,539 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-11 14:16:59,539 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2061777959] [2021-03-11 14:16:59,540 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-11 14:16:59,540 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:16:59,541 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-11 14:16:59,541 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-11 14:16:59,541 INFO L87 Difference]: Start difference. First operand 59561 states and 393661 transitions. Second operand has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:00,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:17:00,495 INFO L93 Difference]: Finished difference Result 46761 states and 293565 transitions. [2021-03-11 14:17:00,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-11 14:17:00,496 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:17:00,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:17:01,150 INFO L225 Difference]: With dead ends: 46761 [2021-03-11 14:17:01,151 INFO L226 Difference]: Without dead ends: 46761 [2021-03-11 14:17:01,152 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.1ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-11 14:17:03,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46761 states. [2021-03-11 14:17:04,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46761 to 46761. [2021-03-11 14:17:04,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46761 states, 46760 states have (on average 6.278122326775021) internal successors, (293565), 46760 states have internal predecessors, (293565), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:05,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46761 states to 46761 states and 293565 transitions. [2021-03-11 14:17:05,100 INFO L78 Accepts]: Start accepts. Automaton has 46761 states and 293565 transitions. Word has length 31 [2021-03-11 14:17:05,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:17:05,108 INFO L480 AbstractCegarLoop]: Abstraction has 46761 states and 293565 transitions. [2021-03-11 14:17:05,108 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:05,108 INFO L276 IsEmpty]: Start isEmpty. Operand 46761 states and 293565 transitions. [2021-03-11 14:17:05,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:17:05,246 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:17:05,247 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:17:05,247 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-11 14:17:05,247 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:17:05,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:17:05,247 INFO L82 PathProgramCache]: Analyzing trace with hash -467881899, now seen corresponding path program 1 times [2021-03-11 14:17:05,247 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:17:05,248 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [357387223] [2021-03-11 14:17:05,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:17:05,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:17:05,285 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:17:05,285 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:17:05,286 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:17:05,286 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 14:17:05,289 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:17:05,290 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:17:05,290 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:17:05,290 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [357387223] [2021-03-11 14:17:05,291 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:17:05,291 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-11 14:17:05,291 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1982310797] [2021-03-11 14:17:05,291 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-11 14:17:05,292 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:17:05,292 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-11 14:17:05,292 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-11 14:17:05,293 INFO L87 Difference]: Start difference. First operand 46761 states and 293565 transitions. Second operand has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:06,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:17:06,070 INFO L93 Difference]: Finished difference Result 44201 states and 271549 transitions. [2021-03-11 14:17:06,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-11 14:17:06,071 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:17:06,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:17:06,294 INFO L225 Difference]: With dead ends: 44201 [2021-03-11 14:17:06,294 INFO L226 Difference]: Without dead ends: 44201 [2021-03-11 14:17:06,294 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.2ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-11 14:17:07,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44201 states. [2021-03-11 14:17:08,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44201 to 44201. [2021-03-11 14:17:08,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44201 states, 44200 states have (on average 6.143642533936651) internal successors, (271549), 44200 states have internal predecessors, (271549), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:08,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44201 states to 44201 states and 271549 transitions. [2021-03-11 14:17:08,984 INFO L78 Accepts]: Start accepts. Automaton has 44201 states and 271549 transitions. Word has length 31 [2021-03-11 14:17:08,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:17:08,985 INFO L480 AbstractCegarLoop]: Abstraction has 44201 states and 271549 transitions. [2021-03-11 14:17:08,985 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:08,985 INFO L276 IsEmpty]: Start isEmpty. Operand 44201 states and 271549 transitions. [2021-03-11 14:17:09,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:17:09,089 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:17:09,089 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:17:09,090 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-11 14:17:09,090 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:17:09,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:17:09,090 INFO L82 PathProgramCache]: Analyzing trace with hash -564771401, now seen corresponding path program 1 times [2021-03-11 14:17:09,090 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:17:09,090 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1007632517] [2021-03-11 14:17:09,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:17:09,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:17:09,112 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:17:09,113 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:17:09,113 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:17:09,114 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 14:17:09,116 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:17:09,116 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:17:09,117 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:17:09,117 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1007632517] [2021-03-11 14:17:09,117 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:17:09,117 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-11 14:17:09,117 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [766194123] [2021-03-11 14:17:09,118 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-11 14:17:09,118 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:17:09,118 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-11 14:17:09,118 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-11 14:17:09,118 INFO L87 Difference]: Start difference. First operand 44201 states and 271549 transitions. Second operand has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:09,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:17:09,837 INFO L93 Difference]: Finished difference Result 38313 states and 225981 transitions. [2021-03-11 14:17:09,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-11 14:17:09,837 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:17:09,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:17:10,027 INFO L225 Difference]: With dead ends: 38313 [2021-03-11 14:17:10,027 INFO L226 Difference]: Without dead ends: 38313 [2021-03-11 14:17:10,028 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.0ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-11 14:17:10,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38313 states. [2021-03-11 14:17:11,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38313 to 38313. [2021-03-11 14:17:11,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38313 states, 38312 states have (on average 5.89843913134266) internal successors, (225981), 38312 states have internal predecessors, (225981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:11,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38313 states to 38313 states and 225981 transitions. [2021-03-11 14:17:11,864 INFO L78 Accepts]: Start accepts. Automaton has 38313 states and 225981 transitions. Word has length 31 [2021-03-11 14:17:11,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:17:11,864 INFO L480 AbstractCegarLoop]: Abstraction has 38313 states and 225981 transitions. [2021-03-11 14:17:11,864 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:11,864 INFO L276 IsEmpty]: Start isEmpty. Operand 38313 states and 225981 transitions. [2021-03-11 14:17:11,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:17:11,949 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:17:11,949 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:17:11,949 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-11 14:17:11,950 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:17:11,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:17:11,950 INFO L82 PathProgramCache]: Analyzing trace with hash -886803559, now seen corresponding path program 1 times [2021-03-11 14:17:11,950 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:17:11,950 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1126825803] [2021-03-11 14:17:11,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:17:11,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:17:11,970 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:17:11,971 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:17:11,971 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:17:11,972 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 14:17:11,974 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:17:11,974 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:17:11,974 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:17:11,974 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1126825803] [2021-03-11 14:17:11,975 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:17:11,975 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-11 14:17:11,975 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [365700942] [2021-03-11 14:17:11,975 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-11 14:17:11,975 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:17:11,976 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-11 14:17:11,976 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-11 14:17:11,976 INFO L87 Difference]: Start difference. First operand 38313 states and 225981 transitions. Second operand has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:12,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:17:12,625 INFO L93 Difference]: Finished difference Result 25961 states and 144061 transitions. [2021-03-11 14:17:12,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-11 14:17:12,625 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:17:12,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:17:12,728 INFO L225 Difference]: With dead ends: 25961 [2021-03-11 14:17:12,728 INFO L226 Difference]: Without dead ends: 25961 [2021-03-11 14:17:12,729 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.7ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-11 14:17:13,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25961 states. [2021-03-11 14:17:13,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25961 to 25961. [2021-03-11 14:17:13,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25961 states, 25960 states have (on average 5.549345146379045) internal successors, (144061), 25960 states have internal predecessors, (144061), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:14,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25961 states to 25961 states and 144061 transitions. [2021-03-11 14:17:14,010 INFO L78 Accepts]: Start accepts. Automaton has 25961 states and 144061 transitions. Word has length 31 [2021-03-11 14:17:14,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:17:14,010 INFO L480 AbstractCegarLoop]: Abstraction has 25961 states and 144061 transitions. [2021-03-11 14:17:14,010 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:14,010 INFO L276 IsEmpty]: Start isEmpty. Operand 25961 states and 144061 transitions. [2021-03-11 14:17:14,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:17:14,065 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:17:14,065 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:17:14,066 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-03-11 14:17:14,066 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:17:14,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:17:14,066 INFO L82 PathProgramCache]: Analyzing trace with hash -92070865, now seen corresponding path program 1 times [2021-03-11 14:17:14,066 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:17:14,066 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1058696345] [2021-03-11 14:17:14,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:17:14,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:17:14,081 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:17:14,081 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:17:14,081 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:17:14,082 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 14:17:14,084 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:17:14,084 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:17:14,085 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:17:14,085 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1058696345] [2021-03-11 14:17:14,085 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:17:14,085 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-11 14:17:14,085 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [480082396] [2021-03-11 14:17:14,085 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-11 14:17:14,085 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:17:14,086 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-11 14:17:14,086 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-11 14:17:14,086 INFO L87 Difference]: Start difference. First operand 25961 states and 144061 transitions. Second operand has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:14,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:17:14,174 INFO L93 Difference]: Finished difference Result 15753 states and 82941 transitions. [2021-03-11 14:17:14,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-11 14:17:14,174 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:17:14,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:17:14,219 INFO L225 Difference]: With dead ends: 15753 [2021-03-11 14:17:14,219 INFO L226 Difference]: Without dead ends: 15753 [2021-03-11 14:17:14,219 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.0ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-11 14:17:14,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15753 states. [2021-03-11 14:17:14,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15753 to 15753. [2021-03-11 14:17:14,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15753 states, 15752 states have (on average 5.265426612493652) internal successors, (82941), 15752 states have internal predecessors, (82941), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:15,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15753 states to 15753 states and 82941 transitions. [2021-03-11 14:17:15,056 INFO L78 Accepts]: Start accepts. Automaton has 15753 states and 82941 transitions. Word has length 31 [2021-03-11 14:17:15,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:17:15,056 INFO L480 AbstractCegarLoop]: Abstraction has 15753 states and 82941 transitions. [2021-03-11 14:17:15,056 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:15,057 INFO L276 IsEmpty]: Start isEmpty. Operand 15753 states and 82941 transitions. [2021-03-11 14:17:15,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:17:15,088 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:17:15,088 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:17:15,088 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-03-11 14:17:15,089 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:17:15,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:17:15,089 INFO L82 PathProgramCache]: Analyzing trace with hash 1495421307, now seen corresponding path program 1 times [2021-03-11 14:17:15,089 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:17:15,089 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1882267554] [2021-03-11 14:17:15,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:17:15,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:17:15,109 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:17:15,110 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:17:15,110 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:17:15,111 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 14:17:15,113 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:17:15,114 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:17:15,114 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:17:15,114 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1882267554] [2021-03-11 14:17:15,114 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:17:15,114 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-11 14:17:15,114 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1859026510] [2021-03-11 14:17:15,115 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-11 14:17:15,115 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:17:15,115 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-11 14:17:15,115 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-11 14:17:15,115 INFO L87 Difference]: Start difference. First operand 15753 states and 82941 transitions. Second operand has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:15,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:17:15,195 INFO L93 Difference]: Finished difference Result 8969 states and 45661 transitions. [2021-03-11 14:17:15,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-11 14:17:15,195 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:17:15,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:17:15,221 INFO L225 Difference]: With dead ends: 8969 [2021-03-11 14:17:15,221 INFO L226 Difference]: Without dead ends: 8969 [2021-03-11 14:17:15,221 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.2ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-11 14:17:15,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8969 states. [2021-03-11 14:17:15,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8969 to 8969. [2021-03-11 14:17:15,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8969 states, 8968 states have (on average 5.0915477252453165) internal successors, (45661), 8968 states have internal predecessors, (45661), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:15,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8969 states to 8969 states and 45661 transitions. [2021-03-11 14:17:15,553 INFO L78 Accepts]: Start accepts. Automaton has 8969 states and 45661 transitions. Word has length 31 [2021-03-11 14:17:15,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:17:15,553 INFO L480 AbstractCegarLoop]: Abstraction has 8969 states and 45661 transitions. [2021-03-11 14:17:15,553 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:15,553 INFO L276 IsEmpty]: Start isEmpty. Operand 8969 states and 45661 transitions. [2021-03-11 14:17:15,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:17:15,570 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:17:15,570 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:17:15,570 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-03-11 14:17:15,570 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:17:15,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:17:15,571 INFO L82 PathProgramCache]: Analyzing trace with hash 84469291, now seen corresponding path program 1 times [2021-03-11 14:17:15,571 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:17:15,571 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1491368466] [2021-03-11 14:17:15,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:17:15,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:17:15,584 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:17:15,584 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:17:15,585 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:17:15,585 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 14:17:15,588 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:17:15,588 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:17:15,588 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:17:15,589 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1491368466] [2021-03-11 14:17:15,589 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:17:15,589 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-11 14:17:15,589 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [32287038] [2021-03-11 14:17:15,589 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-11 14:17:15,589 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:17:15,590 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-11 14:17:15,590 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-11 14:17:15,590 INFO L87 Difference]: Start difference. First operand 8969 states and 45661 transitions. Second operand has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:15,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:17:15,634 INFO L93 Difference]: Finished difference Result 5097 states and 25581 transitions. [2021-03-11 14:17:15,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-11 14:17:15,636 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:17:15,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:17:15,653 INFO L225 Difference]: With dead ends: 5097 [2021-03-11 14:17:15,653 INFO L226 Difference]: Without dead ends: 5097 [2021-03-11 14:17:15,653 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.1ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-11 14:17:15,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5097 states. [2021-03-11 14:17:15,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5097 to 5097. [2021-03-11 14:17:15,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5097 states, 5096 states have (on average 5.0198194662480375) internal successors, (25581), 5096 states have internal predecessors, (25581), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:15,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5097 states to 5097 states and 25581 transitions. [2021-03-11 14:17:15,861 INFO L78 Accepts]: Start accepts. Automaton has 5097 states and 25581 transitions. Word has length 31 [2021-03-11 14:17:15,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:17:15,861 INFO L480 AbstractCegarLoop]: Abstraction has 5097 states and 25581 transitions. [2021-03-11 14:17:15,861 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:15,861 INFO L276 IsEmpty]: Start isEmpty. Operand 5097 states and 25581 transitions. [2021-03-11 14:17:15,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:17:15,870 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:17:15,870 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:17:15,871 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-03-11 14:17:15,871 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:17:15,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:17:15,871 INFO L82 PathProgramCache]: Analyzing trace with hash 1947680065, now seen corresponding path program 1 times [2021-03-11 14:17:15,871 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:17:15,871 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2140892918] [2021-03-11 14:17:15,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:17:15,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:17:15,883 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:17:15,883 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:17:15,884 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:17:15,884 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 14:17:15,887 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:17:15,887 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:17:15,887 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:17:15,888 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2140892918] [2021-03-11 14:17:15,888 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:17:15,888 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-11 14:17:15,888 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [511705096] [2021-03-11 14:17:15,888 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-11 14:17:15,888 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:17:15,889 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-11 14:17:15,889 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-11 14:17:15,889 INFO L87 Difference]: Start difference. First operand 5097 states and 25581 transitions. Second operand has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:15,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:17:15,917 INFO L93 Difference]: Finished difference Result 3071 states and 15361 transitions. [2021-03-11 14:17:15,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-11 14:17:15,918 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:17:15,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:17:15,928 INFO L225 Difference]: With dead ends: 3071 [2021-03-11 14:17:15,928 INFO L226 Difference]: Without dead ends: 3071 [2021-03-11 14:17:15,928 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.1ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-11 14:17:16,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3071 states. [2021-03-11 14:17:16,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3071 to 3071. [2021-03-11 14:17:16,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3071 states, 3070 states have (on average 5.003583061889251) internal successors, (15361), 3070 states have internal predecessors, (15361), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:16,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3071 states to 3071 states and 15361 transitions. [2021-03-11 14:17:16,256 INFO L78 Accepts]: Start accepts. Automaton has 3071 states and 15361 transitions. Word has length 31 [2021-03-11 14:17:16,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:17:16,256 INFO L480 AbstractCegarLoop]: Abstraction has 3071 states and 15361 transitions. [2021-03-11 14:17:16,257 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:16,257 INFO L276 IsEmpty]: Start isEmpty. Operand 3071 states and 15361 transitions. [2021-03-11 14:17:16,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:17:16,263 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:17:16,263 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:17:16,263 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-03-11 14:17:16,263 INFO L428 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:17:16,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:17:16,263 INFO L82 PathProgramCache]: Analyzing trace with hash -1898804279, now seen corresponding path program 1 times [2021-03-11 14:17:16,264 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:17:16,264 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [867003414] [2021-03-11 14:17:16,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:17:16,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:17:16,356 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:17:16,356 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:17:16,361 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:17:16,362 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:17:16,369 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:17:16,370 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:17:16,381 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:17:16,382 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:17:16,401 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:17:16,402 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:17:16,423 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:17:16,424 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:17:16,450 INFO L142 QuantifierPusher]: treesize reduction 45, result has 51.1 percent of original size [2021-03-11 14:17:16,452 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-11 14:17:16,500 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:17:16,503 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:17:16,551 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:17:16,555 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:17:16,610 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:17:16,612 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:17:16,687 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:17:16,692 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:17:16,749 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:17:16,749 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [867003414] [2021-03-11 14:17:16,749 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:17:16,749 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:17:16,749 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1418531236] [2021-03-11 14:17:16,750 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:17:16,750 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:17:16,750 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:17:16,750 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:17:16,750 INFO L87 Difference]: Start difference. First operand 3071 states and 15361 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:17,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:17:17,005 INFO L93 Difference]: Finished difference Result 6103 states and 27117 transitions. [2021-03-11 14:17:17,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:17:17,005 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:17:17,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:17:17,022 INFO L225 Difference]: With dead ends: 6103 [2021-03-11 14:17:17,022 INFO L226 Difference]: Without dead ends: 6083 [2021-03-11 14:17:17,023 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 384.8ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:17:17,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6083 states. [2021-03-11 14:17:17,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6083 to 3142. [2021-03-11 14:17:17,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3142 states, 3141 states have (on average 4.990767271569564) internal successors, (15676), 3141 states have internal predecessors, (15676), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:17,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3142 states to 3142 states and 15676 transitions. [2021-03-11 14:17:17,206 INFO L78 Accepts]: Start accepts. Automaton has 3142 states and 15676 transitions. Word has length 31 [2021-03-11 14:17:17,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:17:17,206 INFO L480 AbstractCegarLoop]: Abstraction has 3142 states and 15676 transitions. [2021-03-11 14:17:17,206 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:17,206 INFO L276 IsEmpty]: Start isEmpty. Operand 3142 states and 15676 transitions. [2021-03-11 14:17:17,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:17:17,213 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:17:17,213 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:17:17,213 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-03-11 14:17:17,213 INFO L428 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:17:17,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:17:17,214 INFO L82 PathProgramCache]: Analyzing trace with hash 706220113, now seen corresponding path program 2 times [2021-03-11 14:17:17,214 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:17:17,214 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [775968408] [2021-03-11 14:17:17,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:17:17,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:17:17,320 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:17:17,320 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:17:17,322 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:17:17,323 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:17:17,327 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:17:17,328 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:17:17,340 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:17:17,343 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:17:17,358 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:17:17,359 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:17:17,379 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:17:17,380 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:17:17,409 INFO L142 QuantifierPusher]: treesize reduction 45, result has 51.1 percent of original size [2021-03-11 14:17:17,410 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-11 14:17:17,443 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:17:17,446 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:17:17,484 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:17:17,484 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:17:17,530 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:17:17,531 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:17:17,580 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:17:17,581 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:17:17,626 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:17:17,626 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [775968408] [2021-03-11 14:17:17,626 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:17:17,626 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:17:17,626 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [848792290] [2021-03-11 14:17:17,627 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:17:17,627 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:17:17,627 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:17:17,627 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:17:17,627 INFO L87 Difference]: Start difference. First operand 3142 states and 15676 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:17,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:17:17,871 INFO L93 Difference]: Finished difference Result 6101 states and 27106 transitions. [2021-03-11 14:17:17,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:17:17,872 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:17:17,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:17:17,888 INFO L225 Difference]: With dead ends: 6101 [2021-03-11 14:17:17,889 INFO L226 Difference]: Without dead ends: 6076 [2021-03-11 14:17:17,889 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 333.8ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:17:17,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6076 states. [2021-03-11 14:17:18,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6076 to 3135. [2021-03-11 14:17:18,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3135 states, 3134 states have (on average 4.995532865347799) internal successors, (15656), 3134 states have internal predecessors, (15656), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:18,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3135 states to 3135 states and 15656 transitions. [2021-03-11 14:17:18,059 INFO L78 Accepts]: Start accepts. Automaton has 3135 states and 15656 transitions. Word has length 31 [2021-03-11 14:17:18,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:17:18,059 INFO L480 AbstractCegarLoop]: Abstraction has 3135 states and 15656 transitions. [2021-03-11 14:17:18,059 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:18,059 INFO L276 IsEmpty]: Start isEmpty. Operand 3135 states and 15656 transitions. [2021-03-11 14:17:18,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:17:18,066 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:17:18,066 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:17:18,066 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-03-11 14:17:18,066 INFO L428 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:17:18,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:17:18,067 INFO L82 PathProgramCache]: Analyzing trace with hash 1759696163, now seen corresponding path program 3 times [2021-03-11 14:17:18,067 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:17:18,067 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2137504309] [2021-03-11 14:17:18,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:17:18,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:17:18,123 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:17:18,123 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:17:18,124 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:17:18,124 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:17:18,130 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:17:18,131 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:17:18,141 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:17:18,142 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:17:18,153 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:17:18,153 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:17:18,169 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:17:18,169 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:17:18,194 INFO L142 QuantifierPusher]: treesize reduction 45, result has 51.1 percent of original size [2021-03-11 14:17:18,195 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-11 14:17:18,221 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:17:18,221 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:17:18,257 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:17:18,258 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:17:18,301 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:17:18,303 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:17:18,352 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:17:18,352 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:17:18,398 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:17:18,398 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2137504309] [2021-03-11 14:17:18,399 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:17:18,399 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:17:18,399 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1348189347] [2021-03-11 14:17:18,399 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:17:18,399 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:17:18,399 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:17:18,400 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:17:18,400 INFO L87 Difference]: Start difference. First operand 3135 states and 15656 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:18,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:17:18,718 INFO L93 Difference]: Finished difference Result 6111 states and 27126 transitions. [2021-03-11 14:17:18,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:17:18,719 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:17:18,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:17:18,734 INFO L225 Difference]: With dead ends: 6111 [2021-03-11 14:17:18,735 INFO L226 Difference]: Without dead ends: 6091 [2021-03-11 14:17:18,735 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 317.5ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:17:18,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6091 states. [2021-03-11 14:17:18,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6091 to 3146. [2021-03-11 14:17:18,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3146 states, 3145 states have (on average 4.984419713831478) internal successors, (15676), 3145 states have internal predecessors, (15676), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:18,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3146 states to 3146 states and 15676 transitions. [2021-03-11 14:17:18,897 INFO L78 Accepts]: Start accepts. Automaton has 3146 states and 15676 transitions. Word has length 31 [2021-03-11 14:17:18,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:17:18,898 INFO L480 AbstractCegarLoop]: Abstraction has 3146 states and 15676 transitions. [2021-03-11 14:17:18,898 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:18,898 INFO L276 IsEmpty]: Start isEmpty. Operand 3146 states and 15676 transitions. [2021-03-11 14:17:18,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:17:18,904 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:17:18,904 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:17:18,904 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-03-11 14:17:18,905 INFO L428 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:17:18,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:17:18,905 INFO L82 PathProgramCache]: Analyzing trace with hash -1197703919, now seen corresponding path program 4 times [2021-03-11 14:17:18,905 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:17:18,905 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [279533726] [2021-03-11 14:17:18,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:17:18,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:17:18,944 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:17:18,945 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:17:18,945 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:17:18,946 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:17:18,949 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:17:18,950 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:17:18,957 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:17:18,957 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:17:18,969 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:17:18,970 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:17:18,985 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:17:18,986 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:17:19,007 INFO L142 QuantifierPusher]: treesize reduction 45, result has 51.1 percent of original size [2021-03-11 14:17:19,007 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-11 14:17:19,034 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:17:19,035 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:17:19,072 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:17:19,073 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:17:19,115 INFO L142 QuantifierPusher]: treesize reduction 72, result has 49.7 percent of original size [2021-03-11 14:17:19,115 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-03-11 14:17:19,163 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:17:19,164 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:17:19,207 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:17:19,207 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [279533726] [2021-03-11 14:17:19,207 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:17:19,208 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:17:19,208 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2031782500] [2021-03-11 14:17:19,208 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:17:19,208 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:17:19,208 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:17:19,208 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:17:19,209 INFO L87 Difference]: Start difference. First operand 3146 states and 15676 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:19,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:17:19,410 INFO L93 Difference]: Finished difference Result 6113 states and 27120 transitions. [2021-03-11 14:17:19,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:17:19,411 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:17:19,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:17:19,424 INFO L225 Difference]: With dead ends: 6113 [2021-03-11 14:17:19,424 INFO L226 Difference]: Without dead ends: 6080 [2021-03-11 14:17:19,424 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 270.9ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:17:19,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6080 states. [2021-03-11 14:17:19,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6080 to 3135. [2021-03-11 14:17:19,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3135 states, 3134 states have (on average 4.992661135928526) internal successors, (15647), 3134 states have internal predecessors, (15647), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:19,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3135 states to 3135 states and 15647 transitions. [2021-03-11 14:17:19,576 INFO L78 Accepts]: Start accepts. Automaton has 3135 states and 15647 transitions. Word has length 31 [2021-03-11 14:17:19,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:17:19,576 INFO L480 AbstractCegarLoop]: Abstraction has 3135 states and 15647 transitions. [2021-03-11 14:17:19,576 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:19,576 INFO L276 IsEmpty]: Start isEmpty. Operand 3135 states and 15647 transitions. [2021-03-11 14:17:19,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:17:19,581 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:17:19,581 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:17:19,581 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-03-11 14:17:19,581 INFO L428 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:17:19,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:17:19,582 INFO L82 PathProgramCache]: Analyzing trace with hash -778869213, now seen corresponding path program 5 times [2021-03-11 14:17:19,582 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:17:19,582 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1147039321] [2021-03-11 14:17:19,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:17:19,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:17:19,619 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:17:19,620 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:17:19,620 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:17:19,621 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:17:19,625 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:17:19,625 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:17:19,632 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:17:19,632 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:17:19,643 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:17:19,643 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:17:19,659 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:17:19,659 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:17:19,682 INFO L142 QuantifierPusher]: treesize reduction 45, result has 51.1 percent of original size [2021-03-11 14:17:19,683 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-11 14:17:19,712 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:17:19,713 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:17:19,745 INFO L142 QuantifierPusher]: treesize reduction 54, result has 55.4 percent of original size [2021-03-11 14:17:19,746 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-03-11 14:17:19,811 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:17:19,811 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:17:19,849 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:17:19,850 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:17:19,891 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:17:19,891 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1147039321] [2021-03-11 14:17:19,891 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:17:19,891 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:17:19,891 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1991519743] [2021-03-11 14:17:19,892 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:17:19,892 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:17:19,892 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:17:19,892 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:17:19,892 INFO L87 Difference]: Start difference. First operand 3135 states and 15647 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:20,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:17:20,095 INFO L93 Difference]: Finished difference Result 6104 states and 27102 transitions. [2021-03-11 14:17:20,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:17:20,095 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:17:20,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:17:20,112 INFO L225 Difference]: With dead ends: 6104 [2021-03-11 14:17:20,113 INFO L226 Difference]: Without dead ends: 6086 [2021-03-11 14:17:20,114 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 315.3ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:17:20,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6086 states. [2021-03-11 14:17:20,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6086 to 3143. [2021-03-11 14:17:20,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3143 states, 3142 states have (on average 4.984723106301718) internal successors, (15662), 3142 states have internal predecessors, (15662), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:20,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3143 states to 3143 states and 15662 transitions. [2021-03-11 14:17:20,320 INFO L78 Accepts]: Start accepts. Automaton has 3143 states and 15662 transitions. Word has length 31 [2021-03-11 14:17:20,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:17:20,321 INFO L480 AbstractCegarLoop]: Abstraction has 3143 states and 15662 transitions. [2021-03-11 14:17:20,321 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:20,321 INFO L276 IsEmpty]: Start isEmpty. Operand 3143 states and 15662 transitions. [2021-03-11 14:17:20,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:17:20,328 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:17:20,329 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:17:20,329 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-03-11 14:17:20,329 INFO L428 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:17:20,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:17:20,329 INFO L82 PathProgramCache]: Analyzing trace with hash -2046326391, now seen corresponding path program 6 times [2021-03-11 14:17:20,330 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:17:20,330 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2101874299] [2021-03-11 14:17:20,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:17:20,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:17:20,379 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:17:20,379 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:17:20,380 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:17:20,381 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:17:20,384 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:17:20,385 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:17:20,393 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:17:20,393 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:17:20,404 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:17:20,404 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:17:20,459 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:17:20,460 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:17:20,481 INFO L142 QuantifierPusher]: treesize reduction 45, result has 51.1 percent of original size [2021-03-11 14:17:20,481 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-11 14:17:20,508 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:17:20,508 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:17:20,535 INFO L142 QuantifierPusher]: treesize reduction 54, result has 55.4 percent of original size [2021-03-11 14:17:20,536 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-03-11 14:17:20,601 INFO L142 QuantifierPusher]: treesize reduction 72, result has 49.7 percent of original size [2021-03-11 14:17:20,607 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-03-11 14:17:20,654 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:17:20,655 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:17:20,696 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:17:20,697 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2101874299] [2021-03-11 14:17:20,697 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:17:20,697 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:17:20,697 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [879952545] [2021-03-11 14:17:20,697 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:17:20,697 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:17:20,697 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:17:20,698 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:17:20,698 INFO L87 Difference]: Start difference. First operand 3143 states and 15662 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:20,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:17:20,892 INFO L93 Difference]: Finished difference Result 6108 states and 27102 transitions. [2021-03-11 14:17:20,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:17:20,892 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:17:20,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:17:20,910 INFO L225 Difference]: With dead ends: 6108 [2021-03-11 14:17:20,910 INFO L226 Difference]: Without dead ends: 6069 [2021-03-11 14:17:20,913 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 329.1ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:17:21,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6069 states. [2021-03-11 14:17:21,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6069 to 3126. [2021-03-11 14:17:21,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3126 states, 3125 states have (on average 4.99904) internal successors, (15622), 3125 states have internal predecessors, (15622), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:21,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3126 states to 3126 states and 15622 transitions. [2021-03-11 14:17:21,087 INFO L78 Accepts]: Start accepts. Automaton has 3126 states and 15622 transitions. Word has length 31 [2021-03-11 14:17:21,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:17:21,087 INFO L480 AbstractCegarLoop]: Abstraction has 3126 states and 15622 transitions. [2021-03-11 14:17:21,087 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:21,087 INFO L276 IsEmpty]: Start isEmpty. Operand 3126 states and 15622 transitions. [2021-03-11 14:17:21,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:17:21,092 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:17:21,092 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:17:21,092 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-03-11 14:17:21,092 INFO L428 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:17:21,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:17:21,092 INFO L82 PathProgramCache]: Analyzing trace with hash 314106727, now seen corresponding path program 7 times [2021-03-11 14:17:21,092 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:17:21,092 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1551112484] [2021-03-11 14:17:21,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:17:21,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:17:21,132 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:17:21,135 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:17:21,136 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:17:21,137 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:17:21,140 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:17:21,141 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:17:21,148 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:17:21,149 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:17:21,166 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:17:21,166 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:17:21,182 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:17:21,183 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:17:21,205 INFO L142 QuantifierPusher]: treesize reduction 45, result has 51.1 percent of original size [2021-03-11 14:17:21,206 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-11 14:17:21,233 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:17:21,234 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:17:21,266 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:17:21,267 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:17:21,304 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:17:21,305 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:17:21,345 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:17:21,347 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:17:21,389 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:17:21,389 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1551112484] [2021-03-11 14:17:21,389 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:17:21,389 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:17:21,389 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [441442473] [2021-03-11 14:17:21,390 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:17:21,390 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:17:21,390 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:17:21,390 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:17:21,390 INFO L87 Difference]: Start difference. First operand 3126 states and 15622 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:21,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:17:21,575 INFO L93 Difference]: Finished difference Result 6094 states and 27090 transitions. [2021-03-11 14:17:21,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:17:21,575 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:17:21,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:17:21,588 INFO L225 Difference]: With dead ends: 6094 [2021-03-11 14:17:21,588 INFO L226 Difference]: Without dead ends: 6074 [2021-03-11 14:17:21,588 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 289.5ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:17:21,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6074 states. [2021-03-11 14:17:21,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6074 to 3140. [2021-03-11 14:17:21,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3140 states, 3139 states have (on average 4.989487097801848) internal successors, (15662), 3139 states have internal predecessors, (15662), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:21,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3140 states to 3140 states and 15662 transitions. [2021-03-11 14:17:21,727 INFO L78 Accepts]: Start accepts. Automaton has 3140 states and 15662 transitions. Word has length 31 [2021-03-11 14:17:21,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:17:21,727 INFO L480 AbstractCegarLoop]: Abstraction has 3140 states and 15662 transitions. [2021-03-11 14:17:21,727 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:21,727 INFO L276 IsEmpty]: Start isEmpty. Operand 3140 states and 15662 transitions. [2021-03-11 14:17:21,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:17:21,732 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:17:21,732 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:17:21,732 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-03-11 14:17:21,732 INFO L428 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:17:21,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:17:21,732 INFO L82 PathProgramCache]: Analyzing trace with hash -1375836177, now seen corresponding path program 8 times [2021-03-11 14:17:21,732 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:17:21,733 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [651020929] [2021-03-11 14:17:21,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:17:21,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:17:21,765 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:17:21,765 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:17:21,765 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:17:21,766 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:17:21,771 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:17:21,771 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:17:21,778 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:17:21,778 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:17:21,788 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:17:21,789 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:17:21,803 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:17:21,803 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:17:21,823 INFO L142 QuantifierPusher]: treesize reduction 45, result has 51.1 percent of original size [2021-03-11 14:17:21,823 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-11 14:17:21,852 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:17:21,853 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:17:21,885 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:17:21,885 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:17:21,927 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:17:21,928 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:17:21,973 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:17:21,974 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:17:22,014 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:17:22,014 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [651020929] [2021-03-11 14:17:22,014 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:17:22,014 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:17:22,015 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [891998325] [2021-03-11 14:17:22,015 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:17:22,015 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:17:22,015 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:17:22,015 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:17:22,015 INFO L87 Difference]: Start difference. First operand 3140 states and 15662 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:22,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:17:22,183 INFO L93 Difference]: Finished difference Result 6092 states and 27079 transitions. [2021-03-11 14:17:22,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:17:22,183 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:17:22,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:17:22,198 INFO L225 Difference]: With dead ends: 6092 [2021-03-11 14:17:22,198 INFO L226 Difference]: Without dead ends: 6067 [2021-03-11 14:17:22,198 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 277.2ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:17:22,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6067 states. [2021-03-11 14:17:22,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6067 to 3133. [2021-03-11 14:17:22,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3133 states, 3132 states have (on average 4.994252873563219) internal successors, (15642), 3132 states have internal predecessors, (15642), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:22,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3133 states to 3133 states and 15642 transitions. [2021-03-11 14:17:22,370 INFO L78 Accepts]: Start accepts. Automaton has 3133 states and 15642 transitions. Word has length 31 [2021-03-11 14:17:22,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:17:22,370 INFO L480 AbstractCegarLoop]: Abstraction has 3133 states and 15642 transitions. [2021-03-11 14:17:22,370 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:22,370 INFO L276 IsEmpty]: Start isEmpty. Operand 3133 states and 15642 transitions. [2021-03-11 14:17:22,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:17:22,375 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:17:22,375 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:17:22,375 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-03-11 14:17:22,375 INFO L428 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:17:22,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:17:22,375 INFO L82 PathProgramCache]: Analyzing trace with hash -534515745, now seen corresponding path program 9 times [2021-03-11 14:17:22,376 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:17:22,376 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [740237199] [2021-03-11 14:17:22,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:17:22,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:17:22,406 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:17:22,406 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:17:22,407 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:17:22,407 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:17:22,411 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:17:22,411 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:17:22,418 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:17:22,418 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:17:22,428 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:17:22,428 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:17:22,442 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:17:22,443 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:17:22,463 INFO L142 QuantifierPusher]: treesize reduction 45, result has 51.1 percent of original size [2021-03-11 14:17:22,464 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-11 14:17:22,490 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:17:22,491 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:17:22,518 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:17:22,523 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:17:22,562 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:17:22,562 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:17:22,607 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:17:22,607 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:17:22,652 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:17:22,652 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [740237199] [2021-03-11 14:17:22,652 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:17:22,652 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:17:22,652 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [890414006] [2021-03-11 14:17:22,652 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:17:22,653 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:17:22,653 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:17:22,653 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:17:22,653 INFO L87 Difference]: Start difference. First operand 3133 states and 15642 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:22,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:17:22,879 INFO L93 Difference]: Finished difference Result 6096 states and 27088 transitions. [2021-03-11 14:17:22,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:17:22,880 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:17:22,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:17:22,894 INFO L225 Difference]: With dead ends: 6096 [2021-03-11 14:17:22,894 INFO L226 Difference]: Without dead ends: 6076 [2021-03-11 14:17:22,894 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 298.4ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:17:22,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6076 states. [2021-03-11 14:17:23,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6076 to 3141. [2021-03-11 14:17:23,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3141 states, 3140 states have (on average 4.986305732484077) internal successors, (15657), 3140 states have internal predecessors, (15657), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:23,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3141 states to 3141 states and 15657 transitions. [2021-03-11 14:17:23,034 INFO L78 Accepts]: Start accepts. Automaton has 3141 states and 15657 transitions. Word has length 31 [2021-03-11 14:17:23,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:17:23,034 INFO L480 AbstractCegarLoop]: Abstraction has 3141 states and 15657 transitions. [2021-03-11 14:17:23,034 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:23,034 INFO L276 IsEmpty]: Start isEmpty. Operand 3141 states and 15657 transitions. [2021-03-11 14:17:23,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:17:23,039 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:17:23,039 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:17:23,039 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-03-11 14:17:23,039 INFO L428 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:17:23,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:17:23,039 INFO L82 PathProgramCache]: Analyzing trace with hash 380565743, now seen corresponding path program 10 times [2021-03-11 14:17:23,040 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:17:23,040 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1818632941] [2021-03-11 14:17:23,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:17:23,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:17:23,070 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:17:23,071 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:17:23,071 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:17:23,072 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:17:23,083 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:17:23,083 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:17:23,091 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:17:23,092 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:17:23,104 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:17:23,105 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:17:23,122 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:17:23,123 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:17:23,144 INFO L142 QuantifierPusher]: treesize reduction 45, result has 51.1 percent of original size [2021-03-11 14:17:23,145 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-11 14:17:23,171 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:17:23,172 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:17:23,204 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:17:23,205 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:17:23,243 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:17:23,243 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:17:23,289 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:17:23,289 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:17:23,330 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:17:23,331 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1818632941] [2021-03-11 14:17:23,331 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:17:23,331 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:17:23,331 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1912569338] [2021-03-11 14:17:23,331 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:17:23,331 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:17:23,332 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:17:23,332 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:17:23,332 INFO L87 Difference]: Start difference. First operand 3141 states and 15657 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:23,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:17:23,517 INFO L93 Difference]: Finished difference Result 6095 states and 27078 transitions. [2021-03-11 14:17:23,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:17:23,517 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:17:23,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:17:23,530 INFO L225 Difference]: With dead ends: 6095 [2021-03-11 14:17:23,530 INFO L226 Difference]: Without dead ends: 6068 [2021-03-11 14:17:23,531 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 309.8ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:17:23,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6068 states. [2021-03-11 14:17:23,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6068 to 3133. [2021-03-11 14:17:23,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3133 states, 3132 states have (on average 4.992017879948914) internal successors, (15635), 3132 states have internal predecessors, (15635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:23,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3133 states to 3133 states and 15635 transitions. [2021-03-11 14:17:23,670 INFO L78 Accepts]: Start accepts. Automaton has 3133 states and 15635 transitions. Word has length 31 [2021-03-11 14:17:23,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:17:23,670 INFO L480 AbstractCegarLoop]: Abstraction has 3133 states and 15635 transitions. [2021-03-11 14:17:23,671 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:23,671 INFO L276 IsEmpty]: Start isEmpty. Operand 3133 states and 15635 transitions. [2021-03-11 14:17:23,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:17:23,676 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:17:23,676 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:17:23,676 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-03-11 14:17:23,676 INFO L428 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:17:23,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:17:23,677 INFO L82 PathProgramCache]: Analyzing trace with hash 1221886175, now seen corresponding path program 11 times [2021-03-11 14:17:23,677 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:17:23,677 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1146723939] [2021-03-11 14:17:23,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:17:23,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:17:23,712 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:17:23,712 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:17:23,713 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:17:23,713 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:17:23,717 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:17:23,717 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:17:23,723 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:17:23,724 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:17:23,734 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:17:23,734 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:17:23,749 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:17:23,750 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:17:23,771 INFO L142 QuantifierPusher]: treesize reduction 45, result has 51.1 percent of original size [2021-03-11 14:17:23,772 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-11 14:17:23,801 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:17:23,802 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:17:23,834 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:17:23,835 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:17:23,878 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:17:23,878 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:17:23,922 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:17:23,922 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:17:23,956 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:17:23,957 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1146723939] [2021-03-11 14:17:23,957 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:17:23,957 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:17:23,957 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [327105048] [2021-03-11 14:17:23,957 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:17:23,957 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:17:23,957 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:17:23,957 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:17:23,957 INFO L87 Difference]: Start difference. First operand 3133 states and 15635 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:24,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:17:24,220 INFO L93 Difference]: Finished difference Result 6091 states and 27070 transitions. [2021-03-11 14:17:24,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:17:24,220 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:17:24,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:17:24,239 INFO L225 Difference]: With dead ends: 6091 [2021-03-11 14:17:24,239 INFO L226 Difference]: Without dead ends: 6073 [2021-03-11 14:17:24,239 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 297.7ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:17:24,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6073 states. [2021-03-11 14:17:24,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6073 to 3140. [2021-03-11 14:17:24,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3140 states, 3139 states have (on average 4.98502707868748) internal successors, (15648), 3139 states have internal predecessors, (15648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:24,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3140 states to 3140 states and 15648 transitions. [2021-03-11 14:17:24,416 INFO L78 Accepts]: Start accepts. Automaton has 3140 states and 15648 transitions. Word has length 31 [2021-03-11 14:17:24,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:17:24,416 INFO L480 AbstractCegarLoop]: Abstraction has 3140 states and 15648 transitions. [2021-03-11 14:17:24,416 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:24,416 INFO L276 IsEmpty]: Start isEmpty. Operand 3140 states and 15648 transitions. [2021-03-11 14:17:24,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:17:24,422 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:17:24,422 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:17:24,422 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-03-11 14:17:24,422 INFO L428 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:17:24,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:17:24,422 INFO L82 PathProgramCache]: Analyzing trace with hash -468056729, now seen corresponding path program 12 times [2021-03-11 14:17:24,422 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:17:24,422 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [621358888] [2021-03-11 14:17:24,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:17:24,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:17:24,454 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:17:24,454 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:17:24,455 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:17:24,455 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:17:24,459 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:17:24,460 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:17:24,467 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:17:24,468 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:17:24,480 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:17:24,480 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:17:24,498 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:17:24,498 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:17:24,523 INFO L142 QuantifierPusher]: treesize reduction 45, result has 51.1 percent of original size [2021-03-11 14:17:24,524 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-11 14:17:24,556 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:17:24,557 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:17:24,594 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:17:24,595 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:17:24,636 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:17:24,637 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:17:24,678 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:17:24,679 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:17:24,765 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:17:24,766 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [621358888] [2021-03-11 14:17:24,766 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:17:24,766 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:17:24,766 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1658003127] [2021-03-11 14:17:24,766 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:17:24,766 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:17:24,766 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:17:24,766 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:17:24,766 INFO L87 Difference]: Start difference. First operand 3140 states and 15648 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:24,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:17:24,983 INFO L93 Difference]: Finished difference Result 6092 states and 27065 transitions. [2021-03-11 14:17:24,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:17:24,983 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:17:24,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:17:24,996 INFO L225 Difference]: With dead ends: 6092 [2021-03-11 14:17:24,996 INFO L226 Difference]: Without dead ends: 6059 [2021-03-11 14:17:24,996 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 346.8ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:17:25,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6059 states. [2021-03-11 14:17:25,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6059 to 3126. [2021-03-11 14:17:25,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3126 states, 3125 states have (on average 4.9968) internal successors, (15615), 3125 states have internal predecessors, (15615), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:25,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3126 states to 3126 states and 15615 transitions. [2021-03-11 14:17:25,136 INFO L78 Accepts]: Start accepts. Automaton has 3126 states and 15615 transitions. Word has length 31 [2021-03-11 14:17:25,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:17:25,136 INFO L480 AbstractCegarLoop]: Abstraction has 3126 states and 15615 transitions. [2021-03-11 14:17:25,136 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:25,136 INFO L276 IsEmpty]: Start isEmpty. Operand 3126 states and 15615 transitions. [2021-03-11 14:17:25,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:17:25,142 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:17:25,142 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:17:25,142 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-03-11 14:17:25,142 INFO L428 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:17:25,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:17:25,142 INFO L82 PathProgramCache]: Analyzing trace with hash 1422003879, now seen corresponding path program 13 times [2021-03-11 14:17:25,142 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:17:25,142 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [539741610] [2021-03-11 14:17:25,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:17:25,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:17:25,169 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:17:25,169 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:17:25,170 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:17:25,170 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:17:25,174 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:17:25,174 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:17:25,180 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:17:25,180 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:17:25,190 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:17:25,190 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:17:25,205 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:17:25,205 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:17:25,226 INFO L142 QuantifierPusher]: treesize reduction 45, result has 51.1 percent of original size [2021-03-11 14:17:25,227 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-11 14:17:25,256 INFO L142 QuantifierPusher]: treesize reduction 54, result has 50.5 percent of original size [2021-03-11 14:17:25,256 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-11 14:17:25,289 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:17:25,290 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:17:25,329 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:17:25,330 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:17:25,371 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:17:25,371 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:17:25,403 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:17:25,404 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [539741610] [2021-03-11 14:17:25,404 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:17:25,404 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:17:25,404 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [690472299] [2021-03-11 14:17:25,404 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:17:25,404 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:17:25,404 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:17:25,404 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:17:25,404 INFO L87 Difference]: Start difference. First operand 3126 states and 15615 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:25,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:17:25,624 INFO L93 Difference]: Finished difference Result 6116 states and 27130 transitions. [2021-03-11 14:17:25,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:17:25,624 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:17:25,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:17:25,637 INFO L225 Difference]: With dead ends: 6116 [2021-03-11 14:17:25,637 INFO L226 Difference]: Without dead ends: 6096 [2021-03-11 14:17:25,637 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 273.5ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:17:25,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6096 states. [2021-03-11 14:17:25,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6096 to 3148. [2021-03-11 14:17:25,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3148 states, 3147 states have (on average 4.97998093422307) internal successors, (15672), 3147 states have internal predecessors, (15672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:25,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3148 states to 3148 states and 15672 transitions. [2021-03-11 14:17:25,773 INFO L78 Accepts]: Start accepts. Automaton has 3148 states and 15672 transitions. Word has length 31 [2021-03-11 14:17:25,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:17:25,773 INFO L480 AbstractCegarLoop]: Abstraction has 3148 states and 15672 transitions. [2021-03-11 14:17:25,773 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:25,774 INFO L276 IsEmpty]: Start isEmpty. Operand 3148 states and 15672 transitions. [2021-03-11 14:17:25,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:17:25,778 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:17:25,778 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:17:25,778 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-03-11 14:17:25,778 INFO L428 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:17:25,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:17:25,779 INFO L82 PathProgramCache]: Analyzing trace with hash -1535396203, now seen corresponding path program 14 times [2021-03-11 14:17:25,779 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:17:25,779 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1592660656] [2021-03-11 14:17:25,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:17:25,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:17:25,805 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:17:25,806 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:17:25,806 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:17:25,806 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:17:25,810 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:17:25,810 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:17:25,817 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:17:25,817 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:17:25,827 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:17:25,827 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:17:25,844 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:17:25,845 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:17:25,864 INFO L142 QuantifierPusher]: treesize reduction 45, result has 51.1 percent of original size [2021-03-11 14:17:25,864 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-11 14:17:25,891 INFO L142 QuantifierPusher]: treesize reduction 54, result has 50.5 percent of original size [2021-03-11 14:17:25,892 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-11 14:17:25,924 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:17:25,925 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:17:25,959 INFO L142 QuantifierPusher]: treesize reduction 72, result has 49.7 percent of original size [2021-03-11 14:17:25,960 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-03-11 14:17:25,997 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:17:25,997 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:17:26,029 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:17:26,029 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1592660656] [2021-03-11 14:17:26,029 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:17:26,030 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:17:26,030 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2117086002] [2021-03-11 14:17:26,030 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:17:26,030 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:17:26,030 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:17:26,030 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:17:26,030 INFO L87 Difference]: Start difference. First operand 3148 states and 15672 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:26,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:17:26,229 INFO L93 Difference]: Finished difference Result 6118 states and 27124 transitions. [2021-03-11 14:17:26,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:17:26,229 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:17:26,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:17:26,245 INFO L225 Difference]: With dead ends: 6118 [2021-03-11 14:17:26,245 INFO L226 Difference]: Without dead ends: 6085 [2021-03-11 14:17:26,245 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 246.9ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:17:26,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6085 states. [2021-03-11 14:17:26,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6085 to 3137. [2021-03-11 14:17:26,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3137 states, 3136 states have (on average 4.987882653061225) internal successors, (15642), 3136 states have internal predecessors, (15642), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:26,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3137 states to 3137 states and 15642 transitions. [2021-03-11 14:17:26,385 INFO L78 Accepts]: Start accepts. Automaton has 3137 states and 15642 transitions. Word has length 31 [2021-03-11 14:17:26,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:17:26,385 INFO L480 AbstractCegarLoop]: Abstraction has 3137 states and 15642 transitions. [2021-03-11 14:17:26,385 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:26,385 INFO L276 IsEmpty]: Start isEmpty. Operand 3137 states and 15642 transitions. [2021-03-11 14:17:26,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:17:26,390 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:17:26,390 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:17:26,390 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-03-11 14:17:26,390 INFO L428 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:17:26,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:17:26,391 INFO L82 PathProgramCache]: Analyzing trace with hash 1209848261, now seen corresponding path program 15 times [2021-03-11 14:17:26,391 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:17:26,391 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [647109762] [2021-03-11 14:17:26,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:17:26,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:17:26,425 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:17:26,425 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:17:26,426 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:17:26,426 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:17:26,430 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:17:26,430 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:17:26,437 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:17:26,438 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:17:26,449 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:17:26,449 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:17:26,465 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:17:26,466 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:17:26,489 INFO L142 QuantifierPusher]: treesize reduction 45, result has 51.1 percent of original size [2021-03-11 14:17:26,489 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-11 14:17:26,516 INFO L142 QuantifierPusher]: treesize reduction 54, result has 50.5 percent of original size [2021-03-11 14:17:26,517 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-11 14:17:26,550 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:17:26,550 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:17:26,589 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:17:26,590 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:17:26,636 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:17:26,636 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:17:26,675 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:17:26,676 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [647109762] [2021-03-11 14:17:26,676 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:17:26,676 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:17:26,676 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [659775379] [2021-03-11 14:17:26,676 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:17:26,676 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:17:26,676 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:17:26,676 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:17:26,677 INFO L87 Difference]: Start difference. First operand 3137 states and 15642 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:26,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:17:26,932 INFO L93 Difference]: Finished difference Result 6110 states and 27109 transitions. [2021-03-11 14:17:26,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:17:26,932 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:17:26,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:17:26,945 INFO L225 Difference]: With dead ends: 6110 [2021-03-11 14:17:26,945 INFO L226 Difference]: Without dead ends: 6090 [2021-03-11 14:17:26,945 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 292.9ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:17:27,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6090 states. [2021-03-11 14:17:27,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6090 to 3145. [2021-03-11 14:17:27,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3145 states, 3144 states have (on average 4.979961832061068) internal successors, (15657), 3144 states have internal predecessors, (15657), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:27,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3145 states to 3145 states and 15657 transitions. [2021-03-11 14:17:27,087 INFO L78 Accepts]: Start accepts. Automaton has 3145 states and 15657 transitions. Word has length 31 [2021-03-11 14:17:27,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:17:27,087 INFO L480 AbstractCegarLoop]: Abstraction has 3145 states and 15657 transitions. [2021-03-11 14:17:27,087 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:27,087 INFO L276 IsEmpty]: Start isEmpty. Operand 3145 states and 15657 transitions. [2021-03-11 14:17:27,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:17:27,092 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:17:27,092 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:17:27,092 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-03-11 14:17:27,092 INFO L428 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:17:27,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:17:27,092 INFO L82 PathProgramCache]: Analyzing trace with hash 2124929749, now seen corresponding path program 16 times [2021-03-11 14:17:27,092 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:17:27,093 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [640855916] [2021-03-11 14:17:27,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:17:27,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:17:27,120 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:17:27,120 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:17:27,121 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:17:27,121 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:17:27,125 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:17:27,125 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:17:27,132 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:17:27,133 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:17:27,144 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:17:27,144 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:17:27,159 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:17:27,160 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:17:27,181 INFO L142 QuantifierPusher]: treesize reduction 45, result has 51.1 percent of original size [2021-03-11 14:17:27,181 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-11 14:17:27,209 INFO L142 QuantifierPusher]: treesize reduction 54, result has 50.5 percent of original size [2021-03-11 14:17:27,210 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-11 14:17:27,249 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:17:27,250 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:17:27,288 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:17:27,289 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:17:27,328 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:17:27,329 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:17:27,369 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:17:27,369 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [640855916] [2021-03-11 14:17:27,369 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:17:27,369 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:17:27,369 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2087117796] [2021-03-11 14:17:27,369 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:17:27,369 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:17:27,370 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:17:27,370 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:17:27,370 INFO L87 Difference]: Start difference. First operand 3145 states and 15657 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:27,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:17:27,526 INFO L93 Difference]: Finished difference Result 6109 states and 27099 transitions. [2021-03-11 14:17:27,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:17:27,526 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:17:27,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:17:27,540 INFO L225 Difference]: With dead ends: 6109 [2021-03-11 14:17:27,540 INFO L226 Difference]: Without dead ends: 6082 [2021-03-11 14:17:27,540 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 290.4ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:17:27,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6082 states. [2021-03-11 14:17:27,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6082 to 3137. [2021-03-11 14:17:27,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3137 states, 3136 states have (on average 4.985331632653061) internal successors, (15634), 3136 states have internal predecessors, (15634), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:27,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3137 states to 3137 states and 15634 transitions. [2021-03-11 14:17:27,677 INFO L78 Accepts]: Start accepts. Automaton has 3137 states and 15634 transitions. Word has length 31 [2021-03-11 14:17:27,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:17:27,677 INFO L480 AbstractCegarLoop]: Abstraction has 3137 states and 15634 transitions. [2021-03-11 14:17:27,677 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:27,677 INFO L276 IsEmpty]: Start isEmpty. Operand 3137 states and 15634 transitions. [2021-03-11 14:17:27,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:17:27,682 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:17:27,682 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:17:27,682 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-03-11 14:17:27,682 INFO L428 AbstractCegarLoop]: === Iteration 26 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:17:27,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:17:27,682 INFO L82 PathProgramCache]: Analyzing trace with hash 1062326149, now seen corresponding path program 17 times [2021-03-11 14:17:27,682 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:17:27,682 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [714084450] [2021-03-11 14:17:27,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:17:27,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:17:27,705 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:17:27,706 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:17:27,706 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:17:27,706 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:17:27,710 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:17:27,710 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:17:27,717 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:17:27,717 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:17:27,727 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:17:27,727 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:17:27,742 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:17:27,742 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:17:27,765 INFO L142 QuantifierPusher]: treesize reduction 45, result has 51.1 percent of original size [2021-03-11 14:17:27,766 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-11 14:17:27,794 INFO L142 QuantifierPusher]: treesize reduction 54, result has 50.5 percent of original size [2021-03-11 14:17:27,794 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-11 14:17:27,827 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:17:27,827 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:17:27,865 INFO L142 QuantifierPusher]: treesize reduction 72, result has 49.7 percent of original size [2021-03-11 14:17:27,866 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-03-11 14:17:27,911 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:17:27,912 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:17:27,953 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:17:27,954 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [714084450] [2021-03-11 14:17:27,954 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:17:27,954 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:17:27,954 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [145205206] [2021-03-11 14:17:27,954 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:17:27,954 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:17:27,955 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:17:27,955 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:17:27,955 INFO L87 Difference]: Start difference. First operand 3137 states and 15634 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:28,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:17:28,107 INFO L93 Difference]: Finished difference Result 6115 states and 27109 transitions. [2021-03-11 14:17:28,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:17:28,107 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:17:28,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:17:28,124 INFO L225 Difference]: With dead ends: 6115 [2021-03-11 14:17:28,124 INFO L226 Difference]: Without dead ends: 6093 [2021-03-11 14:17:28,124 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 272.0ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:17:28,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6093 states. [2021-03-11 14:17:28,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6093 to 3146. [2021-03-11 14:17:28,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3146 states, 3145 states have (on average 4.976152623211447) internal successors, (15650), 3145 states have internal predecessors, (15650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:28,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3146 states to 3146 states and 15650 transitions. [2021-03-11 14:17:28,271 INFO L78 Accepts]: Start accepts. Automaton has 3146 states and 15650 transitions. Word has length 31 [2021-03-11 14:17:28,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:17:28,271 INFO L480 AbstractCegarLoop]: Abstraction has 3146 states and 15650 transitions. [2021-03-11 14:17:28,271 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:28,271 INFO L276 IsEmpty]: Start isEmpty. Operand 3146 states and 15650 transitions. [2021-03-11 14:17:28,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:17:28,276 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:17:28,277 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:17:28,277 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-03-11 14:17:28,277 INFO L428 AbstractCegarLoop]: === Iteration 27 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:17:28,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:17:28,277 INFO L82 PathProgramCache]: Analyzing trace with hash 639840423, now seen corresponding path program 18 times [2021-03-11 14:17:28,277 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:17:28,277 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1761000650] [2021-03-11 14:17:28,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:17:28,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:17:28,300 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:17:28,300 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:17:28,301 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:17:28,301 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:17:28,305 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:17:28,305 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:17:28,312 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:17:28,312 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:17:28,322 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:17:28,323 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:17:28,339 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:17:28,339 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:17:28,359 INFO L142 QuantifierPusher]: treesize reduction 45, result has 51.1 percent of original size [2021-03-11 14:17:28,359 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-11 14:17:28,384 INFO L142 QuantifierPusher]: treesize reduction 54, result has 50.5 percent of original size [2021-03-11 14:17:28,385 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-11 14:17:28,418 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:17:28,419 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:17:28,450 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:17:28,450 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:17:28,489 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:17:28,489 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:17:28,522 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:17:28,522 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1761000650] [2021-03-11 14:17:28,522 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:17:28,522 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:17:28,522 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1209158227] [2021-03-11 14:17:28,522 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:17:28,522 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:17:28,523 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:17:28,523 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:17:28,523 INFO L87 Difference]: Start difference. First operand 3146 states and 15650 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:28,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:17:28,666 INFO L93 Difference]: Finished difference Result 6112 states and 27095 transitions. [2021-03-11 14:17:28,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:17:28,667 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:17:28,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:17:28,679 INFO L225 Difference]: With dead ends: 6112 [2021-03-11 14:17:28,679 INFO L226 Difference]: Without dead ends: 6073 [2021-03-11 14:17:28,680 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 259.8ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:17:28,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6073 states. [2021-03-11 14:17:28,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6073 to 3126. [2021-03-11 14:17:28,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3126 states, 3125 states have (on average 4.9936) internal successors, (15605), 3125 states have internal predecessors, (15605), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:28,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3126 states to 3126 states and 15605 transitions. [2021-03-11 14:17:28,816 INFO L78 Accepts]: Start accepts. Automaton has 3126 states and 15605 transitions. Word has length 31 [2021-03-11 14:17:28,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:17:28,816 INFO L480 AbstractCegarLoop]: Abstraction has 3126 states and 15605 transitions. [2021-03-11 14:17:28,816 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:28,816 INFO L276 IsEmpty]: Start isEmpty. Operand 3126 states and 15605 transitions. [2021-03-11 14:17:28,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:17:28,821 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:17:28,821 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:17:28,821 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-03-11 14:17:28,821 INFO L428 AbstractCegarLoop]: === Iteration 28 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:17:28,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:17:28,821 INFO L82 PathProgramCache]: Analyzing trace with hash -1654054353, now seen corresponding path program 19 times [2021-03-11 14:17:28,822 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:17:28,822 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1748056297] [2021-03-11 14:17:28,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:17:28,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:17:28,846 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:17:28,847 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:17:28,847 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:17:28,847 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:17:28,851 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:17:28,852 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:17:28,858 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:17:28,858 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:17:28,868 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:17:28,868 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:17:28,883 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:17:28,884 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:17:28,906 INFO L142 QuantifierPusher]: treesize reduction 45, result has 51.1 percent of original size [2021-03-11 14:17:28,907 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-11 14:17:28,933 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:17:28,933 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:17:28,958 INFO L142 QuantifierPusher]: treesize reduction 54, result has 55.4 percent of original size [2021-03-11 14:17:28,958 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-03-11 14:17:29,011 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:17:29,011 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:17:29,047 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:17:29,048 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:17:29,079 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:17:29,080 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1748056297] [2021-03-11 14:17:29,080 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:17:29,080 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:17:29,080 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [357771678] [2021-03-11 14:17:29,080 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:17:29,080 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:17:29,080 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:17:29,080 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:17:29,080 INFO L87 Difference]: Start difference. First operand 3126 states and 15605 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:29,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:17:29,228 INFO L93 Difference]: Finished difference Result 6100 states and 27084 transitions. [2021-03-11 14:17:29,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:17:29,228 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:17:29,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:17:29,242 INFO L225 Difference]: With dead ends: 6100 [2021-03-11 14:17:29,242 INFO L226 Difference]: Without dead ends: 6082 [2021-03-11 14:17:29,242 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 270.6ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:17:29,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6082 states. [2021-03-11 14:17:29,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6082 to 3142. [2021-03-11 14:17:29,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3142 states, 3141 states have (on average 4.982489652976759) internal successors, (15650), 3141 states have internal predecessors, (15650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:29,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3142 states to 3142 states and 15650 transitions. [2021-03-11 14:17:29,399 INFO L78 Accepts]: Start accepts. Automaton has 3142 states and 15650 transitions. Word has length 31 [2021-03-11 14:17:29,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:17:29,399 INFO L480 AbstractCegarLoop]: Abstraction has 3142 states and 15650 transitions. [2021-03-11 14:17:29,399 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:29,399 INFO L276 IsEmpty]: Start isEmpty. Operand 3142 states and 15650 transitions. [2021-03-11 14:17:29,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:17:29,404 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:17:29,404 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:17:29,404 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-03-11 14:17:29,404 INFO L428 AbstractCegarLoop]: === Iteration 29 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:17:29,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:17:29,405 INFO L82 PathProgramCache]: Analyzing trace with hash 1373455765, now seen corresponding path program 20 times [2021-03-11 14:17:29,405 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:17:29,405 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1207323077] [2021-03-11 14:17:29,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:17:29,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:17:29,430 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:17:29,431 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:17:29,433 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:17:29,433 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:17:29,437 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:17:29,437 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:17:29,444 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:17:29,445 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:17:29,456 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:17:29,456 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:17:29,471 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:17:29,471 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:17:29,492 INFO L142 QuantifierPusher]: treesize reduction 45, result has 51.1 percent of original size [2021-03-11 14:17:29,493 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-11 14:17:29,519 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:17:29,520 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:17:29,557 INFO L142 QuantifierPusher]: treesize reduction 54, result has 55.4 percent of original size [2021-03-11 14:17:29,557 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-03-11 14:17:29,617 INFO L142 QuantifierPusher]: treesize reduction 72, result has 49.7 percent of original size [2021-03-11 14:17:29,618 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-03-11 14:17:29,657 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:17:29,671 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:17:29,710 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:17:29,710 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1207323077] [2021-03-11 14:17:29,710 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:17:29,710 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:17:29,710 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [880315269] [2021-03-11 14:17:29,710 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:17:29,711 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:17:29,711 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:17:29,711 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:17:29,711 INFO L87 Difference]: Start difference. First operand 3142 states and 15650 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:29,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:17:29,845 INFO L93 Difference]: Finished difference Result 6104 states and 27084 transitions. [2021-03-11 14:17:29,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:17:29,845 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:17:29,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:17:29,859 INFO L225 Difference]: With dead ends: 6104 [2021-03-11 14:17:29,859 INFO L226 Difference]: Without dead ends: 6074 [2021-03-11 14:17:29,860 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 277.2ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:17:29,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6074 states. [2021-03-11 14:17:30,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6074 to 3134. [2021-03-11 14:17:30,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3134 states, 3133 states have (on average 4.987871050111714) internal successors, (15627), 3133 states have internal predecessors, (15627), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:30,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3134 states to 3134 states and 15627 transitions. [2021-03-11 14:17:30,019 INFO L78 Accepts]: Start accepts. Automaton has 3134 states and 15627 transitions. Word has length 31 [2021-03-11 14:17:30,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:17:30,019 INFO L480 AbstractCegarLoop]: Abstraction has 3134 states and 15627 transitions. [2021-03-11 14:17:30,019 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:30,019 INFO L276 IsEmpty]: Start isEmpty. Operand 3134 states and 15627 transitions. [2021-03-11 14:17:30,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:17:30,024 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:17:30,024 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:17:30,024 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-03-11 14:17:30,024 INFO L428 AbstractCegarLoop]: === Iteration 30 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:17:30,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:17:30,025 INFO L82 PathProgramCache]: Analyzing trace with hash -1866209971, now seen corresponding path program 21 times [2021-03-11 14:17:30,025 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:17:30,025 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [16348952] [2021-03-11 14:17:30,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:17:30,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:17:30,056 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:17:30,067 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:17:30,067 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:17:30,068 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:17:30,072 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:17:30,072 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:17:30,080 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:17:30,080 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:17:30,092 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:17:30,092 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:17:30,109 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:17:30,109 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:17:30,130 INFO L142 QuantifierPusher]: treesize reduction 45, result has 51.1 percent of original size [2021-03-11 14:17:30,131 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-11 14:17:30,160 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:17:30,160 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:17:30,196 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:17:30,196 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:17:30,230 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:17:30,231 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:17:30,269 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:17:30,270 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:17:30,305 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:17:30,305 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [16348952] [2021-03-11 14:17:30,305 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:17:30,305 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:17:30,305 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1104555711] [2021-03-11 14:17:30,305 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:17:30,305 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:17:30,306 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:17:30,306 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:17:30,306 INFO L87 Difference]: Start difference. First operand 3134 states and 15627 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:30,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:17:30,515 INFO L93 Difference]: Finished difference Result 6096 states and 27069 transitions. [2021-03-11 14:17:30,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:17:30,515 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:17:30,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:17:30,534 INFO L225 Difference]: With dead ends: 6096 [2021-03-11 14:17:30,534 INFO L226 Difference]: Without dead ends: 6078 [2021-03-11 14:17:30,536 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 295.2ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:17:30,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6078 states. [2021-03-11 14:17:30,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6078 to 3141. [2021-03-11 14:17:30,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3141 states, 3140 states have (on average 4.980891719745223) internal successors, (15640), 3140 states have internal predecessors, (15640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:30,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3141 states to 3141 states and 15640 transitions. [2021-03-11 14:17:30,736 INFO L78 Accepts]: Start accepts. Automaton has 3141 states and 15640 transitions. Word has length 31 [2021-03-11 14:17:30,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:17:30,736 INFO L480 AbstractCegarLoop]: Abstraction has 3141 states and 15640 transitions. [2021-03-11 14:17:30,736 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:30,736 INFO L276 IsEmpty]: Start isEmpty. Operand 3141 states and 15640 transitions. [2021-03-11 14:17:30,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:17:30,741 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:17:30,741 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:17:30,741 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-03-11 14:17:30,741 INFO L428 AbstractCegarLoop]: === Iteration 31 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:17:30,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:17:30,742 INFO L82 PathProgramCache]: Analyzing trace with hash 738814421, now seen corresponding path program 22 times [2021-03-11 14:17:30,742 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:17:30,742 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1921446101] [2021-03-11 14:17:30,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:17:30,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:17:30,767 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:17:30,768 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:17:30,768 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:17:30,768 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:17:30,772 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:17:30,773 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:17:30,780 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:17:30,780 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:17:30,790 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:17:30,791 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:17:30,806 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:17:30,806 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:17:30,826 INFO L142 QuantifierPusher]: treesize reduction 45, result has 51.1 percent of original size [2021-03-11 14:17:30,826 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-11 14:17:30,851 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:17:30,852 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:17:30,886 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:17:30,886 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:17:30,928 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:17:30,929 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:17:30,975 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:17:30,976 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:17:31,011 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:17:31,011 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1921446101] [2021-03-11 14:17:31,012 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:17:31,012 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:17:31,012 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [555130357] [2021-03-11 14:17:31,012 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:17:31,012 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:17:31,012 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:17:31,012 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:17:31,012 INFO L87 Difference]: Start difference. First operand 3141 states and 15640 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:31,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:17:31,213 INFO L93 Difference]: Finished difference Result 6097 states and 27064 transitions. [2021-03-11 14:17:31,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:17:31,214 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:17:31,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:17:31,228 INFO L225 Difference]: With dead ends: 6097 [2021-03-11 14:17:31,228 INFO L226 Difference]: Without dead ends: 6071 [2021-03-11 14:17:31,229 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 283.1ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:17:31,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6071 states. [2021-03-11 14:17:31,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6071 to 3134. [2021-03-11 14:17:31,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3134 states, 3133 states have (on average 4.985636769869135) internal successors, (15620), 3133 states have internal predecessors, (15620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:31,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3134 states to 3134 states and 15620 transitions. [2021-03-11 14:17:31,379 INFO L78 Accepts]: Start accepts. Automaton has 3134 states and 15620 transitions. Word has length 31 [2021-03-11 14:17:31,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:17:31,379 INFO L480 AbstractCegarLoop]: Abstraction has 3134 states and 15620 transitions. [2021-03-11 14:17:31,379 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:31,379 INFO L276 IsEmpty]: Start isEmpty. Operand 3134 states and 15620 transitions. [2021-03-11 14:17:31,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:17:31,384 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:17:31,384 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:17:31,384 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2021-03-11 14:17:31,384 INFO L428 AbstractCegarLoop]: === Iteration 32 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:17:31,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:17:31,385 INFO L82 PathProgramCache]: Analyzing trace with hash 524833293, now seen corresponding path program 23 times [2021-03-11 14:17:31,385 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:17:31,385 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1993473522] [2021-03-11 14:17:31,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:17:31,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:17:31,409 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:17:31,410 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:17:31,410 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:17:31,410 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:17:31,427 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:17:31,427 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:17:31,435 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:17:31,435 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:17:31,446 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:17:31,446 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:17:31,463 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:17:31,463 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:17:31,486 INFO L142 QuantifierPusher]: treesize reduction 45, result has 51.1 percent of original size [2021-03-11 14:17:31,487 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-11 14:17:31,515 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:17:31,516 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:17:31,548 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:17:31,549 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:17:31,580 INFO L142 QuantifierPusher]: treesize reduction 72, result has 49.7 percent of original size [2021-03-11 14:17:31,581 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-03-11 14:17:31,618 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:17:31,618 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:17:31,652 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:17:31,652 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1993473522] [2021-03-11 14:17:31,652 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:17:31,652 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:17:31,652 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [892080609] [2021-03-11 14:17:31,652 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:17:31,652 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:17:31,653 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:17:31,653 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:17:31,653 INFO L87 Difference]: Start difference. First operand 3134 states and 15620 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:31,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:17:31,770 INFO L93 Difference]: Finished difference Result 6106 states and 27081 transitions. [2021-03-11 14:17:31,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:17:31,770 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:17:31,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:17:31,784 INFO L225 Difference]: With dead ends: 6106 [2021-03-11 14:17:31,784 INFO L226 Difference]: Without dead ends: 6084 [2021-03-11 14:17:31,784 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 242.8ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:17:31,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6084 states. [2021-03-11 14:17:31,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6084 to 3143. [2021-03-11 14:17:31,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3143 states, 3142 states have (on average 4.9764481222151495) internal successors, (15636), 3142 states have internal predecessors, (15636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:31,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3143 states to 3143 states and 15636 transitions. [2021-03-11 14:17:31,922 INFO L78 Accepts]: Start accepts. Automaton has 3143 states and 15636 transitions. Word has length 31 [2021-03-11 14:17:31,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:17:31,922 INFO L480 AbstractCegarLoop]: Abstraction has 3143 states and 15636 transitions. [2021-03-11 14:17:31,922 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:31,922 INFO L276 IsEmpty]: Start isEmpty. Operand 3143 states and 15636 transitions. [2021-03-11 14:17:31,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:17:31,927 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:17:31,927 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:17:31,928 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2021-03-11 14:17:31,928 INFO L428 AbstractCegarLoop]: === Iteration 33 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:17:31,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:17:31,928 INFO L82 PathProgramCache]: Analyzing trace with hash 102347567, now seen corresponding path program 24 times [2021-03-11 14:17:31,928 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:17:31,928 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [311062780] [2021-03-11 14:17:31,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:17:31,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:17:31,949 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:17:31,949 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:17:31,949 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:17:31,950 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:17:31,953 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:17:31,954 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:17:31,960 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:17:31,960 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:17:31,970 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:17:31,971 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:17:31,985 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:17:31,986 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:17:32,008 INFO L142 QuantifierPusher]: treesize reduction 45, result has 51.1 percent of original size [2021-03-11 14:17:32,008 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-11 14:17:32,037 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:17:32,038 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:17:32,070 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:17:32,071 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:17:32,102 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:17:32,102 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:17:32,138 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:17:32,138 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:17:32,171 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:17:32,172 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [311062780] [2021-03-11 14:17:32,172 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:17:32,172 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:17:32,172 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1565367430] [2021-03-11 14:17:32,172 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:17:32,172 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:17:32,172 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:17:32,172 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:17:32,172 INFO L87 Difference]: Start difference. First operand 3143 states and 15636 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:32,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:17:32,346 INFO L93 Difference]: Finished difference Result 6103 states and 27067 transitions. [2021-03-11 14:17:32,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:17:32,346 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:17:32,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:17:32,359 INFO L225 Difference]: With dead ends: 6103 [2021-03-11 14:17:32,359 INFO L226 Difference]: Without dead ends: 6056 [2021-03-11 14:17:32,359 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 265.0ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:17:32,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6056 states. [2021-03-11 14:17:32,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6056 to 3115. [2021-03-11 14:17:32,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3115 states, 3114 states have (on average 5.002247912652537) internal successors, (15577), 3114 states have internal predecessors, (15577), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:32,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3115 states to 3115 states and 15577 transitions. [2021-03-11 14:17:32,501 INFO L78 Accepts]: Start accepts. Automaton has 3115 states and 15577 transitions. Word has length 31 [2021-03-11 14:17:32,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:17:32,501 INFO L480 AbstractCegarLoop]: Abstraction has 3115 states and 15577 transitions. [2021-03-11 14:17:32,501 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:32,501 INFO L276 IsEmpty]: Start isEmpty. Operand 3115 states and 15577 transitions. [2021-03-11 14:17:32,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:17:32,506 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:17:32,507 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:17:32,507 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2021-03-11 14:17:32,507 INFO L428 AbstractCegarLoop]: === Iteration 34 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:17:32,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:17:32,507 INFO L82 PathProgramCache]: Analyzing trace with hash 1534154543, now seen corresponding path program 25 times [2021-03-11 14:17:32,507 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:17:32,507 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1255622321] [2021-03-11 14:17:32,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:17:32,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:17:32,528 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:17:32,529 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:17:32,529 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:17:32,529 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:17:32,533 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:17:32,533 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:17:32,540 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:17:32,540 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:17:32,550 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:17:32,551 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:17:32,565 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:17:32,565 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:17:32,586 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:17:32,586 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:17:32,614 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:17:32,614 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:17:32,645 INFO L142 QuantifierPusher]: treesize reduction 45, result has 59.1 percent of original size [2021-03-11 14:17:32,645 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:17:32,697 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:17:32,697 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:17:32,734 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:17:32,735 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:17:32,786 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:17:32,786 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1255622321] [2021-03-11 14:17:32,786 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:17:32,786 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:17:32,786 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1635408054] [2021-03-11 14:17:32,787 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:17:32,787 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:17:32,787 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:17:32,787 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:17:32,787 INFO L87 Difference]: Start difference. First operand 3115 states and 15577 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:32,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:17:32,949 INFO L93 Difference]: Finished difference Result 6071 states and 27023 transitions. [2021-03-11 14:17:32,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:17:32,950 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:17:32,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:17:32,963 INFO L225 Difference]: With dead ends: 6071 [2021-03-11 14:17:32,963 INFO L226 Difference]: Without dead ends: 6051 [2021-03-11 14:17:32,963 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 303.1ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:17:33,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6051 states. [2021-03-11 14:17:33,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6051 to 3135. [2021-03-11 14:17:33,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3135 states, 3134 states have (on average 4.992661135928526) internal successors, (15647), 3134 states have internal predecessors, (15647), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:33,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3135 states to 3135 states and 15647 transitions. [2021-03-11 14:17:33,122 INFO L78 Accepts]: Start accepts. Automaton has 3135 states and 15647 transitions. Word has length 31 [2021-03-11 14:17:33,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:17:33,122 INFO L480 AbstractCegarLoop]: Abstraction has 3135 states and 15647 transitions. [2021-03-11 14:17:33,122 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:33,122 INFO L276 IsEmpty]: Start isEmpty. Operand 3135 states and 15647 transitions. [2021-03-11 14:17:33,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:17:33,127 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:17:33,127 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:17:33,127 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2021-03-11 14:17:33,127 INFO L428 AbstractCegarLoop]: === Iteration 35 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:17:33,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:17:33,127 INFO L82 PathProgramCache]: Analyzing trace with hash 689183091, now seen corresponding path program 26 times [2021-03-11 14:17:33,127 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:17:33,127 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1187007144] [2021-03-11 14:17:33,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:17:33,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:17:33,150 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:17:33,151 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:17:33,151 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:17:33,151 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:17:33,155 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:17:33,156 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:17:33,163 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:17:33,163 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:17:33,177 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:17:33,177 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:17:33,193 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:17:33,194 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:17:33,213 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:17:33,214 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:17:33,236 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:17:33,236 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:17:33,263 INFO L142 QuantifierPusher]: treesize reduction 45, result has 59.1 percent of original size [2021-03-11 14:17:33,263 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:17:33,316 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:17:33,317 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:17:33,355 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:17:33,356 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:17:33,392 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:17:33,392 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1187007144] [2021-03-11 14:17:33,392 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:17:33,392 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:17:33,392 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687444929] [2021-03-11 14:17:33,392 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:17:33,392 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:17:33,393 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:17:33,393 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:17:33,393 INFO L87 Difference]: Start difference. First operand 3135 states and 15647 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:33,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:17:33,569 INFO L93 Difference]: Finished difference Result 6068 states and 27011 transitions. [2021-03-11 14:17:33,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:17:33,570 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:17:33,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:17:33,584 INFO L225 Difference]: With dead ends: 6068 [2021-03-11 14:17:33,584 INFO L226 Difference]: Without dead ends: 6045 [2021-03-11 14:17:33,584 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 283.0ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:17:33,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6045 states. [2021-03-11 14:17:33,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6045 to 3129. [2021-03-11 14:17:33,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3129 states, 3128 states have (on average 4.996803069053708) internal successors, (15630), 3128 states have internal predecessors, (15630), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:33,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3129 states to 3129 states and 15630 transitions. [2021-03-11 14:17:33,740 INFO L78 Accepts]: Start accepts. Automaton has 3129 states and 15630 transitions. Word has length 31 [2021-03-11 14:17:33,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:17:33,740 INFO L480 AbstractCegarLoop]: Abstraction has 3129 states and 15630 transitions. [2021-03-11 14:17:33,741 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:33,741 INFO L276 IsEmpty]: Start isEmpty. Operand 3129 states and 15630 transitions. [2021-03-11 14:17:33,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:17:33,745 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:17:33,746 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:17:33,746 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2021-03-11 14:17:33,746 INFO L428 AbstractCegarLoop]: === Iteration 36 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:17:33,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:17:33,746 INFO L82 PathProgramCache]: Analyzing trace with hash 1109843307, now seen corresponding path program 27 times [2021-03-11 14:17:33,746 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:17:33,746 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1500792864] [2021-03-11 14:17:33,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:17:33,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:17:33,771 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:17:33,771 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:17:33,771 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:17:33,772 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:17:33,776 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:17:33,776 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:17:33,783 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:17:33,784 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:17:33,794 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:17:33,795 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:17:33,810 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:17:33,810 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:17:33,830 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:17:33,830 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:17:33,855 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:17:33,855 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:17:33,888 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:17:33,889 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:17:33,931 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:17:33,932 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:17:33,983 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:17:33,984 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:17:34,029 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:17:34,029 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1500792864] [2021-03-11 14:17:34,029 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:17:34,029 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:17:34,029 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811864026] [2021-03-11 14:17:34,030 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:17:34,030 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:17:34,030 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:17:34,030 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:17:34,030 INFO L87 Difference]: Start difference. First operand 3129 states and 15630 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:34,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:17:34,225 INFO L93 Difference]: Finished difference Result 6073 states and 27022 transitions. [2021-03-11 14:17:34,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:17:34,226 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:17:34,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:17:34,239 INFO L225 Difference]: With dead ends: 6073 [2021-03-11 14:17:34,239 INFO L226 Difference]: Without dead ends: 6053 [2021-03-11 14:17:34,239 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 303.1ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:17:34,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6053 states. [2021-03-11 14:17:34,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6053 to 3136. [2021-03-11 14:17:34,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3136 states, 3135 states have (on average 4.989792663476874) internal successors, (15643), 3135 states have internal predecessors, (15643), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:34,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3136 states to 3136 states and 15643 transitions. [2021-03-11 14:17:34,395 INFO L78 Accepts]: Start accepts. Automaton has 3136 states and 15643 transitions. Word has length 31 [2021-03-11 14:17:34,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:17:34,395 INFO L480 AbstractCegarLoop]: Abstraction has 3136 states and 15643 transitions. [2021-03-11 14:17:34,395 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:34,395 INFO L276 IsEmpty]: Start isEmpty. Operand 3136 states and 15643 transitions. [2021-03-11 14:17:34,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:17:34,400 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:17:34,400 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:17:34,400 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2021-03-11 14:17:34,400 INFO L428 AbstractCegarLoop]: === Iteration 37 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:17:34,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:17:34,401 INFO L82 PathProgramCache]: Analyzing trace with hash -580099597, now seen corresponding path program 28 times [2021-03-11 14:17:34,401 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:17:34,401 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1535911027] [2021-03-11 14:17:34,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:17:34,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:17:34,424 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:17:34,425 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:17:34,425 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:17:34,425 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:17:34,429 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:17:34,430 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:17:34,437 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:17:34,437 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:17:34,448 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:17:34,449 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:17:34,464 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:17:34,465 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:17:34,485 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:17:34,486 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:17:34,511 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:17:34,511 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:17:34,544 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:17:34,545 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:17:34,589 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:17:34,590 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:17:34,639 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:17:34,639 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:17:34,683 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:17:34,683 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1535911027] [2021-03-11 14:17:34,683 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:17:34,683 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:17:34,684 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1392684121] [2021-03-11 14:17:34,684 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:17:34,684 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:17:34,684 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:17:34,684 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:17:34,685 INFO L87 Difference]: Start difference. First operand 3136 states and 15643 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:34,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:17:34,887 INFO L93 Difference]: Finished difference Result 6071 states and 27011 transitions. [2021-03-11 14:17:34,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:17:34,888 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:17:34,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:17:34,906 INFO L225 Difference]: With dead ends: 6071 [2021-03-11 14:17:34,906 INFO L226 Difference]: Without dead ends: 6046 [2021-03-11 14:17:34,906 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 314.9ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:17:35,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6046 states. [2021-03-11 14:17:35,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6046 to 3129. [2021-03-11 14:17:35,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3129 states, 3128 states have (on average 4.994884910485934) internal successors, (15624), 3128 states have internal predecessors, (15624), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:35,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3129 states to 3129 states and 15624 transitions. [2021-03-11 14:17:35,129 INFO L78 Accepts]: Start accepts. Automaton has 3129 states and 15624 transitions. Word has length 31 [2021-03-11 14:17:35,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:17:35,129 INFO L480 AbstractCegarLoop]: Abstraction has 3129 states and 15624 transitions. [2021-03-11 14:17:35,129 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:35,129 INFO L276 IsEmpty]: Start isEmpty. Operand 3129 states and 15624 transitions. [2021-03-11 14:17:35,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:17:35,136 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:17:35,136 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:17:35,136 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2021-03-11 14:17:35,136 INFO L428 AbstractCegarLoop]: === Iteration 38 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:17:35,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:17:35,137 INFO L82 PathProgramCache]: Analyzing trace with hash -159439381, now seen corresponding path program 29 times [2021-03-11 14:17:35,137 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:17:35,137 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [687663474] [2021-03-11 14:17:35,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:17:35,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:17:35,161 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:17:35,161 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:17:35,162 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:17:35,162 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:17:35,166 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:17:35,167 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:17:35,174 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:17:35,174 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:17:35,186 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:17:35,186 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:17:35,203 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:17:35,203 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:17:35,222 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:17:35,222 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:17:35,244 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:17:35,245 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:17:35,272 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:17:35,273 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:17:35,306 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:17:35,306 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:17:35,345 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:17:35,346 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:17:35,381 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:17:35,381 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [687663474] [2021-03-11 14:17:35,381 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:17:35,381 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:17:35,381 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1451775263] [2021-03-11 14:17:35,384 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:17:35,384 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:17:35,384 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:17:35,384 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:17:35,384 INFO L87 Difference]: Start difference. First operand 3129 states and 15624 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:35,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:17:35,573 INFO L93 Difference]: Finished difference Result 6066 states and 27001 transitions. [2021-03-11 14:17:35,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:17:35,574 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:17:35,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:17:35,587 INFO L225 Difference]: With dead ends: 6066 [2021-03-11 14:17:35,588 INFO L226 Difference]: Without dead ends: 6049 [2021-03-11 14:17:35,588 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 262.0ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:17:35,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6049 states. [2021-03-11 14:17:35,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6049 to 3135. [2021-03-11 14:17:35,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3135 states, 3134 states have (on average 4.988832163369496) internal successors, (15635), 3134 states have internal predecessors, (15635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:35,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3135 states to 3135 states and 15635 transitions. [2021-03-11 14:17:35,744 INFO L78 Accepts]: Start accepts. Automaton has 3135 states and 15635 transitions. Word has length 31 [2021-03-11 14:17:35,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:17:35,744 INFO L480 AbstractCegarLoop]: Abstraction has 3135 states and 15635 transitions. [2021-03-11 14:17:35,744 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:35,744 INFO L276 IsEmpty]: Start isEmpty. Operand 3135 states and 15635 transitions. [2021-03-11 14:17:35,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:17:35,749 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:17:35,749 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:17:35,749 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2021-03-11 14:17:35,750 INFO L428 AbstractCegarLoop]: === Iteration 39 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:17:35,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:17:35,750 INFO L82 PathProgramCache]: Analyzing trace with hash -1004410833, now seen corresponding path program 30 times [2021-03-11 14:17:35,750 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:17:35,750 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [286218488] [2021-03-11 14:17:35,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:17:35,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:17:35,774 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:17:35,774 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:17:35,775 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:17:35,775 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:17:35,779 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:17:35,779 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:17:35,786 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:17:35,787 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:17:35,798 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:17:35,798 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:17:35,813 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:17:35,814 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:17:35,834 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:17:35,834 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:17:35,859 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:17:35,860 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:17:35,893 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:17:35,894 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:17:35,941 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:17:35,942 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:17:35,993 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:17:35,994 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:17:36,039 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:17:36,039 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [286218488] [2021-03-11 14:17:36,040 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:17:36,040 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:17:36,040 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1269997916] [2021-03-11 14:17:36,040 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:17:36,040 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:17:36,040 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:17:36,040 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:17:36,041 INFO L87 Difference]: Start difference. First operand 3135 states and 15635 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:36,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:17:36,278 INFO L93 Difference]: Finished difference Result 6067 states and 26997 transitions. [2021-03-11 14:17:36,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:17:36,278 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:17:36,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:17:36,296 INFO L225 Difference]: With dead ends: 6067 [2021-03-11 14:17:36,297 INFO L226 Difference]: Without dead ends: 6037 [2021-03-11 14:17:36,297 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 324.3ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:17:36,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6037 states. [2021-03-11 14:17:36,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6037 to 3123. [2021-03-11 14:17:36,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3123 states, 3122 states have (on average 4.999039077514414) internal successors, (15607), 3122 states have internal predecessors, (15607), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:36,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3123 states to 3123 states and 15607 transitions. [2021-03-11 14:17:36,452 INFO L78 Accepts]: Start accepts. Automaton has 3123 states and 15607 transitions. Word has length 31 [2021-03-11 14:17:36,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:17:36,452 INFO L480 AbstractCegarLoop]: Abstraction has 3123 states and 15607 transitions. [2021-03-11 14:17:36,452 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:36,452 INFO L276 IsEmpty]: Start isEmpty. Operand 3123 states and 15607 transitions. [2021-03-11 14:17:36,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:17:36,457 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:17:36,457 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:17:36,457 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2021-03-11 14:17:36,457 INFO L428 AbstractCegarLoop]: === Iteration 40 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:17:36,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:17:36,457 INFO L82 PathProgramCache]: Analyzing trace with hash -1016448747, now seen corresponding path program 31 times [2021-03-11 14:17:36,457 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:17:36,457 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [645163681] [2021-03-11 14:17:36,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:17:36,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:17:36,480 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:17:36,480 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:17:36,481 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:17:36,481 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:17:36,485 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:17:36,486 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:17:36,493 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:17:36,494 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:17:36,506 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:17:36,506 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:17:36,524 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:17:36,524 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:17:36,548 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:17:36,549 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:17:36,579 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:17:36,580 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:17:36,640 INFO L142 QuantifierPusher]: treesize reduction 45, result has 59.1 percent of original size [2021-03-11 14:17:36,640 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:17:36,708 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:17:36,709 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:17:36,759 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:17:36,760 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:17:36,804 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:17:36,805 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [645163681] [2021-03-11 14:17:36,805 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:17:36,805 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:17:36,805 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1549030030] [2021-03-11 14:17:36,805 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:17:36,805 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:17:36,805 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:17:36,805 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:17:36,805 INFO L87 Difference]: Start difference. First operand 3123 states and 15607 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:36,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:17:36,980 INFO L93 Difference]: Finished difference Result 6082 states and 27040 transitions. [2021-03-11 14:17:36,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:17:36,980 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:17:36,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:17:36,994 INFO L225 Difference]: With dead ends: 6082 [2021-03-11 14:17:36,994 INFO L226 Difference]: Without dead ends: 6062 [2021-03-11 14:17:36,994 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 369.6ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:17:37,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6062 states. [2021-03-11 14:17:37,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6062 to 3137. [2021-03-11 14:17:37,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3137 states, 3136 states have (on average 4.989158163265306) internal successors, (15646), 3136 states have internal predecessors, (15646), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:37,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3137 states to 3137 states and 15646 transitions. [2021-03-11 14:17:37,151 INFO L78 Accepts]: Start accepts. Automaton has 3137 states and 15646 transitions. Word has length 31 [2021-03-11 14:17:37,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:17:37,151 INFO L480 AbstractCegarLoop]: Abstraction has 3137 states and 15646 transitions. [2021-03-11 14:17:37,151 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:37,151 INFO L276 IsEmpty]: Start isEmpty. Operand 3137 states and 15646 transitions. [2021-03-11 14:17:37,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:17:37,158 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:17:37,158 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:17:37,158 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2021-03-11 14:17:37,158 INFO L428 AbstractCegarLoop]: === Iteration 41 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:17:37,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:17:37,158 INFO L82 PathProgramCache]: Analyzing trace with hash -1861420199, now seen corresponding path program 32 times [2021-03-11 14:17:37,159 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:17:37,159 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1489268846] [2021-03-11 14:17:37,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:17:37,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:17:37,181 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:17:37,182 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:17:37,182 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:17:37,182 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:17:37,186 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:17:37,187 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:17:37,194 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:17:37,194 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:17:37,205 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:17:37,206 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:17:37,221 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:17:37,221 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:17:37,241 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:17:37,242 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:17:37,266 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:17:37,267 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:17:37,319 INFO L142 QuantifierPusher]: treesize reduction 45, result has 59.1 percent of original size [2021-03-11 14:17:37,321 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:17:37,374 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:17:37,374 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:17:37,411 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:17:37,411 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:17:37,446 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:17:37,446 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1489268846] [2021-03-11 14:17:37,446 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:17:37,447 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:17:37,447 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1463938911] [2021-03-11 14:17:37,447 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:17:37,447 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:17:37,447 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:17:37,447 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:17:37,447 INFO L87 Difference]: Start difference. First operand 3137 states and 15646 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:37,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:17:37,607 INFO L93 Difference]: Finished difference Result 6079 states and 27028 transitions. [2021-03-11 14:17:37,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:17:37,607 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:17:37,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:17:37,620 INFO L225 Difference]: With dead ends: 6079 [2021-03-11 14:17:37,620 INFO L226 Difference]: Without dead ends: 6056 [2021-03-11 14:17:37,621 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 301.2ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:17:37,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6056 states. [2021-03-11 14:17:37,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6056 to 3131. [2021-03-11 14:17:37,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3131 states, 3130 states have (on average 4.993290734824281) internal successors, (15629), 3130 states have internal predecessors, (15629), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:37,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3131 states to 3131 states and 15629 transitions. [2021-03-11 14:17:37,759 INFO L78 Accepts]: Start accepts. Automaton has 3131 states and 15629 transitions. Word has length 31 [2021-03-11 14:17:37,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:17:37,760 INFO L480 AbstractCegarLoop]: Abstraction has 3131 states and 15629 transitions. [2021-03-11 14:17:37,760 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:37,760 INFO L276 IsEmpty]: Start isEmpty. Operand 3131 states and 15629 transitions. [2021-03-11 14:17:37,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:17:37,765 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:17:37,765 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:17:37,765 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2021-03-11 14:17:37,765 INFO L428 AbstractCegarLoop]: === Iteration 42 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:17:37,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:17:37,765 INFO L82 PathProgramCache]: Analyzing trace with hash -2077226837, now seen corresponding path program 33 times [2021-03-11 14:17:37,765 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:17:37,765 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1327210261] [2021-03-11 14:17:37,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:17:37,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:17:37,786 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:17:37,786 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:17:37,786 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:17:37,786 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:17:37,790 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:17:37,790 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:17:37,797 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:17:37,798 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:17:37,812 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:17:37,812 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:17:37,827 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:17:37,828 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:17:37,848 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:17:37,849 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:17:37,878 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:17:37,879 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:17:37,934 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:17:37,935 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:17:37,975 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:17:37,976 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:17:38,022 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:17:38,023 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:17:38,065 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:17:38,065 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1327210261] [2021-03-11 14:17:38,065 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:17:38,065 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:17:38,065 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1077645989] [2021-03-11 14:17:38,066 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:17:38,066 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:17:38,066 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:17:38,066 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:17:38,066 INFO L87 Difference]: Start difference. First operand 3131 states and 15629 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:38,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:17:38,274 INFO L93 Difference]: Finished difference Result 6092 states and 27055 transitions. [2021-03-11 14:17:38,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:17:38,275 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:17:38,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:17:38,292 INFO L225 Difference]: With dead ends: 6092 [2021-03-11 14:17:38,292 INFO L226 Difference]: Without dead ends: 6072 [2021-03-11 14:17:38,293 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 336.8ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:17:38,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6072 states. [2021-03-11 14:17:38,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6072 to 3142. [2021-03-11 14:17:38,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3142 states, 3141 states have (on average 4.9821712830308815) internal successors, (15649), 3141 states have internal predecessors, (15649), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:38,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3142 states to 3142 states and 15649 transitions. [2021-03-11 14:17:38,464 INFO L78 Accepts]: Start accepts. Automaton has 3142 states and 15649 transitions. Word has length 31 [2021-03-11 14:17:38,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:17:38,464 INFO L480 AbstractCegarLoop]: Abstraction has 3142 states and 15649 transitions. [2021-03-11 14:17:38,464 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:38,465 INFO L276 IsEmpty]: Start isEmpty. Operand 3142 states and 15649 transitions. [2021-03-11 14:17:38,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:17:38,469 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:17:38,470 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:17:38,470 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2021-03-11 14:17:38,470 INFO L428 AbstractCegarLoop]: === Iteration 43 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:17:38,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:17:38,470 INFO L82 PathProgramCache]: Analyzing trace with hash -739659623, now seen corresponding path program 34 times [2021-03-11 14:17:38,470 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:17:38,470 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1445043932] [2021-03-11 14:17:38,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:17:38,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:17:38,487 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:17:38,488 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:17:38,488 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:17:38,488 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:17:38,492 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:17:38,492 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:17:38,499 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:17:38,499 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:17:38,510 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:17:38,511 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:17:38,527 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:17:38,527 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:17:38,550 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:17:38,551 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:17:38,575 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:17:38,575 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:17:38,617 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:17:38,617 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:17:38,648 INFO L142 QuantifierPusher]: treesize reduction 72, result has 49.7 percent of original size [2021-03-11 14:17:38,649 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-03-11 14:17:38,685 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:17:38,686 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:17:38,721 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:17:38,721 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1445043932] [2021-03-11 14:17:38,721 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:17:38,721 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:17:38,721 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1569262778] [2021-03-11 14:17:38,721 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:17:38,721 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:17:38,722 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:17:38,722 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:17:38,722 INFO L87 Difference]: Start difference. First operand 3142 states and 15649 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:38,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:17:38,909 INFO L93 Difference]: Finished difference Result 6094 states and 27049 transitions. [2021-03-11 14:17:38,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:17:38,910 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:17:38,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:17:38,923 INFO L225 Difference]: With dead ends: 6094 [2021-03-11 14:17:38,923 INFO L226 Difference]: Without dead ends: 6061 [2021-03-11 14:17:38,923 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 252.0ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:17:39,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6061 states. [2021-03-11 14:17:39,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6061 to 3131. [2021-03-11 14:17:39,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3131 states, 3130 states have (on average 4.99073482428115) internal successors, (15621), 3130 states have internal predecessors, (15621), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:39,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3131 states to 3131 states and 15621 transitions. [2021-03-11 14:17:39,079 INFO L78 Accepts]: Start accepts. Automaton has 3131 states and 15621 transitions. Word has length 31 [2021-03-11 14:17:39,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:17:39,079 INFO L480 AbstractCegarLoop]: Abstraction has 3131 states and 15621 transitions. [2021-03-11 14:17:39,080 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:39,080 INFO L276 IsEmpty]: Start isEmpty. Operand 3131 states and 15621 transitions. [2021-03-11 14:17:39,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:17:39,085 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:17:39,085 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:17:39,085 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2021-03-11 14:17:39,085 INFO L428 AbstractCegarLoop]: === Iteration 44 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:17:39,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:17:39,085 INFO L82 PathProgramCache]: Analyzing trace with hash 948457771, now seen corresponding path program 35 times [2021-03-11 14:17:39,086 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:17:39,086 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [372565212] [2021-03-11 14:17:39,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:17:39,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:17:39,107 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:17:39,107 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:17:39,107 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:17:39,108 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:17:39,112 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:17:39,112 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:17:39,119 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:17:39,120 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:17:39,131 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:17:39,131 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:17:39,147 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:17:39,148 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:17:39,169 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:17:39,169 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:17:39,196 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:17:39,197 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:17:39,256 INFO L142 QuantifierPusher]: treesize reduction 54, result has 55.4 percent of original size [2021-03-11 14:17:39,257 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-03-11 14:17:39,332 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:17:39,332 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:17:39,382 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:17:39,383 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:17:39,428 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:17:39,429 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [372565212] [2021-03-11 14:17:39,429 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:17:39,429 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:17:39,429 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1325957160] [2021-03-11 14:17:39,429 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:17:39,429 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:17:39,429 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:17:39,430 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:17:39,430 INFO L87 Difference]: Start difference. First operand 3131 states and 15621 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:39,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:17:39,671 INFO L93 Difference]: Finished difference Result 6082 states and 27025 transitions. [2021-03-11 14:17:39,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:17:39,671 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:17:39,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:17:39,685 INFO L225 Difference]: With dead ends: 6082 [2021-03-11 14:17:39,685 INFO L226 Difference]: Without dead ends: 6065 [2021-03-11 14:17:39,686 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 364.4ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:17:39,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6065 states. [2021-03-11 14:17:39,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6065 to 3138. [2021-03-11 14:17:39,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3138 states, 3137 states have (on average 4.983742429072362) internal successors, (15634), 3137 states have internal predecessors, (15634), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:39,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3138 states to 3138 states and 15634 transitions. [2021-03-11 14:17:39,841 INFO L78 Accepts]: Start accepts. Automaton has 3138 states and 15634 transitions. Word has length 31 [2021-03-11 14:17:39,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:17:39,841 INFO L480 AbstractCegarLoop]: Abstraction has 3138 states and 15634 transitions. [2021-03-11 14:17:39,842 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:39,842 INFO L276 IsEmpty]: Start isEmpty. Operand 3138 states and 15634 transitions. [2021-03-11 14:17:39,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:17:39,847 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:17:39,847 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:17:39,847 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2021-03-11 14:17:39,847 INFO L428 AbstractCegarLoop]: === Iteration 45 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:17:39,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:17:39,847 INFO L82 PathProgramCache]: Analyzing trace with hash -1163970859, now seen corresponding path program 36 times [2021-03-11 14:17:39,847 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:17:39,847 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2123225900] [2021-03-11 14:17:39,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:17:39,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:17:39,867 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:17:39,867 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:17:39,868 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:17:39,868 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:17:39,872 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:17:39,873 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:17:39,880 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:17:39,880 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:17:39,892 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:17:39,892 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:17:39,908 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:17:39,909 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:17:39,930 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:17:39,930 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:17:39,955 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:17:39,955 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:17:40,003 INFO L142 QuantifierPusher]: treesize reduction 54, result has 55.4 percent of original size [2021-03-11 14:17:40,003 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-03-11 14:17:40,060 INFO L142 QuantifierPusher]: treesize reduction 72, result has 49.7 percent of original size [2021-03-11 14:17:40,060 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-03-11 14:17:40,101 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:17:40,101 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:17:40,137 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:17:40,137 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2123225900] [2021-03-11 14:17:40,137 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:17:40,137 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:17:40,137 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [839263599] [2021-03-11 14:17:40,137 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:17:40,137 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:17:40,138 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:17:40,138 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:17:40,138 INFO L87 Difference]: Start difference. First operand 3138 states and 15634 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:40,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:17:40,277 INFO L93 Difference]: Finished difference Result 6087 states and 27028 transitions. [2021-03-11 14:17:40,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:17:40,277 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:17:40,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:17:40,291 INFO L225 Difference]: With dead ends: 6087 [2021-03-11 14:17:40,291 INFO L226 Difference]: Without dead ends: 6050 [2021-03-11 14:17:40,292 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 285.0ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:17:40,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6050 states. [2021-03-11 14:17:40,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6050 to 3123. [2021-03-11 14:17:40,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3123 states, 3122 states have (on average 4.996476617552851) internal successors, (15599), 3122 states have internal predecessors, (15599), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:40,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3123 states to 3123 states and 15599 transitions. [2021-03-11 14:17:40,447 INFO L78 Accepts]: Start accepts. Automaton has 3123 states and 15599 transitions. Word has length 31 [2021-03-11 14:17:40,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:17:40,447 INFO L480 AbstractCegarLoop]: Abstraction has 3123 states and 15599 transitions. [2021-03-11 14:17:40,447 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:40,447 INFO L276 IsEmpty]: Start isEmpty. Operand 3123 states and 15599 transitions. [2021-03-11 14:17:40,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:17:40,452 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:17:40,452 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:17:40,452 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2021-03-11 14:17:40,452 INFO L428 AbstractCegarLoop]: === Iteration 46 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:17:40,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:17:40,452 INFO L82 PathProgramCache]: Analyzing trace with hash -1709506411, now seen corresponding path program 37 times [2021-03-11 14:17:40,452 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:17:40,452 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [726619033] [2021-03-11 14:17:40,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:17:40,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:17:40,473 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:17:40,473 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:17:40,473 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:17:40,474 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:17:40,478 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:17:40,478 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:17:40,485 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:17:40,486 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:17:40,497 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:17:40,497 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:17:40,513 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:17:40,514 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:17:40,540 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:17:40,541 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:17:40,567 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:17:40,568 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:17:40,601 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:17:40,601 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:17:40,634 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:17:40,635 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:17:40,679 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:17:40,680 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:17:40,719 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:17:40,719 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [726619033] [2021-03-11 14:17:40,720 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:17:40,720 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:17:40,720 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [815548969] [2021-03-11 14:17:40,720 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:17:40,720 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:17:40,720 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:17:40,720 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:17:40,720 INFO L87 Difference]: Start difference. First operand 3123 states and 15599 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:40,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:17:40,946 INFO L93 Difference]: Finished difference Result 6088 states and 27049 transitions. [2021-03-11 14:17:40,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:17:40,946 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:17:40,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:17:40,961 INFO L225 Difference]: With dead ends: 6088 [2021-03-11 14:17:40,961 INFO L226 Difference]: Without dead ends: 6068 [2021-03-11 14:17:40,961 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 290.9ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:17:41,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6068 states. [2021-03-11 14:17:41,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6068 to 3139. [2021-03-11 14:17:41,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3139 states, 3138 states have (on average 4.98534098151689) internal successors, (15644), 3138 states have internal predecessors, (15644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:41,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3139 states to 3139 states and 15644 transitions. [2021-03-11 14:17:41,124 INFO L78 Accepts]: Start accepts. Automaton has 3139 states and 15644 transitions. Word has length 31 [2021-03-11 14:17:41,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:17:41,124 INFO L480 AbstractCegarLoop]: Abstraction has 3139 states and 15644 transitions. [2021-03-11 14:17:41,124 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:41,124 INFO L276 IsEmpty]: Start isEmpty. Operand 3139 states and 15644 transitions. [2021-03-11 14:17:41,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:17:41,129 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:17:41,129 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:17:41,129 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2021-03-11 14:17:41,129 INFO L428 AbstractCegarLoop]: === Iteration 47 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:17:41,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:17:41,130 INFO L82 PathProgramCache]: Analyzing trace with hash 895517981, now seen corresponding path program 38 times [2021-03-11 14:17:41,130 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:17:41,130 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1058067428] [2021-03-11 14:17:41,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:17:41,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:17:41,150 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:17:41,150 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:17:41,151 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:17:41,151 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:17:41,155 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:17:41,155 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:17:41,163 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:17:41,164 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:17:41,175 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:17:41,176 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:17:41,194 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:17:41,194 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:17:41,217 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:17:41,218 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:17:41,243 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:17:41,244 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:17:41,272 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:17:41,273 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:17:41,307 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:17:41,307 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:17:41,360 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:17:41,361 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:17:41,399 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:17:41,400 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1058067428] [2021-03-11 14:17:41,400 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:17:41,400 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:17:41,400 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [456542179] [2021-03-11 14:17:41,400 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:17:41,400 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:17:41,400 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:17:41,400 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:17:41,400 INFO L87 Difference]: Start difference. First operand 3139 states and 15644 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:41,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:17:41,561 INFO L93 Difference]: Finished difference Result 6086 states and 27038 transitions. [2021-03-11 14:17:41,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:17:41,562 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:17:41,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:17:41,576 INFO L225 Difference]: With dead ends: 6086 [2021-03-11 14:17:41,576 INFO L226 Difference]: Without dead ends: 6061 [2021-03-11 14:17:41,577 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 277.2ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:17:41,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6061 states. [2021-03-11 14:17:41,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6061 to 3132. [2021-03-11 14:17:41,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3132 states, 3131 states have (on average 4.99009900990099) internal successors, (15624), 3131 states have internal predecessors, (15624), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:41,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3132 states to 3132 states and 15624 transitions. [2021-03-11 14:17:41,739 INFO L78 Accepts]: Start accepts. Automaton has 3132 states and 15624 transitions. Word has length 31 [2021-03-11 14:17:41,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:17:41,740 INFO L480 AbstractCegarLoop]: Abstraction has 3132 states and 15624 transitions. [2021-03-11 14:17:41,740 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:41,740 INFO L276 IsEmpty]: Start isEmpty. Operand 3132 states and 15624 transitions. [2021-03-11 14:17:41,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:17:41,745 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:17:41,745 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:17:41,745 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2021-03-11 14:17:41,745 INFO L428 AbstractCegarLoop]: === Iteration 48 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:17:41,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:17:41,746 INFO L82 PathProgramCache]: Analyzing trace with hash 1948994031, now seen corresponding path program 39 times [2021-03-11 14:17:41,746 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:17:41,746 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [445041995] [2021-03-11 14:17:41,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:17:41,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:17:41,767 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:17:41,767 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:17:41,768 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:17:41,768 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:17:41,772 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:17:41,773 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:17:41,781 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:17:41,781 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:17:41,793 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:17:41,794 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:17:41,810 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:17:41,811 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:17:41,833 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:17:41,834 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:17:41,861 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:17:41,862 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:17:41,898 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:17:41,899 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:17:41,945 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:17:41,946 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:17:41,996 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:17:41,997 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:17:42,042 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:17:42,042 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [445041995] [2021-03-11 14:17:42,042 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:17:42,042 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:17:42,042 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1362053854] [2021-03-11 14:17:42,043 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:17:42,043 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:17:42,043 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:17:42,043 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:17:42,043 INFO L87 Difference]: Start difference. First operand 3132 states and 15624 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:42,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:17:42,252 INFO L93 Difference]: Finished difference Result 6096 states and 27058 transitions. [2021-03-11 14:17:42,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:17:42,253 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:17:42,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:17:42,271 INFO L225 Difference]: With dead ends: 6096 [2021-03-11 14:17:42,272 INFO L226 Difference]: Without dead ends: 6076 [2021-03-11 14:17:42,272 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 339.5ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:17:42,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6076 states. [2021-03-11 14:17:42,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6076 to 3143. [2021-03-11 14:17:42,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3143 states, 3142 states have (on average 4.978994271164863) internal successors, (15644), 3142 states have internal predecessors, (15644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:42,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3143 states to 3143 states and 15644 transitions. [2021-03-11 14:17:42,465 INFO L78 Accepts]: Start accepts. Automaton has 3143 states and 15644 transitions. Word has length 31 [2021-03-11 14:17:42,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:17:42,465 INFO L480 AbstractCegarLoop]: Abstraction has 3143 states and 15644 transitions. [2021-03-11 14:17:42,465 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:42,465 INFO L276 IsEmpty]: Start isEmpty. Operand 3143 states and 15644 transitions. [2021-03-11 14:17:42,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:17:42,470 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:17:42,470 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:17:42,470 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2021-03-11 14:17:42,471 INFO L428 AbstractCegarLoop]: === Iteration 49 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:17:42,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:17:42,471 INFO L82 PathProgramCache]: Analyzing trace with hash -1008406051, now seen corresponding path program 40 times [2021-03-11 14:17:42,471 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:17:42,471 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1975025768] [2021-03-11 14:17:42,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:17:42,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:17:42,494 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:17:42,494 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:17:42,494 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:17:42,494 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:17:42,498 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:17:42,498 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:17:42,504 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:17:42,505 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:17:42,514 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:17:42,515 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:17:42,529 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:17:42,529 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:17:42,547 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:17:42,547 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:17:42,574 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:17:42,574 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:17:42,601 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:17:42,602 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:17:42,633 INFO L142 QuantifierPusher]: treesize reduction 72, result has 49.7 percent of original size [2021-03-11 14:17:42,633 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-03-11 14:17:42,683 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:17:42,684 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:17:42,725 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:17:42,726 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1975025768] [2021-03-11 14:17:42,726 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:17:42,726 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:17:42,726 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [570603581] [2021-03-11 14:17:42,726 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:17:42,726 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:17:42,726 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:17:42,726 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:17:42,726 INFO L87 Difference]: Start difference. First operand 3143 states and 15644 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:42,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:17:42,852 INFO L93 Difference]: Finished difference Result 6098 states and 27052 transitions. [2021-03-11 14:17:42,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:17:42,853 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:17:42,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:17:42,866 INFO L225 Difference]: With dead ends: 6098 [2021-03-11 14:17:42,866 INFO L226 Difference]: Without dead ends: 6065 [2021-03-11 14:17:42,866 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 239.7ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:17:42,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6065 states. [2021-03-11 14:17:42,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6065 to 3132. [2021-03-11 14:17:42,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3132 states, 3131 states have (on average 4.987224528904504) internal successors, (15615), 3131 states have internal predecessors, (15615), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:43,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3132 states to 3132 states and 15615 transitions. [2021-03-11 14:17:43,005 INFO L78 Accepts]: Start accepts. Automaton has 3132 states and 15615 transitions. Word has length 31 [2021-03-11 14:17:43,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:17:43,005 INFO L480 AbstractCegarLoop]: Abstraction has 3132 states and 15615 transitions. [2021-03-11 14:17:43,005 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:43,005 INFO L276 IsEmpty]: Start isEmpty. Operand 3132 states and 15615 transitions. [2021-03-11 14:17:43,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:17:43,010 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:17:43,010 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:17:43,011 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2021-03-11 14:17:43,011 INFO L428 AbstractCegarLoop]: === Iteration 50 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:17:43,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:17:43,011 INFO L82 PathProgramCache]: Analyzing trace with hash -589571345, now seen corresponding path program 41 times [2021-03-11 14:17:43,011 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:17:43,011 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1870747924] [2021-03-11 14:17:43,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:17:43,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:17:43,030 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:17:43,030 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:17:43,030 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:17:43,030 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:17:43,034 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:17:43,034 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:17:43,041 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:17:43,041 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:17:43,050 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:17:43,050 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:17:43,075 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:17:43,076 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:17:43,097 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:17:43,098 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:17:43,124 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:17:43,124 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:17:43,151 INFO L142 QuantifierPusher]: treesize reduction 54, result has 55.4 percent of original size [2021-03-11 14:17:43,152 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-03-11 14:17:43,205 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:17:43,206 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:17:43,243 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:17:43,244 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:17:43,277 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:17:43,277 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1870747924] [2021-03-11 14:17:43,277 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:17:43,277 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:17:43,277 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [372280999] [2021-03-11 14:17:43,277 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:17:43,278 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:17:43,278 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:17:43,278 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:17:43,278 INFO L87 Difference]: Start difference. First operand 3132 states and 15615 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:43,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:17:43,429 INFO L93 Difference]: Finished difference Result 6089 states and 27034 transitions. [2021-03-11 14:17:43,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:17:43,429 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:17:43,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:17:43,443 INFO L225 Difference]: With dead ends: 6089 [2021-03-11 14:17:43,443 INFO L226 Difference]: Without dead ends: 6071 [2021-03-11 14:17:43,444 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 276.6ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:17:43,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6071 states. [2021-03-11 14:17:43,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6071 to 3140. [2021-03-11 14:17:43,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3140 states, 3139 states have (on average 4.9792927683975785) internal successors, (15630), 3139 states have internal predecessors, (15630), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:43,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3140 states to 3140 states and 15630 transitions. [2021-03-11 14:17:43,596 INFO L78 Accepts]: Start accepts. Automaton has 3140 states and 15630 transitions. Word has length 31 [2021-03-11 14:17:43,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:17:43,596 INFO L480 AbstractCegarLoop]: Abstraction has 3140 states and 15630 transitions. [2021-03-11 14:17:43,597 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:43,597 INFO L276 IsEmpty]: Start isEmpty. Operand 3140 states and 15630 transitions. [2021-03-11 14:17:43,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:17:43,601 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:17:43,601 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:17:43,601 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2021-03-11 14:17:43,602 INFO L428 AbstractCegarLoop]: === Iteration 51 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:17:43,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:17:43,602 INFO L82 PathProgramCache]: Analyzing trace with hash -1857028523, now seen corresponding path program 42 times [2021-03-11 14:17:43,602 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:17:43,602 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [389280643] [2021-03-11 14:17:43,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:17:43,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:17:43,623 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:17:43,624 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:17:43,624 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:17:43,624 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:17:43,628 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:17:43,629 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:17:43,636 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:17:43,637 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:17:43,648 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:17:43,648 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:17:43,665 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:17:43,665 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:17:43,686 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:17:43,686 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:17:43,712 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:17:43,713 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:17:43,748 INFO L142 QuantifierPusher]: treesize reduction 54, result has 55.4 percent of original size [2021-03-11 14:17:43,749 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-03-11 14:17:43,824 INFO L142 QuantifierPusher]: treesize reduction 72, result has 49.7 percent of original size [2021-03-11 14:17:43,824 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-03-11 14:17:43,875 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:17:43,876 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:17:43,921 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:17:43,921 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [389280643] [2021-03-11 14:17:43,921 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:17:43,921 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:17:43,921 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619199835] [2021-03-11 14:17:43,922 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:17:43,922 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:17:43,922 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:17:43,922 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:17:43,922 INFO L87 Difference]: Start difference. First operand 3140 states and 15630 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:44,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:17:44,097 INFO L93 Difference]: Finished difference Result 6093 states and 27034 transitions. [2021-03-11 14:17:44,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:17:44,097 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:17:44,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:17:44,111 INFO L225 Difference]: With dead ends: 6093 [2021-03-11 14:17:44,112 INFO L226 Difference]: Without dead ends: 6054 [2021-03-11 14:17:44,112 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 320.2ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:17:44,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6054 states. [2021-03-11 14:17:44,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6054 to 3123. [2021-03-11 14:17:44,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3123 states, 3122 states have (on average 4.993914157591288) internal successors, (15591), 3122 states have internal predecessors, (15591), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:44,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3123 states to 3123 states and 15591 transitions. [2021-03-11 14:17:44,269 INFO L78 Accepts]: Start accepts. Automaton has 3123 states and 15591 transitions. Word has length 31 [2021-03-11 14:17:44,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:17:44,269 INFO L480 AbstractCegarLoop]: Abstraction has 3123 states and 15591 transitions. [2021-03-11 14:17:44,269 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:44,269 INFO L276 IsEmpty]: Start isEmpty. Operand 3123 states and 15591 transitions. [2021-03-11 14:17:44,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:17:44,274 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:17:44,274 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:17:44,275 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2021-03-11 14:17:44,275 INFO L428 AbstractCegarLoop]: === Iteration 52 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:17:44,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:17:44,275 INFO L82 PathProgramCache]: Analyzing trace with hash 1047431769, now seen corresponding path program 43 times [2021-03-11 14:17:44,275 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:17:44,275 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2053800129] [2021-03-11 14:17:44,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:17:44,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:17:44,293 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:17:44,293 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:17:44,293 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:17:44,294 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:17:44,297 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:17:44,298 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:17:44,304 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:17:44,305 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:17:44,315 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:17:44,315 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:17:44,330 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:17:44,330 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:17:44,348 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:17:44,349 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:17:44,371 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:17:44,372 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:17:44,418 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:17:44,419 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:17:44,452 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:17:44,452 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:17:44,503 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:17:44,504 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:17:44,540 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:17:44,541 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2053800129] [2021-03-11 14:17:44,541 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:17:44,541 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:17:44,541 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1382528202] [2021-03-11 14:17:44,541 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:17:44,541 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:17:44,541 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:17:44,541 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:17:44,542 INFO L87 Difference]: Start difference. First operand 3123 states and 15591 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:44,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:17:44,713 INFO L93 Difference]: Finished difference Result 6071 states and 27001 transitions. [2021-03-11 14:17:44,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:17:44,714 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:17:44,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:17:44,728 INFO L225 Difference]: With dead ends: 6071 [2021-03-11 14:17:44,728 INFO L226 Difference]: Without dead ends: 6054 [2021-03-11 14:17:44,728 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 280.8ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:17:44,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6054 states. [2021-03-11 14:17:44,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6054 to 3136. [2021-03-11 14:17:44,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3136 states, 3135 states have (on average 4.985007974481658) internal successors, (15628), 3135 states have internal predecessors, (15628), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:44,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3136 states to 3136 states and 15628 transitions. [2021-03-11 14:17:44,885 INFO L78 Accepts]: Start accepts. Automaton has 3136 states and 15628 transitions. Word has length 31 [2021-03-11 14:17:44,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:17:44,885 INFO L480 AbstractCegarLoop]: Abstraction has 3136 states and 15628 transitions. [2021-03-11 14:17:44,885 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:44,885 INFO L276 IsEmpty]: Start isEmpty. Operand 3136 states and 15628 transitions. [2021-03-11 14:17:44,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:17:44,890 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:17:44,890 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:17:44,890 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2021-03-11 14:17:44,890 INFO L428 AbstractCegarLoop]: === Iteration 53 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:17:44,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:17:44,890 INFO L82 PathProgramCache]: Analyzing trace with hash 202460317, now seen corresponding path program 44 times [2021-03-11 14:17:44,891 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:17:44,891 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [303724251] [2021-03-11 14:17:44,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:17:44,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:17:44,912 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:17:44,913 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:17:44,913 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:17:44,913 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:17:44,918 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:17:44,918 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:17:44,925 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:17:44,926 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:17:44,937 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:17:44,938 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:17:44,954 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:17:44,955 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:17:44,976 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:17:44,977 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:17:45,004 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:17:45,004 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:17:45,065 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:17:45,065 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:17:45,112 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:17:45,113 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:17:45,175 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:17:45,176 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:17:45,223 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:17:45,224 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [303724251] [2021-03-11 14:17:45,224 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:17:45,224 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:17:45,224 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1678798199] [2021-03-11 14:17:45,224 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:17:45,224 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:17:45,225 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:17:45,225 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:17:45,225 INFO L87 Difference]: Start difference. First operand 3136 states and 15628 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:45,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:17:45,467 INFO L93 Difference]: Finished difference Result 6072 states and 26997 transitions. [2021-03-11 14:17:45,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:17:45,467 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:17:45,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:17:45,481 INFO L225 Difference]: With dead ends: 6072 [2021-03-11 14:17:45,481 INFO L226 Difference]: Without dead ends: 6048 [2021-03-11 14:17:45,481 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 367.4ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:17:45,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6048 states. [2021-03-11 14:17:45,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6048 to 3130. [2021-03-11 14:17:45,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3130 states, 3129 states have (on average 4.989133908596996) internal successors, (15611), 3129 states have internal predecessors, (15611), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:45,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3130 states to 3130 states and 15611 transitions. [2021-03-11 14:17:45,637 INFO L78 Accepts]: Start accepts. Automaton has 3130 states and 15611 transitions. Word has length 31 [2021-03-11 14:17:45,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:17:45,637 INFO L480 AbstractCegarLoop]: Abstraction has 3130 states and 15611 transitions. [2021-03-11 14:17:45,637 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:45,637 INFO L276 IsEmpty]: Start isEmpty. Operand 3130 states and 15611 transitions. [2021-03-11 14:17:45,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:17:45,642 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:17:45,642 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:17:45,642 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2021-03-11 14:17:45,642 INFO L428 AbstractCegarLoop]: === Iteration 54 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:17:45,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:17:45,642 INFO L82 PathProgramCache]: Analyzing trace with hash 410964915, now seen corresponding path program 45 times [2021-03-11 14:17:45,643 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:17:45,643 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2122082473] [2021-03-11 14:17:45,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:17:45,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:17:45,664 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:17:45,664 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:17:45,665 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:17:45,665 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:17:45,669 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:17:45,669 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:17:45,677 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:17:45,677 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:17:45,689 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:17:45,690 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:17:45,707 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:17:45,707 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:17:45,729 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:17:45,730 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:17:45,757 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:17:45,758 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:17:45,826 INFO L142 QuantifierPusher]: treesize reduction 54, result has 55.4 percent of original size [2021-03-11 14:17:45,826 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-03-11 14:17:45,902 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:17:45,903 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:17:45,944 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:17:45,945 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:17:45,981 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:17:45,981 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2122082473] [2021-03-11 14:17:45,981 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:17:45,981 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:17:45,982 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [141997895] [2021-03-11 14:17:45,982 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:17:45,982 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:17:45,982 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:17:45,982 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:17:45,982 INFO L87 Difference]: Start difference. First operand 3130 states and 15611 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:46,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:17:46,163 INFO L93 Difference]: Finished difference Result 6076 states and 27004 transitions. [2021-03-11 14:17:46,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:17:46,163 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:17:46,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:17:46,177 INFO L225 Difference]: With dead ends: 6076 [2021-03-11 14:17:46,177 INFO L226 Difference]: Without dead ends: 6059 [2021-03-11 14:17:46,177 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 359.1ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:17:46,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6059 states. [2021-03-11 14:17:46,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6059 to 3137. [2021-03-11 14:17:46,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3137 states, 3136 states have (on average 4.982142857142857) internal successors, (15624), 3136 states have internal predecessors, (15624), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:46,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3137 states to 3137 states and 15624 transitions. [2021-03-11 14:17:46,332 INFO L78 Accepts]: Start accepts. Automaton has 3137 states and 15624 transitions. Word has length 31 [2021-03-11 14:17:46,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:17:46,332 INFO L480 AbstractCegarLoop]: Abstraction has 3137 states and 15624 transitions. [2021-03-11 14:17:46,332 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:46,332 INFO L276 IsEmpty]: Start isEmpty. Operand 3137 states and 15624 transitions. [2021-03-11 14:17:46,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:17:46,337 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:17:46,337 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:17:46,337 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2021-03-11 14:17:46,337 INFO L428 AbstractCegarLoop]: === Iteration 55 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:17:46,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:17:46,338 INFO L82 PathProgramCache]: Analyzing trace with hash -1701463715, now seen corresponding path program 46 times [2021-03-11 14:17:46,338 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:17:46,338 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1445767726] [2021-03-11 14:17:46,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:17:46,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:17:46,415 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:17:46,415 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:17:46,416 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:17:46,416 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:17:46,420 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:17:46,420 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:17:46,428 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:17:46,428 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:17:46,438 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:17:46,439 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:17:46,453 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:17:46,454 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:17:46,470 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:17:46,470 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:17:46,491 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:17:46,491 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:17:46,535 INFO L142 QuantifierPusher]: treesize reduction 54, result has 55.4 percent of original size [2021-03-11 14:17:46,536 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-03-11 14:17:46,588 INFO L142 QuantifierPusher]: treesize reduction 72, result has 49.7 percent of original size [2021-03-11 14:17:46,588 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-03-11 14:17:46,625 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:17:46,626 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:17:46,659 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:17:46,659 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1445767726] [2021-03-11 14:17:46,659 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:17:46,659 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:17:46,659 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105758357] [2021-03-11 14:17:46,659 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:17:46,659 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:17:46,660 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:17:46,660 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:17:46,660 INFO L87 Difference]: Start difference. First operand 3137 states and 15624 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:46,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:17:46,788 INFO L93 Difference]: Finished difference Result 6081 states and 27007 transitions. [2021-03-11 14:17:46,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:17:46,788 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:17:46,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:17:46,801 INFO L225 Difference]: With dead ends: 6081 [2021-03-11 14:17:46,801 INFO L226 Difference]: Without dead ends: 6052 [2021-03-11 14:17:46,801 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 260.2ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:17:46,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6052 states. [2021-03-11 14:17:46,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6052 to 3130. [2021-03-11 14:17:46,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3130 states, 3129 states have (on average 4.986896772131671) internal successors, (15604), 3129 states have internal predecessors, (15604), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:46,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3130 states to 3130 states and 15604 transitions. [2021-03-11 14:17:46,940 INFO L78 Accepts]: Start accepts. Automaton has 3130 states and 15604 transitions. Word has length 31 [2021-03-11 14:17:46,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:17:46,940 INFO L480 AbstractCegarLoop]: Abstraction has 3130 states and 15604 transitions. [2021-03-11 14:17:46,940 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:46,940 INFO L276 IsEmpty]: Start isEmpty. Operand 3130 states and 15604 transitions. [2021-03-11 14:17:46,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:17:46,947 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:17:46,947 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:17:46,947 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2021-03-11 14:17:46,947 INFO L428 AbstractCegarLoop]: === Iteration 56 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:17:46,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:17:46,947 INFO L82 PathProgramCache]: Analyzing trace with hash -858317773, now seen corresponding path program 47 times [2021-03-11 14:17:46,947 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:17:46,948 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [663217091] [2021-03-11 14:17:46,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:17:46,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:17:46,966 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:17:46,966 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:17:46,967 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:17:46,967 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:17:46,971 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:17:46,971 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:17:46,978 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:17:46,978 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:17:46,988 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:17:46,989 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:17:47,004 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:17:47,004 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:17:47,021 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:17:47,021 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:17:47,043 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:17:47,043 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:17:47,087 INFO L142 QuantifierPusher]: treesize reduction 54, result has 55.4 percent of original size [2021-03-11 14:17:47,087 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-03-11 14:17:47,141 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:17:47,142 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:17:47,180 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:17:47,181 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:17:47,215 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:17:47,215 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [663217091] [2021-03-11 14:17:47,215 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:17:47,215 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:17:47,215 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [376397833] [2021-03-11 14:17:47,215 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:17:47,215 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:17:47,216 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:17:47,216 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:17:47,216 INFO L87 Difference]: Start difference. First operand 3130 states and 15604 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:47,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:17:47,377 INFO L93 Difference]: Finished difference Result 6079 states and 27004 transitions. [2021-03-11 14:17:47,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:17:47,377 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:17:47,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:17:47,390 INFO L225 Difference]: With dead ends: 6079 [2021-03-11 14:17:47,391 INFO L226 Difference]: Without dead ends: 6061 [2021-03-11 14:17:47,391 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 288.9ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:17:47,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6061 states. [2021-03-11 14:17:47,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6061 to 3138. [2021-03-11 14:17:47,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3138 states, 3137 states have (on average 4.9789607905642335) internal successors, (15619), 3137 states have internal predecessors, (15619), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:47,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3138 states to 3138 states and 15619 transitions. [2021-03-11 14:17:47,529 INFO L78 Accepts]: Start accepts. Automaton has 3138 states and 15619 transitions. Word has length 31 [2021-03-11 14:17:47,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:17:47,529 INFO L480 AbstractCegarLoop]: Abstraction has 3138 states and 15619 transitions. [2021-03-11 14:17:47,529 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:47,529 INFO L276 IsEmpty]: Start isEmpty. Operand 3138 states and 15619 transitions. [2021-03-11 14:17:47,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:17:47,534 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:17:47,534 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:17:47,534 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2021-03-11 14:17:47,534 INFO L428 AbstractCegarLoop]: === Iteration 57 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:17:47,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:17:47,534 INFO L82 PathProgramCache]: Analyzing trace with hash -2125774951, now seen corresponding path program 48 times [2021-03-11 14:17:47,534 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:17:47,534 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1796611911] [2021-03-11 14:17:47,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:17:47,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:17:47,555 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:17:47,555 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:17:47,556 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:17:47,556 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:17:47,560 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:17:47,560 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:17:47,566 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:17:47,567 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:17:47,577 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:17:47,577 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:17:47,591 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:17:47,591 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:17:47,608 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:17:47,608 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:17:47,629 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:17:47,629 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:17:47,672 INFO L142 QuantifierPusher]: treesize reduction 54, result has 55.4 percent of original size [2021-03-11 14:17:47,673 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-03-11 14:17:47,725 INFO L142 QuantifierPusher]: treesize reduction 72, result has 49.7 percent of original size [2021-03-11 14:17:47,725 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-03-11 14:17:47,762 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:17:47,762 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:17:47,795 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:17:47,796 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1796611911] [2021-03-11 14:17:47,796 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:17:47,796 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:17:47,796 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1155305509] [2021-03-11 14:17:47,796 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:17:47,796 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:17:47,796 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:17:47,796 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:17:47,796 INFO L87 Difference]: Start difference. First operand 3138 states and 15619 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:47,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:17:47,938 INFO L93 Difference]: Finished difference Result 6083 states and 27004 transitions. [2021-03-11 14:17:47,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:17:47,938 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:17:47,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:17:47,951 INFO L225 Difference]: With dead ends: 6083 [2021-03-11 14:17:47,952 INFO L226 Difference]: Without dead ends: 6038 [2021-03-11 14:17:47,952 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 258.0ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:17:48,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6038 states. [2021-03-11 14:17:48,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6038 to 3115. [2021-03-11 14:17:48,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3115 states, 3114 states have (on average 4.999678869621066) internal successors, (15569), 3114 states have internal predecessors, (15569), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:48,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3115 states to 3115 states and 15569 transitions. [2021-03-11 14:17:48,088 INFO L78 Accepts]: Start accepts. Automaton has 3115 states and 15569 transitions. Word has length 31 [2021-03-11 14:17:48,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:17:48,088 INFO L480 AbstractCegarLoop]: Abstraction has 3115 states and 15569 transitions. [2021-03-11 14:17:48,088 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:48,088 INFO L276 IsEmpty]: Start isEmpty. Operand 3115 states and 15569 transitions. [2021-03-11 14:17:48,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:17:48,092 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:17:48,092 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:17:48,093 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2021-03-11 14:17:48,093 INFO L428 AbstractCegarLoop]: === Iteration 58 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:17:48,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:17:48,093 INFO L82 PathProgramCache]: Analyzing trace with hash 1414918993, now seen corresponding path program 49 times [2021-03-11 14:17:48,093 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:17:48,093 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1059410526] [2021-03-11 14:17:48,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:17:48,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:17:48,111 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:17:48,111 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:17:48,112 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:17:48,112 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:17:48,116 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:17:48,116 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:17:48,122 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:17:48,122 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:17:48,131 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:17:48,132 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:17:48,145 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:17:48,145 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:17:48,161 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:17:48,162 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:17:48,182 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:17:48,182 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:17:48,210 INFO L142 QuantifierPusher]: treesize reduction 45, result has 59.1 percent of original size [2021-03-11 14:17:48,211 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:17:48,260 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:17:48,260 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:17:48,296 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:17:48,297 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:17:48,330 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:17:48,330 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1059410526] [2021-03-11 14:17:48,330 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:17:48,330 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:17:48,330 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [915822544] [2021-03-11 14:17:48,330 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:17:48,330 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:17:48,331 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:17:48,331 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:17:48,331 INFO L87 Difference]: Start difference. First operand 3115 states and 15569 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:48,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:17:48,504 INFO L93 Difference]: Finished difference Result 6056 states and 26980 transitions. [2021-03-11 14:17:48,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:17:48,505 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:17:48,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:17:48,517 INFO L225 Difference]: With dead ends: 6056 [2021-03-11 14:17:48,518 INFO L226 Difference]: Without dead ends: 6036 [2021-03-11 14:17:48,518 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 266.2ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:17:48,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6036 states. [2021-03-11 14:17:48,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6036 to 3133. [2021-03-11 14:17:48,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3133 states, 3132 states have (on average 4.991060025542784) internal successors, (15632), 3132 states have internal predecessors, (15632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:48,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3133 states to 3133 states and 15632 transitions. [2021-03-11 14:17:48,655 INFO L78 Accepts]: Start accepts. Automaton has 3133 states and 15632 transitions. Word has length 31 [2021-03-11 14:17:48,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:17:48,655 INFO L480 AbstractCegarLoop]: Abstraction has 3133 states and 15632 transitions. [2021-03-11 14:17:48,655 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:48,655 INFO L276 IsEmpty]: Start isEmpty. Operand 3133 states and 15632 transitions. [2021-03-11 14:17:48,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:17:48,660 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:17:48,660 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:17:48,660 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2021-03-11 14:17:48,660 INFO L428 AbstractCegarLoop]: === Iteration 59 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:17:48,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:17:48,661 INFO L82 PathProgramCache]: Analyzing trace with hash 569947541, now seen corresponding path program 50 times [2021-03-11 14:17:48,661 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:17:48,661 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [797339154] [2021-03-11 14:17:48,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:17:48,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:17:48,678 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:17:48,678 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:17:48,678 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:17:48,679 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:17:48,682 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:17:48,682 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:17:48,688 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:17:48,689 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:17:48,698 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:17:48,699 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:17:48,711 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:17:48,712 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:17:48,733 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:17:48,734 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:17:48,754 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:17:48,754 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:17:48,779 INFO L142 QuantifierPusher]: treesize reduction 45, result has 59.1 percent of original size [2021-03-11 14:17:48,779 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:17:48,828 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:17:48,829 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:17:48,865 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:17:48,866 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:17:48,899 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:17:48,899 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [797339154] [2021-03-11 14:17:48,899 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:17:48,899 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:17:48,899 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1582047541] [2021-03-11 14:17:48,899 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:17:48,899 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:17:48,899 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:17:48,899 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:17:48,900 INFO L87 Difference]: Start difference. First operand 3133 states and 15632 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:49,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:17:49,069 INFO L93 Difference]: Finished difference Result 6053 states and 26968 transitions. [2021-03-11 14:17:49,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:17:49,069 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:17:49,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:17:49,082 INFO L225 Difference]: With dead ends: 6053 [2021-03-11 14:17:49,082 INFO L226 Difference]: Without dead ends: 6030 [2021-03-11 14:17:49,082 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 259.0ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:17:49,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6030 states. [2021-03-11 14:17:49,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6030 to 3127. [2021-03-11 14:17:49,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3127 states, 3126 states have (on average 4.995201535508637) internal successors, (15615), 3126 states have internal predecessors, (15615), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:49,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3127 states to 3127 states and 15615 transitions. [2021-03-11 14:17:49,217 INFO L78 Accepts]: Start accepts. Automaton has 3127 states and 15615 transitions. Word has length 31 [2021-03-11 14:17:49,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:17:49,217 INFO L480 AbstractCegarLoop]: Abstraction has 3127 states and 15615 transitions. [2021-03-11 14:17:49,217 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:49,217 INFO L276 IsEmpty]: Start isEmpty. Operand 3127 states and 15615 transitions. [2021-03-11 14:17:49,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:17:49,222 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:17:49,222 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:17:49,222 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2021-03-11 14:17:49,222 INFO L428 AbstractCegarLoop]: === Iteration 60 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:17:49,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:17:49,222 INFO L82 PathProgramCache]: Analyzing trace with hash 990607757, now seen corresponding path program 51 times [2021-03-11 14:17:49,222 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:17:49,222 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2062195674] [2021-03-11 14:17:49,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:17:49,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:17:49,235 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:17:49,235 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:17:49,236 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:17:49,236 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:17:49,239 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:17:49,239 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:17:49,245 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:17:49,247 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:17:49,257 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:17:49,257 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:17:49,270 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:17:49,270 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:17:49,287 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:17:49,287 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:17:49,310 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:17:49,311 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:17:49,336 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:17:49,336 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:17:49,366 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:17:49,366 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:17:49,402 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:17:49,403 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:17:49,436 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:17:49,436 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2062195674] [2021-03-11 14:17:49,436 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:17:49,436 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:17:49,436 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87704649] [2021-03-11 14:17:49,436 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:17:49,436 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:17:49,436 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:17:49,436 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:17:49,436 INFO L87 Difference]: Start difference. First operand 3127 states and 15615 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:49,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:17:49,624 INFO L93 Difference]: Finished difference Result 6058 states and 26979 transitions. [2021-03-11 14:17:49,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:17:49,624 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:17:49,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:17:49,637 INFO L225 Difference]: With dead ends: 6058 [2021-03-11 14:17:49,637 INFO L226 Difference]: Without dead ends: 6038 [2021-03-11 14:17:49,637 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 248.6ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:17:49,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6038 states. [2021-03-11 14:17:49,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6038 to 3134. [2021-03-11 14:17:49,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3134 states, 3133 states have (on average 4.988190233003511) internal successors, (15628), 3133 states have internal predecessors, (15628), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:49,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3134 states to 3134 states and 15628 transitions. [2021-03-11 14:17:49,774 INFO L78 Accepts]: Start accepts. Automaton has 3134 states and 15628 transitions. Word has length 31 [2021-03-11 14:17:49,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:17:49,774 INFO L480 AbstractCegarLoop]: Abstraction has 3134 states and 15628 transitions. [2021-03-11 14:17:49,774 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:49,774 INFO L276 IsEmpty]: Start isEmpty. Operand 3134 states and 15628 transitions. [2021-03-11 14:17:49,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:17:49,778 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:17:49,778 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:17:49,779 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2021-03-11 14:17:49,779 INFO L428 AbstractCegarLoop]: === Iteration 61 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:17:49,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:17:49,779 INFO L82 PathProgramCache]: Analyzing trace with hash -699335147, now seen corresponding path program 52 times [2021-03-11 14:17:49,779 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:17:49,779 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [255825929] [2021-03-11 14:17:49,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:17:49,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:17:49,797 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:17:49,797 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:17:49,797 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:17:49,798 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:17:49,801 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:17:49,801 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:17:49,807 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:17:49,808 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:17:49,817 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:17:49,817 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:17:49,830 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:17:49,830 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:17:49,848 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:17:49,849 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:17:49,869 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:17:49,869 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:17:49,895 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:17:49,895 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:17:49,926 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:17:49,927 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:17:49,963 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:17:49,964 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:17:49,997 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:17:49,998 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [255825929] [2021-03-11 14:17:49,998 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:17:49,998 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:17:49,998 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1908124592] [2021-03-11 14:17:49,998 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:17:49,998 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:17:49,998 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:17:49,998 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:17:49,998 INFO L87 Difference]: Start difference. First operand 3134 states and 15628 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:50,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:17:50,151 INFO L93 Difference]: Finished difference Result 6056 states and 26968 transitions. [2021-03-11 14:17:50,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:17:50,152 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:17:50,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:17:50,164 INFO L225 Difference]: With dead ends: 6056 [2021-03-11 14:17:50,164 INFO L226 Difference]: Without dead ends: 6031 [2021-03-11 14:17:50,165 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 243.7ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:17:50,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6031 states. [2021-03-11 14:17:50,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6031 to 3127. [2021-03-11 14:17:50,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3127 states, 3126 states have (on average 4.993282149712092) internal successors, (15609), 3126 states have internal predecessors, (15609), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:50,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3127 states to 3127 states and 15609 transitions. [2021-03-11 14:17:50,302 INFO L78 Accepts]: Start accepts. Automaton has 3127 states and 15609 transitions. Word has length 31 [2021-03-11 14:17:50,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:17:50,302 INFO L480 AbstractCegarLoop]: Abstraction has 3127 states and 15609 transitions. [2021-03-11 14:17:50,302 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:50,302 INFO L276 IsEmpty]: Start isEmpty. Operand 3127 states and 15609 transitions. [2021-03-11 14:17:50,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:17:50,307 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:17:50,307 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:17:50,307 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2021-03-11 14:17:50,307 INFO L428 AbstractCegarLoop]: === Iteration 62 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:17:50,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:17:50,307 INFO L82 PathProgramCache]: Analyzing trace with hash -278674931, now seen corresponding path program 53 times [2021-03-11 14:17:50,307 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:17:50,307 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1097485152] [2021-03-11 14:17:50,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:17:50,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:17:50,328 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:17:50,328 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:17:50,329 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:17:50,329 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:17:50,333 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:17:50,333 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:17:50,340 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:17:50,340 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:17:50,350 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:17:50,351 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:17:50,366 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:17:50,366 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:17:50,390 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:17:50,391 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:17:50,418 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:17:50,419 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:17:50,451 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:17:50,452 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:17:50,491 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:17:50,491 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:17:50,537 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:17:50,538 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:17:50,571 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:17:50,571 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1097485152] [2021-03-11 14:17:50,571 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:17:50,571 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:17:50,572 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1675558708] [2021-03-11 14:17:50,572 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:17:50,572 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:17:50,573 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:17:50,573 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:17:50,573 INFO L87 Difference]: Start difference. First operand 3127 states and 15609 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:50,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:17:50,737 INFO L93 Difference]: Finished difference Result 6051 states and 26958 transitions. [2021-03-11 14:17:50,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:17:50,737 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:17:50,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:17:50,750 INFO L225 Difference]: With dead ends: 6051 [2021-03-11 14:17:50,750 INFO L226 Difference]: Without dead ends: 6034 [2021-03-11 14:17:50,750 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 282.6ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:17:50,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6034 states. [2021-03-11 14:17:50,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6034 to 3133. [2021-03-11 14:17:50,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3133 states, 3132 states have (on average 4.987228607918263) internal successors, (15620), 3132 states have internal predecessors, (15620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:50,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3133 states to 3133 states and 15620 transitions. [2021-03-11 14:17:50,888 INFO L78 Accepts]: Start accepts. Automaton has 3133 states and 15620 transitions. Word has length 31 [2021-03-11 14:17:50,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:17:50,888 INFO L480 AbstractCegarLoop]: Abstraction has 3133 states and 15620 transitions. [2021-03-11 14:17:50,888 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:50,888 INFO L276 IsEmpty]: Start isEmpty. Operand 3133 states and 15620 transitions. [2021-03-11 14:17:50,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:17:50,893 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:17:50,893 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:17:50,893 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2021-03-11 14:17:50,893 INFO L428 AbstractCegarLoop]: === Iteration 63 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:17:50,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:17:50,893 INFO L82 PathProgramCache]: Analyzing trace with hash -1123646383, now seen corresponding path program 54 times [2021-03-11 14:17:50,893 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:17:50,893 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1802131864] [2021-03-11 14:17:50,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:17:50,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:17:50,915 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:17:50,915 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:17:50,916 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:17:50,916 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:17:50,920 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:17:50,920 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:17:50,927 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:17:50,927 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:17:50,937 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:17:50,938 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:17:50,953 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:17:50,953 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:17:50,972 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:17:50,973 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:17:50,993 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:17:50,994 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:17:51,019 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:17:51,019 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:17:51,049 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:17:51,050 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:17:51,086 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:17:51,096 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:17:51,131 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:17:51,131 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1802131864] [2021-03-11 14:17:51,131 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:17:51,131 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:17:51,131 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1797913143] [2021-03-11 14:17:51,131 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:17:51,131 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:17:51,132 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:17:51,132 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:17:51,132 INFO L87 Difference]: Start difference. First operand 3133 states and 15620 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:51,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:17:51,309 INFO L93 Difference]: Finished difference Result 6052 states and 26954 transitions. [2021-03-11 14:17:51,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:17:51,310 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:17:51,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:17:51,322 INFO L225 Difference]: With dead ends: 6052 [2021-03-11 14:17:51,323 INFO L226 Difference]: Without dead ends: 6022 [2021-03-11 14:17:51,323 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 248.2ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:17:51,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6022 states. [2021-03-11 14:17:51,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6022 to 3121. [2021-03-11 14:17:51,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3121 states, 3120 states have (on average 4.9974358974358974) internal successors, (15592), 3120 states have internal predecessors, (15592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:51,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3121 states to 3121 states and 15592 transitions. [2021-03-11 14:17:51,459 INFO L78 Accepts]: Start accepts. Automaton has 3121 states and 15592 transitions. Word has length 31 [2021-03-11 14:17:51,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:17:51,459 INFO L480 AbstractCegarLoop]: Abstraction has 3121 states and 15592 transitions. [2021-03-11 14:17:51,459 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:51,459 INFO L276 IsEmpty]: Start isEmpty. Operand 3121 states and 15592 transitions. [2021-03-11 14:17:51,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:17:51,464 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:17:51,464 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:17:51,464 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2021-03-11 14:17:51,464 INFO L428 AbstractCegarLoop]: === Iteration 64 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:17:51,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:17:51,464 INFO L82 PathProgramCache]: Analyzing trace with hash 877426137, now seen corresponding path program 55 times [2021-03-11 14:17:51,464 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:17:51,464 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [571819913] [2021-03-11 14:17:51,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:17:51,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:17:51,491 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:17:51,491 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:17:51,491 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:17:51,491 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:17:51,495 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:17:51,495 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:17:51,501 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:17:51,501 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:17:51,511 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:17:51,511 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:17:51,526 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:17:51,527 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:17:51,544 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:17:51,544 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:17:51,565 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:17:51,565 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:17:51,590 INFO L142 QuantifierPusher]: treesize reduction 45, result has 59.1 percent of original size [2021-03-11 14:17:51,590 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:17:51,640 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:17:51,640 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:17:51,677 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:17:51,677 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:17:51,710 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:17:51,710 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [571819913] [2021-03-11 14:17:51,710 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:17:51,710 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:17:51,711 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1066546792] [2021-03-11 14:17:51,711 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:17:51,711 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:17:51,711 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:17:51,711 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:17:51,711 INFO L87 Difference]: Start difference. First operand 3121 states and 15592 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:51,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:17:51,893 INFO L93 Difference]: Finished difference Result 6058 states and 26979 transitions. [2021-03-11 14:17:51,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:17:51,894 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:17:51,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:17:51,907 INFO L225 Difference]: With dead ends: 6058 [2021-03-11 14:17:51,907 INFO L226 Difference]: Without dead ends: 6038 [2021-03-11 14:17:51,907 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 271.3ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:17:51,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6038 states. [2021-03-11 14:17:52,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6038 to 3133. [2021-03-11 14:17:52,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3133 states, 3132 states have (on average 4.989144316730524) internal successors, (15626), 3132 states have internal predecessors, (15626), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:52,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3133 states to 3133 states and 15626 transitions. [2021-03-11 14:17:52,051 INFO L78 Accepts]: Start accepts. Automaton has 3133 states and 15626 transitions. Word has length 31 [2021-03-11 14:17:52,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:17:52,051 INFO L480 AbstractCegarLoop]: Abstraction has 3133 states and 15626 transitions. [2021-03-11 14:17:52,051 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:52,051 INFO L276 IsEmpty]: Start isEmpty. Operand 3133 states and 15626 transitions. [2021-03-11 14:17:52,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:17:52,056 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:17:52,056 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:17:52,056 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2021-03-11 14:17:52,056 INFO L428 AbstractCegarLoop]: === Iteration 65 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:17:52,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:17:52,057 INFO L82 PathProgramCache]: Analyzing trace with hash 32454685, now seen corresponding path program 56 times [2021-03-11 14:17:52,057 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:17:52,057 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1822868528] [2021-03-11 14:17:52,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:17:52,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:17:52,075 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:17:52,075 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:17:52,075 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:17:52,076 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:17:52,079 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:17:52,080 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:17:52,086 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:17:52,087 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:17:52,097 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:17:52,098 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:17:52,111 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:17:52,111 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:17:52,131 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:17:52,131 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:17:52,152 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:17:52,153 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:17:52,177 INFO L142 QuantifierPusher]: treesize reduction 45, result has 59.1 percent of original size [2021-03-11 14:17:52,178 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:17:52,228 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:17:52,228 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:17:52,266 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:17:52,266 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:17:52,300 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:17:52,300 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1822868528] [2021-03-11 14:17:52,300 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:17:52,300 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:17:52,300 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1199533705] [2021-03-11 14:17:52,300 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:17:52,300 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:17:52,300 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:17:52,300 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:17:52,301 INFO L87 Difference]: Start difference. First operand 3133 states and 15626 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:52,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:17:52,496 INFO L93 Difference]: Finished difference Result 6055 states and 26967 transitions. [2021-03-11 14:17:52,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:17:52,496 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:17:52,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:17:52,509 INFO L225 Difference]: With dead ends: 6055 [2021-03-11 14:17:52,509 INFO L226 Difference]: Without dead ends: 6032 [2021-03-11 14:17:52,509 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 266.4ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:17:52,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6032 states. [2021-03-11 14:17:52,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6032 to 3127. [2021-03-11 14:17:52,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3127 states, 3126 states have (on average 4.993282149712092) internal successors, (15609), 3126 states have internal predecessors, (15609), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:52,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3127 states to 3127 states and 15609 transitions. [2021-03-11 14:17:52,646 INFO L78 Accepts]: Start accepts. Automaton has 3127 states and 15609 transitions. Word has length 31 [2021-03-11 14:17:52,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:17:52,646 INFO L480 AbstractCegarLoop]: Abstraction has 3127 states and 15609 transitions. [2021-03-11 14:17:52,646 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:52,646 INFO L276 IsEmpty]: Start isEmpty. Operand 3127 states and 15609 transitions. [2021-03-11 14:17:52,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:17:52,651 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:17:52,651 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:17:52,651 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2021-03-11 14:17:52,651 INFO L428 AbstractCegarLoop]: === Iteration 66 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:17:52,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:17:52,652 INFO L82 PathProgramCache]: Analyzing trace with hash -395507571, now seen corresponding path program 57 times [2021-03-11 14:17:52,652 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:17:52,652 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [532077657] [2021-03-11 14:17:52,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:17:52,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:17:52,666 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:17:52,666 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:17:52,666 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:17:52,666 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:17:52,670 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:17:52,670 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:17:52,676 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:17:52,676 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:17:52,686 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:17:52,686 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:17:52,699 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:17:52,700 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:17:52,717 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:17:52,717 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:17:52,738 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:17:52,738 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:17:52,764 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:17:52,764 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:17:52,795 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:17:52,796 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:17:52,832 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:17:52,833 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:17:52,867 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:17:52,867 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [532077657] [2021-03-11 14:17:52,867 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:17:52,867 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:17:52,867 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1919104311] [2021-03-11 14:17:52,867 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:17:52,867 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:17:52,867 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:17:52,867 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:17:52,868 INFO L87 Difference]: Start difference. First operand 3127 states and 15609 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:53,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:17:53,086 INFO L93 Difference]: Finished difference Result 6062 states and 26983 transitions. [2021-03-11 14:17:53,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:17:53,086 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:17:53,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:17:53,099 INFO L225 Difference]: With dead ends: 6062 [2021-03-11 14:17:53,099 INFO L226 Difference]: Without dead ends: 6042 [2021-03-11 14:17:53,099 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 250.5ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:17:53,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6042 states. [2021-03-11 14:17:53,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6042 to 3135. [2021-03-11 14:17:53,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3135 states, 3134 states have (on average 4.985322271857052) internal successors, (15624), 3134 states have internal predecessors, (15624), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:53,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3135 states to 3135 states and 15624 transitions. [2021-03-11 14:17:53,237 INFO L78 Accepts]: Start accepts. Automaton has 3135 states and 15624 transitions. Word has length 31 [2021-03-11 14:17:53,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:17:53,237 INFO L480 AbstractCegarLoop]: Abstraction has 3135 states and 15624 transitions. [2021-03-11 14:17:53,238 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:53,238 INFO L276 IsEmpty]: Start isEmpty. Operand 3135 states and 15624 transitions. [2021-03-11 14:17:53,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:17:53,242 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:17:53,242 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:17:53,242 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2021-03-11 14:17:53,243 INFO L428 AbstractCegarLoop]: === Iteration 67 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:17:53,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:17:53,243 INFO L82 PathProgramCache]: Analyzing trace with hash 519573917, now seen corresponding path program 58 times [2021-03-11 14:17:53,243 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:17:53,243 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1684098685] [2021-03-11 14:17:53,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:17:53,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:17:53,255 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:17:53,255 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:17:53,256 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:17:53,256 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:17:53,259 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:17:53,260 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:17:53,266 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:17:53,266 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:17:53,275 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:17:53,275 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:17:53,288 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:17:53,289 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:17:53,305 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:17:53,306 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:17:53,326 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:17:53,326 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:17:53,351 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:17:53,351 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:17:53,383 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:17:53,383 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:17:53,420 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:17:53,421 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:17:53,454 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:17:53,454 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1684098685] [2021-03-11 14:17:53,454 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:17:53,454 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:17:53,454 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [498934887] [2021-03-11 14:17:53,455 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:17:53,455 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:17:53,455 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:17:53,455 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:17:53,455 INFO L87 Difference]: Start difference. First operand 3135 states and 15624 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:53,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:17:53,622 INFO L93 Difference]: Finished difference Result 6061 states and 26973 transitions. [2021-03-11 14:17:53,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:17:53,622 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:17:53,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:17:53,635 INFO L225 Difference]: With dead ends: 6061 [2021-03-11 14:17:53,635 INFO L226 Difference]: Without dead ends: 6034 [2021-03-11 14:17:53,636 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 246.6ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:17:53,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6034 states. [2021-03-11 14:17:53,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6034 to 3127. [2021-03-11 14:17:53,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3127 states, 3126 states have (on average 4.991362763915547) internal successors, (15603), 3126 states have internal predecessors, (15603), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:53,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3127 states to 3127 states and 15603 transitions. [2021-03-11 14:17:53,773 INFO L78 Accepts]: Start accepts. Automaton has 3127 states and 15603 transitions. Word has length 31 [2021-03-11 14:17:53,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:17:53,773 INFO L480 AbstractCegarLoop]: Abstraction has 3127 states and 15603 transitions. [2021-03-11 14:17:53,773 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:53,773 INFO L276 IsEmpty]: Start isEmpty. Operand 3127 states and 15603 transitions. [2021-03-11 14:17:53,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:17:53,778 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:17:53,778 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:17:53,778 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2021-03-11 14:17:53,778 INFO L428 AbstractCegarLoop]: === Iteration 68 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:17:53,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:17:53,779 INFO L82 PathProgramCache]: Analyzing trace with hash -1664790259, now seen corresponding path program 59 times [2021-03-11 14:17:53,779 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:17:53,779 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1804361279] [2021-03-11 14:17:53,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:17:53,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:17:53,792 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:17:53,792 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:17:53,792 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:17:53,792 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:17:53,796 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:17:53,796 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:17:53,802 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:17:53,803 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:17:53,812 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:17:53,813 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:17:53,827 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:17:53,828 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:17:53,845 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:17:53,845 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:17:53,866 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:17:53,866 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:17:53,891 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:17:53,891 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:17:53,921 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:17:53,921 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:17:53,957 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:17:53,957 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:17:53,990 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:17:53,991 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1804361279] [2021-03-11 14:17:53,991 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:17:53,991 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:17:53,991 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1401497554] [2021-03-11 14:17:53,991 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:17:53,991 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:17:53,991 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:17:53,991 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:17:53,991 INFO L87 Difference]: Start difference. First operand 3127 states and 15603 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:54,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:17:54,132 INFO L93 Difference]: Finished difference Result 6054 states and 26959 transitions. [2021-03-11 14:17:54,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:17:54,132 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:17:54,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:17:54,145 INFO L225 Difference]: With dead ends: 6054 [2021-03-11 14:17:54,145 INFO L226 Difference]: Without dead ends: 6037 [2021-03-11 14:17:54,145 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 242.7ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:17:54,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6037 states. [2021-03-11 14:17:54,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6037 to 3133. [2021-03-11 14:17:54,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3133 states, 3132 states have (on average 4.9853128991060025) internal successors, (15614), 3132 states have internal predecessors, (15614), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:54,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3133 states to 3133 states and 15614 transitions. [2021-03-11 14:17:54,287 INFO L78 Accepts]: Start accepts. Automaton has 3133 states and 15614 transitions. Word has length 31 [2021-03-11 14:17:54,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:17:54,287 INFO L480 AbstractCegarLoop]: Abstraction has 3133 states and 15614 transitions. [2021-03-11 14:17:54,287 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:54,287 INFO L276 IsEmpty]: Start isEmpty. Operand 3133 states and 15614 transitions. [2021-03-11 14:17:54,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:17:54,292 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:17:54,292 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:17:54,292 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2021-03-11 14:17:54,292 INFO L428 AbstractCegarLoop]: === Iteration 69 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:17:54,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:17:54,292 INFO L82 PathProgramCache]: Analyzing trace with hash 95262681, now seen corresponding path program 60 times [2021-03-11 14:17:54,292 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:17:54,292 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1086486651] [2021-03-11 14:17:54,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:17:54,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:17:54,308 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:17:54,309 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:17:54,309 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:17:54,309 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:17:54,313 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:17:54,313 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:17:54,320 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:17:54,320 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:17:54,329 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:17:54,330 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:17:54,343 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:17:54,343 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:17:54,362 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:17:54,362 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:17:54,383 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:17:54,383 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:17:54,409 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:17:54,409 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:17:54,440 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:17:54,440 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:17:54,477 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:17:54,477 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:17:54,511 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:17:54,511 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1086486651] [2021-03-11 14:17:54,511 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:17:54,511 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:17:54,511 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1584922419] [2021-03-11 14:17:54,511 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:17:54,511 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:17:54,512 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:17:54,512 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:17:54,512 INFO L87 Difference]: Start difference. First operand 3133 states and 15614 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:54,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:17:54,658 INFO L93 Difference]: Finished difference Result 6056 states and 26957 transitions. [2021-03-11 14:17:54,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:17:54,658 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:17:54,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:17:54,671 INFO L225 Difference]: With dead ends: 6056 [2021-03-11 14:17:54,671 INFO L226 Difference]: Without dead ends: 6025 [2021-03-11 14:17:54,672 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 247.9ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:17:54,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6025 states. [2021-03-11 14:17:54,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6025 to 3121. [2021-03-11 14:17:54,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3121 states, 3120 states have (on average 4.99551282051282) internal successors, (15586), 3120 states have internal predecessors, (15586), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:54,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3121 states to 3121 states and 15586 transitions. [2021-03-11 14:17:54,807 INFO L78 Accepts]: Start accepts. Automaton has 3121 states and 15586 transitions. Word has length 31 [2021-03-11 14:17:54,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:17:54,807 INFO L480 AbstractCegarLoop]: Abstraction has 3121 states and 15586 transitions. [2021-03-11 14:17:54,807 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:54,807 INFO L276 IsEmpty]: Start isEmpty. Operand 3121 states and 15586 transitions. [2021-03-11 14:17:54,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:17:54,812 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:17:54,812 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:17:54,812 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2021-03-11 14:17:54,812 INFO L428 AbstractCegarLoop]: === Iteration 70 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:17:54,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:17:54,813 INFO L82 PathProgramCache]: Analyzing trace with hash 184368473, now seen corresponding path program 61 times [2021-03-11 14:17:54,813 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:17:54,813 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1391480734] [2021-03-11 14:17:54,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:17:54,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:17:54,831 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:17:54,831 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:17:54,831 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:17:54,831 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:17:54,835 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:17:54,835 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:17:54,841 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:17:54,842 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:17:54,851 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:17:54,851 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:17:54,865 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:17:54,865 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:17:54,882 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:17:54,883 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:17:54,904 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:17:54,904 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:17:54,930 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:17:54,930 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:17:54,960 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:17:54,961 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:17:54,997 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:17:54,997 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:17:55,031 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:17:55,031 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1391480734] [2021-03-11 14:17:55,031 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:17:55,031 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:17:55,031 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1122978192] [2021-03-11 14:17:55,031 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:17:55,031 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:17:55,032 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:17:55,032 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:17:55,032 INFO L87 Difference]: Start difference. First operand 3121 states and 15586 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:55,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:17:55,185 INFO L93 Difference]: Finished difference Result 6064 states and 26990 transitions. [2021-03-11 14:17:55,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:17:55,186 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:17:55,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:17:55,198 INFO L225 Difference]: With dead ends: 6064 [2021-03-11 14:17:55,198 INFO L226 Difference]: Without dead ends: 6044 [2021-03-11 14:17:55,199 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 248.7ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:17:55,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6044 states. [2021-03-11 14:17:55,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6044 to 3135. [2021-03-11 14:17:55,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3135 states, 3134 states have (on average 4.985960433950224) internal successors, (15626), 3134 states have internal predecessors, (15626), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:55,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3135 states to 3135 states and 15626 transitions. [2021-03-11 14:17:55,346 INFO L78 Accepts]: Start accepts. Automaton has 3135 states and 15626 transitions. Word has length 31 [2021-03-11 14:17:55,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:17:55,346 INFO L480 AbstractCegarLoop]: Abstraction has 3135 states and 15626 transitions. [2021-03-11 14:17:55,346 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:55,346 INFO L276 IsEmpty]: Start isEmpty. Operand 3135 states and 15626 transitions. [2021-03-11 14:17:55,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:17:55,352 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:17:55,352 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:17:55,352 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2021-03-11 14:17:55,352 INFO L428 AbstractCegarLoop]: === Iteration 71 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:17:55,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:17:55,353 INFO L82 PathProgramCache]: Analyzing trace with hash -1505574431, now seen corresponding path program 62 times [2021-03-11 14:17:55,353 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:17:55,353 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2013400251] [2021-03-11 14:17:55,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:17:55,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:17:55,368 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:17:55,368 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:17:55,368 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:17:55,369 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:17:55,372 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:17:55,372 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:17:55,379 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:17:55,379 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:17:55,389 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:17:55,389 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:17:55,402 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:17:55,402 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:17:55,436 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:17:55,437 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:17:55,458 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:17:55,458 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:17:55,484 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:17:55,484 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:17:55,514 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:17:55,514 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:17:55,550 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:17:55,551 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:17:55,584 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:17:55,584 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2013400251] [2021-03-11 14:17:55,584 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:17:55,584 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:17:55,584 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [408668829] [2021-03-11 14:17:55,584 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:17:55,584 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:17:55,584 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:17:55,585 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:17:55,585 INFO L87 Difference]: Start difference. First operand 3135 states and 15626 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:55,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:17:55,725 INFO L93 Difference]: Finished difference Result 6062 states and 26979 transitions. [2021-03-11 14:17:55,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:17:55,725 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:17:55,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:17:55,738 INFO L225 Difference]: With dead ends: 6062 [2021-03-11 14:17:55,738 INFO L226 Difference]: Without dead ends: 6037 [2021-03-11 14:17:55,738 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 259.1ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:17:55,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6037 states. [2021-03-11 14:17:55,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6037 to 3128. [2021-03-11 14:17:55,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3128 states, 3127 states have (on average 4.990725935401343) internal successors, (15606), 3127 states have internal predecessors, (15606), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:55,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3128 states to 3128 states and 15606 transitions. [2021-03-11 14:17:55,873 INFO L78 Accepts]: Start accepts. Automaton has 3128 states and 15606 transitions. Word has length 31 [2021-03-11 14:17:55,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:17:55,873 INFO L480 AbstractCegarLoop]: Abstraction has 3128 states and 15606 transitions. [2021-03-11 14:17:55,873 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:55,873 INFO L276 IsEmpty]: Start isEmpty. Operand 3128 states and 15606 transitions. [2021-03-11 14:17:55,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:17:55,878 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:17:55,878 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:17:55,878 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2021-03-11 14:17:55,878 INFO L428 AbstractCegarLoop]: === Iteration 72 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:17:55,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:17:55,879 INFO L82 PathProgramCache]: Analyzing trace with hash -664253999, now seen corresponding path program 63 times [2021-03-11 14:17:55,879 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:17:55,879 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1151829485] [2021-03-11 14:17:55,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:17:55,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:17:55,897 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:17:55,897 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:17:55,898 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:17:55,898 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:17:55,902 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:17:55,902 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:17:55,909 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:17:55,909 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:17:55,920 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:17:55,921 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:17:55,936 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:17:55,936 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:17:55,960 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:17:55,961 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:17:55,984 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:17:55,984 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:17:56,010 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:17:56,010 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:17:56,056 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:17:56,057 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:17:56,095 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:17:56,096 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:17:56,129 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:17:56,129 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1151829485] [2021-03-11 14:17:56,129 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:17:56,129 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:17:56,129 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [647149957] [2021-03-11 14:17:56,129 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:17:56,129 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:17:56,130 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:17:56,130 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:17:56,130 INFO L87 Difference]: Start difference. First operand 3128 states and 15606 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:56,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:17:56,276 INFO L93 Difference]: Finished difference Result 6066 states and 26988 transitions. [2021-03-11 14:17:56,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:17:56,277 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:17:56,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:17:56,289 INFO L225 Difference]: With dead ends: 6066 [2021-03-11 14:17:56,289 INFO L226 Difference]: Without dead ends: 6046 [2021-03-11 14:17:56,290 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 264.4ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:17:56,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6046 states. [2021-03-11 14:17:56,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6046 to 3136. [2021-03-11 14:17:56,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3136 states, 3135 states have (on average 4.982775119617225) internal successors, (15621), 3135 states have internal predecessors, (15621), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:56,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3136 states to 3136 states and 15621 transitions. [2021-03-11 14:17:56,426 INFO L78 Accepts]: Start accepts. Automaton has 3136 states and 15621 transitions. Word has length 31 [2021-03-11 14:17:56,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:17:56,426 INFO L480 AbstractCegarLoop]: Abstraction has 3136 states and 15621 transitions. [2021-03-11 14:17:56,426 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:56,426 INFO L276 IsEmpty]: Start isEmpty. Operand 3136 states and 15621 transitions. [2021-03-11 14:17:56,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:17:56,431 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:17:56,431 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:17:56,431 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2021-03-11 14:17:56,431 INFO L428 AbstractCegarLoop]: === Iteration 73 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:17:56,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:17:56,431 INFO L82 PathProgramCache]: Analyzing trace with hash 250827489, now seen corresponding path program 64 times [2021-03-11 14:17:56,431 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:17:56,431 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [951855378] [2021-03-11 14:17:56,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:17:56,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:17:56,445 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:17:56,445 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:17:56,446 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:17:56,446 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:17:56,449 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:17:56,450 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:17:56,456 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:17:56,456 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:17:56,465 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:17:56,466 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:17:56,480 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:17:56,480 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:17:56,497 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:17:56,497 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:17:56,518 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:17:56,519 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:17:56,544 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:17:56,545 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:17:56,575 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:17:56,576 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:17:56,612 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:17:56,612 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:17:56,646 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:17:56,646 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [951855378] [2021-03-11 14:17:56,646 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:17:56,646 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:17:56,646 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [45584228] [2021-03-11 14:17:56,646 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:17:56,646 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:17:56,646 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:17:56,646 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:17:56,647 INFO L87 Difference]: Start difference. First operand 3136 states and 15621 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:56,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:17:56,796 INFO L93 Difference]: Finished difference Result 6065 states and 26978 transitions. [2021-03-11 14:17:56,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:17:56,796 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:17:56,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:17:56,809 INFO L225 Difference]: With dead ends: 6065 [2021-03-11 14:17:56,809 INFO L226 Difference]: Without dead ends: 6038 [2021-03-11 14:17:56,809 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 247.2ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:17:56,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6038 states. [2021-03-11 14:17:56,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6038 to 3128. [2021-03-11 14:17:56,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3128 states, 3127 states have (on average 4.988487368084426) internal successors, (15599), 3127 states have internal predecessors, (15599), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:56,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3128 states to 3128 states and 15599 transitions. [2021-03-11 14:17:56,945 INFO L78 Accepts]: Start accepts. Automaton has 3128 states and 15599 transitions. Word has length 31 [2021-03-11 14:17:56,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:17:56,945 INFO L480 AbstractCegarLoop]: Abstraction has 3128 states and 15599 transitions. [2021-03-11 14:17:56,945 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:56,945 INFO L276 IsEmpty]: Start isEmpty. Operand 3128 states and 15599 transitions. [2021-03-11 14:17:56,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:17:56,950 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:17:56,950 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:17:56,950 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72 [2021-03-11 14:17:56,950 INFO L428 AbstractCegarLoop]: === Iteration 74 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:17:56,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:17:56,950 INFO L82 PathProgramCache]: Analyzing trace with hash 1092147921, now seen corresponding path program 65 times [2021-03-11 14:17:56,950 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:17:56,951 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1404694721] [2021-03-11 14:17:56,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:17:56,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:17:56,963 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:17:56,964 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:17:56,964 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:17:56,964 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:17:56,968 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:17:56,968 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:17:56,974 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:17:56,975 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:17:56,984 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:17:56,984 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:17:56,997 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:17:56,997 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:17:57,014 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:17:57,015 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:17:57,035 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:17:57,036 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:17:57,062 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:17:57,062 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:17:57,093 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:17:57,093 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:17:57,130 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:17:57,130 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:17:57,163 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:17:57,163 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1404694721] [2021-03-11 14:17:57,163 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:17:57,163 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:17:57,164 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1546724424] [2021-03-11 14:17:57,164 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:17:57,164 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:17:57,164 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:17:57,164 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:17:57,164 INFO L87 Difference]: Start difference. First operand 3128 states and 15599 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:57,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:17:57,307 INFO L93 Difference]: Finished difference Result 6061 states and 26970 transitions. [2021-03-11 14:17:57,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:17:57,307 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:17:57,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:17:57,320 INFO L225 Difference]: With dead ends: 6061 [2021-03-11 14:17:57,320 INFO L226 Difference]: Without dead ends: 6043 [2021-03-11 14:17:57,321 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 243.2ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:17:57,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6043 states. [2021-03-11 14:17:57,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6043 to 3135. [2021-03-11 14:17:57,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3135 states, 3134 states have (on average 4.981493299298021) internal successors, (15612), 3134 states have internal predecessors, (15612), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:57,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3135 states to 3135 states and 15612 transitions. [2021-03-11 14:17:57,456 INFO L78 Accepts]: Start accepts. Automaton has 3135 states and 15612 transitions. Word has length 31 [2021-03-11 14:17:57,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:17:57,457 INFO L480 AbstractCegarLoop]: Abstraction has 3135 states and 15612 transitions. [2021-03-11 14:17:57,457 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:57,457 INFO L276 IsEmpty]: Start isEmpty. Operand 3135 states and 15612 transitions. [2021-03-11 14:17:57,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:17:57,461 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:17:57,461 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:17:57,461 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73 [2021-03-11 14:17:57,462 INFO L428 AbstractCegarLoop]: === Iteration 75 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:17:57,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:17:57,462 INFO L82 PathProgramCache]: Analyzing trace with hash -597794983, now seen corresponding path program 66 times [2021-03-11 14:17:57,462 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:17:57,462 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [268554290] [2021-03-11 14:17:57,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:17:57,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:17:57,477 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:17:57,478 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:17:57,478 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:17:57,478 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:17:57,482 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:17:57,482 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:17:57,488 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:17:57,489 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:17:57,498 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:17:57,498 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:17:57,512 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:17:57,512 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:17:57,529 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:17:57,530 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:17:57,550 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:17:57,551 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:17:57,576 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:17:57,577 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:17:57,614 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:17:57,614 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:17:57,659 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:17:57,659 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:17:57,694 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:17:57,694 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [268554290] [2021-03-11 14:17:57,694 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:17:57,694 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:17:57,694 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1852143735] [2021-03-11 14:17:57,694 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:17:57,694 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:17:57,694 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:17:57,695 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:17:57,695 INFO L87 Difference]: Start difference. First operand 3135 states and 15612 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:57,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:17:57,868 INFO L93 Difference]: Finished difference Result 6062 states and 26965 transitions. [2021-03-11 14:17:57,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:17:57,869 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:17:57,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:17:57,882 INFO L225 Difference]: With dead ends: 6062 [2021-03-11 14:17:57,882 INFO L226 Difference]: Without dead ends: 6029 [2021-03-11 14:17:57,882 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 263.9ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:17:57,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6029 states. [2021-03-11 14:17:58,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6029 to 3121. [2021-03-11 14:17:58,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3121 states, 3120 states have (on average 4.993589743589744) internal successors, (15580), 3120 states have internal predecessors, (15580), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:58,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3121 states to 3121 states and 15580 transitions. [2021-03-11 14:17:58,020 INFO L78 Accepts]: Start accepts. Automaton has 3121 states and 15580 transitions. Word has length 31 [2021-03-11 14:17:58,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:17:58,020 INFO L480 AbstractCegarLoop]: Abstraction has 3121 states and 15580 transitions. [2021-03-11 14:17:58,020 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:58,020 INFO L276 IsEmpty]: Start isEmpty. Operand 3121 states and 15580 transitions. [2021-03-11 14:17:58,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:17:58,025 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:17:58,025 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:17:58,025 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74 [2021-03-11 14:17:58,025 INFO L428 AbstractCegarLoop]: === Iteration 76 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:17:58,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:17:58,025 INFO L82 PathProgramCache]: Analyzing trace with hash -1353660643, now seen corresponding path program 67 times [2021-03-11 14:17:58,025 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:17:58,025 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [79963846] [2021-03-11 14:17:58,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:17:58,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:17:58,043 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:17:58,044 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:17:58,044 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:17:58,045 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:17:58,049 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:17:58,049 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:17:58,056 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:17:58,056 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:17:58,067 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:17:58,067 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:17:58,083 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:17:58,083 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:17:58,107 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:17:58,107 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:17:58,136 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:17:58,137 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:17:58,170 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:17:58,171 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:17:58,211 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:17:58,212 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:17:58,259 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:17:58,260 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:17:58,303 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:17:58,303 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [79963846] [2021-03-11 14:17:58,303 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:17:58,303 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:17:58,303 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [122272576] [2021-03-11 14:17:58,303 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:17:58,303 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:17:58,303 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:17:58,303 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:17:58,304 INFO L87 Difference]: Start difference. First operand 3121 states and 15580 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:58,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:17:58,486 INFO L93 Difference]: Finished difference Result 6050 states and 26950 transitions. [2021-03-11 14:17:58,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:17:58,487 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:17:58,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:17:58,500 INFO L225 Difference]: With dead ends: 6050 [2021-03-11 14:17:58,500 INFO L226 Difference]: Without dead ends: 6033 [2021-03-11 14:17:58,500 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 298.0ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:17:58,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6033 states. [2021-03-11 14:17:58,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6033 to 3133. [2021-03-11 14:17:58,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3133 states, 3132 states have (on average 4.9853128991060025) internal successors, (15614), 3132 states have internal predecessors, (15614), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:58,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3133 states to 3133 states and 15614 transitions. [2021-03-11 14:17:58,641 INFO L78 Accepts]: Start accepts. Automaton has 3133 states and 15614 transitions. Word has length 31 [2021-03-11 14:17:58,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:17:58,641 INFO L480 AbstractCegarLoop]: Abstraction has 3133 states and 15614 transitions. [2021-03-11 14:17:58,641 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:58,641 INFO L276 IsEmpty]: Start isEmpty. Operand 3133 states and 15614 transitions. [2021-03-11 14:17:58,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:17:58,646 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:17:58,646 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:17:58,646 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75 [2021-03-11 14:17:58,646 INFO L428 AbstractCegarLoop]: === Iteration 77 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:17:58,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:17:58,646 INFO L82 PathProgramCache]: Analyzing trace with hash 2096335201, now seen corresponding path program 68 times [2021-03-11 14:17:58,646 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:17:58,646 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2067374756] [2021-03-11 14:17:58,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:17:58,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:17:58,668 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:17:58,669 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:17:58,669 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:17:58,669 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:17:58,673 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:17:58,673 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:17:58,680 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:17:58,681 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:17:58,692 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:17:58,692 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:17:58,708 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:17:58,708 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:17:58,731 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:17:58,731 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:17:58,753 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:17:58,754 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:17:58,779 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:17:58,780 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:17:58,810 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:17:58,811 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:17:58,858 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:17:58,858 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:17:58,892 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:17:58,892 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2067374756] [2021-03-11 14:17:58,892 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:17:58,892 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:17:58,892 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2007307999] [2021-03-11 14:17:58,892 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:17:58,893 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:17:58,893 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:17:58,893 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:17:58,893 INFO L87 Difference]: Start difference. First operand 3133 states and 15614 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:59,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:17:59,036 INFO L93 Difference]: Finished difference Result 6051 states and 26946 transitions. [2021-03-11 14:17:59,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:17:59,036 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:17:59,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:17:59,049 INFO L225 Difference]: With dead ends: 6051 [2021-03-11 14:17:59,049 INFO L226 Difference]: Without dead ends: 6027 [2021-03-11 14:17:59,049 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 265.1ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:17:59,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6027 states. [2021-03-11 14:17:59,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6027 to 3127. [2021-03-11 14:17:59,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3127 states, 3126 states have (on average 4.9894433781190015) internal successors, (15597), 3126 states have internal predecessors, (15597), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:59,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3127 states to 3127 states and 15597 transitions. [2021-03-11 14:17:59,185 INFO L78 Accepts]: Start accepts. Automaton has 3127 states and 15597 transitions. Word has length 31 [2021-03-11 14:17:59,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:17:59,185 INFO L480 AbstractCegarLoop]: Abstraction has 3127 states and 15597 transitions. [2021-03-11 14:17:59,185 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:59,185 INFO L276 IsEmpty]: Start isEmpty. Operand 3127 states and 15597 transitions. [2021-03-11 14:17:59,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:17:59,190 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:17:59,190 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:17:59,190 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76 [2021-03-11 14:17:59,190 INFO L428 AbstractCegarLoop]: === Iteration 78 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:17:59,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:17:59,190 INFO L82 PathProgramCache]: Analyzing trace with hash 2092684181, now seen corresponding path program 69 times [2021-03-11 14:17:59,191 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:17:59,191 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2094426964] [2021-03-11 14:17:59,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:17:59,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:17:59,207 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:17:59,208 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:17:59,208 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:17:59,208 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:17:59,212 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:17:59,212 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:17:59,220 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:17:59,220 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:17:59,231 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:17:59,231 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:17:59,247 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:17:59,247 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:17:59,267 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:17:59,267 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:17:59,288 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:17:59,289 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:17:59,315 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:17:59,315 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:17:59,346 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:17:59,346 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:17:59,383 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:17:59,383 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:17:59,417 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:17:59,417 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2094426964] [2021-03-11 14:17:59,417 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:17:59,417 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:17:59,417 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1507541984] [2021-03-11 14:17:59,417 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:17:59,417 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:17:59,417 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:17:59,418 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:17:59,418 INFO L87 Difference]: Start difference. First operand 3127 states and 15597 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:59,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:17:59,569 INFO L93 Difference]: Finished difference Result 6051 states and 26946 transitions. [2021-03-11 14:17:59,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:17:59,570 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:17:59,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:17:59,583 INFO L225 Difference]: With dead ends: 6051 [2021-03-11 14:17:59,583 INFO L226 Difference]: Without dead ends: 6034 [2021-03-11 14:17:59,583 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 252.7ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:17:59,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6034 states. [2021-03-11 14:17:59,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6034 to 3133. [2021-03-11 14:17:59,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3133 states, 3132 states have (on average 4.983397190293742) internal successors, (15608), 3132 states have internal predecessors, (15608), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:59,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3133 states to 3133 states and 15608 transitions. [2021-03-11 14:17:59,720 INFO L78 Accepts]: Start accepts. Automaton has 3133 states and 15608 transitions. Word has length 31 [2021-03-11 14:17:59,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:17:59,720 INFO L480 AbstractCegarLoop]: Abstraction has 3133 states and 15608 transitions. [2021-03-11 14:17:59,720 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:17:59,720 INFO L276 IsEmpty]: Start isEmpty. Operand 3133 states and 15608 transitions. [2021-03-11 14:17:59,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:17:59,725 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:17:59,725 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:17:59,725 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77 [2021-03-11 14:17:59,725 INFO L428 AbstractCegarLoop]: === Iteration 79 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:17:59,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:17:59,725 INFO L82 PathProgramCache]: Analyzing trace with hash -442230175, now seen corresponding path program 70 times [2021-03-11 14:17:59,725 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:17:59,725 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [469824937] [2021-03-11 14:17:59,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:17:59,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:17:59,743 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:17:59,743 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:17:59,743 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:17:59,744 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:17:59,747 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:17:59,747 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:17:59,754 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:17:59,754 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:17:59,764 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:17:59,764 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:17:59,777 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:17:59,777 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:17:59,795 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:17:59,795 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:17:59,816 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:17:59,816 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:17:59,843 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:17:59,843 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:17:59,873 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:17:59,873 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:17:59,910 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:17:59,911 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:17:59,944 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:17:59,944 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [469824937] [2021-03-11 14:17:59,945 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:17:59,945 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:17:59,945 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [30208815] [2021-03-11 14:17:59,945 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:17:59,945 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:17:59,945 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:17:59,945 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:17:59,945 INFO L87 Difference]: Start difference. First operand 3133 states and 15608 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:00,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:18:00,106 INFO L93 Difference]: Finished difference Result 6053 states and 26944 transitions. [2021-03-11 14:18:00,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:18:00,106 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:18:00,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:18:00,119 INFO L225 Difference]: With dead ends: 6053 [2021-03-11 14:18:00,119 INFO L226 Difference]: Without dead ends: 6028 [2021-03-11 14:18:00,120 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 250.4ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:18:00,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6028 states. [2021-03-11 14:18:00,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6028 to 3127. [2021-03-11 14:18:00,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3127 states, 3126 states have (on average 4.987523992322457) internal successors, (15591), 3126 states have internal predecessors, (15591), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:00,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3127 states to 3127 states and 15591 transitions. [2021-03-11 14:18:00,259 INFO L78 Accepts]: Start accepts. Automaton has 3127 states and 15591 transitions. Word has length 31 [2021-03-11 14:18:00,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:18:00,259 INFO L480 AbstractCegarLoop]: Abstraction has 3127 states and 15591 transitions. [2021-03-11 14:18:00,259 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:00,259 INFO L276 IsEmpty]: Start isEmpty. Operand 3127 states and 15591 transitions. [2021-03-11 14:18:00,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:18:00,264 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:18:00,264 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:18:00,264 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable78 [2021-03-11 14:18:00,264 INFO L428 AbstractCegarLoop]: === Iteration 80 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:18:00,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:18:00,264 INFO L82 PathProgramCache]: Analyzing trace with hash 823401493, now seen corresponding path program 71 times [2021-03-11 14:18:00,264 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:18:00,264 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [831807404] [2021-03-11 14:18:00,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:18:00,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:18:00,282 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:18:00,282 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:18:00,282 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:18:00,282 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:18:00,286 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:18:00,287 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:18:00,294 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:18:00,294 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:18:00,305 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:18:00,305 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:18:00,319 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:18:00,319 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:18:00,337 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:18:00,337 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:18:00,358 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:18:00,359 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:18:00,385 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:18:00,385 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:18:00,417 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:18:00,417 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:18:00,456 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:18:00,456 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:18:00,490 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:18:00,490 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [831807404] [2021-03-11 14:18:00,490 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:18:00,490 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:18:00,491 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1167834351] [2021-03-11 14:18:00,491 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:18:00,491 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:18:00,491 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:18:00,491 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:18:00,491 INFO L87 Difference]: Start difference. First operand 3127 states and 15591 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:00,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:18:00,642 INFO L93 Difference]: Finished difference Result 6054 states and 26947 transitions. [2021-03-11 14:18:00,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:18:00,643 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:18:00,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:18:00,656 INFO L225 Difference]: With dead ends: 6054 [2021-03-11 14:18:00,656 INFO L226 Difference]: Without dead ends: 6036 [2021-03-11 14:18:00,656 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 251.6ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:18:00,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6036 states. [2021-03-11 14:18:00,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6036 to 3134. [2021-03-11 14:18:00,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3134 states, 3133 states have (on average 4.980529843600383) internal successors, (15604), 3133 states have internal predecessors, (15604), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:00,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3134 states to 3134 states and 15604 transitions. [2021-03-11 14:18:00,794 INFO L78 Accepts]: Start accepts. Automaton has 3134 states and 15604 transitions. Word has length 31 [2021-03-11 14:18:00,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:18:00,794 INFO L480 AbstractCegarLoop]: Abstraction has 3134 states and 15604 transitions. [2021-03-11 14:18:00,794 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:00,795 INFO L276 IsEmpty]: Start isEmpty. Operand 3134 states and 15604 transitions. [2021-03-11 14:18:00,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:18:00,799 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:18:00,799 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:18:00,799 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79 [2021-03-11 14:18:00,800 INFO L428 AbstractCegarLoop]: === Iteration 81 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:18:00,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:18:00,800 INFO L82 PathProgramCache]: Analyzing trace with hash -866541411, now seen corresponding path program 72 times [2021-03-11 14:18:00,800 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:18:00,800 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1215998209] [2021-03-11 14:18:00,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:18:00,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:18:00,812 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:18:00,813 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:18:00,813 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:18:00,813 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:18:00,818 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:18:00,818 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:18:00,824 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:18:00,825 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:18:00,834 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:18:00,834 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:18:00,848 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:18:00,848 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:18:00,865 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:18:00,865 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:18:00,886 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:18:00,887 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:18:00,914 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:18:00,915 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:18:00,946 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:18:00,947 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:18:00,984 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:18:00,984 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:18:01,019 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:18:01,019 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1215998209] [2021-03-11 14:18:01,019 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:18:01,019 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:18:01,019 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [476073511] [2021-03-11 14:18:01,019 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:18:01,019 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:18:01,019 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:18:01,019 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:18:01,020 INFO L87 Difference]: Start difference. First operand 3134 states and 15604 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:01,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:18:01,181 INFO L93 Difference]: Finished difference Result 6055 states and 26942 transitions. [2021-03-11 14:18:01,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:18:01,182 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:18:01,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:18:01,195 INFO L225 Difference]: With dead ends: 6055 [2021-03-11 14:18:01,195 INFO L226 Difference]: Without dead ends: 6017 [2021-03-11 14:18:01,195 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 254.5ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:18:01,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6017 states. [2021-03-11 14:18:01,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6017 to 3115. [2021-03-11 14:18:01,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3115 states, 3114 states have (on average 4.997752087347463) internal successors, (15563), 3114 states have internal predecessors, (15563), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:01,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3115 states to 3115 states and 15563 transitions. [2021-03-11 14:18:01,338 INFO L78 Accepts]: Start accepts. Automaton has 3115 states and 15563 transitions. Word has length 31 [2021-03-11 14:18:01,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:18:01,338 INFO L480 AbstractCegarLoop]: Abstraction has 3115 states and 15563 transitions. [2021-03-11 14:18:01,338 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:01,338 INFO L276 IsEmpty]: Start isEmpty. Operand 3115 states and 15563 transitions. [2021-03-11 14:18:01,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:18:01,343 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:18:01,343 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:18:01,343 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80 [2021-03-11 14:18:01,343 INFO L428 AbstractCegarLoop]: === Iteration 82 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:18:01,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:18:01,343 INFO L82 PathProgramCache]: Analyzing trace with hash 1399992337, now seen corresponding path program 73 times [2021-03-11 14:18:01,344 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:18:01,344 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [612900866] [2021-03-11 14:18:01,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:18:01,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:18:01,357 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:18:01,357 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:18:01,357 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:18:01,358 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:18:01,361 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:18:01,361 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:18:01,368 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:18:01,368 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:18:01,378 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:18:01,378 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:18:01,392 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:18:01,392 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:18:01,412 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:18:01,413 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:18:01,434 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:18:01,435 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:18:01,480 INFO L142 QuantifierPusher]: treesize reduction 45, result has 59.1 percent of original size [2021-03-11 14:18:01,480 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:18:01,531 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:18:01,532 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:18:01,575 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:18:01,576 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:18:01,610 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:18:01,610 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [612900866] [2021-03-11 14:18:01,610 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:18:01,610 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:18:01,610 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [131254005] [2021-03-11 14:18:01,610 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:18:01,611 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:18:01,611 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:18:01,611 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:18:01,611 INFO L87 Difference]: Start difference. First operand 3115 states and 15563 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:01,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:18:01,778 INFO L93 Difference]: Finished difference Result 6088 states and 27047 transitions. [2021-03-11 14:18:01,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:18:01,779 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:18:01,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:18:01,791 INFO L225 Difference]: With dead ends: 6088 [2021-03-11 14:18:01,791 INFO L226 Difference]: Without dead ends: 6068 [2021-03-11 14:18:01,792 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 302.2ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:18:01,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6068 states. [2021-03-11 14:18:01,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6068 to 3138. [2021-03-11 14:18:01,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3138 states, 3137 states have (on average 4.985655084475614) internal successors, (15640), 3137 states have internal predecessors, (15640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:01,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3138 states to 3138 states and 15640 transitions. [2021-03-11 14:18:01,929 INFO L78 Accepts]: Start accepts. Automaton has 3138 states and 15640 transitions. Word has length 31 [2021-03-11 14:18:01,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:18:01,929 INFO L480 AbstractCegarLoop]: Abstraction has 3138 states and 15640 transitions. [2021-03-11 14:18:01,929 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:01,929 INFO L276 IsEmpty]: Start isEmpty. Operand 3138 states and 15640 transitions. [2021-03-11 14:18:01,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:18:01,934 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:18:01,934 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:18:01,934 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81 [2021-03-11 14:18:01,934 INFO L428 AbstractCegarLoop]: === Iteration 83 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:18:01,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:18:01,934 INFO L82 PathProgramCache]: Analyzing trace with hash 555020885, now seen corresponding path program 74 times [2021-03-11 14:18:01,934 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:18:01,934 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1664633600] [2021-03-11 14:18:01,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:18:01,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:18:01,947 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:18:01,947 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:18:01,947 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:18:01,947 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:18:01,951 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:18:01,951 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:18:01,958 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:18:01,958 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:18:01,967 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:18:01,968 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:18:01,981 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:18:01,981 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:18:01,999 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:18:02,000 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:18:02,022 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:18:02,022 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:18:02,066 INFO L142 QuantifierPusher]: treesize reduction 45, result has 59.1 percent of original size [2021-03-11 14:18:02,066 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:18:02,118 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:18:02,118 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:18:02,156 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:18:02,156 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:18:02,191 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:18:02,192 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1664633600] [2021-03-11 14:18:02,192 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:18:02,192 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:18:02,192 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [991563635] [2021-03-11 14:18:02,192 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:18:02,192 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:18:02,192 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:18:02,192 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:18:02,192 INFO L87 Difference]: Start difference. First operand 3138 states and 15640 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:02,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:18:02,345 INFO L93 Difference]: Finished difference Result 6085 states and 27035 transitions. [2021-03-11 14:18:02,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:18:02,345 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:18:02,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:18:02,359 INFO L225 Difference]: With dead ends: 6085 [2021-03-11 14:18:02,359 INFO L226 Difference]: Without dead ends: 6062 [2021-03-11 14:18:02,359 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 288.4ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:18:02,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6062 states. [2021-03-11 14:18:02,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6062 to 3132. [2021-03-11 14:18:02,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3132 states, 3131 states have (on average 4.989779623123603) internal successors, (15623), 3131 states have internal predecessors, (15623), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:02,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3132 states to 3132 states and 15623 transitions. [2021-03-11 14:18:02,497 INFO L78 Accepts]: Start accepts. Automaton has 3132 states and 15623 transitions. Word has length 31 [2021-03-11 14:18:02,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:18:02,497 INFO L480 AbstractCegarLoop]: Abstraction has 3132 states and 15623 transitions. [2021-03-11 14:18:02,497 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:02,497 INFO L276 IsEmpty]: Start isEmpty. Operand 3132 states and 15623 transitions. [2021-03-11 14:18:02,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:18:02,502 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:18:02,502 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:18:02,502 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82 [2021-03-11 14:18:02,502 INFO L428 AbstractCegarLoop]: === Iteration 84 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:18:02,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:18:02,502 INFO L82 PathProgramCache]: Analyzing trace with hash 339214247, now seen corresponding path program 75 times [2021-03-11 14:18:02,502 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:18:02,502 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [535622114] [2021-03-11 14:18:02,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:18:02,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:18:02,520 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:18:02,521 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:18:02,521 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:18:02,521 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:18:02,525 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:18:02,525 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:18:02,533 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:18:02,534 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:18:02,545 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:18:02,545 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:18:02,561 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:18:02,561 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:18:02,585 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:18:02,586 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:18:02,615 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:18:02,616 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:18:02,671 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:18:02,672 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:18:02,714 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:18:02,714 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:18:02,763 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:18:02,764 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:18:02,808 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:18:02,808 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [535622114] [2021-03-11 14:18:02,808 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:18:02,809 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:18:02,809 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1152830552] [2021-03-11 14:18:02,809 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:18:02,809 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:18:02,809 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:18:02,809 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:18:02,809 INFO L87 Difference]: Start difference. First operand 3132 states and 15623 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:03,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:18:03,018 INFO L93 Difference]: Finished difference Result 6098 states and 27062 transitions. [2021-03-11 14:18:03,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:18:03,018 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:18:03,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:18:03,031 INFO L225 Difference]: With dead ends: 6098 [2021-03-11 14:18:03,031 INFO L226 Difference]: Without dead ends: 6078 [2021-03-11 14:18:03,032 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 340.2ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:18:03,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6078 states. [2021-03-11 14:18:03,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6078 to 3143. [2021-03-11 14:18:03,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3143 states, 3142 states have (on average 4.978676002546149) internal successors, (15643), 3142 states have internal predecessors, (15643), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:03,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3143 states to 3143 states and 15643 transitions. [2021-03-11 14:18:03,179 INFO L78 Accepts]: Start accepts. Automaton has 3143 states and 15643 transitions. Word has length 31 [2021-03-11 14:18:03,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:18:03,179 INFO L480 AbstractCegarLoop]: Abstraction has 3143 states and 15643 transitions. [2021-03-11 14:18:03,179 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:03,179 INFO L276 IsEmpty]: Start isEmpty. Operand 3143 states and 15643 transitions. [2021-03-11 14:18:03,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:18:03,185 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:18:03,185 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:18:03,185 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83 [2021-03-11 14:18:03,185 INFO L428 AbstractCegarLoop]: === Iteration 85 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:18:03,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:18:03,185 INFO L82 PathProgramCache]: Analyzing trace with hash 1676781461, now seen corresponding path program 76 times [2021-03-11 14:18:03,185 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:18:03,185 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [79950007] [2021-03-11 14:18:03,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:18:03,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:18:03,203 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:18:03,203 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:18:03,204 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:18:03,204 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:18:03,208 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:18:03,208 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:18:03,215 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:18:03,216 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:18:03,227 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:18:03,228 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:18:03,244 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:18:03,244 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:18:03,269 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:18:03,269 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:18:03,298 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:18:03,299 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:18:03,346 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:18:03,347 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:18:03,381 INFO L142 QuantifierPusher]: treesize reduction 72, result has 49.7 percent of original size [2021-03-11 14:18:03,382 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-03-11 14:18:03,420 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:18:03,421 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:18:03,456 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:18:03,456 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [79950007] [2021-03-11 14:18:03,456 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:18:03,456 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:18:03,456 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1759314969] [2021-03-11 14:18:03,457 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:18:03,457 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:18:03,457 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:18:03,457 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:18:03,457 INFO L87 Difference]: Start difference. First operand 3143 states and 15643 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:03,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:18:03,622 INFO L93 Difference]: Finished difference Result 6100 states and 27056 transitions. [2021-03-11 14:18:03,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:18:03,623 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:18:03,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:18:03,636 INFO L225 Difference]: With dead ends: 6100 [2021-03-11 14:18:03,636 INFO L226 Difference]: Without dead ends: 6067 [2021-03-11 14:18:03,636 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 267.1ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:18:03,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6067 states. [2021-03-11 14:18:03,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6067 to 3132. [2021-03-11 14:18:03,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3132 states, 3131 states have (on average 4.987224528904504) internal successors, (15615), 3131 states have internal predecessors, (15615), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:03,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3132 states to 3132 states and 15615 transitions. [2021-03-11 14:18:03,774 INFO L78 Accepts]: Start accepts. Automaton has 3132 states and 15615 transitions. Word has length 31 [2021-03-11 14:18:03,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:18:03,774 INFO L480 AbstractCegarLoop]: Abstraction has 3132 states and 15615 transitions. [2021-03-11 14:18:03,774 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:03,774 INFO L276 IsEmpty]: Start isEmpty. Operand 3132 states and 15615 transitions. [2021-03-11 14:18:03,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:18:03,779 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:18:03,779 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:18:03,779 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable84 [2021-03-11 14:18:03,779 INFO L428 AbstractCegarLoop]: === Iteration 86 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:18:03,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:18:03,779 INFO L82 PathProgramCache]: Analyzing trace with hash -930068441, now seen corresponding path program 77 times [2021-03-11 14:18:03,780 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:18:03,780 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [642809687] [2021-03-11 14:18:03,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:18:03,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:18:03,793 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:18:03,793 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:18:03,793 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:18:03,793 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:18:03,797 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:18:03,797 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:18:03,804 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:18:03,804 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:18:03,814 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:18:03,814 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:18:03,827 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:18:03,828 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:18:03,845 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:18:03,845 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:18:03,867 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:18:03,867 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:18:03,910 INFO L142 QuantifierPusher]: treesize reduction 54, result has 55.4 percent of original size [2021-03-11 14:18:03,911 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-03-11 14:18:03,964 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:18:03,964 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:18:04,001 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:18:04,001 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:18:04,036 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:18:04,037 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [642809687] [2021-03-11 14:18:04,037 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:18:04,037 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:18:04,037 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1267337996] [2021-03-11 14:18:04,037 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:18:04,037 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:18:04,037 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:18:04,037 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:18:04,037 INFO L87 Difference]: Start difference. First operand 3132 states and 15615 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:04,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:18:04,211 INFO L93 Difference]: Finished difference Result 6088 states and 27032 transitions. [2021-03-11 14:18:04,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:18:04,211 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:18:04,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:18:04,224 INFO L225 Difference]: With dead ends: 6088 [2021-03-11 14:18:04,225 INFO L226 Difference]: Without dead ends: 6071 [2021-03-11 14:18:04,225 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 288.5ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:18:04,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6071 states. [2021-03-11 14:18:04,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6071 to 3139. [2021-03-11 14:18:04,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3139 states, 3138 states have (on average 4.980242192479286) internal successors, (15628), 3138 states have internal predecessors, (15628), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:04,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3139 states to 3139 states and 15628 transitions. [2021-03-11 14:18:04,365 INFO L78 Accepts]: Start accepts. Automaton has 3139 states and 15628 transitions. Word has length 31 [2021-03-11 14:18:04,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:18:04,365 INFO L480 AbstractCegarLoop]: Abstraction has 3139 states and 15628 transitions. [2021-03-11 14:18:04,365 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:04,365 INFO L276 IsEmpty]: Start isEmpty. Operand 3139 states and 15628 transitions. [2021-03-11 14:18:04,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:18:04,371 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:18:04,371 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:18:04,371 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable85 [2021-03-11 14:18:04,371 INFO L428 AbstractCegarLoop]: === Iteration 87 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:18:04,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:18:04,371 INFO L82 PathProgramCache]: Analyzing trace with hash 1252470225, now seen corresponding path program 78 times [2021-03-11 14:18:04,371 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:18:04,371 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [833691370] [2021-03-11 14:18:04,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:18:04,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:18:04,384 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:18:04,384 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:18:04,384 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:18:04,384 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:18:04,388 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:18:04,388 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:18:04,395 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:18:04,395 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:18:04,405 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:18:04,405 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:18:04,418 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:18:04,419 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:18:04,436 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:18:04,436 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:18:04,458 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:18:04,458 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:18:04,501 INFO L142 QuantifierPusher]: treesize reduction 54, result has 55.4 percent of original size [2021-03-11 14:18:04,501 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-03-11 14:18:04,554 INFO L142 QuantifierPusher]: treesize reduction 72, result has 49.7 percent of original size [2021-03-11 14:18:04,555 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-03-11 14:18:04,594 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:18:04,594 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:18:04,629 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:18:04,630 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [833691370] [2021-03-11 14:18:04,630 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:18:04,630 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:18:04,630 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [706739978] [2021-03-11 14:18:04,630 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:18:04,630 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:18:04,630 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:18:04,630 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:18:04,630 INFO L87 Difference]: Start difference. First operand 3139 states and 15628 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:04,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:18:04,766 INFO L93 Difference]: Finished difference Result 6093 states and 27035 transitions. [2021-03-11 14:18:04,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:18:04,766 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:18:04,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:18:04,779 INFO L225 Difference]: With dead ends: 6093 [2021-03-11 14:18:04,779 INFO L226 Difference]: Without dead ends: 6056 [2021-03-11 14:18:04,779 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 265.4ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:18:04,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6056 states. [2021-03-11 14:18:04,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6056 to 3124. [2021-03-11 14:18:04,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3124 states, 3123 states have (on average 4.99295549151457) internal successors, (15593), 3123 states have internal predecessors, (15593), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:04,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3124 states to 3124 states and 15593 transitions. [2021-03-11 14:18:04,915 INFO L78 Accepts]: Start accepts. Automaton has 3124 states and 15593 transitions. Word has length 31 [2021-03-11 14:18:04,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:18:04,915 INFO L480 AbstractCegarLoop]: Abstraction has 3124 states and 15593 transitions. [2021-03-11 14:18:04,915 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:04,915 INFO L276 IsEmpty]: Start isEmpty. Operand 3124 states and 15593 transitions. [2021-03-11 14:18:04,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:18:04,920 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:18:04,920 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:18:04,920 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable86 [2021-03-11 14:18:04,920 INFO L428 AbstractCegarLoop]: === Iteration 88 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:18:04,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:18:04,920 INFO L82 PathProgramCache]: Analyzing trace with hash -881864525, now seen corresponding path program 79 times [2021-03-11 14:18:04,921 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:18:04,921 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1675374862] [2021-03-11 14:18:04,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:18:04,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:18:04,939 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:18:04,939 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:18:04,939 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:18:04,940 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:18:04,944 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:18:04,944 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:18:04,951 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:18:04,952 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:18:04,963 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:18:04,963 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:18:04,979 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:18:04,980 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:18:05,004 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:18:05,005 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:18:05,035 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:18:05,035 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:18:05,069 INFO L142 QuantifierPusher]: treesize reduction 45, result has 59.1 percent of original size [2021-03-11 14:18:05,070 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:18:05,133 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:18:05,133 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:18:05,172 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:18:05,173 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:18:05,207 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:18:05,207 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1675374862] [2021-03-11 14:18:05,207 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:18:05,207 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:18:05,207 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [552991384] [2021-03-11 14:18:05,208 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:18:05,208 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:18:05,208 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:18:05,208 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:18:05,208 INFO L87 Difference]: Start difference. First operand 3124 states and 15593 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:05,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:18:05,370 INFO L93 Difference]: Finished difference Result 6079 states and 27021 transitions. [2021-03-11 14:18:05,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:18:05,371 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:18:05,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:18:05,384 INFO L225 Difference]: With dead ends: 6079 [2021-03-11 14:18:05,384 INFO L226 Difference]: Without dead ends: 6059 [2021-03-11 14:18:05,384 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 315.8ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:18:05,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6059 states. [2021-03-11 14:18:05,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6059 to 3136. [2021-03-11 14:18:05,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3136 states, 3135 states have (on average 4.984688995215311) internal successors, (15627), 3135 states have internal predecessors, (15627), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:05,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3136 states to 3136 states and 15627 transitions. [2021-03-11 14:18:05,562 INFO L78 Accepts]: Start accepts. Automaton has 3136 states and 15627 transitions. Word has length 31 [2021-03-11 14:18:05,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:18:05,562 INFO L480 AbstractCegarLoop]: Abstraction has 3136 states and 15627 transitions. [2021-03-11 14:18:05,562 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:05,562 INFO L276 IsEmpty]: Start isEmpty. Operand 3136 states and 15627 transitions. [2021-03-11 14:18:05,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:18:05,567 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:18:05,567 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:18:05,567 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable87 [2021-03-11 14:18:05,567 INFO L428 AbstractCegarLoop]: === Iteration 89 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:18:05,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:18:05,568 INFO L82 PathProgramCache]: Analyzing trace with hash -1726835977, now seen corresponding path program 80 times [2021-03-11 14:18:05,568 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:18:05,568 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1621994651] [2021-03-11 14:18:05,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:18:05,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:18:05,581 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:18:05,582 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:18:05,582 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:18:05,582 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:18:05,586 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:18:05,586 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:18:05,594 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:18:05,594 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:18:05,603 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:18:05,604 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:18:05,616 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:18:05,617 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:18:05,634 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:18:05,634 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:18:05,658 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:18:05,659 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:18:05,691 INFO L142 QuantifierPusher]: treesize reduction 45, result has 59.1 percent of original size [2021-03-11 14:18:05,691 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:18:05,749 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:18:05,749 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:18:05,785 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:18:05,785 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:18:05,819 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:18:05,819 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1621994651] [2021-03-11 14:18:05,819 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:18:05,819 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:18:05,819 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [917834114] [2021-03-11 14:18:05,819 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:18:05,819 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:18:05,821 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:18:05,821 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:18:05,821 INFO L87 Difference]: Start difference. First operand 3136 states and 15627 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:05,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:18:05,964 INFO L93 Difference]: Finished difference Result 6076 states and 27009 transitions. [2021-03-11 14:18:05,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:18:05,965 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:18:05,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:18:05,977 INFO L225 Difference]: With dead ends: 6076 [2021-03-11 14:18:05,977 INFO L226 Difference]: Without dead ends: 6053 [2021-03-11 14:18:05,977 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 279.6ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:18:06,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6053 states. [2021-03-11 14:18:06,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6053 to 3130. [2021-03-11 14:18:06,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3130 states, 3129 states have (on average 4.988814317673378) internal successors, (15610), 3129 states have internal predecessors, (15610), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:06,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3130 states to 3130 states and 15610 transitions. [2021-03-11 14:18:06,116 INFO L78 Accepts]: Start accepts. Automaton has 3130 states and 15610 transitions. Word has length 31 [2021-03-11 14:18:06,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:18:06,116 INFO L480 AbstractCegarLoop]: Abstraction has 3130 states and 15610 transitions. [2021-03-11 14:18:06,116 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:06,116 INFO L276 IsEmpty]: Start isEmpty. Operand 3130 states and 15610 transitions. [2021-03-11 14:18:06,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:18:06,122 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:18:06,123 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:18:06,123 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable88 [2021-03-11 14:18:06,123 INFO L428 AbstractCegarLoop]: === Iteration 90 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:18:06,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:18:06,123 INFO L82 PathProgramCache]: Analyzing trace with hash 2140169063, now seen corresponding path program 81 times [2021-03-11 14:18:06,123 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:18:06,123 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1683520223] [2021-03-11 14:18:06,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:18:06,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:18:06,141 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:18:06,141 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:18:06,141 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:18:06,142 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:18:06,145 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:18:06,146 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:18:06,152 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:18:06,153 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:18:06,163 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:18:06,164 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:18:06,180 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:18:06,181 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:18:06,204 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:18:06,205 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:18:06,231 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:18:06,232 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:18:06,264 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:18:06,265 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:18:06,305 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:18:06,306 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:18:06,343 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:18:06,343 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:18:06,377 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:18:06,377 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1683520223] [2021-03-11 14:18:06,377 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:18:06,377 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:18:06,377 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1109029767] [2021-03-11 14:18:06,377 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:18:06,377 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:18:06,377 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:18:06,377 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:18:06,377 INFO L87 Difference]: Start difference. First operand 3130 states and 15610 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:06,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:18:06,529 INFO L93 Difference]: Finished difference Result 6083 states and 27025 transitions. [2021-03-11 14:18:06,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:18:06,530 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:18:06,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:18:06,542 INFO L225 Difference]: With dead ends: 6083 [2021-03-11 14:18:06,543 INFO L226 Difference]: Without dead ends: 6063 [2021-03-11 14:18:06,543 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 280.8ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:18:06,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6063 states. [2021-03-11 14:18:06,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6063 to 3138. [2021-03-11 14:18:06,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3138 states, 3137 states have (on average 4.980873445967485) internal successors, (15625), 3137 states have internal predecessors, (15625), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:06,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3138 states to 3138 states and 15625 transitions. [2021-03-11 14:18:06,678 INFO L78 Accepts]: Start accepts. Automaton has 3138 states and 15625 transitions. Word has length 31 [2021-03-11 14:18:06,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:18:06,678 INFO L480 AbstractCegarLoop]: Abstraction has 3138 states and 15625 transitions. [2021-03-11 14:18:06,678 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:06,679 INFO L276 IsEmpty]: Start isEmpty. Operand 3138 states and 15625 transitions. [2021-03-11 14:18:06,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:18:06,683 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:18:06,683 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:18:06,683 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable89 [2021-03-11 14:18:06,683 INFO L428 AbstractCegarLoop]: === Iteration 91 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:18:06,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:18:06,684 INFO L82 PathProgramCache]: Analyzing trace with hash -1239716745, now seen corresponding path program 82 times [2021-03-11 14:18:06,684 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:18:06,684 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [120300443] [2021-03-11 14:18:06,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:18:06,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:18:06,702 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:18:06,702 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:18:06,702 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:18:06,702 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:18:06,706 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:18:06,707 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:18:06,713 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:18:06,714 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:18:06,724 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:18:06,725 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:18:06,741 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:18:06,741 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:18:06,764 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:18:06,765 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:18:06,792 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:18:06,792 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:18:06,829 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:18:06,830 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:18:06,870 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:18:06,870 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:18:06,917 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:18:06,918 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:18:06,961 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:18:06,961 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [120300443] [2021-03-11 14:18:06,961 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:18:06,961 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:18:06,961 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1903942312] [2021-03-11 14:18:06,961 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:18:06,961 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:18:06,961 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:18:06,961 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:18:06,962 INFO L87 Difference]: Start difference. First operand 3138 states and 15625 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:07,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:18:07,124 INFO L93 Difference]: Finished difference Result 6082 states and 27015 transitions. [2021-03-11 14:18:07,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:18:07,124 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:18:07,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:18:07,138 INFO L225 Difference]: With dead ends: 6082 [2021-03-11 14:18:07,138 INFO L226 Difference]: Without dead ends: 6055 [2021-03-11 14:18:07,139 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 302.3ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:18:07,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6055 states. [2021-03-11 14:18:07,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6055 to 3130. [2021-03-11 14:18:07,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3130 states, 3129 states have (on average 4.986896772131671) internal successors, (15604), 3129 states have internal predecessors, (15604), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:07,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3130 states to 3130 states and 15604 transitions. [2021-03-11 14:18:07,280 INFO L78 Accepts]: Start accepts. Automaton has 3130 states and 15604 transitions. Word has length 31 [2021-03-11 14:18:07,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:18:07,280 INFO L480 AbstractCegarLoop]: Abstraction has 3130 states and 15604 transitions. [2021-03-11 14:18:07,280 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:07,280 INFO L276 IsEmpty]: Start isEmpty. Operand 3130 states and 15604 transitions. [2021-03-11 14:18:07,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:18:07,285 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:18:07,285 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:18:07,285 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable90 [2021-03-11 14:18:07,285 INFO L428 AbstractCegarLoop]: === Iteration 92 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:18:07,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:18:07,285 INFO L82 PathProgramCache]: Analyzing trace with hash 870886375, now seen corresponding path program 83 times [2021-03-11 14:18:07,285 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:18:07,285 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1785990379] [2021-03-11 14:18:07,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:18:07,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:18:07,298 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:18:07,298 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:18:07,298 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:18:07,299 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:18:07,302 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:18:07,302 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:18:07,309 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:18:07,309 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:18:07,318 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:18:07,318 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:18:07,331 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:18:07,332 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:18:07,349 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:18:07,349 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:18:07,370 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:18:07,370 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:18:07,395 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:18:07,395 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:18:07,439 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:18:07,440 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:18:07,476 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:18:07,476 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:18:07,509 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:18:07,510 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1785990379] [2021-03-11 14:18:07,510 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:18:07,510 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:18:07,510 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1126106051] [2021-03-11 14:18:07,510 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:18:07,510 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:18:07,510 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:18:07,510 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:18:07,510 INFO L87 Difference]: Start difference. First operand 3130 states and 15604 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:07,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:18:07,672 INFO L93 Difference]: Finished difference Result 6075 states and 27001 transitions. [2021-03-11 14:18:07,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:18:07,673 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:18:07,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:18:07,686 INFO L225 Difference]: With dead ends: 6075 [2021-03-11 14:18:07,686 INFO L226 Difference]: Without dead ends: 6058 [2021-03-11 14:18:07,686 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 255.4ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:18:07,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6058 states. [2021-03-11 14:18:07,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6058 to 3136. [2021-03-11 14:18:07,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3136 states, 3135 states have (on average 4.980861244019139) internal successors, (15615), 3135 states have internal predecessors, (15615), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:07,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3136 states to 3136 states and 15615 transitions. [2021-03-11 14:18:07,831 INFO L78 Accepts]: Start accepts. Automaton has 3136 states and 15615 transitions. Word has length 31 [2021-03-11 14:18:07,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:18:07,831 INFO L480 AbstractCegarLoop]: Abstraction has 3136 states and 15615 transitions. [2021-03-11 14:18:07,831 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:07,831 INFO L276 IsEmpty]: Start isEmpty. Operand 3136 states and 15615 transitions. [2021-03-11 14:18:07,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:18:07,836 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:18:07,836 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:18:07,836 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable91 [2021-03-11 14:18:07,836 INFO L428 AbstractCegarLoop]: === Iteration 93 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:18:07,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:18:07,836 INFO L82 PathProgramCache]: Analyzing trace with hash -1664027981, now seen corresponding path program 84 times [2021-03-11 14:18:07,837 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:18:07,837 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1652984960] [2021-03-11 14:18:07,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:18:07,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:18:07,854 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:18:07,855 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:18:07,855 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:18:07,855 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:18:07,859 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:18:07,860 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:18:07,866 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:18:07,867 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:18:07,878 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:18:07,878 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:18:07,894 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:18:07,895 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:18:07,918 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:18:07,919 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:18:07,946 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:18:07,947 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:18:07,977 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:18:07,977 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:18:08,009 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:18:08,010 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:18:08,047 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:18:08,053 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:18:08,087 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:18:08,087 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1652984960] [2021-03-11 14:18:08,087 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:18:08,087 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:18:08,087 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [788582373] [2021-03-11 14:18:08,087 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:18:08,087 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:18:08,087 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:18:08,087 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:18:08,087 INFO L87 Difference]: Start difference. First operand 3136 states and 15615 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:08,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:18:08,235 INFO L93 Difference]: Finished difference Result 6077 states and 26999 transitions. [2021-03-11 14:18:08,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:18:08,236 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:18:08,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:18:08,248 INFO L225 Difference]: With dead ends: 6077 [2021-03-11 14:18:08,249 INFO L226 Difference]: Without dead ends: 6046 [2021-03-11 14:18:08,249 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 271.3ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:18:08,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6046 states. [2021-03-11 14:18:08,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6046 to 3124. [2021-03-11 14:18:08,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3124 states, 3123 states have (on average 4.991034261927633) internal successors, (15587), 3123 states have internal predecessors, (15587), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:08,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3124 states to 3124 states and 15587 transitions. [2021-03-11 14:18:08,388 INFO L78 Accepts]: Start accepts. Automaton has 3124 states and 15587 transitions. Word has length 31 [2021-03-11 14:18:08,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:18:08,388 INFO L480 AbstractCegarLoop]: Abstraction has 3124 states and 15587 transitions. [2021-03-11 14:18:08,388 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:08,388 INFO L276 IsEmpty]: Start isEmpty. Operand 3124 states and 15587 transitions. [2021-03-11 14:18:08,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:18:08,393 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:18:08,393 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:18:08,393 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable92 [2021-03-11 14:18:08,393 INFO L428 AbstractCegarLoop]: === Iteration 94 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:18:08,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:18:08,394 INFO L82 PathProgramCache]: Analyzing trace with hash -467025037, now seen corresponding path program 85 times [2021-03-11 14:18:08,394 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:18:08,394 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [246421101] [2021-03-11 14:18:08,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:18:08,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:18:08,406 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:18:08,407 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:18:08,407 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:18:08,407 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:18:08,411 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:18:08,411 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:18:08,417 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:18:08,417 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:18:08,427 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:18:08,427 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:18:08,440 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:18:08,440 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:18:08,458 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:18:08,458 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:18:08,479 INFO L142 QuantifierPusher]: treesize reduction 54, result has 50.5 percent of original size [2021-03-11 14:18:08,480 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-11 14:18:08,507 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:18:08,507 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:18:08,539 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:18:08,540 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:18:08,577 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:18:08,578 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:18:08,612 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:18:08,612 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [246421101] [2021-03-11 14:18:08,612 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:18:08,612 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:18:08,612 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [711392423] [2021-03-11 14:18:08,612 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:18:08,613 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:18:08,613 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:18:08,613 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:18:08,613 INFO L87 Difference]: Start difference. First operand 3124 states and 15587 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:08,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:18:08,796 INFO L93 Difference]: Finished difference Result 6107 states and 27079 transitions. [2021-03-11 14:18:08,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:18:08,797 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:18:08,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:18:08,814 INFO L225 Difference]: With dead ends: 6107 [2021-03-11 14:18:08,814 INFO L226 Difference]: Without dead ends: 6087 [2021-03-11 14:18:08,814 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 254.2ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:18:08,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6087 states. [2021-03-11 14:18:08,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6087 to 3146. [2021-03-11 14:18:08,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3146 states, 3145 states have (on average 4.974244833068362) internal successors, (15644), 3145 states have internal predecessors, (15644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:08,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3146 states to 3146 states and 15644 transitions. [2021-03-11 14:18:08,957 INFO L78 Accepts]: Start accepts. Automaton has 3146 states and 15644 transitions. Word has length 31 [2021-03-11 14:18:08,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:18:08,958 INFO L480 AbstractCegarLoop]: Abstraction has 3146 states and 15644 transitions. [2021-03-11 14:18:08,958 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:08,958 INFO L276 IsEmpty]: Start isEmpty. Operand 3146 states and 15644 transitions. [2021-03-11 14:18:08,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:18:08,962 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:18:08,962 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:18:08,963 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable93 [2021-03-11 14:18:08,963 INFO L428 AbstractCegarLoop]: === Iteration 95 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:18:08,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:18:08,963 INFO L82 PathProgramCache]: Analyzing trace with hash 870542177, now seen corresponding path program 86 times [2021-03-11 14:18:08,963 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:18:08,963 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [68370749] [2021-03-11 14:18:08,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:18:08,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:18:08,977 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:18:08,977 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:18:08,977 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:18:08,978 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:18:08,981 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:18:08,981 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:18:08,988 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:18:08,988 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:18:08,997 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:18:08,997 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:18:09,010 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:18:09,011 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:18:09,028 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:18:09,028 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:18:09,049 INFO L142 QuantifierPusher]: treesize reduction 54, result has 50.5 percent of original size [2021-03-11 14:18:09,050 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-11 14:18:09,076 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:18:09,077 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:18:09,108 INFO L142 QuantifierPusher]: treesize reduction 72, result has 49.7 percent of original size [2021-03-11 14:18:09,109 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-03-11 14:18:09,146 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:18:09,147 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:18:09,181 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:18:09,181 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [68370749] [2021-03-11 14:18:09,181 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:18:09,181 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:18:09,181 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1411314823] [2021-03-11 14:18:09,181 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:18:09,181 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:18:09,181 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:18:09,181 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:18:09,181 INFO L87 Difference]: Start difference. First operand 3146 states and 15644 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:09,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:18:09,306 INFO L93 Difference]: Finished difference Result 6109 states and 27073 transitions. [2021-03-11 14:18:09,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:18:09,306 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:18:09,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:18:09,319 INFO L225 Difference]: With dead ends: 6109 [2021-03-11 14:18:09,319 INFO L226 Difference]: Without dead ends: 6076 [2021-03-11 14:18:09,319 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 222.5ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:18:09,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6076 states. [2021-03-11 14:18:09,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6076 to 3135. [2021-03-11 14:18:09,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3135 states, 3134 states have (on average 4.982131461391194) internal successors, (15614), 3134 states have internal predecessors, (15614), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:09,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3135 states to 3135 states and 15614 transitions. [2021-03-11 14:18:09,456 INFO L78 Accepts]: Start accepts. Automaton has 3135 states and 15614 transitions. Word has length 31 [2021-03-11 14:18:09,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:18:09,456 INFO L480 AbstractCegarLoop]: Abstraction has 3135 states and 15614 transitions. [2021-03-11 14:18:09,456 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:09,456 INFO L276 IsEmpty]: Start isEmpty. Operand 3135 states and 15614 transitions. [2021-03-11 14:18:09,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:18:09,461 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:18:09,461 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:18:09,461 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable94 [2021-03-11 14:18:09,461 INFO L428 AbstractCegarLoop]: === Iteration 96 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:18:09,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:18:09,461 INFO L82 PathProgramCache]: Analyzing trace with hash -679180655, now seen corresponding path program 87 times [2021-03-11 14:18:09,461 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:18:09,461 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1199497176] [2021-03-11 14:18:09,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:18:09,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:18:09,474 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:18:09,475 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:18:09,475 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:18:09,475 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:18:09,479 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:18:09,479 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:18:09,485 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:18:09,485 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:18:09,495 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:18:09,495 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:18:09,508 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:18:09,509 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:18:09,526 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:18:09,527 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:18:09,548 INFO L142 QuantifierPusher]: treesize reduction 54, result has 50.5 percent of original size [2021-03-11 14:18:09,548 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-11 14:18:09,575 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:18:09,575 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:18:09,606 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:18:09,607 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:18:09,644 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:18:09,645 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:18:09,678 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:18:09,678 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1199497176] [2021-03-11 14:18:09,678 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:18:09,678 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:18:09,679 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1459163561] [2021-03-11 14:18:09,679 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:18:09,679 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:18:09,679 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:18:09,679 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:18:09,679 INFO L87 Difference]: Start difference. First operand 3135 states and 15614 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:09,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:18:09,854 INFO L93 Difference]: Finished difference Result 6101 states and 27058 transitions. [2021-03-11 14:18:09,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:18:09,854 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:18:09,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:18:09,867 INFO L225 Difference]: With dead ends: 6101 [2021-03-11 14:18:09,868 INFO L226 Difference]: Without dead ends: 6081 [2021-03-11 14:18:09,868 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 252.6ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:18:09,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6081 states. [2021-03-11 14:18:09,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6081 to 3143. [2021-03-11 14:18:09,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3143 states, 3142 states have (on average 4.97422024188415) internal successors, (15629), 3142 states have internal predecessors, (15629), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:10,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3143 states to 3143 states and 15629 transitions. [2021-03-11 14:18:10,005 INFO L78 Accepts]: Start accepts. Automaton has 3143 states and 15629 transitions. Word has length 31 [2021-03-11 14:18:10,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:18:10,005 INFO L480 AbstractCegarLoop]: Abstraction has 3143 states and 15629 transitions. [2021-03-11 14:18:10,005 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:10,005 INFO L276 IsEmpty]: Start isEmpty. Operand 3143 states and 15629 transitions. [2021-03-11 14:18:10,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:18:10,009 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:18:10,010 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:18:10,010 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable95 [2021-03-11 14:18:10,010 INFO L428 AbstractCegarLoop]: === Iteration 97 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:18:10,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:18:10,010 INFO L82 PathProgramCache]: Analyzing trace with hash 235900833, now seen corresponding path program 88 times [2021-03-11 14:18:10,010 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:18:10,010 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2134515781] [2021-03-11 14:18:10,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:18:10,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:18:10,022 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:18:10,023 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:18:10,023 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:18:10,023 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:18:10,027 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:18:10,027 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:18:10,033 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:18:10,033 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:18:10,043 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:18:10,043 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:18:10,057 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:18:10,057 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:18:10,074 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:18:10,075 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:18:10,096 INFO L142 QuantifierPusher]: treesize reduction 54, result has 50.5 percent of original size [2021-03-11 14:18:10,096 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-11 14:18:10,123 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:18:10,123 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:18:10,155 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:18:10,155 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:18:10,191 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:18:10,192 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:18:10,225 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:18:10,225 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2134515781] [2021-03-11 14:18:10,225 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:18:10,225 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:18:10,225 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1456254362] [2021-03-11 14:18:10,226 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:18:10,226 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:18:10,226 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:18:10,226 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:18:10,226 INFO L87 Difference]: Start difference. First operand 3143 states and 15629 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:10,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:18:10,413 INFO L93 Difference]: Finished difference Result 6100 states and 27048 transitions. [2021-03-11 14:18:10,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:18:10,413 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:18:10,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:18:10,426 INFO L225 Difference]: With dead ends: 6100 [2021-03-11 14:18:10,427 INFO L226 Difference]: Without dead ends: 6073 [2021-03-11 14:18:10,427 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 250.7ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:18:10,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6073 states. [2021-03-11 14:18:10,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6073 to 3135. [2021-03-11 14:18:10,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3135 states, 3134 states have (on average 4.979578813018507) internal successors, (15606), 3134 states have internal predecessors, (15606), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:10,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3135 states to 3135 states and 15606 transitions. [2021-03-11 14:18:10,564 INFO L78 Accepts]: Start accepts. Automaton has 3135 states and 15606 transitions. Word has length 31 [2021-03-11 14:18:10,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:18:10,564 INFO L480 AbstractCegarLoop]: Abstraction has 3135 states and 15606 transitions. [2021-03-11 14:18:10,564 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:10,564 INFO L276 IsEmpty]: Start isEmpty. Operand 3135 states and 15606 transitions. [2021-03-11 14:18:10,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:18:10,569 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:18:10,569 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:18:10,569 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable96 [2021-03-11 14:18:10,569 INFO L428 AbstractCegarLoop]: === Iteration 98 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:18:10,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:18:10,570 INFO L82 PathProgramCache]: Analyzing trace with hash -826702767, now seen corresponding path program 89 times [2021-03-11 14:18:10,570 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:18:10,570 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [109893635] [2021-03-11 14:18:10,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:18:10,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:18:10,582 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:18:10,583 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:18:10,583 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:18:10,583 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:18:10,587 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:18:10,587 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:18:10,593 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:18:10,593 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:18:10,603 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:18:10,603 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:18:10,616 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:18:10,616 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:18:10,636 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:18:10,636 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:18:10,660 INFO L142 QuantifierPusher]: treesize reduction 54, result has 50.5 percent of original size [2021-03-11 14:18:10,661 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-11 14:18:10,693 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:18:10,693 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:18:10,726 INFO L142 QuantifierPusher]: treesize reduction 72, result has 49.7 percent of original size [2021-03-11 14:18:10,727 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-03-11 14:18:10,765 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:18:10,765 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:18:10,799 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:18:10,799 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [109893635] [2021-03-11 14:18:10,799 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:18:10,799 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:18:10,799 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914538867] [2021-03-11 14:18:10,799 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:18:10,799 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:18:10,799 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:18:10,799 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:18:10,799 INFO L87 Difference]: Start difference. First operand 3135 states and 15606 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:10,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:18:10,957 INFO L93 Difference]: Finished difference Result 6106 states and 27058 transitions. [2021-03-11 14:18:10,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:18:10,957 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:18:10,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:18:10,970 INFO L225 Difference]: With dead ends: 6106 [2021-03-11 14:18:10,970 INFO L226 Difference]: Without dead ends: 6084 [2021-03-11 14:18:10,970 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 232.8ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:18:11,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6084 states. [2021-03-11 14:18:11,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6084 to 3144. [2021-03-11 14:18:11,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3144 states, 3143 states have (on average 4.970410435889278) internal successors, (15622), 3143 states have internal predecessors, (15622), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:11,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3144 states to 3144 states and 15622 transitions. [2021-03-11 14:18:11,108 INFO L78 Accepts]: Start accepts. Automaton has 3144 states and 15622 transitions. Word has length 31 [2021-03-11 14:18:11,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:18:11,108 INFO L480 AbstractCegarLoop]: Abstraction has 3144 states and 15622 transitions. [2021-03-11 14:18:11,108 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:11,108 INFO L276 IsEmpty]: Start isEmpty. Operand 3144 states and 15622 transitions. [2021-03-11 14:18:11,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:18:11,113 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:18:11,113 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:18:11,113 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable97 [2021-03-11 14:18:11,113 INFO L428 AbstractCegarLoop]: === Iteration 99 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:18:11,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:18:11,113 INFO L82 PathProgramCache]: Analyzing trace with hash -1249188493, now seen corresponding path program 90 times [2021-03-11 14:18:11,113 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:18:11,113 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1782750678] [2021-03-11 14:18:11,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:18:11,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:18:11,126 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:18:11,126 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:18:11,127 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:18:11,127 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:18:11,130 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:18:11,131 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:18:11,137 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:18:11,137 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:18:11,147 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:18:11,147 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:18:11,160 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:18:11,160 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:18:11,177 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:18:11,178 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:18:11,199 INFO L142 QuantifierPusher]: treesize reduction 54, result has 50.5 percent of original size [2021-03-11 14:18:11,199 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-11 14:18:11,226 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:18:11,226 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:18:11,257 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:18:11,258 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:18:11,294 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:18:11,295 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:18:11,330 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:18:11,330 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1782750678] [2021-03-11 14:18:11,330 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:18:11,331 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:18:11,331 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [756076105] [2021-03-11 14:18:11,331 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:18:11,331 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:18:11,331 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:18:11,331 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:18:11,331 INFO L87 Difference]: Start difference. First operand 3144 states and 15622 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:11,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:18:11,491 INFO L93 Difference]: Finished difference Result 6103 states and 27044 transitions. [2021-03-11 14:18:11,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:18:11,491 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:18:11,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:18:11,504 INFO L225 Difference]: With dead ends: 6103 [2021-03-11 14:18:11,504 INFO L226 Difference]: Without dead ends: 6064 [2021-03-11 14:18:11,504 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 252.8ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:18:11,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6064 states. [2021-03-11 14:18:11,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6064 to 3124. [2021-03-11 14:18:11,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3124 states, 3123 states have (on average 4.98815241754723) internal successors, (15578), 3123 states have internal predecessors, (15578), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:11,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3124 states to 3124 states and 15578 transitions. [2021-03-11 14:18:11,644 INFO L78 Accepts]: Start accepts. Automaton has 3124 states and 15578 transitions. Word has length 31 [2021-03-11 14:18:11,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:18:11,644 INFO L480 AbstractCegarLoop]: Abstraction has 3124 states and 15578 transitions. [2021-03-11 14:18:11,644 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:11,644 INFO L276 IsEmpty]: Start isEmpty. Operand 3124 states and 15578 transitions. [2021-03-11 14:18:11,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:18:11,649 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:18:11,649 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:18:11,649 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable98 [2021-03-11 14:18:11,649 INFO L428 AbstractCegarLoop]: === Iteration 100 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:18:11,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:18:11,650 INFO L82 PathProgramCache]: Analyzing trace with hash -2005054153, now seen corresponding path program 91 times [2021-03-11 14:18:11,650 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:18:11,650 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [120523243] [2021-03-11 14:18:11,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:18:11,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:18:11,666 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:18:11,666 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:18:11,667 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:18:11,667 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:18:11,670 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:18:11,671 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:18:11,677 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:18:11,677 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:18:11,687 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:18:11,687 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:18:11,701 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:18:11,701 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:18:11,718 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:18:11,719 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:18:11,742 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:18:11,743 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:18:11,768 INFO L142 QuantifierPusher]: treesize reduction 54, result has 55.4 percent of original size [2021-03-11 14:18:11,769 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-03-11 14:18:11,821 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:18:11,822 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:18:11,859 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:18:11,860 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:18:11,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:18:11,894 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [120523243] [2021-03-11 14:18:11,894 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:18:11,894 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:18:11,894 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [278380769] [2021-03-11 14:18:11,894 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:18:11,894 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:18:11,895 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:18:11,895 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:18:11,895 INFO L87 Difference]: Start difference. First operand 3124 states and 15578 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:12,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:18:12,053 INFO L93 Difference]: Finished difference Result 6084 states and 27015 transitions. [2021-03-11 14:18:12,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:18:12,054 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:18:12,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:18:12,067 INFO L225 Difference]: With dead ends: 6084 [2021-03-11 14:18:12,067 INFO L226 Difference]: Without dead ends: 6067 [2021-03-11 14:18:12,067 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 272.0ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:18:12,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6067 states. [2021-03-11 14:18:12,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6067 to 3138. [2021-03-11 14:18:12,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3138 states, 3137 states have (on average 4.978323238763149) internal successors, (15617), 3137 states have internal predecessors, (15617), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:12,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3138 states to 3138 states and 15617 transitions. [2021-03-11 14:18:12,206 INFO L78 Accepts]: Start accepts. Automaton has 3138 states and 15617 transitions. Word has length 31 [2021-03-11 14:18:12,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:18:12,206 INFO L480 AbstractCegarLoop]: Abstraction has 3138 states and 15617 transitions. [2021-03-11 14:18:12,206 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:12,206 INFO L276 IsEmpty]: Start isEmpty. Operand 3138 states and 15617 transitions. [2021-03-11 14:18:12,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:18:12,211 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:18:12,211 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:18:12,211 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable99 [2021-03-11 14:18:12,211 INFO L428 AbstractCegarLoop]: === Iteration 101 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:18:12,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:18:12,211 INFO L82 PathProgramCache]: Analyzing trace with hash 177484513, now seen corresponding path program 92 times [2021-03-11 14:18:12,211 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:18:12,211 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [503527838] [2021-03-11 14:18:12,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:18:12,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:18:12,224 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:18:12,224 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:18:12,225 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:18:12,225 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:18:12,228 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:18:12,229 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:18:12,235 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:18:12,235 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:18:12,245 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:18:12,245 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:18:12,258 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:18:12,259 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:18:12,276 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:18:12,276 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:18:12,297 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:18:12,298 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:18:12,323 INFO L142 QuantifierPusher]: treesize reduction 54, result has 55.4 percent of original size [2021-03-11 14:18:12,323 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-03-11 14:18:12,376 INFO L142 QuantifierPusher]: treesize reduction 72, result has 49.7 percent of original size [2021-03-11 14:18:12,377 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-03-11 14:18:12,415 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:18:12,415 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:18:12,450 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:18:12,450 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [503527838] [2021-03-11 14:18:12,450 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:18:12,450 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:18:12,450 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1440628172] [2021-03-11 14:18:12,450 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:18:12,450 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:18:12,450 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:18:12,450 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:18:12,451 INFO L87 Difference]: Start difference. First operand 3138 states and 15617 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:12,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:18:12,595 INFO L93 Difference]: Finished difference Result 6089 states and 27018 transitions. [2021-03-11 14:18:12,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:18:12,596 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:18:12,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:18:12,609 INFO L225 Difference]: With dead ends: 6089 [2021-03-11 14:18:12,609 INFO L226 Difference]: Without dead ends: 6060 [2021-03-11 14:18:12,610 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 245.5ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:18:12,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6060 states. [2021-03-11 14:18:12,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6060 to 3131. [2021-03-11 14:18:12,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3131 states, 3130 states have (on average 4.9830670926517575) internal successors, (15597), 3130 states have internal predecessors, (15597), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:12,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3131 states to 3131 states and 15597 transitions. [2021-03-11 14:18:12,750 INFO L78 Accepts]: Start accepts. Automaton has 3131 states and 15597 transitions. Word has length 31 [2021-03-11 14:18:12,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:18:12,750 INFO L480 AbstractCegarLoop]: Abstraction has 3131 states and 15597 transitions. [2021-03-11 14:18:12,750 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:12,750 INFO L276 IsEmpty]: Start isEmpty. Operand 3131 states and 15597 transitions. [2021-03-11 14:18:12,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:18:12,755 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:18:12,755 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:18:12,755 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable100 [2021-03-11 14:18:12,755 INFO L428 AbstractCegarLoop]: === Iteration 102 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:18:12,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:18:12,756 INFO L82 PathProgramCache]: Analyzing trace with hash 2077757525, now seen corresponding path program 93 times [2021-03-11 14:18:12,756 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:18:12,756 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [425096776] [2021-03-11 14:18:12,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:18:12,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:18:12,768 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:18:12,769 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:18:12,769 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:18:12,769 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:18:12,773 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:18:12,773 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:18:12,780 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:18:12,780 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:18:12,790 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:18:12,790 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:18:12,803 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:18:12,804 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:18:12,821 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:18:12,822 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:18:12,843 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:18:12,844 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:18:12,869 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:18:12,870 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:18:12,901 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:18:12,901 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:18:12,939 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:18:12,939 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:18:12,975 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:18:12,975 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [425096776] [2021-03-11 14:18:12,975 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:18:12,975 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:18:12,975 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055420082] [2021-03-11 14:18:12,975 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:18:12,975 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:18:12,975 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:18:12,975 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:18:12,976 INFO L87 Difference]: Start difference. First operand 3131 states and 15597 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:13,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:18:13,134 INFO L93 Difference]: Finished difference Result 6080 states and 27001 transitions. [2021-03-11 14:18:13,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:18:13,134 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:18:13,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:18:13,148 INFO L225 Difference]: With dead ends: 6080 [2021-03-11 14:18:13,148 INFO L226 Difference]: Without dead ends: 6063 [2021-03-11 14:18:13,148 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 251.8ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:18:13,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6063 states. [2021-03-11 14:18:13,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6063 to 3137. [2021-03-11 14:18:13,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3137 states, 3136 states have (on average 4.9770408163265305) internal successors, (15608), 3136 states have internal predecessors, (15608), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:13,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3137 states to 3137 states and 15608 transitions. [2021-03-11 14:18:13,290 INFO L78 Accepts]: Start accepts. Automaton has 3137 states and 15608 transitions. Word has length 31 [2021-03-11 14:18:13,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:18:13,290 INFO L480 AbstractCegarLoop]: Abstraction has 3137 states and 15608 transitions. [2021-03-11 14:18:13,290 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:13,290 INFO L276 IsEmpty]: Start isEmpty. Operand 3137 states and 15608 transitions. [2021-03-11 14:18:13,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:18:13,295 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:18:13,295 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:18:13,295 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable101 [2021-03-11 14:18:13,295 INFO L428 AbstractCegarLoop]: === Iteration 103 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:18:13,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:18:13,295 INFO L82 PathProgramCache]: Analyzing trace with hash -457156831, now seen corresponding path program 94 times [2021-03-11 14:18:13,295 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:18:13,295 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [915578694] [2021-03-11 14:18:13,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:18:13,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:18:13,313 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:18:13,314 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:18:13,314 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:18:13,314 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:18:13,318 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:18:13,319 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:18:13,326 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:18:13,326 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:18:13,338 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:18:13,339 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:18:13,358 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:18:13,358 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:18:13,376 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:18:13,377 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:18:13,398 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:18:13,398 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:18:13,424 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:18:13,425 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:18:13,456 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:18:13,456 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:18:13,494 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:18:13,495 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:18:13,530 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:18:13,530 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [915578694] [2021-03-11 14:18:13,530 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:18:13,530 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:18:13,530 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1024930929] [2021-03-11 14:18:13,531 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:18:13,531 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:18:13,531 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:18:13,531 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:18:13,531 INFO L87 Difference]: Start difference. First operand 3137 states and 15608 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:13,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:18:13,715 INFO L93 Difference]: Finished difference Result 6082 states and 26999 transitions. [2021-03-11 14:18:13,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:18:13,716 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:18:13,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:18:13,729 INFO L225 Difference]: With dead ends: 6082 [2021-03-11 14:18:13,729 INFO L226 Difference]: Without dead ends: 6057 [2021-03-11 14:18:13,729 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 264.1ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:18:13,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6057 states. [2021-03-11 14:18:13,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6057 to 3131. [2021-03-11 14:18:13,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3131 states, 3130 states have (on average 4.981150159744409) internal successors, (15591), 3130 states have internal predecessors, (15591), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:13,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3131 states to 3131 states and 15591 transitions. [2021-03-11 14:18:13,868 INFO L78 Accepts]: Start accepts. Automaton has 3131 states and 15591 transitions. Word has length 31 [2021-03-11 14:18:13,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:18:13,868 INFO L480 AbstractCegarLoop]: Abstraction has 3131 states and 15591 transitions. [2021-03-11 14:18:13,868 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:13,868 INFO L276 IsEmpty]: Start isEmpty. Operand 3131 states and 15591 transitions. [2021-03-11 14:18:13,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:18:13,873 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:18:13,873 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:18:13,873 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable102 [2021-03-11 14:18:13,873 INFO L428 AbstractCegarLoop]: === Iteration 104 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:18:13,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:18:13,873 INFO L82 PathProgramCache]: Analyzing trace with hash -1095449195, now seen corresponding path program 95 times [2021-03-11 14:18:13,873 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:18:13,873 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [504483473] [2021-03-11 14:18:13,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:18:13,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:18:13,887 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:18:13,888 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:18:13,888 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:18:13,888 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:18:13,892 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:18:13,892 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:18:13,899 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:18:13,900 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:18:13,911 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:18:13,911 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:18:13,925 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:18:13,926 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:18:13,943 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:18:13,944 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:18:13,966 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:18:13,966 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:18:13,992 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:18:13,993 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:18:14,025 INFO L142 QuantifierPusher]: treesize reduction 72, result has 49.7 percent of original size [2021-03-11 14:18:14,025 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-03-11 14:18:14,064 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:18:14,064 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:18:14,103 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:18:14,103 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [504483473] [2021-03-11 14:18:14,103 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:18:14,103 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:18:14,103 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1087615324] [2021-03-11 14:18:14,103 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:18:14,103 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:18:14,104 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:18:14,104 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:18:14,104 INFO L87 Difference]: Start difference. First operand 3131 states and 15591 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:14,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:18:14,267 INFO L93 Difference]: Finished difference Result 6093 states and 27021 transitions. [2021-03-11 14:18:14,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:18:14,268 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:18:14,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:18:14,280 INFO L225 Difference]: With dead ends: 6093 [2021-03-11 14:18:14,280 INFO L226 Difference]: Without dead ends: 6071 [2021-03-11 14:18:14,281 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 234.0ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:18:14,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6071 states. [2021-03-11 14:18:14,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6071 to 3140. [2021-03-11 14:18:14,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3140 states, 3139 states have (on average 4.97196559413826) internal successors, (15607), 3139 states have internal predecessors, (15607), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:14,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3140 states to 3140 states and 15607 transitions. [2021-03-11 14:18:14,415 INFO L78 Accepts]: Start accepts. Automaton has 3140 states and 15607 transitions. Word has length 31 [2021-03-11 14:18:14,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:18:14,415 INFO L480 AbstractCegarLoop]: Abstraction has 3140 states and 15607 transitions. [2021-03-11 14:18:14,415 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:14,416 INFO L276 IsEmpty]: Start isEmpty. Operand 3140 states and 15607 transitions. [2021-03-11 14:18:14,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:18:14,420 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:18:14,420 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:18:14,420 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable103 [2021-03-11 14:18:14,420 INFO L428 AbstractCegarLoop]: === Iteration 105 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:18:14,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:18:14,421 INFO L82 PathProgramCache]: Analyzing trace with hash -1517934921, now seen corresponding path program 96 times [2021-03-11 14:18:14,421 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:18:14,421 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [667503710] [2021-03-11 14:18:14,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:18:14,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:18:14,434 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:18:14,435 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:18:14,435 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:18:14,435 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:18:14,439 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:18:14,439 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:18:14,445 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:18:14,446 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:18:14,456 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:18:14,456 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:18:14,470 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:18:14,470 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:18:14,488 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:18:14,488 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:18:14,510 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:18:14,510 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:18:14,536 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:18:14,536 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:18:14,570 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:18:14,570 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:18:14,608 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:18:14,609 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:18:14,644 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:18:14,644 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [667503710] [2021-03-11 14:18:14,644 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:18:14,644 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:18:14,645 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [982516478] [2021-03-11 14:18:14,645 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:18:14,645 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:18:14,645 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:18:14,645 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:18:14,645 INFO L87 Difference]: Start difference. First operand 3140 states and 15607 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:14,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:18:14,876 INFO L93 Difference]: Finished difference Result 6090 states and 27007 transitions. [2021-03-11 14:18:14,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:18:14,876 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:18:14,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:18:14,889 INFO L225 Difference]: With dead ends: 6090 [2021-03-11 14:18:14,889 INFO L226 Difference]: Without dead ends: 6046 [2021-03-11 14:18:14,889 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 260.3ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:18:14,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6046 states. [2021-03-11 14:18:15,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6046 to 3115. [2021-03-11 14:18:15,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3115 states, 3114 states have (on average 4.994861913937059) internal successors, (15554), 3114 states have internal predecessors, (15554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:15,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3115 states to 3115 states and 15554 transitions. [2021-03-11 14:18:15,024 INFO L78 Accepts]: Start accepts. Automaton has 3115 states and 15554 transitions. Word has length 31 [2021-03-11 14:18:15,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:18:15,024 INFO L480 AbstractCegarLoop]: Abstraction has 3115 states and 15554 transitions. [2021-03-11 14:18:15,024 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:15,024 INFO L276 IsEmpty]: Start isEmpty. Operand 3115 states and 15554 transitions. [2021-03-11 14:18:15,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:18:15,029 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:18:15,029 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:18:15,029 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable104 [2021-03-11 14:18:15,029 INFO L428 AbstractCegarLoop]: === Iteration 106 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:18:15,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:18:15,030 INFO L82 PathProgramCache]: Analyzing trace with hash -313503795, now seen corresponding path program 97 times [2021-03-11 14:18:15,030 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:18:15,030 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [681954378] [2021-03-11 14:18:15,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:18:15,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:18:15,047 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:18:15,048 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:18:15,048 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:18:15,048 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:18:15,052 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:18:15,053 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:18:15,060 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:18:15,060 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:18:15,071 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:18:15,072 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:18:15,086 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:18:15,090 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:18:15,108 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:18:15,109 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:18:15,131 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:18:15,131 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:18:15,177 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:18:15,178 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:18:15,210 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:18:15,211 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:18:15,248 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:18:15,249 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:18:15,284 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:18:15,284 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [681954378] [2021-03-11 14:18:15,284 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:18:15,284 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:18:15,284 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [521606261] [2021-03-11 14:18:15,284 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:18:15,284 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:18:15,285 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:18:15,285 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:18:15,285 INFO L87 Difference]: Start difference. First operand 3115 states and 15554 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:15,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:18:15,505 INFO L93 Difference]: Finished difference Result 6065 states and 26987 transitions. [2021-03-11 14:18:15,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:18:15,505 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:18:15,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:18:15,518 INFO L225 Difference]: With dead ends: 6065 [2021-03-11 14:18:15,518 INFO L226 Difference]: Without dead ends: 6048 [2021-03-11 14:18:15,518 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 276.3ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:18:15,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6048 states. [2021-03-11 14:18:15,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6048 to 3135. [2021-03-11 14:18:15,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3135 states, 3134 states have (on average 4.985322271857052) internal successors, (15624), 3134 states have internal predecessors, (15624), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:15,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3135 states to 3135 states and 15624 transitions. [2021-03-11 14:18:15,655 INFO L78 Accepts]: Start accepts. Automaton has 3135 states and 15624 transitions. Word has length 31 [2021-03-11 14:18:15,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:18:15,655 INFO L480 AbstractCegarLoop]: Abstraction has 3135 states and 15624 transitions. [2021-03-11 14:18:15,655 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:15,655 INFO L276 IsEmpty]: Start isEmpty. Operand 3135 states and 15624 transitions. [2021-03-11 14:18:15,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:18:15,659 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:18:15,659 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:18:15,660 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable105 [2021-03-11 14:18:15,660 INFO L428 AbstractCegarLoop]: === Iteration 107 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:18:15,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:18:15,660 INFO L82 PathProgramCache]: Analyzing trace with hash -1158475247, now seen corresponding path program 98 times [2021-03-11 14:18:15,660 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:18:15,660 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [329312517] [2021-03-11 14:18:15,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:18:15,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:18:15,673 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:18:15,685 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:18:15,685 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:18:15,686 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:18:15,690 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:18:15,690 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:18:15,697 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:18:15,697 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:18:15,708 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:18:15,708 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:18:15,722 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:18:15,722 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:18:15,740 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:18:15,740 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:18:15,762 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:18:15,762 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:18:15,807 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:18:15,807 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:18:15,839 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:18:15,839 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:18:15,876 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:18:15,877 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:18:15,915 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:18:15,915 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [329312517] [2021-03-11 14:18:15,915 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:18:15,915 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:18:15,915 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1832760929] [2021-03-11 14:18:15,915 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:18:15,915 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:18:15,916 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:18:15,916 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:18:15,916 INFO L87 Difference]: Start difference. First operand 3135 states and 15624 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:16,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:18:16,140 INFO L93 Difference]: Finished difference Result 6066 states and 26983 transitions. [2021-03-11 14:18:16,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:18:16,141 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:18:16,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:18:16,154 INFO L225 Difference]: With dead ends: 6066 [2021-03-11 14:18:16,154 INFO L226 Difference]: Without dead ends: 6042 [2021-03-11 14:18:16,155 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 275.7ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:18:16,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6042 states. [2021-03-11 14:18:16,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6042 to 3129. [2021-03-11 14:18:16,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3129 states, 3128 states have (on average 4.989450127877238) internal successors, (15607), 3128 states have internal predecessors, (15607), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:16,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3129 states to 3129 states and 15607 transitions. [2021-03-11 14:18:16,294 INFO L78 Accepts]: Start accepts. Automaton has 3129 states and 15607 transitions. Word has length 31 [2021-03-11 14:18:16,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:18:16,294 INFO L480 AbstractCegarLoop]: Abstraction has 3129 states and 15607 transitions. [2021-03-11 14:18:16,294 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:16,294 INFO L276 IsEmpty]: Start isEmpty. Operand 3129 states and 15607 transitions. [2021-03-11 14:18:16,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:18:16,299 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:18:16,299 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:18:16,299 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable106 [2021-03-11 14:18:16,300 INFO L428 AbstractCegarLoop]: === Iteration 108 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:18:16,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:18:16,300 INFO L82 PathProgramCache]: Analyzing trace with hash -949970649, now seen corresponding path program 99 times [2021-03-11 14:18:16,300 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:18:16,300 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1180967682] [2021-03-11 14:18:16,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:18:16,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:18:16,317 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:18:16,318 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:18:16,318 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:18:16,318 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:18:16,322 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:18:16,322 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:18:16,329 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:18:16,330 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:18:16,340 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:18:16,340 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:18:16,354 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:18:16,354 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:18:16,373 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:18:16,373 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:18:16,396 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:18:16,396 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:18:16,442 INFO L142 QuantifierPusher]: treesize reduction 54, result has 55.4 percent of original size [2021-03-11 14:18:16,442 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-03-11 14:18:16,497 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:18:16,497 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:18:16,536 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:18:16,536 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:18:16,571 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:18:16,571 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1180967682] [2021-03-11 14:18:16,571 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:18:16,571 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:18:16,571 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1460777832] [2021-03-11 14:18:16,572 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:18:16,572 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:18:16,572 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:18:16,572 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:18:16,572 INFO L87 Difference]: Start difference. First operand 3129 states and 15607 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:16,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:18:16,792 INFO L93 Difference]: Finished difference Result 6070 states and 26990 transitions. [2021-03-11 14:18:16,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:18:16,793 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:18:16,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:18:16,805 INFO L225 Difference]: With dead ends: 6070 [2021-03-11 14:18:16,805 INFO L226 Difference]: Without dead ends: 6053 [2021-03-11 14:18:16,805 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 299.4ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:18:16,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6053 states. [2021-03-11 14:18:16,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6053 to 3136. [2021-03-11 14:18:16,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3136 states, 3135 states have (on average 4.982456140350878) internal successors, (15620), 3135 states have internal predecessors, (15620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:16,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3136 states to 3136 states and 15620 transitions. [2021-03-11 14:18:16,955 INFO L78 Accepts]: Start accepts. Automaton has 3136 states and 15620 transitions. Word has length 31 [2021-03-11 14:18:16,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:18:16,955 INFO L480 AbstractCegarLoop]: Abstraction has 3136 states and 15620 transitions. [2021-03-11 14:18:16,955 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:16,955 INFO L276 IsEmpty]: Start isEmpty. Operand 3136 states and 15620 transitions. [2021-03-11 14:18:16,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:18:16,962 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:18:16,962 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:18:16,962 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable107 [2021-03-11 14:18:16,963 INFO L428 AbstractCegarLoop]: === Iteration 109 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:18:16,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:18:16,963 INFO L82 PathProgramCache]: Analyzing trace with hash 1232568017, now seen corresponding path program 100 times [2021-03-11 14:18:16,963 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:18:16,963 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1118737460] [2021-03-11 14:18:16,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:18:16,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:18:16,979 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:18:16,979 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:18:16,979 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:18:16,980 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:18:16,983 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:18:16,984 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:18:16,990 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:18:16,990 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:18:17,000 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:18:17,001 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:18:17,014 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:18:17,015 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:18:17,033 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:18:17,033 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:18:17,063 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:18:17,063 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:18:17,110 INFO L142 QuantifierPusher]: treesize reduction 54, result has 55.4 percent of original size [2021-03-11 14:18:17,111 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-03-11 14:18:17,165 INFO L142 QuantifierPusher]: treesize reduction 72, result has 49.7 percent of original size [2021-03-11 14:18:17,166 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-03-11 14:18:17,206 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:18:17,206 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:18:17,242 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:18:17,242 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1118737460] [2021-03-11 14:18:17,242 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:18:17,242 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:18:17,242 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [872987135] [2021-03-11 14:18:17,242 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:18:17,242 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:18:17,243 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:18:17,243 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:18:17,243 INFO L87 Difference]: Start difference. First operand 3136 states and 15620 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:17,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:18:17,446 INFO L93 Difference]: Finished difference Result 6075 states and 26993 transitions. [2021-03-11 14:18:17,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:18:17,447 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:18:17,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:18:17,459 INFO L225 Difference]: With dead ends: 6075 [2021-03-11 14:18:17,460 INFO L226 Difference]: Without dead ends: 6046 [2021-03-11 14:18:17,460 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 282.5ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:18:17,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6046 states. [2021-03-11 14:18:17,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6046 to 3129. [2021-03-11 14:18:17,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3129 states, 3128 states have (on average 4.987212276214834) internal successors, (15600), 3128 states have internal predecessors, (15600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:17,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3129 states to 3129 states and 15600 transitions. [2021-03-11 14:18:17,596 INFO L78 Accepts]: Start accepts. Automaton has 3129 states and 15600 transitions. Word has length 31 [2021-03-11 14:18:17,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:18:17,596 INFO L480 AbstractCegarLoop]: Abstraction has 3129 states and 15600 transitions. [2021-03-11 14:18:17,596 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:17,596 INFO L276 IsEmpty]: Start isEmpty. Operand 3129 states and 15600 transitions. [2021-03-11 14:18:17,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:18:17,600 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:18:17,601 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:18:17,601 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable108 [2021-03-11 14:18:17,601 INFO L428 AbstractCegarLoop]: === Iteration 110 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:18:17,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:18:17,601 INFO L82 PathProgramCache]: Analyzing trace with hash 2075713959, now seen corresponding path program 101 times [2021-03-11 14:18:17,601 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:18:17,601 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [953519050] [2021-03-11 14:18:17,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:18:17,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:18:17,615 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:18:17,615 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:18:17,616 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:18:17,616 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:18:17,619 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:18:17,620 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:18:17,631 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:18:17,632 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:18:17,642 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:18:17,642 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:18:17,656 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:18:17,656 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:18:17,674 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:18:17,674 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:18:17,696 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:18:17,697 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:18:17,743 INFO L142 QuantifierPusher]: treesize reduction 54, result has 55.4 percent of original size [2021-03-11 14:18:17,743 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-03-11 14:18:17,799 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:18:17,800 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:18:17,838 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:18:17,839 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:18:17,875 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:18:17,875 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [953519050] [2021-03-11 14:18:17,875 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:18:17,875 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:18:17,875 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [464934019] [2021-03-11 14:18:17,875 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:18:17,875 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:18:17,876 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:18:17,876 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:18:17,876 INFO L87 Difference]: Start difference. First operand 3129 states and 15600 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:18,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:18:18,022 INFO L93 Difference]: Finished difference Result 6073 states and 26990 transitions. [2021-03-11 14:18:18,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:18:18,023 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:18:18,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:18:18,035 INFO L225 Difference]: With dead ends: 6073 [2021-03-11 14:18:18,035 INFO L226 Difference]: Without dead ends: 6055 [2021-03-11 14:18:18,035 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 305.7ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:18:18,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6055 states. [2021-03-11 14:18:18,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6055 to 3137. [2021-03-11 14:18:18,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3137 states, 3136 states have (on average 4.979272959183674) internal successors, (15615), 3136 states have internal predecessors, (15615), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:18,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3137 states to 3137 states and 15615 transitions. [2021-03-11 14:18:18,175 INFO L78 Accepts]: Start accepts. Automaton has 3137 states and 15615 transitions. Word has length 31 [2021-03-11 14:18:18,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:18:18,175 INFO L480 AbstractCegarLoop]: Abstraction has 3137 states and 15615 transitions. [2021-03-11 14:18:18,175 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:18,175 INFO L276 IsEmpty]: Start isEmpty. Operand 3137 states and 15615 transitions. [2021-03-11 14:18:18,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:18:18,180 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:18:18,180 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:18:18,180 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable109 [2021-03-11 14:18:18,180 INFO L428 AbstractCegarLoop]: === Iteration 111 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:18:18,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:18:18,180 INFO L82 PathProgramCache]: Analyzing trace with hash 808256781, now seen corresponding path program 102 times [2021-03-11 14:18:18,180 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:18:18,180 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [985466928] [2021-03-11 14:18:18,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:18:18,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:18:18,197 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:18:18,198 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:18:18,198 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:18:18,198 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:18:18,202 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:18:18,203 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:18:18,210 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:18:18,210 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:18:18,222 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:18:18,222 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:18:18,239 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:18:18,240 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:18:18,265 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:18:18,266 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:18:18,292 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:18:18,292 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:18:18,338 INFO L142 QuantifierPusher]: treesize reduction 54, result has 55.4 percent of original size [2021-03-11 14:18:18,339 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-03-11 14:18:18,394 INFO L142 QuantifierPusher]: treesize reduction 72, result has 49.7 percent of original size [2021-03-11 14:18:18,395 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-03-11 14:18:18,434 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:18:18,435 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:18:18,470 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:18:18,470 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [985466928] [2021-03-11 14:18:18,470 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:18:18,470 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:18:18,470 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2059067168] [2021-03-11 14:18:18,470 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:18:18,471 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:18:18,471 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:18:18,471 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:18:18,471 INFO L87 Difference]: Start difference. First operand 3137 states and 15615 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:18,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:18:18,609 INFO L93 Difference]: Finished difference Result 6077 states and 26990 transitions. [2021-03-11 14:18:18,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:18:18,609 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:18:18,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:18:18,622 INFO L225 Difference]: With dead ends: 6077 [2021-03-11 14:18:18,622 INFO L226 Difference]: Without dead ends: 6040 [2021-03-11 14:18:18,622 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 292.6ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:18:18,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6040 states. [2021-03-11 14:18:18,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6040 to 3122. [2021-03-11 14:18:18,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3122 states, 3121 states have (on average 4.991989746876001) internal successors, (15580), 3121 states have internal predecessors, (15580), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:18,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3122 states to 3122 states and 15580 transitions. [2021-03-11 14:18:18,758 INFO L78 Accepts]: Start accepts. Automaton has 3122 states and 15580 transitions. Word has length 31 [2021-03-11 14:18:18,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:18:18,758 INFO L480 AbstractCegarLoop]: Abstraction has 3122 states and 15580 transitions. [2021-03-11 14:18:18,758 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:18,758 INFO L276 IsEmpty]: Start isEmpty. Operand 3122 states and 15580 transitions. [2021-03-11 14:18:18,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:18:18,763 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:18:18,763 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:18:18,763 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable110 [2021-03-11 14:18:18,763 INFO L428 AbstractCegarLoop]: === Iteration 112 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:18:18,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:18:18,764 INFO L82 PathProgramCache]: Analyzing trace with hash 1699606639, now seen corresponding path program 103 times [2021-03-11 14:18:18,764 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:18:18,764 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [457008274] [2021-03-11 14:18:18,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:18:18,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:18:18,781 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:18:18,781 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:18:18,782 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:18:18,782 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:18:18,786 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:18:18,786 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:18:18,793 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:18:18,794 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:18:18,804 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:18:18,804 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:18:18,819 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:18:18,819 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:18:18,837 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:18:18,838 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:18:18,859 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:18:18,860 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:18:18,886 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:18:18,886 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:18:18,918 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:18:18,919 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:18:18,957 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:18:18,957 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:18:18,999 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:18:18,999 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [457008274] [2021-03-11 14:18:18,999 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:18:18,999 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:18:18,999 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860702384] [2021-03-11 14:18:18,999 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:18:18,999 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:18:19,000 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:18:19,000 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:18:19,000 INFO L87 Difference]: Start difference. First operand 3122 states and 15580 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:19,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:18:19,177 INFO L93 Difference]: Finished difference Result 6059 states and 26968 transitions. [2021-03-11 14:18:19,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:18:19,178 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:18:19,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:18:19,190 INFO L225 Difference]: With dead ends: 6059 [2021-03-11 14:18:19,191 INFO L226 Difference]: Without dead ends: 6042 [2021-03-11 14:18:19,191 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 264.3ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:18:19,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6042 states. [2021-03-11 14:18:19,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6042 to 3134. [2021-03-11 14:18:19,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3134 states, 3133 states have (on average 4.983721672518353) internal successors, (15614), 3133 states have internal predecessors, (15614), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:19,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3134 states to 3134 states and 15614 transitions. [2021-03-11 14:18:19,326 INFO L78 Accepts]: Start accepts. Automaton has 3134 states and 15614 transitions. Word has length 31 [2021-03-11 14:18:19,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:18:19,326 INFO L480 AbstractCegarLoop]: Abstraction has 3134 states and 15614 transitions. [2021-03-11 14:18:19,326 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:19,326 INFO L276 IsEmpty]: Start isEmpty. Operand 3134 states and 15614 transitions. [2021-03-11 14:18:19,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:18:19,331 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:18:19,331 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:18:19,331 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable111 [2021-03-11 14:18:19,331 INFO L428 AbstractCegarLoop]: === Iteration 113 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:18:19,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:18:19,332 INFO L82 PathProgramCache]: Analyzing trace with hash 854635187, now seen corresponding path program 104 times [2021-03-11 14:18:19,332 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:18:19,332 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [388486146] [2021-03-11 14:18:19,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:18:19,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:18:19,345 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:18:19,345 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:18:19,345 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:18:19,346 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:18:19,349 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:18:19,350 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:18:19,356 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:18:19,357 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:18:19,367 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:18:19,368 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:18:19,382 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:18:19,382 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:18:19,400 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:18:19,400 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:18:19,422 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:18:19,423 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:18:19,450 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:18:19,450 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:18:19,483 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:18:19,483 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:18:19,522 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:18:19,522 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:18:19,557 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:18:19,558 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [388486146] [2021-03-11 14:18:19,558 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:18:19,558 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:18:19,558 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1091777488] [2021-03-11 14:18:19,558 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:18:19,558 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:18:19,558 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:18:19,558 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:18:19,558 INFO L87 Difference]: Start difference. First operand 3134 states and 15614 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:19,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:18:19,710 INFO L93 Difference]: Finished difference Result 6060 states and 26964 transitions. [2021-03-11 14:18:19,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:18:19,710 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:18:19,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:18:19,723 INFO L225 Difference]: With dead ends: 6060 [2021-03-11 14:18:19,723 INFO L226 Difference]: Without dead ends: 6036 [2021-03-11 14:18:19,723 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 259.5ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:18:19,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6036 states. [2021-03-11 14:18:19,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6036 to 3128. [2021-03-11 14:18:19,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3128 states, 3127 states have (on average 4.9878477774224494) internal successors, (15597), 3127 states have internal predecessors, (15597), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:19,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3128 states to 3128 states and 15597 transitions. [2021-03-11 14:18:19,861 INFO L78 Accepts]: Start accepts. Automaton has 3128 states and 15597 transitions. Word has length 31 [2021-03-11 14:18:19,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:18:19,861 INFO L480 AbstractCegarLoop]: Abstraction has 3128 states and 15597 transitions. [2021-03-11 14:18:19,861 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:19,861 INFO L276 IsEmpty]: Start isEmpty. Operand 3128 states and 15597 transitions. [2021-03-11 14:18:19,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:18:19,866 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:18:19,866 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:18:19,866 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable112 [2021-03-11 14:18:19,866 INFO L428 AbstractCegarLoop]: === Iteration 114 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:18:19,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:18:19,866 INFO L82 PathProgramCache]: Analyzing trace with hash 850984167, now seen corresponding path program 105 times [2021-03-11 14:18:19,866 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:18:19,866 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [409565032] [2021-03-11 14:18:19,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:18:19,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:18:19,879 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:18:19,880 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:18:19,880 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:18:19,880 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:18:19,884 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:18:19,884 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:18:19,891 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:18:19,891 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:18:19,904 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:18:19,904 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:18:19,918 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:18:19,918 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:18:19,936 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:18:19,937 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:18:19,959 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:18:19,959 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:18:19,987 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:18:19,987 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:18:20,019 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:18:20,019 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:18:20,059 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:18:20,059 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:18:20,095 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:18:20,095 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [409565032] [2021-03-11 14:18:20,095 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:18:20,095 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:18:20,095 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [346975435] [2021-03-11 14:18:20,095 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:18:20,095 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:18:20,096 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:18:20,096 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:18:20,096 INFO L87 Difference]: Start difference. First operand 3128 states and 15597 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:20,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:18:20,283 INFO L93 Difference]: Finished difference Result 6060 states and 26964 transitions. [2021-03-11 14:18:20,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:18:20,283 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:18:20,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:18:20,296 INFO L225 Difference]: With dead ends: 6060 [2021-03-11 14:18:20,296 INFO L226 Difference]: Without dead ends: 6043 [2021-03-11 14:18:20,296 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 263.0ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:18:20,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6043 states. [2021-03-11 14:18:20,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6043 to 3134. [2021-03-11 14:18:20,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3134 states, 3133 states have (on average 4.981806575167571) internal successors, (15608), 3133 states have internal predecessors, (15608), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:20,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3134 states to 3134 states and 15608 transitions. [2021-03-11 14:18:20,432 INFO L78 Accepts]: Start accepts. Automaton has 3134 states and 15608 transitions. Word has length 31 [2021-03-11 14:18:20,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:18:20,432 INFO L480 AbstractCegarLoop]: Abstraction has 3134 states and 15608 transitions. [2021-03-11 14:18:20,432 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:20,432 INFO L276 IsEmpty]: Start isEmpty. Operand 3134 states and 15608 transitions. [2021-03-11 14:18:20,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:18:20,437 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:18:20,437 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:18:20,437 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable113 [2021-03-11 14:18:20,437 INFO L428 AbstractCegarLoop]: === Iteration 115 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:18:20,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:18:20,437 INFO L82 PathProgramCache]: Analyzing trace with hash -1683930189, now seen corresponding path program 106 times [2021-03-11 14:18:20,437 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:18:20,437 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [722460966] [2021-03-11 14:18:20,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:18:20,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:18:20,452 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:18:20,452 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:18:20,452 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:18:20,453 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:18:20,456 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:18:20,457 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:18:20,463 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:18:20,463 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:18:20,474 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:18:20,474 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:18:20,488 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:18:20,488 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:18:20,506 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:18:20,507 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:18:20,529 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:18:20,529 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:18:20,556 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:18:20,556 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:18:20,588 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:18:20,588 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:18:20,627 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:18:20,628 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:18:20,663 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:18:20,663 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [722460966] [2021-03-11 14:18:20,663 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:18:20,663 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:18:20,663 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1009002600] [2021-03-11 14:18:20,664 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:18:20,664 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:18:20,664 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:18:20,664 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:18:20,664 INFO L87 Difference]: Start difference. First operand 3134 states and 15608 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:20,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:18:20,821 INFO L93 Difference]: Finished difference Result 6062 states and 26962 transitions. [2021-03-11 14:18:20,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:18:20,821 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:18:20,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:18:20,834 INFO L225 Difference]: With dead ends: 6062 [2021-03-11 14:18:20,834 INFO L226 Difference]: Without dead ends: 6037 [2021-03-11 14:18:20,834 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 263.0ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:18:20,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6037 states. [2021-03-11 14:18:20,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6037 to 3128. [2021-03-11 14:18:20,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3128 states, 3127 states have (on average 4.985929005436521) internal successors, (15591), 3127 states have internal predecessors, (15591), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:20,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3128 states to 3128 states and 15591 transitions. [2021-03-11 14:18:20,971 INFO L78 Accepts]: Start accepts. Automaton has 3128 states and 15591 transitions. Word has length 31 [2021-03-11 14:18:20,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:18:20,971 INFO L480 AbstractCegarLoop]: Abstraction has 3128 states and 15591 transitions. [2021-03-11 14:18:20,971 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:20,971 INFO L276 IsEmpty]: Start isEmpty. Operand 3128 states and 15591 transitions. [2021-03-11 14:18:20,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:18:20,976 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:18:20,976 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:18:20,976 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable114 [2021-03-11 14:18:20,976 INFO L428 AbstractCegarLoop]: === Iteration 116 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:18:20,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:18:20,977 INFO L82 PathProgramCache]: Analyzing trace with hash -418298521, now seen corresponding path program 107 times [2021-03-11 14:18:20,977 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:18:20,977 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1829200504] [2021-03-11 14:18:20,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:18:20,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:18:20,991 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:18:20,991 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:18:20,991 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:18:20,992 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:18:20,995 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:18:20,996 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:18:21,003 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:18:21,003 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:18:21,014 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:18:21,014 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:18:21,028 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:18:21,028 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:18:21,047 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:18:21,047 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:18:21,069 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:18:21,070 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:18:21,097 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:18:21,098 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:18:21,131 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:18:21,131 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:18:21,170 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:18:21,171 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:18:21,206 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:18:21,206 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1829200504] [2021-03-11 14:18:21,206 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:18:21,206 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:18:21,206 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1509508529] [2021-03-11 14:18:21,207 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:18:21,207 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:18:21,207 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:18:21,207 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:18:21,207 INFO L87 Difference]: Start difference. First operand 3128 states and 15591 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:21,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:18:21,386 INFO L93 Difference]: Finished difference Result 6063 states and 26965 transitions. [2021-03-11 14:18:21,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:18:21,386 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:18:21,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:18:21,399 INFO L225 Difference]: With dead ends: 6063 [2021-03-11 14:18:21,400 INFO L226 Difference]: Without dead ends: 6045 [2021-03-11 14:18:21,400 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 259.2ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:18:21,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6045 states. [2021-03-11 14:18:21,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6045 to 3135. [2021-03-11 14:18:21,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3135 states, 3134 states have (on average 4.978940650925335) internal successors, (15604), 3134 states have internal predecessors, (15604), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:21,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3135 states to 3135 states and 15604 transitions. [2021-03-11 14:18:21,538 INFO L78 Accepts]: Start accepts. Automaton has 3135 states and 15604 transitions. Word has length 31 [2021-03-11 14:18:21,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:18:21,538 INFO L480 AbstractCegarLoop]: Abstraction has 3135 states and 15604 transitions. [2021-03-11 14:18:21,538 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:21,538 INFO L276 IsEmpty]: Start isEmpty. Operand 3135 states and 15604 transitions. [2021-03-11 14:18:21,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:18:21,543 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:18:21,543 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:18:21,543 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable115 [2021-03-11 14:18:21,543 INFO L428 AbstractCegarLoop]: === Iteration 117 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:18:21,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:18:21,544 INFO L82 PathProgramCache]: Analyzing trace with hash -2108241425, now seen corresponding path program 108 times [2021-03-11 14:18:21,544 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:18:21,544 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1420815533] [2021-03-11 14:18:21,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:18:21,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:18:21,562 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:18:21,562 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:18:21,562 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:18:21,563 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:18:21,567 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:18:21,567 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:18:21,574 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:18:21,575 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:18:21,586 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:18:21,586 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:18:21,603 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:18:21,604 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:18:21,629 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:18:21,630 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:18:21,656 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:18:21,656 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:18:21,683 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:18:21,683 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:18:21,716 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:18:21,716 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:18:21,754 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:18:21,755 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:18:21,791 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:18:21,791 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1420815533] [2021-03-11 14:18:21,791 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:18:21,791 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:18:21,791 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [434236664] [2021-03-11 14:18:21,791 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:18:21,791 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:18:21,792 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:18:21,792 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:18:21,792 INFO L87 Difference]: Start difference. First operand 3135 states and 15604 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:21,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:18:21,949 INFO L93 Difference]: Finished difference Result 6064 states and 26960 transitions. [2021-03-11 14:18:21,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:18:21,949 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:18:21,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:18:21,962 INFO L225 Difference]: With dead ends: 6064 [2021-03-11 14:18:21,962 INFO L226 Difference]: Without dead ends: 6032 [2021-03-11 14:18:21,966 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 277.4ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:18:22,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6032 states. [2021-03-11 14:18:22,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6032 to 3122. [2021-03-11 14:18:22,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3122 states, 3121 states have (on average 4.990067286126242) internal successors, (15574), 3121 states have internal predecessors, (15574), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:22,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3122 states to 3122 states and 15574 transitions. [2021-03-11 14:18:22,110 INFO L78 Accepts]: Start accepts. Automaton has 3122 states and 15574 transitions. Word has length 31 [2021-03-11 14:18:22,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:18:22,110 INFO L480 AbstractCegarLoop]: Abstraction has 3122 states and 15574 transitions. [2021-03-11 14:18:22,110 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:22,110 INFO L276 IsEmpty]: Start isEmpty. Operand 3122 states and 15574 transitions. [2021-03-11 14:18:22,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:18:22,115 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:18:22,115 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:18:22,115 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable116 [2021-03-11 14:18:22,115 INFO L428 AbstractCegarLoop]: === Iteration 118 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:18:22,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:18:22,115 INFO L82 PathProgramCache]: Analyzing trace with hash -1487463505, now seen corresponding path program 109 times [2021-03-11 14:18:22,115 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:18:22,116 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1640897275] [2021-03-11 14:18:22,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:18:22,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:18:22,128 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:18:22,128 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:18:22,128 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:18:22,129 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:18:22,132 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:18:22,133 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:18:22,139 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:18:22,140 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:18:22,150 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:18:22,150 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:18:22,164 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:18:22,164 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:18:22,182 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:18:22,182 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:18:22,204 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:18:22,204 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:18:22,231 INFO L142 QuantifierPusher]: treesize reduction 54, result has 55.4 percent of original size [2021-03-11 14:18:22,231 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-03-11 14:18:22,286 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:18:22,286 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:18:22,325 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:18:22,325 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:18:22,361 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:18:22,361 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1640897275] [2021-03-11 14:18:22,361 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:18:22,361 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:18:22,361 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1040828502] [2021-03-11 14:18:22,361 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:18:22,361 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:18:22,361 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:18:22,361 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:18:22,361 INFO L87 Difference]: Start difference. First operand 3122 states and 15574 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:22,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:18:22,513 INFO L93 Difference]: Finished difference Result 6072 states and 26988 transitions. [2021-03-11 14:18:22,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:18:22,514 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:18:22,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:18:22,526 INFO L225 Difference]: With dead ends: 6072 [2021-03-11 14:18:22,526 INFO L226 Difference]: Without dead ends: 6055 [2021-03-11 14:18:22,527 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 278.3ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:18:22,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6055 states. [2021-03-11 14:18:22,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6055 to 3136. [2021-03-11 14:18:22,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3136 states, 3135 states have (on average 4.980223285486443) internal successors, (15613), 3135 states have internal predecessors, (15613), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:22,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3136 states to 3136 states and 15613 transitions. [2021-03-11 14:18:22,663 INFO L78 Accepts]: Start accepts. Automaton has 3136 states and 15613 transitions. Word has length 31 [2021-03-11 14:18:22,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:18:22,663 INFO L480 AbstractCegarLoop]: Abstraction has 3136 states and 15613 transitions. [2021-03-11 14:18:22,663 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:22,664 INFO L276 IsEmpty]: Start isEmpty. Operand 3136 states and 15613 transitions. [2021-03-11 14:18:22,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:18:22,668 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:18:22,668 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:18:22,669 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable117 [2021-03-11 14:18:22,669 INFO L428 AbstractCegarLoop]: === Iteration 119 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:18:22,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:18:22,669 INFO L82 PathProgramCache]: Analyzing trace with hash 695075161, now seen corresponding path program 110 times [2021-03-11 14:18:22,669 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:18:22,669 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [832318789] [2021-03-11 14:18:22,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:18:22,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:18:22,682 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:18:22,682 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:18:22,683 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:18:22,683 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:18:22,687 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:18:22,687 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:18:22,694 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:18:22,694 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:18:22,704 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:18:22,705 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:18:22,718 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:18:22,719 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:18:22,737 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:18:22,737 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:18:22,759 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:18:22,759 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:18:22,786 INFO L142 QuantifierPusher]: treesize reduction 54, result has 55.4 percent of original size [2021-03-11 14:18:22,786 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-03-11 14:18:22,840 INFO L142 QuantifierPusher]: treesize reduction 72, result has 49.7 percent of original size [2021-03-11 14:18:22,841 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-03-11 14:18:22,881 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:18:22,881 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:18:22,917 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:18:22,917 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [832318789] [2021-03-11 14:18:22,917 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:18:22,917 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:18:22,917 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106553949] [2021-03-11 14:18:22,918 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:18:22,918 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:18:22,918 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:18:22,918 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:18:22,918 INFO L87 Difference]: Start difference. First operand 3136 states and 15613 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:23,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:18:23,054 INFO L93 Difference]: Finished difference Result 6077 states and 26991 transitions. [2021-03-11 14:18:23,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:18:23,054 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:18:23,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:18:23,067 INFO L225 Difference]: With dead ends: 6077 [2021-03-11 14:18:23,067 INFO L226 Difference]: Without dead ends: 6048 [2021-03-11 14:18:23,067 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 255.4ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:18:23,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6048 states. [2021-03-11 14:18:23,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6048 to 3129. [2021-03-11 14:18:23,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3129 states, 3128 states have (on average 4.98497442455243) internal successors, (15593), 3128 states have internal predecessors, (15593), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:23,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3129 states to 3129 states and 15593 transitions. [2021-03-11 14:18:23,203 INFO L78 Accepts]: Start accepts. Automaton has 3129 states and 15593 transitions. Word has length 31 [2021-03-11 14:18:23,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:18:23,203 INFO L480 AbstractCegarLoop]: Abstraction has 3129 states and 15593 transitions. [2021-03-11 14:18:23,203 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:23,203 INFO L276 IsEmpty]: Start isEmpty. Operand 3129 states and 15593 transitions. [2021-03-11 14:18:23,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:18:23,208 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:18:23,208 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:18:23,208 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable118 [2021-03-11 14:18:23,208 INFO L428 AbstractCegarLoop]: === Iteration 120 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:18:23,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:18:23,208 INFO L82 PathProgramCache]: Analyzing trace with hash -1699619123, now seen corresponding path program 111 times [2021-03-11 14:18:23,208 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:18:23,208 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [646195953] [2021-03-11 14:18:23,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:18:23,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:18:23,223 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:18:23,223 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:18:23,223 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:18:23,224 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:18:23,227 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:18:23,228 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:18:23,234 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:18:23,235 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:18:23,245 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:18:23,245 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:18:23,259 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:18:23,259 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:18:23,278 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:18:23,279 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:18:23,301 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:18:23,301 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:18:23,336 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:18:23,336 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:18:23,368 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:18:23,368 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:18:23,407 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:18:23,407 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:18:23,443 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:18:23,443 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [646195953] [2021-03-11 14:18:23,443 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:18:23,443 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:18:23,443 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [617271706] [2021-03-11 14:18:23,443 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:18:23,443 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:18:23,443 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:18:23,443 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:18:23,444 INFO L87 Difference]: Start difference. First operand 3129 states and 15593 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:23,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:18:23,625 INFO L93 Difference]: Finished difference Result 6068 states and 26974 transitions. [2021-03-11 14:18:23,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:18:23,626 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:18:23,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:18:23,640 INFO L225 Difference]: With dead ends: 6068 [2021-03-11 14:18:23,640 INFO L226 Difference]: Without dead ends: 6051 [2021-03-11 14:18:23,640 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 266.9ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:18:23,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6051 states. [2021-03-11 14:18:23,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6051 to 3135. [2021-03-11 14:18:23,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3135 states, 3134 states have (on average 4.978940650925335) internal successors, (15604), 3134 states have internal predecessors, (15604), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:23,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3135 states to 3135 states and 15604 transitions. [2021-03-11 14:18:23,777 INFO L78 Accepts]: Start accepts. Automaton has 3135 states and 15604 transitions. Word has length 31 [2021-03-11 14:18:23,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:18:23,777 INFO L480 AbstractCegarLoop]: Abstraction has 3135 states and 15604 transitions. [2021-03-11 14:18:23,777 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:23,777 INFO L276 IsEmpty]: Start isEmpty. Operand 3135 states and 15604 transitions. [2021-03-11 14:18:23,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:18:23,782 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:18:23,782 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:18:23,782 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable119 [2021-03-11 14:18:23,782 INFO L428 AbstractCegarLoop]: === Iteration 121 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:18:23,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:18:23,782 INFO L82 PathProgramCache]: Analyzing trace with hash 60433817, now seen corresponding path program 112 times [2021-03-11 14:18:23,782 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:18:23,782 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [801102970] [2021-03-11 14:18:23,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:18:23,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:18:23,794 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:18:23,794 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:18:23,795 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:18:23,795 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:18:23,799 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:18:23,799 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:18:23,806 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:18:23,806 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:18:23,816 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:18:23,816 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:18:23,830 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:18:23,830 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:18:23,848 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:18:23,849 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:18:23,873 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:18:23,873 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:18:23,902 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:18:23,902 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:18:23,934 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:18:23,934 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:18:23,974 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:18:23,974 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:18:24,011 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:18:24,011 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [801102970] [2021-03-11 14:18:24,011 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:18:24,011 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:18:24,011 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [109626148] [2021-03-11 14:18:24,011 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:18:24,011 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:18:24,011 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:18:24,011 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:18:24,011 INFO L87 Difference]: Start difference. First operand 3135 states and 15604 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:24,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:18:24,205 INFO L93 Difference]: Finished difference Result 6070 states and 26972 transitions. [2021-03-11 14:18:24,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:18:24,205 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:18:24,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:18:24,218 INFO L225 Difference]: With dead ends: 6070 [2021-03-11 14:18:24,218 INFO L226 Difference]: Without dead ends: 6045 [2021-03-11 14:18:24,218 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 268.0ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:18:24,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6045 states. [2021-03-11 14:18:24,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6045 to 3129. [2021-03-11 14:18:24,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3129 states, 3128 states have (on average 4.983056265984655) internal successors, (15587), 3128 states have internal predecessors, (15587), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:24,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3129 states to 3129 states and 15587 transitions. [2021-03-11 14:18:24,355 INFO L78 Accepts]: Start accepts. Automaton has 3129 states and 15587 transitions. Word has length 31 [2021-03-11 14:18:24,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:18:24,355 INFO L480 AbstractCegarLoop]: Abstraction has 3129 states and 15587 transitions. [2021-03-11 14:18:24,355 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:24,355 INFO L276 IsEmpty]: Start isEmpty. Operand 3129 states and 15587 transitions. [2021-03-11 14:18:24,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:18:24,360 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:18:24,360 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:18:24,360 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable120 [2021-03-11 14:18:24,360 INFO L428 AbstractCegarLoop]: === Iteration 122 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:18:24,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:18:24,360 INFO L82 PathProgramCache]: Analyzing trace with hash -577858547, now seen corresponding path program 113 times [2021-03-11 14:18:24,360 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:18:24,360 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [194516092] [2021-03-11 14:18:24,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:18:24,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:18:24,373 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:18:24,373 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:18:24,373 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:18:24,373 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:18:24,377 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:18:24,377 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:18:24,384 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:18:24,385 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:18:24,395 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:18:24,395 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:18:24,409 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:18:24,409 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:18:24,428 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:18:24,428 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:18:24,450 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:18:24,450 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:18:24,477 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:18:24,477 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:18:24,512 INFO L142 QuantifierPusher]: treesize reduction 72, result has 49.7 percent of original size [2021-03-11 14:18:24,512 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-03-11 14:18:24,552 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:18:24,553 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:18:24,588 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:18:24,588 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [194516092] [2021-03-11 14:18:24,588 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:18:24,588 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:18:24,588 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1344313574] [2021-03-11 14:18:24,589 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:18:24,589 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:18:24,589 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:18:24,589 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:18:24,589 INFO L87 Difference]: Start difference. First operand 3129 states and 15587 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:24,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:18:24,716 INFO L93 Difference]: Finished difference Result 6081 states and 26994 transitions. [2021-03-11 14:18:24,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:18:24,716 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:18:24,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:18:24,729 INFO L225 Difference]: With dead ends: 6081 [2021-03-11 14:18:24,729 INFO L226 Difference]: Without dead ends: 6059 [2021-03-11 14:18:24,729 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 236.3ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:18:24,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6059 states. [2021-03-11 14:18:24,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6059 to 3138. [2021-03-11 14:18:24,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3138 states, 3137 states have (on average 4.973860376155563) internal successors, (15603), 3137 states have internal predecessors, (15603), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:24,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3138 states to 3138 states and 15603 transitions. [2021-03-11 14:18:24,901 INFO L78 Accepts]: Start accepts. Automaton has 3138 states and 15603 transitions. Word has length 31 [2021-03-11 14:18:24,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:18:24,901 INFO L480 AbstractCegarLoop]: Abstraction has 3138 states and 15603 transitions. [2021-03-11 14:18:24,901 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:24,901 INFO L276 IsEmpty]: Start isEmpty. Operand 3138 states and 15603 transitions. [2021-03-11 14:18:24,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:18:24,906 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:18:24,906 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:18:24,906 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable121 [2021-03-11 14:18:24,906 INFO L428 AbstractCegarLoop]: === Iteration 123 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:18:24,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:18:24,907 INFO L82 PathProgramCache]: Analyzing trace with hash -1000344273, now seen corresponding path program 114 times [2021-03-11 14:18:24,907 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:18:24,907 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1378076080] [2021-03-11 14:18:24,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:18:24,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:18:24,921 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:18:24,922 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:18:24,922 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:18:24,922 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:18:24,926 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:18:24,926 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:18:24,932 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:18:24,933 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:18:24,942 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:18:24,943 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:18:24,956 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:18:24,956 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:18:24,974 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:18:24,974 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:18:24,995 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:18:24,996 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:18:25,021 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:18:25,022 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:18:25,054 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:18:25,054 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:18:25,091 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:18:25,092 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:18:25,126 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:18:25,126 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1378076080] [2021-03-11 14:18:25,126 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:18:25,126 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:18:25,126 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1626648270] [2021-03-11 14:18:25,126 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:18:25,126 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:18:25,126 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:18:25,126 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:18:25,126 INFO L87 Difference]: Start difference. First operand 3138 states and 15603 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:25,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:18:25,285 INFO L93 Difference]: Finished difference Result 6078 states and 26980 transitions. [2021-03-11 14:18:25,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:18:25,286 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:18:25,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:18:25,299 INFO L225 Difference]: With dead ends: 6078 [2021-03-11 14:18:25,299 INFO L226 Difference]: Without dead ends: 6043 [2021-03-11 14:18:25,300 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 253.2ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:18:25,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6043 states. [2021-03-11 14:18:25,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6043 to 3122. [2021-03-11 14:18:25,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3122 states, 3121 states have (on average 4.987824415251522) internal successors, (15567), 3121 states have internal predecessors, (15567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:25,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3122 states to 3122 states and 15567 transitions. [2021-03-11 14:18:25,438 INFO L78 Accepts]: Start accepts. Automaton has 3122 states and 15567 transitions. Word has length 31 [2021-03-11 14:18:25,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:18:25,438 INFO L480 AbstractCegarLoop]: Abstraction has 3122 states and 15567 transitions. [2021-03-11 14:18:25,438 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:25,438 INFO L276 IsEmpty]: Start isEmpty. Operand 3122 states and 15567 transitions. [2021-03-11 14:18:25,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:18:25,442 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:18:25,442 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:18:25,443 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable122 [2021-03-11 14:18:25,443 INFO L428 AbstractCegarLoop]: === Iteration 124 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:18:25,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:18:25,443 INFO L82 PathProgramCache]: Analyzing trace with hash 1269474675, now seen corresponding path program 115 times [2021-03-11 14:18:25,443 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:18:25,443 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [992694114] [2021-03-11 14:18:25,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:18:25,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:18:25,456 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:18:25,457 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:18:25,457 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:18:25,457 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:18:25,461 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:18:25,461 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:18:25,478 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:18:25,478 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:18:25,489 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:18:25,490 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:18:25,508 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:18:25,509 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:18:25,532 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:18:25,532 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:18:25,560 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:18:25,561 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:18:25,595 INFO L142 QuantifierPusher]: treesize reduction 54, result has 55.4 percent of original size [2021-03-11 14:18:25,595 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-03-11 14:18:25,657 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:18:25,658 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:18:25,695 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:18:25,696 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:18:25,730 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:18:25,730 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [992694114] [2021-03-11 14:18:25,730 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:18:25,730 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:18:25,730 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [284947753] [2021-03-11 14:18:25,730 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:18:25,730 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:18:25,730 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:18:25,730 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:18:25,730 INFO L87 Difference]: Start difference. First operand 3122 states and 15567 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:25,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:18:25,881 INFO L93 Difference]: Finished difference Result 6079 states and 27000 transitions. [2021-03-11 14:18:25,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:18:25,882 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:18:25,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:18:25,894 INFO L225 Difference]: With dead ends: 6079 [2021-03-11 14:18:25,895 INFO L226 Difference]: Without dead ends: 6061 [2021-03-11 14:18:25,895 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 314.4ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:18:25,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6061 states. [2021-03-11 14:18:26,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6061 to 3138. [2021-03-11 14:18:26,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3138 states, 3137 states have (on average 4.97672935926044) internal successors, (15612), 3137 states have internal predecessors, (15612), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:26,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3138 states to 3138 states and 15612 transitions. [2021-03-11 14:18:26,032 INFO L78 Accepts]: Start accepts. Automaton has 3138 states and 15612 transitions. Word has length 31 [2021-03-11 14:18:26,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:18:26,032 INFO L480 AbstractCegarLoop]: Abstraction has 3138 states and 15612 transitions. [2021-03-11 14:18:26,032 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:26,032 INFO L276 IsEmpty]: Start isEmpty. Operand 3138 states and 15612 transitions. [2021-03-11 14:18:26,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:18:26,037 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:18:26,037 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:18:26,037 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable123 [2021-03-11 14:18:26,037 INFO L428 AbstractCegarLoop]: === Iteration 125 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:18:26,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:18:26,037 INFO L82 PathProgramCache]: Analyzing trace with hash 2017497, now seen corresponding path program 116 times [2021-03-11 14:18:26,037 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:18:26,037 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [86221053] [2021-03-11 14:18:26,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:18:26,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:18:26,049 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:18:26,050 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:18:26,050 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:18:26,050 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:18:26,054 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:18:26,054 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:18:26,060 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:18:26,061 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:18:26,070 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:18:26,071 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:18:26,084 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:18:26,084 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:18:26,102 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:18:26,102 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:18:26,124 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:18:26,124 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:18:26,151 INFO L142 QuantifierPusher]: treesize reduction 54, result has 55.4 percent of original size [2021-03-11 14:18:26,152 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-03-11 14:18:26,206 INFO L142 QuantifierPusher]: treesize reduction 72, result has 49.7 percent of original size [2021-03-11 14:18:26,206 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-03-11 14:18:26,245 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:18:26,245 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:18:26,279 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:18:26,279 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [86221053] [2021-03-11 14:18:26,279 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:18:26,279 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:18:26,279 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1012009707] [2021-03-11 14:18:26,280 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:18:26,280 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:18:26,280 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:18:26,280 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:18:26,280 INFO L87 Difference]: Start difference. First operand 3138 states and 15612 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:26,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:18:26,404 INFO L93 Difference]: Finished difference Result 6083 states and 27000 transitions. [2021-03-11 14:18:26,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:18:26,404 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:18:26,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:18:26,417 INFO L225 Difference]: With dead ends: 6083 [2021-03-11 14:18:26,417 INFO L226 Difference]: Without dead ends: 6053 [2021-03-11 14:18:26,417 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 249.0ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:18:26,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6053 states. [2021-03-11 14:18:26,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6053 to 3130. [2021-03-11 14:18:26,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3130 states, 3129 states have (on average 4.982102908277405) internal successors, (15589), 3129 states have internal predecessors, (15589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:26,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3130 states to 3130 states and 15589 transitions. [2021-03-11 14:18:26,552 INFO L78 Accepts]: Start accepts. Automaton has 3130 states and 15589 transitions. Word has length 31 [2021-03-11 14:18:26,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:18:26,552 INFO L480 AbstractCegarLoop]: Abstraction has 3130 states and 15589 transitions. [2021-03-11 14:18:26,552 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:26,552 INFO L276 IsEmpty]: Start isEmpty. Operand 3130 states and 15589 transitions. [2021-03-11 14:18:26,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:18:26,557 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:18:26,557 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:18:26,557 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable124 [2021-03-11 14:18:26,557 INFO L428 AbstractCegarLoop]: === Iteration 126 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:18:26,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:18:26,558 INFO L82 PathProgramCache]: Analyzing trace with hash 1057319057, now seen corresponding path program 117 times [2021-03-11 14:18:26,558 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:18:26,558 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1568143193] [2021-03-11 14:18:26,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:18:26,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:18:26,575 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:18:26,576 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:18:26,576 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:18:26,576 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:18:26,580 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:18:26,581 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:18:26,588 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:18:26,588 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:18:26,599 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:18:26,599 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:18:26,617 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:18:26,617 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:18:26,641 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:18:26,641 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:18:26,669 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:18:26,669 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:18:26,700 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:18:26,701 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:18:26,732 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:18:26,733 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:18:26,770 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:18:26,770 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:18:26,805 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:18:26,805 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1568143193] [2021-03-11 14:18:26,805 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:18:26,805 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:18:26,805 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1312102354] [2021-03-11 14:18:26,805 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:18:26,805 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:18:26,805 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:18:26,805 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:18:26,805 INFO L87 Difference]: Start difference. First operand 3130 states and 15589 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:27,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:18:27,004 INFO L93 Difference]: Finished difference Result 6075 states and 26985 transitions. [2021-03-11 14:18:27,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:18:27,004 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:18:27,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:18:27,017 INFO L225 Difference]: With dead ends: 6075 [2021-03-11 14:18:27,017 INFO L226 Difference]: Without dead ends: 6057 [2021-03-11 14:18:27,018 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 271.9ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:18:27,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6057 states. [2021-03-11 14:18:27,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6057 to 3137. [2021-03-11 14:18:27,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3137 states, 3136 states have (on average 4.9751275510204085) internal successors, (15602), 3136 states have internal predecessors, (15602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:27,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3137 states to 3137 states and 15602 transitions. [2021-03-11 14:18:27,157 INFO L78 Accepts]: Start accepts. Automaton has 3137 states and 15602 transitions. Word has length 31 [2021-03-11 14:18:27,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:18:27,157 INFO L480 AbstractCegarLoop]: Abstraction has 3137 states and 15602 transitions. [2021-03-11 14:18:27,157 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:27,157 INFO L276 IsEmpty]: Start isEmpty. Operand 3137 states and 15602 transitions. [2021-03-11 14:18:27,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:18:27,162 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:18:27,162 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:18:27,162 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable125 [2021-03-11 14:18:27,162 INFO L428 AbstractCegarLoop]: === Iteration 127 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:18:27,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:18:27,163 INFO L82 PathProgramCache]: Analyzing trace with hash -632623847, now seen corresponding path program 118 times [2021-03-11 14:18:27,163 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:18:27,163 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [351673490] [2021-03-11 14:18:27,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:18:27,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:18:27,176 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:18:27,176 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:18:27,176 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:18:27,176 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:18:27,180 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:18:27,180 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:18:27,187 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:18:27,187 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:18:27,197 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:18:27,197 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:18:27,211 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:18:27,211 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:18:27,229 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:18:27,229 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:18:27,250 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:18:27,251 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:18:27,278 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:18:27,279 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:18:27,325 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:18:27,326 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:18:27,374 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:18:27,375 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:18:27,416 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:18:27,417 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [351673490] [2021-03-11 14:18:27,417 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:18:27,417 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:18:27,417 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1195908955] [2021-03-11 14:18:27,417 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:18:27,417 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:18:27,417 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:18:27,417 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:18:27,417 INFO L87 Difference]: Start difference. First operand 3137 states and 15602 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:27,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:18:27,589 INFO L93 Difference]: Finished difference Result 6076 states and 26980 transitions. [2021-03-11 14:18:27,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:18:27,590 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:18:27,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:18:27,604 INFO L225 Difference]: With dead ends: 6076 [2021-03-11 14:18:27,604 INFO L226 Difference]: Without dead ends: 6050 [2021-03-11 14:18:27,604 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 288.4ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:18:27,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6050 states. [2021-03-11 14:18:27,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6050 to 3130. [2021-03-11 14:18:27,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3130 states, 3129 states have (on average 4.97986577181208) internal successors, (15582), 3129 states have internal predecessors, (15582), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:27,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3130 states to 3130 states and 15582 transitions. [2021-03-11 14:18:27,740 INFO L78 Accepts]: Start accepts. Automaton has 3130 states and 15582 transitions. Word has length 31 [2021-03-11 14:18:27,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:18:27,740 INFO L480 AbstractCegarLoop]: Abstraction has 3130 states and 15582 transitions. [2021-03-11 14:18:27,741 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:27,741 INFO L276 IsEmpty]: Start isEmpty. Operand 3130 states and 15582 transitions. [2021-03-11 14:18:27,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:18:27,746 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:18:27,746 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:18:27,746 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable126 [2021-03-11 14:18:27,746 INFO L428 AbstractCegarLoop]: === Iteration 128 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:18:27,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:18:27,746 INFO L82 PathProgramCache]: Analyzing trace with hash -846604975, now seen corresponding path program 119 times [2021-03-11 14:18:27,746 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:18:27,746 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [881845544] [2021-03-11 14:18:27,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:18:27,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:18:27,761 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:18:27,762 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:18:27,762 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:18:27,762 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:18:27,766 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:18:27,766 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:18:27,773 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:18:27,773 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:18:27,783 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:18:27,783 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:18:27,797 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:18:27,797 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:18:27,815 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:18:27,816 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:18:27,838 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:18:27,838 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:18:27,865 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:18:27,866 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:18:27,898 INFO L142 QuantifierPusher]: treesize reduction 72, result has 49.7 percent of original size [2021-03-11 14:18:27,899 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-03-11 14:18:27,938 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:18:27,938 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:18:27,973 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:18:27,973 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [881845544] [2021-03-11 14:18:27,973 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:18:27,973 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:18:27,973 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [149562916] [2021-03-11 14:18:27,973 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:18:27,973 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:18:27,973 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:18:27,974 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:18:27,974 INFO L87 Difference]: Start difference. First operand 3130 states and 15582 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:28,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:18:28,112 INFO L93 Difference]: Finished difference Result 6085 states and 26997 transitions. [2021-03-11 14:18:28,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:18:28,112 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:18:28,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:18:28,126 INFO L225 Difference]: With dead ends: 6085 [2021-03-11 14:18:28,126 INFO L226 Difference]: Without dead ends: 6063 [2021-03-11 14:18:28,126 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 231.4ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:18:28,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6063 states. [2021-03-11 14:18:28,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6063 to 3139. [2021-03-11 14:18:28,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3139 states, 3138 states have (on average 4.97068196303378) internal successors, (15598), 3138 states have internal predecessors, (15598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:28,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3139 states to 3139 states and 15598 transitions. [2021-03-11 14:18:28,266 INFO L78 Accepts]: Start accepts. Automaton has 3139 states and 15598 transitions. Word has length 31 [2021-03-11 14:18:28,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:18:28,266 INFO L480 AbstractCegarLoop]: Abstraction has 3139 states and 15598 transitions. [2021-03-11 14:18:28,266 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:28,266 INFO L276 IsEmpty]: Start isEmpty. Operand 3139 states and 15598 transitions. [2021-03-11 14:18:28,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:18:28,271 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:18:28,271 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:18:28,271 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable127 [2021-03-11 14:18:28,272 INFO L428 AbstractCegarLoop]: === Iteration 129 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:18:28,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:18:28,272 INFO L82 PathProgramCache]: Analyzing trace with hash -1269090701, now seen corresponding path program 120 times [2021-03-11 14:18:28,272 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:18:28,272 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [726067867] [2021-03-11 14:18:28,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:18:28,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:18:28,284 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:18:28,284 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:18:28,285 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:18:28,285 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:18:28,289 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:18:28,289 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:18:28,295 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:18:28,296 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:18:28,305 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:18:28,306 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:18:28,319 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:18:28,320 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:18:28,337 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:18:28,338 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:18:28,359 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:18:28,360 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:18:28,387 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:18:28,387 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:18:28,420 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:18:28,420 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:18:28,458 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:18:28,459 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:18:28,494 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:18:28,494 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [726067867] [2021-03-11 14:18:28,494 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:18:28,494 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:18:28,494 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [475153274] [2021-03-11 14:18:28,494 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:18:28,495 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:18:28,495 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:18:28,495 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:18:28,495 INFO L87 Difference]: Start difference. First operand 3139 states and 15598 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:28,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:18:28,724 INFO L93 Difference]: Finished difference Result 6082 states and 26983 transitions. [2021-03-11 14:18:28,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:18:28,725 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:18:28,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:18:28,738 INFO L225 Difference]: With dead ends: 6082 [2021-03-11 14:18:28,738 INFO L226 Difference]: Without dead ends: 6028 [2021-03-11 14:18:28,738 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 259.6ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:18:28,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6028 states. [2021-03-11 14:18:28,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6028 to 3104. [2021-03-11 14:18:28,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3104 states, 3103 states have (on average 5.003867225265871) internal successors, (15527), 3103 states have internal predecessors, (15527), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:28,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3104 states to 3104 states and 15527 transitions. [2021-03-11 14:18:28,875 INFO L78 Accepts]: Start accepts. Automaton has 3104 states and 15527 transitions. Word has length 31 [2021-03-11 14:18:28,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:18:28,875 INFO L480 AbstractCegarLoop]: Abstraction has 3104 states and 15527 transitions. [2021-03-11 14:18:28,875 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:28,875 INFO L276 IsEmpty]: Start isEmpty. Operand 3104 states and 15527 transitions. [2021-03-11 14:18:28,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:18:28,880 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:18:28,880 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:18:28,880 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable128 [2021-03-11 14:18:28,880 INFO L428 AbstractCegarLoop]: === Iteration 130 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:18:28,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:18:28,880 INFO L82 PathProgramCache]: Analyzing trace with hash 2122335583, now seen corresponding path program 121 times [2021-03-11 14:18:28,880 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:18:28,880 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [574369325] [2021-03-11 14:18:28,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:18:28,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:18:28,893 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:18:28,893 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:18:28,894 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:18:28,894 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:18:28,898 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:18:28,898 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:18:28,911 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:18:28,911 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:18:28,921 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:18:28,921 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:18:28,935 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:18:28,935 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:18:28,952 INFO L142 QuantifierPusher]: treesize reduction 45, result has 51.1 percent of original size [2021-03-11 14:18:28,952 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-11 14:18:28,975 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:18:28,975 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:18:29,003 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:18:29,003 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:18:29,035 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:18:29,035 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:18:29,073 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:18:29,074 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:18:29,108 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:18:29,109 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [574369325] [2021-03-11 14:18:29,109 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:18:29,109 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:18:29,109 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [103262576] [2021-03-11 14:18:29,109 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:18:29,109 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:18:29,109 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:18:29,109 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:18:29,109 INFO L87 Difference]: Start difference. First operand 3104 states and 15527 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:29,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:18:29,335 INFO L93 Difference]: Finished difference Result 6086 states and 27042 transitions. [2021-03-11 14:18:29,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:18:29,335 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:18:29,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:18:29,348 INFO L225 Difference]: With dead ends: 6086 [2021-03-11 14:18:29,348 INFO L226 Difference]: Without dead ends: 6066 [2021-03-11 14:18:29,348 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 266.3ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:18:29,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6066 states. [2021-03-11 14:18:29,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6066 to 3140. [2021-03-11 14:18:29,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3140 states, 3139 states have (on average 4.9885313794201975) internal successors, (15659), 3139 states have internal predecessors, (15659), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:29,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3140 states to 3140 states and 15659 transitions. [2021-03-11 14:18:29,485 INFO L78 Accepts]: Start accepts. Automaton has 3140 states and 15659 transitions. Word has length 31 [2021-03-11 14:18:29,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:18:29,485 INFO L480 AbstractCegarLoop]: Abstraction has 3140 states and 15659 transitions. [2021-03-11 14:18:29,485 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:29,485 INFO L276 IsEmpty]: Start isEmpty. Operand 3140 states and 15659 transitions. [2021-03-11 14:18:29,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:18:29,490 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:18:29,490 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:18:29,490 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable129 [2021-03-11 14:18:29,490 INFO L428 AbstractCegarLoop]: === Iteration 131 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:18:29,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:18:29,490 INFO L82 PathProgramCache]: Analyzing trace with hash 432392679, now seen corresponding path program 122 times [2021-03-11 14:18:29,490 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:18:29,491 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1884169663] [2021-03-11 14:18:29,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:18:29,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:18:29,504 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:18:29,504 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:18:29,504 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:18:29,505 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:18:29,508 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:18:29,509 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:18:29,515 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:18:29,515 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:18:29,525 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:18:29,526 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:18:29,539 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:18:29,540 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:18:29,557 INFO L142 QuantifierPusher]: treesize reduction 45, result has 51.1 percent of original size [2021-03-11 14:18:29,557 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-11 14:18:29,580 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:18:29,580 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:18:29,607 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:18:29,608 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:18:29,639 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:18:29,639 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:18:29,677 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:18:29,677 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:18:29,713 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:18:29,713 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1884169663] [2021-03-11 14:18:29,713 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:18:29,713 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:18:29,713 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1697734343] [2021-03-11 14:18:29,713 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:18:29,713 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:18:29,713 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:18:29,713 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:18:29,713 INFO L87 Difference]: Start difference. First operand 3140 states and 15659 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:29,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:18:29,878 INFO L93 Difference]: Finished difference Result 6084 states and 27031 transitions. [2021-03-11 14:18:29,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:18:29,878 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:18:29,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:18:29,891 INFO L225 Difference]: With dead ends: 6084 [2021-03-11 14:18:29,891 INFO L226 Difference]: Without dead ends: 6059 [2021-03-11 14:18:29,892 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 254.2ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:18:29,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6059 states. [2021-03-11 14:18:30,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6059 to 3133. [2021-03-11 14:18:30,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3133 states, 3132 states have (on average 4.993295019157088) internal successors, (15639), 3132 states have internal predecessors, (15639), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:30,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3133 states to 3133 states and 15639 transitions. [2021-03-11 14:18:30,029 INFO L78 Accepts]: Start accepts. Automaton has 3133 states and 15639 transitions. Word has length 31 [2021-03-11 14:18:30,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:18:30,029 INFO L480 AbstractCegarLoop]: Abstraction has 3133 states and 15639 transitions. [2021-03-11 14:18:30,029 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:30,029 INFO L276 IsEmpty]: Start isEmpty. Operand 3133 states and 15639 transitions. [2021-03-11 14:18:30,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:18:30,034 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:18:30,034 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:18:30,034 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable130 [2021-03-11 14:18:30,034 INFO L428 AbstractCegarLoop]: === Iteration 132 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:18:30,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:18:30,035 INFO L82 PathProgramCache]: Analyzing trace with hash 1485868729, now seen corresponding path program 123 times [2021-03-11 14:18:30,035 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:18:30,035 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1841474240] [2021-03-11 14:18:30,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:18:30,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:18:30,047 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:18:30,047 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:18:30,048 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:18:30,048 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:18:30,052 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:18:30,052 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:18:30,059 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:18:30,059 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:18:30,069 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:18:30,070 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:18:30,084 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:18:30,084 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:18:30,102 INFO L142 QuantifierPusher]: treesize reduction 45, result has 51.1 percent of original size [2021-03-11 14:18:30,115 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-11 14:18:30,139 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:18:30,140 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:18:30,167 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:18:30,168 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:18:30,202 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:18:30,203 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:18:30,242 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:18:30,243 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:18:30,278 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:18:30,279 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1841474240] [2021-03-11 14:18:30,279 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:18:30,279 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:18:30,279 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [942110538] [2021-03-11 14:18:30,279 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:18:30,279 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:18:30,279 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:18:30,279 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:18:30,279 INFO L87 Difference]: Start difference. First operand 3133 states and 15639 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:30,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:18:30,437 INFO L93 Difference]: Finished difference Result 6094 states and 27051 transitions. [2021-03-11 14:18:30,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:18:30,437 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:18:30,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:18:30,451 INFO L225 Difference]: With dead ends: 6094 [2021-03-11 14:18:30,451 INFO L226 Difference]: Without dead ends: 6074 [2021-03-11 14:18:30,452 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 268.1ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:18:30,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6074 states. [2021-03-11 14:18:30,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6074 to 3144. [2021-03-11 14:18:30,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3144 states, 3143 states have (on average 4.982182628062361) internal successors, (15659), 3143 states have internal predecessors, (15659), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:30,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3144 states to 3144 states and 15659 transitions. [2021-03-11 14:18:30,596 INFO L78 Accepts]: Start accepts. Automaton has 3144 states and 15659 transitions. Word has length 31 [2021-03-11 14:18:30,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:18:30,597 INFO L480 AbstractCegarLoop]: Abstraction has 3144 states and 15659 transitions. [2021-03-11 14:18:30,597 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:30,597 INFO L276 IsEmpty]: Start isEmpty. Operand 3144 states and 15659 transitions. [2021-03-11 14:18:30,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:18:30,602 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:18:30,602 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:18:30,602 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable131 [2021-03-11 14:18:30,602 INFO L428 AbstractCegarLoop]: === Iteration 133 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:18:30,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:18:30,602 INFO L82 PathProgramCache]: Analyzing trace with hash -1471531353, now seen corresponding path program 124 times [2021-03-11 14:18:30,602 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:18:30,602 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [726375556] [2021-03-11 14:18:30,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:18:30,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:18:30,621 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:18:30,621 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:18:30,622 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:18:30,622 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:18:30,626 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:18:30,626 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:18:30,633 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:18:30,633 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:18:30,643 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:18:30,644 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:18:30,658 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:18:30,658 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:18:30,676 INFO L142 QuantifierPusher]: treesize reduction 45, result has 51.1 percent of original size [2021-03-11 14:18:30,677 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-11 14:18:30,700 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:18:30,701 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:18:30,728 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:18:30,729 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:18:30,763 INFO L142 QuantifierPusher]: treesize reduction 72, result has 49.7 percent of original size [2021-03-11 14:18:30,763 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-03-11 14:18:30,803 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:18:30,804 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:18:30,839 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:18:30,839 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [726375556] [2021-03-11 14:18:30,840 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:18:30,840 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:18:30,840 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1076670860] [2021-03-11 14:18:30,840 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:18:30,840 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:18:30,840 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:18:30,840 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:18:30,840 INFO L87 Difference]: Start difference. First operand 3144 states and 15659 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:30,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:18:30,980 INFO L93 Difference]: Finished difference Result 6096 states and 27045 transitions. [2021-03-11 14:18:30,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:18:30,981 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:18:30,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:18:30,995 INFO L225 Difference]: With dead ends: 6096 [2021-03-11 14:18:30,995 INFO L226 Difference]: Without dead ends: 6063 [2021-03-11 14:18:30,995 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 237.1ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:18:31,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6063 states. [2021-03-11 14:18:31,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6063 to 3133. [2021-03-11 14:18:31,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3133 states, 3132 states have (on average 4.990421455938697) internal successors, (15630), 3132 states have internal predecessors, (15630), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:31,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3133 states to 3133 states and 15630 transitions. [2021-03-11 14:18:31,141 INFO L78 Accepts]: Start accepts. Automaton has 3133 states and 15630 transitions. Word has length 31 [2021-03-11 14:18:31,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:18:31,141 INFO L480 AbstractCegarLoop]: Abstraction has 3133 states and 15630 transitions. [2021-03-11 14:18:31,141 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:31,141 INFO L276 IsEmpty]: Start isEmpty. Operand 3133 states and 15630 transitions. [2021-03-11 14:18:31,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:18:31,146 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:18:31,146 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:18:31,146 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable132 [2021-03-11 14:18:31,147 INFO L428 AbstractCegarLoop]: === Iteration 134 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:18:31,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:18:31,147 INFO L82 PathProgramCache]: Analyzing trace with hash -1052696647, now seen corresponding path program 125 times [2021-03-11 14:18:31,147 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:18:31,147 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [737191087] [2021-03-11 14:18:31,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:18:31,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:18:31,160 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:18:31,160 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:18:31,160 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:18:31,161 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:18:31,164 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:18:31,165 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:18:31,172 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:18:31,172 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:18:31,182 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:18:31,183 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:18:31,197 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:18:31,197 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:18:31,216 INFO L142 QuantifierPusher]: treesize reduction 45, result has 51.1 percent of original size [2021-03-11 14:18:31,216 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-11 14:18:31,239 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:18:31,240 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:18:31,268 INFO L142 QuantifierPusher]: treesize reduction 54, result has 55.4 percent of original size [2021-03-11 14:18:31,268 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-03-11 14:18:31,325 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:18:31,325 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:18:31,364 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:18:31,364 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:18:31,400 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:18:31,401 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [737191087] [2021-03-11 14:18:31,401 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:18:31,401 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:18:31,401 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [670102691] [2021-03-11 14:18:31,401 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:18:31,401 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:18:31,401 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:18:31,401 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:18:31,401 INFO L87 Difference]: Start difference. First operand 3133 states and 15630 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:31,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:18:31,560 INFO L93 Difference]: Finished difference Result 6087 states and 27027 transitions. [2021-03-11 14:18:31,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:18:31,561 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:18:31,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:18:31,574 INFO L225 Difference]: With dead ends: 6087 [2021-03-11 14:18:31,574 INFO L226 Difference]: Without dead ends: 6069 [2021-03-11 14:18:31,575 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 284.8ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:18:31,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6069 states. [2021-03-11 14:18:31,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6069 to 3141. [2021-03-11 14:18:31,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3141 states, 3140 states have (on average 4.982484076433121) internal successors, (15645), 3140 states have internal predecessors, (15645), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:31,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3141 states to 3141 states and 15645 transitions. [2021-03-11 14:18:31,722 INFO L78 Accepts]: Start accepts. Automaton has 3141 states and 15645 transitions. Word has length 31 [2021-03-11 14:18:31,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:18:31,722 INFO L480 AbstractCegarLoop]: Abstraction has 3141 states and 15645 transitions. [2021-03-11 14:18:31,722 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:31,723 INFO L276 IsEmpty]: Start isEmpty. Operand 3141 states and 15645 transitions. [2021-03-11 14:18:31,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:18:31,728 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:18:31,728 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:18:31,728 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable133 [2021-03-11 14:18:31,728 INFO L428 AbstractCegarLoop]: === Iteration 135 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:18:31,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:18:31,728 INFO L82 PathProgramCache]: Analyzing trace with hash 1974813471, now seen corresponding path program 126 times [2021-03-11 14:18:31,728 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:18:31,728 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [100881628] [2021-03-11 14:18:31,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:18:31,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:18:31,741 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:18:31,741 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:18:31,741 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:18:31,741 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:18:31,745 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:18:31,746 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:18:31,752 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:18:31,753 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:18:31,763 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:18:31,764 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:18:31,780 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:18:31,781 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:18:31,799 INFO L142 QuantifierPusher]: treesize reduction 45, result has 51.1 percent of original size [2021-03-11 14:18:31,799 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-11 14:18:31,823 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:18:31,823 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:18:31,851 INFO L142 QuantifierPusher]: treesize reduction 54, result has 55.4 percent of original size [2021-03-11 14:18:31,852 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-03-11 14:18:31,918 INFO L142 QuantifierPusher]: treesize reduction 72, result has 49.7 percent of original size [2021-03-11 14:18:31,918 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-03-11 14:18:31,959 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:18:31,959 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:18:31,995 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:18:31,995 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [100881628] [2021-03-11 14:18:31,995 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:18:31,995 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:18:31,995 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1404464511] [2021-03-11 14:18:31,996 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:18:31,996 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:18:31,996 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:18:31,996 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:18:31,996 INFO L87 Difference]: Start difference. First operand 3141 states and 15645 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:32,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:18:32,131 INFO L93 Difference]: Finished difference Result 6091 states and 27027 transitions. [2021-03-11 14:18:32,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:18:32,132 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:18:32,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:18:32,146 INFO L225 Difference]: With dead ends: 6091 [2021-03-11 14:18:32,146 INFO L226 Difference]: Without dead ends: 6052 [2021-03-11 14:18:32,146 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 273.1ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:18:32,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6052 states. [2021-03-11 14:18:32,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6052 to 3124. [2021-03-11 14:18:32,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3124 states, 3123 states have (on average 4.996797950688441) internal successors, (15605), 3123 states have internal predecessors, (15605), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:32,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3124 states to 3124 states and 15605 transitions. [2021-03-11 14:18:32,292 INFO L78 Accepts]: Start accepts. Automaton has 3124 states and 15605 transitions. Word has length 31 [2021-03-11 14:18:32,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:18:32,292 INFO L480 AbstractCegarLoop]: Abstraction has 3124 states and 15605 transitions. [2021-03-11 14:18:32,292 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:32,292 INFO L276 IsEmpty]: Start isEmpty. Operand 3124 states and 15605 transitions. [2021-03-11 14:18:32,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:18:32,298 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:18:32,298 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:18:32,298 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable134 [2021-03-11 14:18:32,298 INFO L428 AbstractCegarLoop]: === Iteration 136 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:18:32,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:18:32,298 INFO L82 PathProgramCache]: Analyzing trace with hash 40279293, now seen corresponding path program 127 times [2021-03-11 14:18:32,298 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:18:32,298 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1380546245] [2021-03-11 14:18:32,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:18:32,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:18:32,311 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:18:32,311 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:18:32,311 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:18:32,311 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:18:32,315 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:18:32,316 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:18:32,322 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:18:32,323 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:18:32,333 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:18:32,333 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:18:32,348 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:18:32,348 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:18:32,366 INFO L142 QuantifierPusher]: treesize reduction 45, result has 51.1 percent of original size [2021-03-11 14:18:32,367 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-11 14:18:32,390 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:18:32,391 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:18:32,419 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:18:32,419 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:18:32,453 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:18:32,453 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:18:32,492 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:18:32,493 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:18:32,528 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:18:32,528 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1380546245] [2021-03-11 14:18:32,528 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:18:32,528 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:18:32,528 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1063373722] [2021-03-11 14:18:32,528 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:18:32,528 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:18:32,528 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:18:32,529 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:18:32,529 INFO L87 Difference]: Start difference. First operand 3124 states and 15605 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:32,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:18:32,692 INFO L93 Difference]: Finished difference Result 6077 states and 27015 transitions. [2021-03-11 14:18:32,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:18:32,693 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:18:32,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:18:32,705 INFO L225 Difference]: With dead ends: 6077 [2021-03-11 14:18:32,706 INFO L226 Difference]: Without dead ends: 6057 [2021-03-11 14:18:32,706 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 267.5ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:18:32,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6057 states. [2021-03-11 14:18:32,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6057 to 3138. [2021-03-11 14:18:32,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3138 states, 3137 states have (on average 4.987248963978323) internal successors, (15645), 3137 states have internal predecessors, (15645), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:32,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3138 states to 3138 states and 15645 transitions. [2021-03-11 14:18:32,843 INFO L78 Accepts]: Start accepts. Automaton has 3138 states and 15645 transitions. Word has length 31 [2021-03-11 14:18:32,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:18:32,843 INFO L480 AbstractCegarLoop]: Abstraction has 3138 states and 15645 transitions. [2021-03-11 14:18:32,843 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:32,843 INFO L276 IsEmpty]: Start isEmpty. Operand 3138 states and 15645 transitions. [2021-03-11 14:18:32,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:18:32,848 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:18:32,848 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:18:32,848 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable135 [2021-03-11 14:18:32,848 INFO L428 AbstractCegarLoop]: === Iteration 137 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:18:32,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:18:32,848 INFO L82 PathProgramCache]: Analyzing trace with hash -1649663611, now seen corresponding path program 128 times [2021-03-11 14:18:32,848 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:18:32,848 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [725065820] [2021-03-11 14:18:32,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:18:32,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:18:32,865 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:18:32,865 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:18:32,866 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:18:32,866 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:18:32,870 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:18:32,870 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:18:32,878 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:18:32,878 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:18:32,890 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:18:32,890 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:18:32,908 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:18:32,909 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:18:32,932 INFO L142 QuantifierPusher]: treesize reduction 45, result has 51.1 percent of original size [2021-03-11 14:18:32,933 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-11 14:18:32,962 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:18:32,963 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:18:32,994 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:18:32,994 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:18:33,026 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:18:33,027 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:18:33,065 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:18:33,065 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:18:33,101 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:18:33,101 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [725065820] [2021-03-11 14:18:33,101 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:18:33,101 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:18:33,101 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [161219550] [2021-03-11 14:18:33,101 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:18:33,101 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:18:33,101 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:18:33,101 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:18:33,101 INFO L87 Difference]: Start difference. First operand 3138 states and 15645 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:33,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:18:33,271 INFO L93 Difference]: Finished difference Result 6075 states and 27004 transitions. [2021-03-11 14:18:33,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:18:33,272 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:18:33,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:18:33,285 INFO L225 Difference]: With dead ends: 6075 [2021-03-11 14:18:33,285 INFO L226 Difference]: Without dead ends: 6050 [2021-03-11 14:18:33,285 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 279.0ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:18:33,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6050 states. [2021-03-11 14:18:33,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6050 to 3131. [2021-03-11 14:18:33,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3131 states, 3130 states have (on average 4.992012779552716) internal successors, (15625), 3130 states have internal predecessors, (15625), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:33,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3131 states to 3131 states and 15625 transitions. [2021-03-11 14:18:33,423 INFO L78 Accepts]: Start accepts. Automaton has 3131 states and 15625 transitions. Word has length 31 [2021-03-11 14:18:33,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:18:33,423 INFO L480 AbstractCegarLoop]: Abstraction has 3131 states and 15625 transitions. [2021-03-11 14:18:33,423 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:33,423 INFO L276 IsEmpty]: Start isEmpty. Operand 3131 states and 15625 transitions. [2021-03-11 14:18:33,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:18:33,428 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:18:33,428 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:18:33,428 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable136 [2021-03-11 14:18:33,428 INFO L428 AbstractCegarLoop]: === Iteration 138 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:18:33,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:18:33,428 INFO L82 PathProgramCache]: Analyzing trace with hash -808343179, now seen corresponding path program 129 times [2021-03-11 14:18:33,428 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:18:33,428 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1505915147] [2021-03-11 14:18:33,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:18:33,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:18:33,447 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:18:33,447 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:18:33,448 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:18:33,448 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:18:33,452 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:18:33,452 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:18:33,460 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:18:33,460 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:18:33,471 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:18:33,472 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:18:33,490 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:18:33,490 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:18:33,513 INFO L142 QuantifierPusher]: treesize reduction 45, result has 51.1 percent of original size [2021-03-11 14:18:33,514 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-11 14:18:33,537 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:18:33,537 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:18:33,564 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:18:33,565 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:18:33,597 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:18:33,598 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:18:33,636 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:18:33,637 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:18:33,672 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:18:33,673 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1505915147] [2021-03-11 14:18:33,673 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:18:33,673 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:18:33,673 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2100213678] [2021-03-11 14:18:33,673 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:18:33,673 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:18:33,673 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:18:33,673 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:18:33,673 INFO L87 Difference]: Start difference. First operand 3131 states and 15625 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:33,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:18:33,850 INFO L93 Difference]: Finished difference Result 6079 states and 27013 transitions. [2021-03-11 14:18:33,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:18:33,851 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:18:33,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:18:33,864 INFO L225 Difference]: With dead ends: 6079 [2021-03-11 14:18:33,864 INFO L226 Difference]: Without dead ends: 6059 [2021-03-11 14:18:33,864 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 276.5ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:18:33,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6059 states. [2021-03-11 14:18:33,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6059 to 3139. [2021-03-11 14:18:33,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3139 states, 3138 states have (on average 4.984066284257489) internal successors, (15640), 3138 states have internal predecessors, (15640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:34,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3139 states to 3139 states and 15640 transitions. [2021-03-11 14:18:34,000 INFO L78 Accepts]: Start accepts. Automaton has 3139 states and 15640 transitions. Word has length 31 [2021-03-11 14:18:34,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:18:34,000 INFO L480 AbstractCegarLoop]: Abstraction has 3139 states and 15640 transitions. [2021-03-11 14:18:34,000 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:34,000 INFO L276 IsEmpty]: Start isEmpty. Operand 3139 states and 15640 transitions. [2021-03-11 14:18:34,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:18:34,005 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:18:34,005 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:18:34,005 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable137 [2021-03-11 14:18:34,005 INFO L428 AbstractCegarLoop]: === Iteration 139 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:18:34,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:18:34,005 INFO L82 PathProgramCache]: Analyzing trace with hash 106738309, now seen corresponding path program 130 times [2021-03-11 14:18:34,005 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:18:34,005 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [167218867] [2021-03-11 14:18:34,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:18:34,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:18:34,020 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:18:34,021 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:18:34,021 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:18:34,021 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:18:34,025 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:18:34,025 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:18:34,032 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:18:34,032 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:18:34,042 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:18:34,043 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:18:34,057 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:18:34,057 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:18:34,074 INFO L142 QuantifierPusher]: treesize reduction 45, result has 51.1 percent of original size [2021-03-11 14:18:34,075 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-11 14:18:34,098 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:18:34,099 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:18:34,127 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:18:34,127 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:18:34,160 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:18:34,160 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:18:34,199 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:18:34,199 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:18:34,235 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:18:34,235 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [167218867] [2021-03-11 14:18:34,235 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:18:34,235 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:18:34,235 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [179365220] [2021-03-11 14:18:34,235 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:18:34,235 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:18:34,235 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:18:34,236 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:18:34,236 INFO L87 Difference]: Start difference. First operand 3139 states and 15640 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:34,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:18:34,434 INFO L93 Difference]: Finished difference Result 6078 states and 27003 transitions. [2021-03-11 14:18:34,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:18:34,434 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:18:34,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:18:34,447 INFO L225 Difference]: With dead ends: 6078 [2021-03-11 14:18:34,447 INFO L226 Difference]: Without dead ends: 6051 [2021-03-11 14:18:34,447 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 264.9ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:18:34,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6051 states. [2021-03-11 14:18:34,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6051 to 3131. [2021-03-11 14:18:34,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3131 states, 3130 states have (on average 4.989776357827476) internal successors, (15618), 3130 states have internal predecessors, (15618), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:34,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3131 states to 3131 states and 15618 transitions. [2021-03-11 14:18:34,584 INFO L78 Accepts]: Start accepts. Automaton has 3131 states and 15618 transitions. Word has length 31 [2021-03-11 14:18:34,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:18:34,584 INFO L480 AbstractCegarLoop]: Abstraction has 3131 states and 15618 transitions. [2021-03-11 14:18:34,584 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:34,584 INFO L276 IsEmpty]: Start isEmpty. Operand 3131 states and 15618 transitions. [2021-03-11 14:18:34,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:18:34,589 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:18:34,589 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:18:34,589 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable138 [2021-03-11 14:18:34,589 INFO L428 AbstractCegarLoop]: === Iteration 140 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:18:34,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:18:34,590 INFO L82 PathProgramCache]: Analyzing trace with hash 948058741, now seen corresponding path program 131 times [2021-03-11 14:18:34,590 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:18:34,590 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [380190521] [2021-03-11 14:18:34,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:18:34,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:18:34,602 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:18:34,602 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:18:34,603 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:18:34,603 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:18:34,607 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:18:34,607 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:18:34,614 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:18:34,614 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:18:34,625 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:18:34,625 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:18:34,640 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:18:34,640 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:18:34,659 INFO L142 QuantifierPusher]: treesize reduction 45, result has 51.1 percent of original size [2021-03-11 14:18:34,659 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-11 14:18:34,683 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:18:34,684 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:18:34,712 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:18:34,713 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:18:34,746 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:18:34,746 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:18:34,785 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:18:34,785 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:18:34,821 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:18:34,821 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [380190521] [2021-03-11 14:18:34,821 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:18:34,821 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:18:34,821 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [836421799] [2021-03-11 14:18:34,821 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:18:34,821 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:18:34,821 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:18:34,821 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:18:34,821 INFO L87 Difference]: Start difference. First operand 3131 states and 15618 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:35,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:18:35,007 INFO L93 Difference]: Finished difference Result 6074 states and 26995 transitions. [2021-03-11 14:18:35,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:18:35,008 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:18:35,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:18:35,021 INFO L225 Difference]: With dead ends: 6074 [2021-03-11 14:18:35,021 INFO L226 Difference]: Without dead ends: 6056 [2021-03-11 14:18:35,021 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 262.9ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:18:35,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6056 states. [2021-03-11 14:18:35,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6056 to 3138. [2021-03-11 14:18:35,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3138 states, 3137 states have (on average 4.982786101370737) internal successors, (15631), 3137 states have internal predecessors, (15631), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:35,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3138 states to 3138 states and 15631 transitions. [2021-03-11 14:18:35,158 INFO L78 Accepts]: Start accepts. Automaton has 3138 states and 15631 transitions. Word has length 31 [2021-03-11 14:18:35,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:18:35,158 INFO L480 AbstractCegarLoop]: Abstraction has 3138 states and 15631 transitions. [2021-03-11 14:18:35,159 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:35,159 INFO L276 IsEmpty]: Start isEmpty. Operand 3138 states and 15631 transitions. [2021-03-11 14:18:35,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:18:35,163 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:18:35,163 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:18:35,164 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable139 [2021-03-11 14:18:35,164 INFO L428 AbstractCegarLoop]: === Iteration 141 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:18:35,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:18:35,164 INFO L82 PathProgramCache]: Analyzing trace with hash -741884163, now seen corresponding path program 132 times [2021-03-11 14:18:35,164 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:18:35,164 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1652153810] [2021-03-11 14:18:35,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:18:35,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:18:35,177 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:18:35,177 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:18:35,177 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:18:35,178 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:18:35,181 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:18:35,182 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:18:35,188 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:18:35,189 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:18:35,199 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:18:35,199 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:18:35,213 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:18:35,213 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:18:35,231 INFO L142 QuantifierPusher]: treesize reduction 45, result has 51.1 percent of original size [2021-03-11 14:18:35,231 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-11 14:18:35,254 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:18:35,254 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:18:35,282 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:18:35,282 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:18:35,315 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:18:35,316 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:18:35,354 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:18:35,355 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:18:35,390 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:18:35,390 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1652153810] [2021-03-11 14:18:35,390 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:18:35,390 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:18:35,390 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [336758663] [2021-03-11 14:18:35,390 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:18:35,390 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:18:35,390 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:18:35,390 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:18:35,391 INFO L87 Difference]: Start difference. First operand 3138 states and 15631 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:35,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:18:35,564 INFO L93 Difference]: Finished difference Result 6075 states and 26990 transitions. [2021-03-11 14:18:35,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:18:35,564 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:18:35,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:18:35,577 INFO L225 Difference]: With dead ends: 6075 [2021-03-11 14:18:35,577 INFO L226 Difference]: Without dead ends: 6042 [2021-03-11 14:18:35,578 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 263.6ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:18:35,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6042 states. [2021-03-11 14:18:35,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6042 to 3124. [2021-03-11 14:18:35,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3124 states, 3123 states have (on average 4.994556516170349) internal successors, (15598), 3123 states have internal predecessors, (15598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:35,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3124 states to 3124 states and 15598 transitions. [2021-03-11 14:18:35,716 INFO L78 Accepts]: Start accepts. Automaton has 3124 states and 15598 transitions. Word has length 31 [2021-03-11 14:18:35,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:18:35,716 INFO L480 AbstractCegarLoop]: Abstraction has 3124 states and 15598 transitions. [2021-03-11 14:18:35,716 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:35,716 INFO L276 IsEmpty]: Start isEmpty. Operand 3124 states and 15598 transitions. [2021-03-11 14:18:35,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:18:35,721 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:18:35,721 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:18:35,721 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable140 [2021-03-11 14:18:35,721 INFO L428 AbstractCegarLoop]: === Iteration 142 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:18:35,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:18:35,722 INFO L82 PathProgramCache]: Analyzing trace with hash 1148176445, now seen corresponding path program 133 times [2021-03-11 14:18:35,722 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:18:35,722 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1577591482] [2021-03-11 14:18:35,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:18:35,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:18:35,735 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:18:35,735 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:18:35,736 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:18:35,736 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:18:35,740 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:18:35,740 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:18:35,747 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:18:35,747 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:18:35,757 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:18:35,758 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:18:35,772 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:18:35,772 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:18:35,790 INFO L142 QuantifierPusher]: treesize reduction 45, result has 51.1 percent of original size [2021-03-11 14:18:35,790 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-11 14:18:35,813 INFO L142 QuantifierPusher]: treesize reduction 54, result has 50.5 percent of original size [2021-03-11 14:18:35,814 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-11 14:18:35,842 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:18:35,842 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:18:35,876 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:18:35,876 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:18:35,915 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:18:35,916 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:18:35,951 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:18:35,951 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1577591482] [2021-03-11 14:18:35,951 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:18:35,951 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:18:35,951 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2086361252] [2021-03-11 14:18:35,951 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:18:35,951 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:18:35,952 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:18:35,952 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:18:35,952 INFO L87 Difference]: Start difference. First operand 3124 states and 15598 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:36,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:18:36,132 INFO L93 Difference]: Finished difference Result 6099 states and 27055 transitions. [2021-03-11 14:18:36,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:18:36,133 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:18:36,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:18:36,146 INFO L225 Difference]: With dead ends: 6099 [2021-03-11 14:18:36,146 INFO L226 Difference]: Without dead ends: 6079 [2021-03-11 14:18:36,146 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 268.3ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:18:36,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6079 states. [2021-03-11 14:18:36,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6079 to 3146. [2021-03-11 14:18:36,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3146 states, 3145 states have (on average 4.977742448330684) internal successors, (15655), 3145 states have internal predecessors, (15655), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:36,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3146 states to 3146 states and 15655 transitions. [2021-03-11 14:18:36,283 INFO L78 Accepts]: Start accepts. Automaton has 3146 states and 15655 transitions. Word has length 31 [2021-03-11 14:18:36,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:18:36,283 INFO L480 AbstractCegarLoop]: Abstraction has 3146 states and 15655 transitions. [2021-03-11 14:18:36,283 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:36,284 INFO L276 IsEmpty]: Start isEmpty. Operand 3146 states and 15655 transitions. [2021-03-11 14:18:36,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:18:36,288 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:18:36,288 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:18:36,288 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable141 [2021-03-11 14:18:36,288 INFO L428 AbstractCegarLoop]: === Iteration 143 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:18:36,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:18:36,289 INFO L82 PathProgramCache]: Analyzing trace with hash -1809223637, now seen corresponding path program 134 times [2021-03-11 14:18:36,289 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:18:36,289 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [493511604] [2021-03-11 14:18:36,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:18:36,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:18:36,301 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:18:36,301 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:18:36,302 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:18:36,302 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:18:36,306 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:18:36,306 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:18:36,313 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:18:36,313 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:18:36,323 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:18:36,323 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:18:36,337 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:18:36,338 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:18:36,356 INFO L142 QuantifierPusher]: treesize reduction 45, result has 51.1 percent of original size [2021-03-11 14:18:36,356 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-11 14:18:36,379 INFO L142 QuantifierPusher]: treesize reduction 54, result has 50.5 percent of original size [2021-03-11 14:18:36,380 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-11 14:18:36,409 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:18:36,409 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:18:36,443 INFO L142 QuantifierPusher]: treesize reduction 72, result has 49.7 percent of original size [2021-03-11 14:18:36,443 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-03-11 14:18:36,483 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:18:36,483 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:18:36,518 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:18:36,519 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [493511604] [2021-03-11 14:18:36,519 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:18:36,519 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:18:36,519 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811457102] [2021-03-11 14:18:36,519 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:18:36,519 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:18:36,519 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:18:36,519 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:18:36,519 INFO L87 Difference]: Start difference. First operand 3146 states and 15655 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:36,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:18:36,686 INFO L93 Difference]: Finished difference Result 6101 states and 27049 transitions. [2021-03-11 14:18:36,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:18:36,686 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:18:36,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:18:36,699 INFO L225 Difference]: With dead ends: 6101 [2021-03-11 14:18:36,699 INFO L226 Difference]: Without dead ends: 6068 [2021-03-11 14:18:36,699 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 237.3ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:18:36,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6068 states. [2021-03-11 14:18:36,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6068 to 3135. [2021-03-11 14:18:36,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3135 states, 3134 states have (on average 4.985641352903637) internal successors, (15625), 3134 states have internal predecessors, (15625), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:36,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3135 states to 3135 states and 15625 transitions. [2021-03-11 14:18:36,835 INFO L78 Accepts]: Start accepts. Automaton has 3135 states and 15625 transitions. Word has length 31 [2021-03-11 14:18:36,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:18:36,835 INFO L480 AbstractCegarLoop]: Abstraction has 3135 states and 15625 transitions. [2021-03-11 14:18:36,835 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:36,835 INFO L276 IsEmpty]: Start isEmpty. Operand 3135 states and 15625 transitions. [2021-03-11 14:18:36,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:18:36,840 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:18:36,840 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:18:36,840 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable142 [2021-03-11 14:18:36,840 INFO L428 AbstractCegarLoop]: === Iteration 144 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:18:36,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:18:36,840 INFO L82 PathProgramCache]: Analyzing trace with hash 936020827, now seen corresponding path program 135 times [2021-03-11 14:18:36,840 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:18:36,840 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1627572597] [2021-03-11 14:18:36,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:18:36,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:18:36,852 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:18:36,852 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:18:36,853 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:18:36,853 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:18:36,857 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:18:36,857 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:18:36,864 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:18:36,864 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:18:36,874 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:18:36,874 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:18:36,889 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:18:36,889 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:18:36,907 INFO L142 QuantifierPusher]: treesize reduction 45, result has 51.1 percent of original size [2021-03-11 14:18:36,907 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-11 14:18:36,930 INFO L142 QuantifierPusher]: treesize reduction 54, result has 50.5 percent of original size [2021-03-11 14:18:36,931 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-11 14:18:36,959 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:18:36,959 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:18:36,992 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:18:36,992 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:18:37,031 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:18:37,032 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:18:37,067 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:18:37,067 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1627572597] [2021-03-11 14:18:37,067 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:18:37,068 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:18:37,068 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [257130747] [2021-03-11 14:18:37,068 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:18:37,068 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:18:37,068 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:18:37,068 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:18:37,068 INFO L87 Difference]: Start difference. First operand 3135 states and 15625 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:37,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:18:37,287 INFO L93 Difference]: Finished difference Result 6093 states and 27034 transitions. [2021-03-11 14:18:37,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:18:37,287 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:18:37,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:18:37,300 INFO L225 Difference]: With dead ends: 6093 [2021-03-11 14:18:37,300 INFO L226 Difference]: Without dead ends: 6073 [2021-03-11 14:18:37,301 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 267.6ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:18:37,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6073 states. [2021-03-11 14:18:37,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6073 to 3143. [2021-03-11 14:18:37,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3143 states, 3142 states have (on average 4.977721196690006) internal successors, (15640), 3142 states have internal predecessors, (15640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:37,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3143 states to 3143 states and 15640 transitions. [2021-03-11 14:18:37,436 INFO L78 Accepts]: Start accepts. Automaton has 3143 states and 15640 transitions. Word has length 31 [2021-03-11 14:18:37,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:18:37,436 INFO L480 AbstractCegarLoop]: Abstraction has 3143 states and 15640 transitions. [2021-03-11 14:18:37,436 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:37,436 INFO L276 IsEmpty]: Start isEmpty. Operand 3143 states and 15640 transitions. [2021-03-11 14:18:37,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:18:37,441 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:18:37,441 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:18:37,441 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable143 [2021-03-11 14:18:37,441 INFO L428 AbstractCegarLoop]: === Iteration 145 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:18:37,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:18:37,442 INFO L82 PathProgramCache]: Analyzing trace with hash 1851102315, now seen corresponding path program 136 times [2021-03-11 14:18:37,442 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:18:37,442 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1010220901] [2021-03-11 14:18:37,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:18:37,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:18:37,454 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:18:37,454 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:18:37,454 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:18:37,454 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:18:37,458 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:18:37,459 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:18:37,465 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:18:37,466 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:18:37,476 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:18:37,476 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:18:37,490 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:18:37,490 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:18:37,508 INFO L142 QuantifierPusher]: treesize reduction 45, result has 51.1 percent of original size [2021-03-11 14:18:37,508 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-11 14:18:37,531 INFO L142 QuantifierPusher]: treesize reduction 54, result has 50.5 percent of original size [2021-03-11 14:18:37,531 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-11 14:18:37,559 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:18:37,560 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:18:37,592 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:18:37,593 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:18:37,632 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:18:37,632 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:18:37,668 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:18:37,668 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1010220901] [2021-03-11 14:18:37,668 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:18:37,669 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:18:37,669 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [882371201] [2021-03-11 14:18:37,669 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:18:37,669 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:18:37,669 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:18:37,669 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:18:37,669 INFO L87 Difference]: Start difference. First operand 3143 states and 15640 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:37,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:18:37,850 INFO L93 Difference]: Finished difference Result 6092 states and 27024 transitions. [2021-03-11 14:18:37,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:18:37,851 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:18:37,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:18:37,864 INFO L225 Difference]: With dead ends: 6092 [2021-03-11 14:18:37,864 INFO L226 Difference]: Without dead ends: 6065 [2021-03-11 14:18:37,864 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 265.3ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:18:37,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6065 states. [2021-03-11 14:18:37,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6065 to 3135. [2021-03-11 14:18:37,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3135 states, 3134 states have (on average 4.98308870453095) internal successors, (15617), 3134 states have internal predecessors, (15617), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:37,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3135 states to 3135 states and 15617 transitions. [2021-03-11 14:18:38,000 INFO L78 Accepts]: Start accepts. Automaton has 3135 states and 15617 transitions. Word has length 31 [2021-03-11 14:18:38,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:18:38,000 INFO L480 AbstractCegarLoop]: Abstraction has 3135 states and 15617 transitions. [2021-03-11 14:18:38,000 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:38,000 INFO L276 IsEmpty]: Start isEmpty. Operand 3135 states and 15617 transitions. [2021-03-11 14:18:38,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:18:38,005 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:18:38,005 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:18:38,005 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable144 [2021-03-11 14:18:38,005 INFO L428 AbstractCegarLoop]: === Iteration 146 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:18:38,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:18:38,005 INFO L82 PathProgramCache]: Analyzing trace with hash 788498715, now seen corresponding path program 137 times [2021-03-11 14:18:38,005 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:18:38,005 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1625442391] [2021-03-11 14:18:38,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:18:38,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:18:38,023 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:18:38,023 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:18:38,023 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:18:38,024 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:18:38,028 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:18:38,028 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:18:38,035 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:18:38,035 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:18:38,045 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:18:38,045 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:18:38,059 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:18:38,060 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:18:38,077 INFO L142 QuantifierPusher]: treesize reduction 45, result has 51.1 percent of original size [2021-03-11 14:18:38,078 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-11 14:18:38,101 INFO L142 QuantifierPusher]: treesize reduction 54, result has 50.5 percent of original size [2021-03-11 14:18:38,101 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-11 14:18:38,129 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:18:38,130 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:18:38,163 INFO L142 QuantifierPusher]: treesize reduction 72, result has 49.7 percent of original size [2021-03-11 14:18:38,163 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-03-11 14:18:38,202 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:18:38,203 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:18:38,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:18:38,238 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1625442391] [2021-03-11 14:18:38,238 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:18:38,238 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:18:38,238 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767832154] [2021-03-11 14:18:38,239 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:18:38,239 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:18:38,239 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:18:38,239 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:18:38,239 INFO L87 Difference]: Start difference. First operand 3135 states and 15617 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:38,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:18:38,407 INFO L93 Difference]: Finished difference Result 6098 states and 27034 transitions. [2021-03-11 14:18:38,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:18:38,407 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:18:38,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:18:38,420 INFO L225 Difference]: With dead ends: 6098 [2021-03-11 14:18:38,420 INFO L226 Difference]: Without dead ends: 6076 [2021-03-11 14:18:38,420 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 235.6ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:18:38,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6076 states. [2021-03-11 14:18:38,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6076 to 3144. [2021-03-11 14:18:38,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3144 states, 3143 states have (on average 4.9739102768056) internal successors, (15633), 3143 states have internal predecessors, (15633), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:38,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3144 states to 3144 states and 15633 transitions. [2021-03-11 14:18:38,557 INFO L78 Accepts]: Start accepts. Automaton has 3144 states and 15633 transitions. Word has length 31 [2021-03-11 14:18:38,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:18:38,557 INFO L480 AbstractCegarLoop]: Abstraction has 3144 states and 15633 transitions. [2021-03-11 14:18:38,557 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:38,557 INFO L276 IsEmpty]: Start isEmpty. Operand 3144 states and 15633 transitions. [2021-03-11 14:18:38,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:18:38,562 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:18:38,562 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:18:38,562 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable145 [2021-03-11 14:18:38,562 INFO L428 AbstractCegarLoop]: === Iteration 147 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:18:38,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:18:38,562 INFO L82 PathProgramCache]: Analyzing trace with hash 366012989, now seen corresponding path program 138 times [2021-03-11 14:18:38,562 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:18:38,562 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [570483730] [2021-03-11 14:18:38,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:18:38,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:18:38,580 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:18:38,580 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:18:38,580 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:18:38,581 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:18:38,585 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:18:38,585 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:18:38,593 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:18:38,593 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:18:38,605 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:18:38,606 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:18:38,623 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:18:38,624 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:18:38,648 INFO L142 QuantifierPusher]: treesize reduction 45, result has 51.1 percent of original size [2021-03-11 14:18:38,648 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-11 14:18:38,678 INFO L142 QuantifierPusher]: treesize reduction 54, result has 50.5 percent of original size [2021-03-11 14:18:38,679 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-11 14:18:38,715 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:18:38,716 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:18:38,759 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:18:38,759 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:18:38,809 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:18:38,810 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:18:38,850 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:18:38,850 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [570483730] [2021-03-11 14:18:38,850 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:18:38,850 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:18:38,850 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [429995816] [2021-03-11 14:18:38,850 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:18:38,850 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:18:38,851 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:18:38,851 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:18:38,851 INFO L87 Difference]: Start difference. First operand 3144 states and 15633 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:39,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:18:39,086 INFO L93 Difference]: Finished difference Result 6095 states and 27020 transitions. [2021-03-11 14:18:39,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:18:39,087 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:18:39,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:18:39,099 INFO L225 Difference]: With dead ends: 6095 [2021-03-11 14:18:39,100 INFO L226 Difference]: Without dead ends: 6056 [2021-03-11 14:18:39,100 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 316.1ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:18:39,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6056 states. [2021-03-11 14:18:39,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6056 to 3124. [2021-03-11 14:18:39,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3124 states, 3123 states have (on average 4.991354466858789) internal successors, (15588), 3123 states have internal predecessors, (15588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:39,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3124 states to 3124 states and 15588 transitions. [2021-03-11 14:18:39,240 INFO L78 Accepts]: Start accepts. Automaton has 3124 states and 15588 transitions. Word has length 31 [2021-03-11 14:18:39,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:18:39,240 INFO L480 AbstractCegarLoop]: Abstraction has 3124 states and 15588 transitions. [2021-03-11 14:18:39,240 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:39,240 INFO L276 IsEmpty]: Start isEmpty. Operand 3124 states and 15588 transitions. [2021-03-11 14:18:39,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:18:39,246 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:18:39,246 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:18:39,246 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable146 [2021-03-11 14:18:39,246 INFO L428 AbstractCegarLoop]: === Iteration 148 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:18:39,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:18:39,246 INFO L82 PathProgramCache]: Analyzing trace with hash -1927881787, now seen corresponding path program 139 times [2021-03-11 14:18:39,246 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:18:39,246 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1665107381] [2021-03-11 14:18:39,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:18:39,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:18:39,259 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:18:39,259 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:18:39,259 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:18:39,260 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:18:39,264 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:18:39,264 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:18:39,271 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:18:39,271 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:18:39,282 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:18:39,282 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:18:39,297 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:18:39,297 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:18:39,316 INFO L142 QuantifierPusher]: treesize reduction 45, result has 51.1 percent of original size [2021-03-11 14:18:39,316 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-11 14:18:39,339 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:18:39,340 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:18:39,368 INFO L142 QuantifierPusher]: treesize reduction 54, result has 55.4 percent of original size [2021-03-11 14:18:39,368 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-03-11 14:18:39,425 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:18:39,426 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:18:39,465 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:18:39,466 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:18:39,502 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:18:39,502 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1665107381] [2021-03-11 14:18:39,502 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:18:39,503 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:18:39,503 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2062367476] [2021-03-11 14:18:39,503 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:18:39,503 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:18:39,503 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:18:39,503 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:18:39,503 INFO L87 Difference]: Start difference. First operand 3124 states and 15588 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:39,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:18:39,676 INFO L93 Difference]: Finished difference Result 6083 states and 27009 transitions. [2021-03-11 14:18:39,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:18:39,677 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:18:39,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:18:39,690 INFO L225 Difference]: With dead ends: 6083 [2021-03-11 14:18:39,690 INFO L226 Difference]: Without dead ends: 6065 [2021-03-11 14:18:39,690 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 290.1ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:18:39,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6065 states. [2021-03-11 14:18:39,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6065 to 3140. [2021-03-11 14:18:39,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3140 states, 3139 states have (on average 4.980248486779229) internal successors, (15633), 3139 states have internal predecessors, (15633), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:39,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3140 states to 3140 states and 15633 transitions. [2021-03-11 14:18:39,830 INFO L78 Accepts]: Start accepts. Automaton has 3140 states and 15633 transitions. Word has length 31 [2021-03-11 14:18:39,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:18:39,830 INFO L480 AbstractCegarLoop]: Abstraction has 3140 states and 15633 transitions. [2021-03-11 14:18:39,830 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:39,830 INFO L276 IsEmpty]: Start isEmpty. Operand 3140 states and 15633 transitions. [2021-03-11 14:18:39,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:18:39,835 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:18:39,835 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:18:39,835 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable147 [2021-03-11 14:18:39,836 INFO L428 AbstractCegarLoop]: === Iteration 149 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:18:39,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:18:39,836 INFO L82 PathProgramCache]: Analyzing trace with hash 1099628331, now seen corresponding path program 140 times [2021-03-11 14:18:39,836 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:18:39,836 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [97028890] [2021-03-11 14:18:39,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:18:39,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:18:39,848 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:18:39,848 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:18:39,849 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:18:39,849 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:18:39,853 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:18:39,853 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:18:39,860 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:18:39,860 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:18:39,871 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:18:39,871 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:18:39,885 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:18:39,886 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:18:39,903 INFO L142 QuantifierPusher]: treesize reduction 45, result has 51.1 percent of original size [2021-03-11 14:18:39,904 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-11 14:18:39,927 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:18:39,927 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:18:39,955 INFO L142 QuantifierPusher]: treesize reduction 54, result has 55.4 percent of original size [2021-03-11 14:18:39,956 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-03-11 14:18:40,012 INFO L142 QuantifierPusher]: treesize reduction 72, result has 49.7 percent of original size [2021-03-11 14:18:40,012 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-03-11 14:18:40,053 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:18:40,053 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:18:40,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:18:40,089 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [97028890] [2021-03-11 14:18:40,089 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:18:40,089 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:18:40,089 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1423707535] [2021-03-11 14:18:40,089 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:18:40,089 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:18:40,090 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:18:40,090 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:18:40,090 INFO L87 Difference]: Start difference. First operand 3140 states and 15633 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:40,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:18:40,294 INFO L93 Difference]: Finished difference Result 6087 states and 27009 transitions. [2021-03-11 14:18:40,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:18:40,294 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:18:40,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:18:40,308 INFO L225 Difference]: With dead ends: 6087 [2021-03-11 14:18:40,308 INFO L226 Difference]: Without dead ends: 6057 [2021-03-11 14:18:40,308 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 262.0ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:18:40,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6057 states. [2021-03-11 14:18:40,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6057 to 3132. [2021-03-11 14:18:40,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3132 states, 3131 states have (on average 4.985627595017566) internal successors, (15610), 3131 states have internal predecessors, (15610), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:40,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3132 states to 3132 states and 15610 transitions. [2021-03-11 14:18:40,444 INFO L78 Accepts]: Start accepts. Automaton has 3132 states and 15610 transitions. Word has length 31 [2021-03-11 14:18:40,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:18:40,444 INFO L480 AbstractCegarLoop]: Abstraction has 3132 states and 15610 transitions. [2021-03-11 14:18:40,444 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:40,444 INFO L276 IsEmpty]: Start isEmpty. Operand 3132 states and 15610 transitions. [2021-03-11 14:18:40,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:18:40,449 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:18:40,449 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:18:40,449 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable148 [2021-03-11 14:18:40,449 INFO L428 AbstractCegarLoop]: === Iteration 150 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:18:40,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:18:40,449 INFO L82 PathProgramCache]: Analyzing trace with hash -2140037405, now seen corresponding path program 141 times [2021-03-11 14:18:40,449 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:18:40,449 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1886570602] [2021-03-11 14:18:40,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:18:40,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:18:40,466 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:18:40,467 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:18:40,467 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:18:40,467 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:18:40,471 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:18:40,472 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:18:40,479 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:18:40,480 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:18:40,492 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:18:40,492 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:18:40,510 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:18:40,510 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:18:40,529 INFO L142 QuantifierPusher]: treesize reduction 45, result has 51.1 percent of original size [2021-03-11 14:18:40,530 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-11 14:18:40,554 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:18:40,554 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:18:40,582 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:18:40,583 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:18:40,618 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:18:40,618 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:18:40,659 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:18:40,660 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:18:40,697 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:18:40,697 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1886570602] [2021-03-11 14:18:40,697 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:18:40,697 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:18:40,698 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422189733] [2021-03-11 14:18:40,698 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:18:40,698 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:18:40,698 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:18:40,698 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:18:40,698 INFO L87 Difference]: Start difference. First operand 3132 states and 15610 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:40,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:18:40,930 INFO L93 Difference]: Finished difference Result 6079 states and 26994 transitions. [2021-03-11 14:18:40,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:18:40,931 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:18:40,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:18:40,944 INFO L225 Difference]: With dead ends: 6079 [2021-03-11 14:18:40,944 INFO L226 Difference]: Without dead ends: 6061 [2021-03-11 14:18:40,944 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 277.7ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:18:41,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6061 states. [2021-03-11 14:18:41,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6061 to 3139. [2021-03-11 14:18:41,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3139 states, 3138 states have (on average 4.978648820905035) internal successors, (15623), 3138 states have internal predecessors, (15623), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:41,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3139 states to 3139 states and 15623 transitions. [2021-03-11 14:18:41,082 INFO L78 Accepts]: Start accepts. Automaton has 3139 states and 15623 transitions. Word has length 31 [2021-03-11 14:18:41,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:18:41,082 INFO L480 AbstractCegarLoop]: Abstraction has 3139 states and 15623 transitions. [2021-03-11 14:18:41,082 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:41,082 INFO L276 IsEmpty]: Start isEmpty. Operand 3139 states and 15623 transitions. [2021-03-11 14:18:41,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:18:41,087 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:18:41,087 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:18:41,087 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable149 [2021-03-11 14:18:41,087 INFO L428 AbstractCegarLoop]: === Iteration 151 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:18:41,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:18:41,087 INFO L82 PathProgramCache]: Analyzing trace with hash 464986987, now seen corresponding path program 142 times [2021-03-11 14:18:41,087 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:18:41,087 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [760028715] [2021-03-11 14:18:41,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:18:41,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:18:41,099 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:18:41,100 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:18:41,100 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:18:41,100 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:18:41,104 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:18:41,104 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:18:41,111 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:18:41,112 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:18:41,122 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:18:41,123 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:18:41,137 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:18:41,137 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:18:41,156 INFO L142 QuantifierPusher]: treesize reduction 45, result has 51.1 percent of original size [2021-03-11 14:18:41,156 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-11 14:18:41,180 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:18:41,180 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:18:41,208 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:18:41,209 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:18:41,242 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:18:41,243 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:18:41,283 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:18:41,283 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:18:41,320 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:18:41,321 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [760028715] [2021-03-11 14:18:41,321 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:18:41,321 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:18:41,321 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [775205018] [2021-03-11 14:18:41,321 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:18:41,321 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:18:41,321 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:18:41,321 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:18:41,321 INFO L87 Difference]: Start difference. First operand 3139 states and 15623 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:41,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:18:41,557 INFO L93 Difference]: Finished difference Result 6080 states and 26989 transitions. [2021-03-11 14:18:41,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:18:41,558 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:18:41,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:18:41,570 INFO L225 Difference]: With dead ends: 6080 [2021-03-11 14:18:41,571 INFO L226 Difference]: Without dead ends: 6054 [2021-03-11 14:18:41,571 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 273.3ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:18:41,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6054 states. [2021-03-11 14:18:41,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6054 to 3132. [2021-03-11 14:18:41,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3132 states, 3131 states have (on average 4.983391887575855) internal successors, (15603), 3131 states have internal predecessors, (15603), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:41,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3132 states to 3132 states and 15603 transitions. [2021-03-11 14:18:41,707 INFO L78 Accepts]: Start accepts. Automaton has 3132 states and 15603 transitions. Word has length 31 [2021-03-11 14:18:41,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:18:41,708 INFO L480 AbstractCegarLoop]: Abstraction has 3132 states and 15603 transitions. [2021-03-11 14:18:41,708 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:41,708 INFO L276 IsEmpty]: Start isEmpty. Operand 3132 states and 15603 transitions. [2021-03-11 14:18:41,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:18:41,712 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:18:41,712 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:18:41,713 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable150 [2021-03-11 14:18:41,713 INFO L428 AbstractCegarLoop]: === Iteration 152 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:18:41,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:18:41,713 INFO L82 PathProgramCache]: Analyzing trace with hash 251005859, now seen corresponding path program 143 times [2021-03-11 14:18:41,713 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:18:41,713 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [970716996] [2021-03-11 14:18:41,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:18:41,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:18:41,730 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:18:41,731 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:18:41,731 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:18:41,731 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:18:41,736 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:18:41,736 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:18:41,744 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:18:41,744 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:18:41,756 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:18:41,756 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:18:41,772 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:18:41,772 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:18:41,790 INFO L142 QuantifierPusher]: treesize reduction 45, result has 51.1 percent of original size [2021-03-11 14:18:41,791 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-11 14:18:41,814 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:18:41,814 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:18:41,842 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:18:41,843 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:18:41,876 INFO L142 QuantifierPusher]: treesize reduction 72, result has 49.7 percent of original size [2021-03-11 14:18:41,877 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-03-11 14:18:41,918 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:18:41,918 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:18:41,954 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:18:41,955 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [970716996] [2021-03-11 14:18:41,955 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:18:41,955 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:18:41,955 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1471972588] [2021-03-11 14:18:41,955 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:18:41,955 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:18:41,955 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:18:41,955 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:18:41,955 INFO L87 Difference]: Start difference. First operand 3132 states and 15603 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:42,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:18:42,107 INFO L93 Difference]: Finished difference Result 6089 states and 27006 transitions. [2021-03-11 14:18:42,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:18:42,108 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:18:42,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:18:42,121 INFO L225 Difference]: With dead ends: 6089 [2021-03-11 14:18:42,122 INFO L226 Difference]: Without dead ends: 6067 [2021-03-11 14:18:42,122 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 244.1ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:18:42,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6067 states. [2021-03-11 14:18:42,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6067 to 3141. [2021-03-11 14:18:42,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3141 states, 3140 states have (on average 4.974203821656051) internal successors, (15619), 3140 states have internal predecessors, (15619), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:42,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3141 states to 3141 states and 15619 transitions. [2021-03-11 14:18:42,267 INFO L78 Accepts]: Start accepts. Automaton has 3141 states and 15619 transitions. Word has length 31 [2021-03-11 14:18:42,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:18:42,267 INFO L480 AbstractCegarLoop]: Abstraction has 3141 states and 15619 transitions. [2021-03-11 14:18:42,267 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:42,267 INFO L276 IsEmpty]: Start isEmpty. Operand 3141 states and 15619 transitions. [2021-03-11 14:18:42,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:18:42,272 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:18:42,272 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:18:42,272 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable151 [2021-03-11 14:18:42,272 INFO L428 AbstractCegarLoop]: === Iteration 153 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:18:42,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:18:42,273 INFO L82 PathProgramCache]: Analyzing trace with hash -171479867, now seen corresponding path program 144 times [2021-03-11 14:18:42,273 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:18:42,273 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [850895547] [2021-03-11 14:18:42,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:18:42,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:18:42,285 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:18:42,285 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:18:42,286 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:18:42,286 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:18:42,290 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:18:42,290 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:18:42,298 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:18:42,298 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:18:42,309 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:18:42,309 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:18:42,325 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:18:42,325 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:18:42,344 INFO L142 QuantifierPusher]: treesize reduction 45, result has 51.1 percent of original size [2021-03-11 14:18:42,345 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-11 14:18:42,370 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:18:42,370 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:18:42,400 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:18:42,400 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:18:42,435 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:18:42,436 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:18:42,476 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:18:42,477 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:18:42,514 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:18:42,515 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [850895547] [2021-03-11 14:18:42,515 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:18:42,515 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:18:42,515 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2086864898] [2021-03-11 14:18:42,515 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:18:42,515 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:18:42,515 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:18:42,515 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:18:42,515 INFO L87 Difference]: Start difference. First operand 3141 states and 15619 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:42,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:18:42,688 INFO L93 Difference]: Finished difference Result 6086 states and 26992 transitions. [2021-03-11 14:18:42,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:18:42,689 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:18:42,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:18:42,702 INFO L225 Difference]: With dead ends: 6086 [2021-03-11 14:18:42,702 INFO L226 Difference]: Without dead ends: 6039 [2021-03-11 14:18:42,702 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 280.1ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:18:42,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6039 states. [2021-03-11 14:18:42,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6039 to 3113. [2021-03-11 14:18:42,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3113 states, 3112 states have (on average 5.000321336760925) internal successors, (15561), 3112 states have internal predecessors, (15561), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:42,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3113 states to 3113 states and 15561 transitions. [2021-03-11 14:18:42,842 INFO L78 Accepts]: Start accepts. Automaton has 3113 states and 15561 transitions. Word has length 31 [2021-03-11 14:18:42,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:18:42,842 INFO L480 AbstractCegarLoop]: Abstraction has 3113 states and 15561 transitions. [2021-03-11 14:18:42,842 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:42,842 INFO L276 IsEmpty]: Start isEmpty. Operand 3113 states and 15561 transitions. [2021-03-11 14:18:42,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:18:42,847 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:18:42,847 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:18:42,847 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable152 [2021-03-11 14:18:42,847 INFO L428 AbstractCegarLoop]: === Iteration 154 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:18:42,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:18:42,847 INFO L82 PathProgramCache]: Analyzing trace with hash -1727983863, now seen corresponding path program 145 times [2021-03-11 14:18:42,847 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:18:42,847 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [63207904] [2021-03-11 14:18:42,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:18:42,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:18:42,859 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:18:42,859 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:18:42,860 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:18:42,860 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:18:42,864 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:18:42,864 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:18:42,871 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:18:42,872 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:18:42,882 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:18:42,883 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:18:42,898 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:18:42,898 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:18:42,916 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:18:42,917 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:18:42,939 INFO L142 QuantifierPusher]: treesize reduction 27, result has 64.5 percent of original size [2021-03-11 14:18:42,940 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 14:18:42,967 INFO L142 QuantifierPusher]: treesize reduction 45, result has 59.1 percent of original size [2021-03-11 14:18:42,967 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:18:43,019 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:18:43,019 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:18:43,080 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:18:43,080 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:18:43,127 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:18:43,128 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [63207904] [2021-03-11 14:18:43,128 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:18:43,128 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:18:43,128 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1839724413] [2021-03-11 14:18:43,128 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:18:43,128 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:18:43,128 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:18:43,128 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:18:43,128 INFO L87 Difference]: Start difference. First operand 3113 states and 15561 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:43,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:18:43,304 INFO L93 Difference]: Finished difference Result 6036 states and 26896 transitions. [2021-03-11 14:18:43,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:18:43,305 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:18:43,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:18:43,318 INFO L225 Difference]: With dead ends: 6036 [2021-03-11 14:18:43,318 INFO L226 Difference]: Without dead ends: 6020 [2021-03-11 14:18:43,318 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 315.6ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:18:43,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6020 states. [2021-03-11 14:18:43,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6020 to 3130. [2021-03-11 14:18:43,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3130 states, 3129 states have (on average 4.992010226909556) internal successors, (15620), 3129 states have internal predecessors, (15620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:43,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3130 states to 3130 states and 15620 transitions. [2021-03-11 14:18:43,460 INFO L78 Accepts]: Start accepts. Automaton has 3130 states and 15620 transitions. Word has length 31 [2021-03-11 14:18:43,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:18:43,460 INFO L480 AbstractCegarLoop]: Abstraction has 3130 states and 15620 transitions. [2021-03-11 14:18:43,460 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:43,460 INFO L276 IsEmpty]: Start isEmpty. Operand 3130 states and 15620 transitions. [2021-03-11 14:18:43,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:18:43,465 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:18:43,465 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:18:43,465 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable153 [2021-03-11 14:18:43,465 INFO L428 AbstractCegarLoop]: === Iteration 155 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:18:43,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:18:43,465 INFO L82 PathProgramCache]: Analyzing trace with hash 1722011981, now seen corresponding path program 146 times [2021-03-11 14:18:43,466 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:18:43,466 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [600853145] [2021-03-11 14:18:43,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:18:43,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:18:43,477 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:18:43,478 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:18:43,478 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:18:43,478 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:18:43,482 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:18:43,482 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:18:43,490 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:18:43,490 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:18:43,501 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:18:43,501 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:18:43,516 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:18:43,516 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:18:43,534 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:18:43,535 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:18:43,558 INFO L142 QuantifierPusher]: treesize reduction 27, result has 64.5 percent of original size [2021-03-11 14:18:43,558 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 14:18:43,586 INFO L142 QuantifierPusher]: treesize reduction 45, result has 59.1 percent of original size [2021-03-11 14:18:43,587 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:18:43,640 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:18:43,641 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:18:43,683 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:18:43,683 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:18:43,721 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:18:43,721 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [600853145] [2021-03-11 14:18:43,721 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:18:43,721 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:18:43,721 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1551353819] [2021-03-11 14:18:43,721 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:18:43,721 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:18:43,722 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:18:43,722 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:18:43,722 INFO L87 Difference]: Start difference. First operand 3130 states and 15620 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:43,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:18:43,887 INFO L93 Difference]: Finished difference Result 6040 states and 26899 transitions. [2021-03-11 14:18:43,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:18:43,887 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:18:43,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:18:43,901 INFO L225 Difference]: With dead ends: 6040 [2021-03-11 14:18:43,902 INFO L226 Difference]: Without dead ends: 6015 [2021-03-11 14:18:43,902 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 296.6ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:18:43,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6015 states. [2021-03-11 14:18:44,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6015 to 3125. [2021-03-11 14:18:44,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3125 states, 3124 states have (on average 4.995518565941101) internal successors, (15606), 3124 states have internal predecessors, (15606), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:44,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3125 states to 3125 states and 15606 transitions. [2021-03-11 14:18:44,046 INFO L78 Accepts]: Start accepts. Automaton has 3125 states and 15606 transitions. Word has length 31 [2021-03-11 14:18:44,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:18:44,046 INFO L480 AbstractCegarLoop]: Abstraction has 3125 states and 15606 transitions. [2021-03-11 14:18:44,046 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:44,046 INFO L276 IsEmpty]: Start isEmpty. Operand 3125 states and 15606 transitions. [2021-03-11 14:18:44,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:18:44,051 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:18:44,051 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:18:44,051 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable154 [2021-03-11 14:18:44,051 INFO L428 AbstractCegarLoop]: === Iteration 156 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:18:44,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:18:44,052 INFO L82 PathProgramCache]: Analyzing trace with hash 1718360961, now seen corresponding path program 147 times [2021-03-11 14:18:44,052 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:18:44,052 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [971281105] [2021-03-11 14:18:44,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:18:44,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:18:44,070 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:18:44,070 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:18:44,070 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:18:44,071 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:18:44,075 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:18:44,075 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:18:44,083 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:18:44,084 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:18:44,096 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:18:44,097 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:18:44,114 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:18:44,115 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:18:44,141 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:18:44,141 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:18:44,170 INFO L142 QuantifierPusher]: treesize reduction 27, result has 64.5 percent of original size [2021-03-11 14:18:44,171 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 14:18:44,203 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:18:44,204 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:18:44,238 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:18:44,238 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:18:44,278 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:18:44,279 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:18:44,318 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:18:44,318 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [971281105] [2021-03-11 14:18:44,318 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:18:44,318 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:18:44,318 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1903475505] [2021-03-11 14:18:44,318 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:18:44,318 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:18:44,319 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:18:44,319 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:18:44,319 INFO L87 Difference]: Start difference. First operand 3125 states and 15606 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:44,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:18:44,479 INFO L93 Difference]: Finished difference Result 6034 states and 26887 transitions. [2021-03-11 14:18:44,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:18:44,479 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:18:44,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:18:44,492 INFO L225 Difference]: With dead ends: 6034 [2021-03-11 14:18:44,492 INFO L226 Difference]: Without dead ends: 6018 [2021-03-11 14:18:44,492 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 294.9ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:18:44,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6018 states. [2021-03-11 14:18:44,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6018 to 3130. [2021-03-11 14:18:44,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3130 states, 3129 states have (on average 4.990412272291467) internal successors, (15615), 3129 states have internal predecessors, (15615), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:44,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3130 states to 3130 states and 15615 transitions. [2021-03-11 14:18:44,671 INFO L78 Accepts]: Start accepts. Automaton has 3130 states and 15615 transitions. Word has length 31 [2021-03-11 14:18:44,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:18:44,671 INFO L480 AbstractCegarLoop]: Abstraction has 3130 states and 15615 transitions. [2021-03-11 14:18:44,671 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:44,671 INFO L276 IsEmpty]: Start isEmpty. Operand 3130 states and 15615 transitions. [2021-03-11 14:18:44,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:18:44,677 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:18:44,677 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:18:44,677 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable155 [2021-03-11 14:18:44,677 INFO L428 AbstractCegarLoop]: === Iteration 157 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:18:44,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:18:44,678 INFO L82 PathProgramCache]: Analyzing trace with hash -816553395, now seen corresponding path program 148 times [2021-03-11 14:18:44,678 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:18:44,678 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1017493700] [2021-03-11 14:18:44,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:18:44,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:18:44,690 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:18:44,690 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:18:44,690 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:18:44,690 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:18:44,694 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:18:44,695 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:18:44,701 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:18:44,701 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:18:44,712 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:18:44,712 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:18:44,726 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:18:44,726 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:18:44,744 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:18:44,744 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:18:44,765 INFO L142 QuantifierPusher]: treesize reduction 27, result has 64.5 percent of original size [2021-03-11 14:18:44,766 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 14:18:44,792 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:18:44,792 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:18:44,823 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:18:44,824 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:18:44,864 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:18:44,864 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:18:44,900 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:18:44,900 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1017493700] [2021-03-11 14:18:44,900 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:18:44,900 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:18:44,900 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [684010170] [2021-03-11 14:18:44,900 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:18:44,900 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:18:44,900 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:18:44,900 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:18:44,900 INFO L87 Difference]: Start difference. First operand 3130 states and 15615 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:45,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:18:45,063 INFO L93 Difference]: Finished difference Result 6036 states and 26886 transitions. [2021-03-11 14:18:45,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:18:45,064 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:18:45,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:18:45,077 INFO L225 Difference]: With dead ends: 6036 [2021-03-11 14:18:45,077 INFO L226 Difference]: Without dead ends: 6013 [2021-03-11 14:18:45,077 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 256.3ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:18:45,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6013 states. [2021-03-11 14:18:45,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6013 to 3125. [2021-03-11 14:18:45,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3125 states, 3124 states have (on average 4.993918053777208) internal successors, (15601), 3124 states have internal predecessors, (15601), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:45,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3125 states to 3125 states and 15601 transitions. [2021-03-11 14:18:45,218 INFO L78 Accepts]: Start accepts. Automaton has 3125 states and 15601 transitions. Word has length 31 [2021-03-11 14:18:45,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:18:45,218 INFO L480 AbstractCegarLoop]: Abstraction has 3125 states and 15601 transitions. [2021-03-11 14:18:45,218 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:45,218 INFO L276 IsEmpty]: Start isEmpty. Operand 3125 states and 15601 transitions. [2021-03-11 14:18:45,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:18:45,223 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:18:45,223 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:18:45,223 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable156 [2021-03-11 14:18:45,223 INFO L428 AbstractCegarLoop]: === Iteration 158 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:18:45,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:18:45,224 INFO L82 PathProgramCache]: Analyzing trace with hash 449078273, now seen corresponding path program 149 times [2021-03-11 14:18:45,224 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:18:45,224 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1363952223] [2021-03-11 14:18:45,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:18:45,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:18:45,236 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:18:45,236 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:18:45,237 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:18:45,237 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:18:45,241 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:18:45,241 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:18:45,248 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:18:45,248 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:18:45,258 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:18:45,258 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:18:45,272 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:18:45,272 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:18:45,290 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:18:45,290 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:18:45,312 INFO L142 QuantifierPusher]: treesize reduction 27, result has 64.5 percent of original size [2021-03-11 14:18:45,312 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 14:18:45,338 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:18:45,338 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:18:45,371 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:18:45,372 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:18:45,411 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:18:45,412 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:18:45,447 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:18:45,447 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1363952223] [2021-03-11 14:18:45,448 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:18:45,448 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:18:45,448 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [195496235] [2021-03-11 14:18:45,448 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:18:45,448 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:18:45,448 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:18:45,448 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:18:45,448 INFO L87 Difference]: Start difference. First operand 3125 states and 15601 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:45,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:18:45,612 INFO L93 Difference]: Finished difference Result 6044 states and 26904 transitions. [2021-03-11 14:18:45,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:18:45,612 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:18:45,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:18:45,625 INFO L225 Difference]: With dead ends: 6044 [2021-03-11 14:18:45,625 INFO L226 Difference]: Without dead ends: 6024 [2021-03-11 14:18:45,625 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 263.1ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:18:45,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6024 states. [2021-03-11 14:18:45,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6024 to 3132. [2021-03-11 14:18:45,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3132 states, 3131 states have (on average 4.9869051421271156) internal successors, (15614), 3131 states have internal predecessors, (15614), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:45,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3132 states to 3132 states and 15614 transitions. [2021-03-11 14:18:45,763 INFO L78 Accepts]: Start accepts. Automaton has 3132 states and 15614 transitions. Word has length 31 [2021-03-11 14:18:45,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:18:45,763 INFO L480 AbstractCegarLoop]: Abstraction has 3132 states and 15614 transitions. [2021-03-11 14:18:45,763 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:45,763 INFO L276 IsEmpty]: Start isEmpty. Operand 3132 states and 15614 transitions. [2021-03-11 14:18:45,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:18:45,768 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:18:45,768 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:18:45,768 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable157 [2021-03-11 14:18:45,768 INFO L428 AbstractCegarLoop]: === Iteration 159 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:18:45,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:18:45,769 INFO L82 PathProgramCache]: Analyzing trace with hash -1240864631, now seen corresponding path program 150 times [2021-03-11 14:18:45,769 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:18:45,769 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1820520377] [2021-03-11 14:18:45,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:18:45,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:18:45,780 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:18:45,781 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:18:45,781 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:18:45,781 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:18:45,785 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:18:45,785 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:18:45,792 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:18:45,792 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:18:45,802 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:18:45,802 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:18:45,816 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:18:45,817 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:18:45,834 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:18:45,834 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:18:45,862 INFO L142 QuantifierPusher]: treesize reduction 27, result has 64.5 percent of original size [2021-03-11 14:18:45,862 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 14:18:45,895 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:18:45,896 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:18:45,935 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:18:45,935 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:18:45,974 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:18:45,974 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:18:46,010 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:18:46,010 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1820520377] [2021-03-11 14:18:46,010 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:18:46,010 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:18:46,011 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [472355041] [2021-03-11 14:18:46,011 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:18:46,011 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:18:46,011 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:18:46,011 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:18:46,011 INFO L87 Difference]: Start difference. First operand 3132 states and 15614 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:46,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:18:46,211 INFO L93 Difference]: Finished difference Result 6042 states and 26893 transitions. [2021-03-11 14:18:46,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:18:46,212 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:18:46,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:18:46,225 INFO L225 Difference]: With dead ends: 6042 [2021-03-11 14:18:46,225 INFO L226 Difference]: Without dead ends: 6012 [2021-03-11 14:18:46,225 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 274.8ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:18:46,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6012 states. [2021-03-11 14:18:46,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6012 to 3120. [2021-03-11 14:18:46,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3120 states, 3119 states have (on average 4.9974350753446615) internal successors, (15587), 3119 states have internal predecessors, (15587), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:46,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3120 states to 3120 states and 15587 transitions. [2021-03-11 14:18:46,362 INFO L78 Accepts]: Start accepts. Automaton has 3120 states and 15587 transitions. Word has length 31 [2021-03-11 14:18:46,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:18:46,362 INFO L480 AbstractCegarLoop]: Abstraction has 3120 states and 15587 transitions. [2021-03-11 14:18:46,362 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:46,362 INFO L276 IsEmpty]: Start isEmpty. Operand 3120 states and 15587 transitions. [2021-03-11 14:18:46,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:18:46,367 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:18:46,367 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:18:46,367 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable158 [2021-03-11 14:18:46,367 INFO L428 AbstractCegarLoop]: === Iteration 160 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:18:46,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:18:46,368 INFO L82 PathProgramCache]: Analyzing trace with hash 16380143, now seen corresponding path program 151 times [2021-03-11 14:18:46,368 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:18:46,368 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1447274761] [2021-03-11 14:18:46,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:18:46,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:18:46,382 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:18:46,383 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:18:46,383 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:18:46,383 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:18:46,387 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:18:46,387 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:18:46,394 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:18:46,394 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:18:46,404 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:18:46,405 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:18:46,418 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:18:46,419 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:18:46,436 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:18:46,437 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:18:46,459 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:18:46,459 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:18:46,502 INFO L142 QuantifierPusher]: treesize reduction 45, result has 59.1 percent of original size [2021-03-11 14:18:46,502 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:18:46,553 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:18:46,553 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:18:46,591 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:18:46,592 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:18:46,627 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:18:46,627 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1447274761] [2021-03-11 14:18:46,627 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:18:46,627 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:18:46,627 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1688440417] [2021-03-11 14:18:46,627 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:18:46,628 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:18:46,628 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:18:46,628 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:18:46,628 INFO L87 Difference]: Start difference. First operand 3120 states and 15587 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:46,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:18:46,785 INFO L93 Difference]: Finished difference Result 6047 states and 26914 transitions. [2021-03-11 14:18:46,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:18:46,785 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:18:46,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:18:46,798 INFO L225 Difference]: With dead ends: 6047 [2021-03-11 14:18:46,798 INFO L226 Difference]: Without dead ends: 6031 [2021-03-11 14:18:46,799 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 291.3ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:18:46,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6031 states. [2021-03-11 14:18:46,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6031 to 3132. [2021-03-11 14:18:46,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3132 states, 3131 states have (on average 4.9888214627914405) internal successors, (15620), 3131 states have internal predecessors, (15620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:46,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3132 states to 3132 states and 15620 transitions. [2021-03-11 14:18:46,936 INFO L78 Accepts]: Start accepts. Automaton has 3132 states and 15620 transitions. Word has length 31 [2021-03-11 14:18:46,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:18:46,936 INFO L480 AbstractCegarLoop]: Abstraction has 3132 states and 15620 transitions. [2021-03-11 14:18:46,936 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:46,936 INFO L276 IsEmpty]: Start isEmpty. Operand 3132 states and 15620 transitions. [2021-03-11 14:18:46,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:18:46,941 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:18:46,941 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:18:46,941 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable159 [2021-03-11 14:18:46,941 INFO L428 AbstractCegarLoop]: === Iteration 161 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:18:46,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:18:46,941 INFO L82 PathProgramCache]: Analyzing trace with hash -828591309, now seen corresponding path program 152 times [2021-03-11 14:18:46,941 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:18:46,942 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [351674166] [2021-03-11 14:18:46,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:18:46,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:18:46,954 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:18:46,954 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:18:46,954 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:18:46,955 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:18:46,958 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:18:46,959 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:18:46,965 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:18:46,966 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:18:46,976 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:18:46,976 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:18:46,990 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:18:46,990 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:18:47,008 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:18:47,009 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:18:47,031 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:18:47,031 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:18:47,075 INFO L142 QuantifierPusher]: treesize reduction 45, result has 59.1 percent of original size [2021-03-11 14:18:47,075 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:18:47,126 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:18:47,127 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:18:47,167 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:18:47,167 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:18:47,203 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:18:47,203 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [351674166] [2021-03-11 14:18:47,203 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:18:47,203 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:18:47,204 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [873519509] [2021-03-11 14:18:47,204 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:18:47,204 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:18:47,204 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:18:47,204 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:18:47,204 INFO L87 Difference]: Start difference. First operand 3132 states and 15620 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:47,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:18:47,367 INFO L93 Difference]: Finished difference Result 6051 states and 26917 transitions. [2021-03-11 14:18:47,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:18:47,367 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:18:47,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:18:47,380 INFO L225 Difference]: With dead ends: 6051 [2021-03-11 14:18:47,380 INFO L226 Difference]: Without dead ends: 6026 [2021-03-11 14:18:47,381 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 300.9ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:18:47,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6026 states. [2021-03-11 14:18:47,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6026 to 3127. [2021-03-11 14:18:47,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3127 states, 3126 states have (on average 4.992322456813819) internal successors, (15606), 3126 states have internal predecessors, (15606), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:47,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3127 states to 3127 states and 15606 transitions. [2021-03-11 14:18:47,518 INFO L78 Accepts]: Start accepts. Automaton has 3127 states and 15606 transitions. Word has length 31 [2021-03-11 14:18:47,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:18:47,518 INFO L480 AbstractCegarLoop]: Abstraction has 3127 states and 15606 transitions. [2021-03-11 14:18:47,518 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:47,518 INFO L276 IsEmpty]: Start isEmpty. Operand 3127 states and 15606 transitions. [2021-03-11 14:18:47,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:18:47,523 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:18:47,523 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:18:47,523 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable160 [2021-03-11 14:18:47,523 INFO L428 AbstractCegarLoop]: === Iteration 162 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:18:47,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:18:47,523 INFO L82 PathProgramCache]: Analyzing trace with hash -1468709183, now seen corresponding path program 153 times [2021-03-11 14:18:47,523 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:18:47,523 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1748646624] [2021-03-11 14:18:47,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:18:47,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:18:47,535 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:18:47,535 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:18:47,536 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:18:47,536 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:18:47,540 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:18:47,540 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:18:47,547 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:18:47,547 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:18:47,557 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:18:47,557 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:18:47,571 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:18:47,572 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:18:47,589 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:18:47,589 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:18:47,611 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:18:47,611 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:18:47,654 INFO L142 QuantifierPusher]: treesize reduction 54, result has 55.4 percent of original size [2021-03-11 14:18:47,655 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-03-11 14:18:47,705 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:18:47,705 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:18:47,743 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:18:47,743 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:18:47,779 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:18:47,779 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1748646624] [2021-03-11 14:18:47,779 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:18:47,779 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:18:47,779 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1338111245] [2021-03-11 14:18:47,779 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:18:47,779 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:18:47,779 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:18:47,779 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:18:47,780 INFO L87 Difference]: Start difference. First operand 3127 states and 15606 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:47,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:18:47,937 INFO L93 Difference]: Finished difference Result 6050 states and 26914 transitions. [2021-03-11 14:18:47,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:18:47,938 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:18:47,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:18:47,951 INFO L225 Difference]: With dead ends: 6050 [2021-03-11 14:18:47,951 INFO L226 Difference]: Without dead ends: 6034 [2021-03-11 14:18:47,951 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 290.4ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:18:48,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6034 states. [2021-03-11 14:18:48,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6034 to 3133. [2021-03-11 14:18:48,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3133 states, 3132 states have (on average 4.986270753512133) internal successors, (15617), 3132 states have internal predecessors, (15617), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:48,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3133 states to 3133 states and 15617 transitions. [2021-03-11 14:18:48,087 INFO L78 Accepts]: Start accepts. Automaton has 3133 states and 15617 transitions. Word has length 31 [2021-03-11 14:18:48,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:18:48,087 INFO L480 AbstractCegarLoop]: Abstraction has 3133 states and 15617 transitions. [2021-03-11 14:18:48,087 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:48,087 INFO L276 IsEmpty]: Start isEmpty. Operand 3133 states and 15617 transitions. [2021-03-11 14:18:48,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:18:48,092 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:18:48,092 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:18:48,092 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable161 [2021-03-11 14:18:48,092 INFO L428 AbstractCegarLoop]: === Iteration 163 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:18:48,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:18:48,092 INFO L82 PathProgramCache]: Analyzing trace with hash -976113421, now seen corresponding path program 154 times [2021-03-11 14:18:48,092 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:18:48,093 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [254859419] [2021-03-11 14:18:48,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:18:48,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:18:48,107 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:18:48,108 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:18:48,108 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:18:48,109 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:18:48,113 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:18:48,113 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:18:48,120 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:18:48,121 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:18:48,133 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:18:48,134 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:18:48,153 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:18:48,153 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:18:48,176 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:18:48,176 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:18:48,203 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:18:48,204 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:18:48,247 INFO L142 QuantifierPusher]: treesize reduction 54, result has 55.4 percent of original size [2021-03-11 14:18:48,247 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-03-11 14:18:48,297 INFO L142 QuantifierPusher]: treesize reduction 72, result has 49.7 percent of original size [2021-03-11 14:18:48,298 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-03-11 14:18:48,356 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:18:48,357 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:18:48,392 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:18:48,393 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [254859419] [2021-03-11 14:18:48,393 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:18:48,393 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:18:48,393 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [864198576] [2021-03-11 14:18:48,393 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:18:48,393 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:18:48,393 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:18:48,393 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:18:48,393 INFO L87 Difference]: Start difference. First operand 3133 states and 15617 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:48,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:18:48,528 INFO L93 Difference]: Finished difference Result 6056 states and 26920 transitions. [2021-03-11 14:18:48,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:18:48,528 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:18:48,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:18:48,541 INFO L225 Difference]: With dead ends: 6056 [2021-03-11 14:18:48,541 INFO L226 Difference]: Without dead ends: 6028 [2021-03-11 14:18:48,541 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 301.7ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:18:48,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6028 states. [2021-03-11 14:18:48,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6028 to 3127. [2021-03-11 14:18:48,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3127 states, 3126 states have (on average 4.990403071017274) internal successors, (15600), 3126 states have internal predecessors, (15600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:48,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3127 states to 3127 states and 15600 transitions. [2021-03-11 14:18:48,679 INFO L78 Accepts]: Start accepts. Automaton has 3127 states and 15600 transitions. Word has length 31 [2021-03-11 14:18:48,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:18:48,679 INFO L480 AbstractCegarLoop]: Abstraction has 3127 states and 15600 transitions. [2021-03-11 14:18:48,679 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:48,679 INFO L276 IsEmpty]: Start isEmpty. Operand 3127 states and 15600 transitions. [2021-03-11 14:18:48,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:18:48,684 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:18:48,685 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:18:48,685 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable162 [2021-03-11 14:18:48,685 INFO L428 AbstractCegarLoop]: === Iteration 164 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:18:48,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:18:48,685 INFO L82 PathProgramCache]: Analyzing trace with hash 1556975425, now seen corresponding path program 155 times [2021-03-11 14:18:48,685 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:18:48,685 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1985838243] [2021-03-11 14:18:48,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:18:48,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:18:48,703 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:18:48,704 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:18:48,704 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:18:48,704 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:18:48,708 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:18:48,709 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:18:48,716 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:18:48,717 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:18:48,730 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:18:48,730 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:18:48,750 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:18:48,750 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:18:48,773 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:18:48,773 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:18:48,795 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:18:48,796 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:18:48,839 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:18:48,840 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:18:48,874 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:18:48,874 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:18:48,913 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:18:48,914 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:18:48,949 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:18:48,949 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1985838243] [2021-03-11 14:18:48,950 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:18:48,950 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:18:48,950 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [650558449] [2021-03-11 14:18:48,950 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:18:48,950 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:18:48,950 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:18:48,950 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:18:48,950 INFO L87 Difference]: Start difference. First operand 3127 states and 15600 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:49,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:18:49,112 INFO L93 Difference]: Finished difference Result 6063 states and 26937 transitions. [2021-03-11 14:18:49,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:18:49,113 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:18:49,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:18:49,126 INFO L225 Difference]: With dead ends: 6063 [2021-03-11 14:18:49,126 INFO L226 Difference]: Without dead ends: 6043 [2021-03-11 14:18:49,126 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 296.1ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:18:49,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6043 states. [2021-03-11 14:18:49,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6043 to 3138. [2021-03-11 14:18:49,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3138 states, 3137 states have (on average 4.9792795664647755) internal successors, (15620), 3137 states have internal predecessors, (15620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:49,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3138 states to 3138 states and 15620 transitions. [2021-03-11 14:18:49,262 INFO L78 Accepts]: Start accepts. Automaton has 3138 states and 15620 transitions. Word has length 31 [2021-03-11 14:18:49,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:18:49,262 INFO L480 AbstractCegarLoop]: Abstraction has 3138 states and 15620 transitions. [2021-03-11 14:18:49,262 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:49,262 INFO L276 IsEmpty]: Start isEmpty. Operand 3138 states and 15620 transitions. [2021-03-11 14:18:49,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:18:49,267 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:18:49,267 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:18:49,267 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable163 [2021-03-11 14:18:49,267 INFO L428 AbstractCegarLoop]: === Iteration 165 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:18:49,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:18:49,267 INFO L82 PathProgramCache]: Analyzing trace with hash -1400424657, now seen corresponding path program 156 times [2021-03-11 14:18:49,267 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:18:49,267 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1798364631] [2021-03-11 14:18:49,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:18:49,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:18:49,279 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:18:49,279 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:18:49,280 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:18:49,280 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:18:49,284 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:18:49,284 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:18:49,291 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:18:49,291 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:18:49,301 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:18:49,302 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:18:49,316 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:18:49,316 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:18:49,334 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:18:49,334 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:18:49,362 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:18:49,362 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:18:49,411 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:18:49,412 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:18:49,446 INFO L142 QuantifierPusher]: treesize reduction 72, result has 49.7 percent of original size [2021-03-11 14:18:49,446 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-03-11 14:18:49,486 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:18:49,487 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:18:49,522 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:18:49,522 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1798364631] [2021-03-11 14:18:49,522 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:18:49,522 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:18:49,523 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2021762362] [2021-03-11 14:18:49,523 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:18:49,523 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:18:49,523 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:18:49,523 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:18:49,523 INFO L87 Difference]: Start difference. First operand 3138 states and 15620 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:49,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:18:49,655 INFO L93 Difference]: Finished difference Result 6065 states and 26931 transitions. [2021-03-11 14:18:49,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:18:49,656 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:18:49,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:18:49,669 INFO L225 Difference]: With dead ends: 6065 [2021-03-11 14:18:49,669 INFO L226 Difference]: Without dead ends: 6025 [2021-03-11 14:18:49,669 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 262.9ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:18:49,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6025 states. [2021-03-11 14:18:49,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6025 to 3120. [2021-03-11 14:18:49,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3120 states, 3119 states have (on average 4.995190766271241) internal successors, (15580), 3119 states have internal predecessors, (15580), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:49,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3120 states to 3120 states and 15580 transitions. [2021-03-11 14:18:49,807 INFO L78 Accepts]: Start accepts. Automaton has 3120 states and 15580 transitions. Word has length 31 [2021-03-11 14:18:49,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:18:49,807 INFO L480 AbstractCegarLoop]: Abstraction has 3120 states and 15580 transitions. [2021-03-11 14:18:49,807 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:49,807 INFO L276 IsEmpty]: Start isEmpty. Operand 3120 states and 15580 transitions. [2021-03-11 14:18:49,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:18:49,812 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:18:49,812 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:18:49,812 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable164 [2021-03-11 14:18:49,812 INFO L428 AbstractCegarLoop]: === Iteration 166 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:18:49,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:18:49,812 INFO L82 PathProgramCache]: Analyzing trace with hash -1369735185, now seen corresponding path program 157 times [2021-03-11 14:18:49,812 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:18:49,812 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [466251609] [2021-03-11 14:18:49,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:18:49,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:18:49,835 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:18:49,835 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:18:49,836 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:18:49,836 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:18:49,840 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:18:49,841 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:18:49,848 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:18:49,848 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:18:49,860 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:18:49,860 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:18:49,874 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:18:49,875 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:18:49,893 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:18:49,893 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:18:49,915 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:18:49,916 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:18:49,963 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:18:49,963 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:18:49,997 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:18:49,998 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:18:50,037 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:18:50,037 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:18:50,074 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:18:50,074 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [466251609] [2021-03-11 14:18:50,074 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:18:50,074 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:18:50,074 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [370777026] [2021-03-11 14:18:50,074 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:18:50,074 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:18:50,074 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:18:50,075 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:18:50,075 INFO L87 Difference]: Start difference. First operand 3120 states and 15580 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:50,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:18:50,236 INFO L93 Difference]: Finished difference Result 6039 states and 26890 transitions. [2021-03-11 14:18:50,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:18:50,236 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:18:50,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:18:50,249 INFO L225 Difference]: With dead ends: 6039 [2021-03-11 14:18:50,249 INFO L226 Difference]: Without dead ends: 6023 [2021-03-11 14:18:50,249 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 286.4ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:18:50,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6023 states. [2021-03-11 14:18:50,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6023 to 3131. [2021-03-11 14:18:50,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3131 states, 3130 states have (on average 4.987539936102237) internal successors, (15611), 3130 states have internal predecessors, (15611), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:50,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3131 states to 3131 states and 15611 transitions. [2021-03-11 14:18:50,389 INFO L78 Accepts]: Start accepts. Automaton has 3131 states and 15611 transitions. Word has length 31 [2021-03-11 14:18:50,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:18:50,389 INFO L480 AbstractCegarLoop]: Abstraction has 3131 states and 15611 transitions. [2021-03-11 14:18:50,389 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:50,389 INFO L276 IsEmpty]: Start isEmpty. Operand 3131 states and 15611 transitions. [2021-03-11 14:18:50,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:18:50,394 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:18:50,394 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:18:50,394 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable165 [2021-03-11 14:18:50,394 INFO L428 AbstractCegarLoop]: === Iteration 167 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:18:50,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:18:50,394 INFO L82 PathProgramCache]: Analyzing trace with hash 390317755, now seen corresponding path program 158 times [2021-03-11 14:18:50,394 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:18:50,394 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1560969052] [2021-03-11 14:18:50,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:18:50,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:18:50,412 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:18:50,413 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:18:50,413 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:18:50,413 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:18:50,417 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:18:50,418 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:18:50,425 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:18:50,426 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:18:50,438 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:18:50,438 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:18:50,457 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:18:50,458 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:18:50,481 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:18:50,482 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:18:50,510 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:18:50,510 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:18:50,570 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:18:50,571 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:18:50,612 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:18:50,613 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:18:50,664 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:18:50,664 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:18:50,711 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:18:50,711 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1560969052] [2021-03-11 14:18:50,711 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:18:50,711 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:18:50,711 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424899303] [2021-03-11 14:18:50,712 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:18:50,712 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:18:50,712 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:18:50,712 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:18:50,712 INFO L87 Difference]: Start difference. First operand 3131 states and 15611 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:50,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:18:50,918 INFO L93 Difference]: Finished difference Result 6041 states and 26889 transitions. [2021-03-11 14:18:50,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:18:50,919 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:18:50,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:18:50,932 INFO L225 Difference]: With dead ends: 6041 [2021-03-11 14:18:50,932 INFO L226 Difference]: Without dead ends: 6018 [2021-03-11 14:18:50,932 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 349.9ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:18:51,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6018 states. [2021-03-11 14:18:51,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6018 to 3126. [2021-03-11 14:18:51,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3126 states, 3125 states have (on average 4.99104) internal successors, (15597), 3125 states have internal predecessors, (15597), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:51,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3126 states to 3126 states and 15597 transitions. [2021-03-11 14:18:51,070 INFO L78 Accepts]: Start accepts. Automaton has 3126 states and 15597 transitions. Word has length 31 [2021-03-11 14:18:51,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:18:51,070 INFO L480 AbstractCegarLoop]: Abstraction has 3126 states and 15597 transitions. [2021-03-11 14:18:51,070 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:51,070 INFO L276 IsEmpty]: Start isEmpty. Operand 3126 states and 15597 transitions. [2021-03-11 14:18:51,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:18:51,075 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:18:51,075 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:18:51,075 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable166 [2021-03-11 14:18:51,076 INFO L428 AbstractCegarLoop]: === Iteration 168 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:18:51,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:18:51,076 INFO L82 PathProgramCache]: Analyzing trace with hash -2006202039, now seen corresponding path program 159 times [2021-03-11 14:18:51,076 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:18:51,076 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [548735043] [2021-03-11 14:18:51,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:18:51,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:18:51,089 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:18:51,089 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:18:51,090 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:18:51,090 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:18:51,094 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:18:51,094 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:18:51,101 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:18:51,101 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:18:51,112 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:18:51,112 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:18:51,127 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:18:51,127 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:18:51,145 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:18:51,145 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:18:51,167 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:18:51,168 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:18:51,215 INFO L142 QuantifierPusher]: treesize reduction 54, result has 55.4 percent of original size [2021-03-11 14:18:51,215 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-03-11 14:18:51,266 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:18:51,267 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:18:51,306 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:18:51,307 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:18:51,343 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:18:51,343 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [548735043] [2021-03-11 14:18:51,343 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:18:51,343 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:18:51,343 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1567348859] [2021-03-11 14:18:51,343 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:18:51,343 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:18:51,343 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:18:51,344 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:18:51,344 INFO L87 Difference]: Start difference. First operand 3126 states and 15597 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:51,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:18:51,502 INFO L93 Difference]: Finished difference Result 6044 states and 26894 transitions. [2021-03-11 14:18:51,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:18:51,502 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:18:51,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:18:51,515 INFO L225 Difference]: With dead ends: 6044 [2021-03-11 14:18:51,516 INFO L226 Difference]: Without dead ends: 6028 [2021-03-11 14:18:51,516 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 301.4ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:18:51,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6028 states. [2021-03-11 14:18:51,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6028 to 3132. [2021-03-11 14:18:51,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3132 states, 3131 states have (on average 4.9849888214627915) internal successors, (15608), 3131 states have internal predecessors, (15608), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:51,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3132 states to 3132 states and 15608 transitions. [2021-03-11 14:18:51,654 INFO L78 Accepts]: Start accepts. Automaton has 3132 states and 15608 transitions. Word has length 31 [2021-03-11 14:18:51,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:18:51,654 INFO L480 AbstractCegarLoop]: Abstraction has 3132 states and 15608 transitions. [2021-03-11 14:18:51,654 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:51,654 INFO L276 IsEmpty]: Start isEmpty. Operand 3132 states and 15608 transitions. [2021-03-11 14:18:51,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:18:51,659 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:18:51,659 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:18:51,659 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable167 [2021-03-11 14:18:51,659 INFO L428 AbstractCegarLoop]: === Iteration 169 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:18:51,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:18:51,659 INFO L82 PathProgramCache]: Analyzing trace with hash -1513606277, now seen corresponding path program 160 times [2021-03-11 14:18:51,659 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:18:51,660 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1306233995] [2021-03-11 14:18:51,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:18:51,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:18:51,671 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:18:51,671 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:18:51,672 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:18:51,672 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:18:51,676 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:18:51,676 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:18:51,683 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:18:51,683 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:18:51,694 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:18:51,694 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:18:51,708 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:18:51,709 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:18:51,727 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:18:51,727 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:18:51,750 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:18:51,750 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:18:51,797 INFO L142 QuantifierPusher]: treesize reduction 54, result has 55.4 percent of original size [2021-03-11 14:18:51,797 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-03-11 14:18:51,848 INFO L142 QuantifierPusher]: treesize reduction 72, result has 49.7 percent of original size [2021-03-11 14:18:51,849 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-03-11 14:18:51,890 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:18:51,890 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:18:51,926 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:18:51,927 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1306233995] [2021-03-11 14:18:51,927 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:18:51,927 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:18:51,927 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [649755393] [2021-03-11 14:18:51,927 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:18:51,927 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:18:51,927 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:18:51,927 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:18:51,927 INFO L87 Difference]: Start difference. First operand 3132 states and 15608 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:52,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:18:52,073 INFO L93 Difference]: Finished difference Result 6050 states and 26900 transitions. [2021-03-11 14:18:52,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:18:52,073 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:18:52,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:18:52,086 INFO L225 Difference]: With dead ends: 6050 [2021-03-11 14:18:52,086 INFO L226 Difference]: Without dead ends: 6022 [2021-03-11 14:18:52,086 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 275.2ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:18:52,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6022 states. [2021-03-11 14:18:52,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6022 to 3126. [2021-03-11 14:18:52,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3126 states, 3125 states have (on average 4.98912) internal successors, (15591), 3125 states have internal predecessors, (15591), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:52,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3126 states to 3126 states and 15591 transitions. [2021-03-11 14:18:52,222 INFO L78 Accepts]: Start accepts. Automaton has 3126 states and 15591 transitions. Word has length 31 [2021-03-11 14:18:52,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:18:52,222 INFO L480 AbstractCegarLoop]: Abstraction has 3126 states and 15591 transitions. [2021-03-11 14:18:52,223 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:52,223 INFO L276 IsEmpty]: Start isEmpty. Operand 3126 states and 15591 transitions. [2021-03-11 14:18:52,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:18:52,227 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:18:52,227 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:18:52,227 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable168 [2021-03-11 14:18:52,228 INFO L428 AbstractCegarLoop]: === Iteration 170 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:18:52,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:18:52,228 INFO L82 PathProgramCache]: Analyzing trace with hash -1519082807, now seen corresponding path program 161 times [2021-03-11 14:18:52,228 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:18:52,228 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1783031908] [2021-03-11 14:18:52,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:18:52,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:18:52,240 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:18:52,240 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:18:52,241 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:18:52,241 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:18:52,245 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:18:52,245 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:18:52,252 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:18:52,252 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:18:52,262 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:18:52,263 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:18:52,297 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:18:52,297 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:18:52,317 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:18:52,317 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:18:52,339 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:18:52,339 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:18:52,386 INFO L142 QuantifierPusher]: treesize reduction 54, result has 55.4 percent of original size [2021-03-11 14:18:52,386 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-03-11 14:18:52,443 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:18:52,444 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:18:52,483 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:18:52,484 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:18:52,519 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:18:52,520 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1783031908] [2021-03-11 14:18:52,520 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:18:52,520 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:18:52,520 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1969228990] [2021-03-11 14:18:52,520 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:18:52,520 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:18:52,520 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:18:52,520 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:18:52,520 INFO L87 Difference]: Start difference. First operand 3126 states and 15591 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:52,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:18:52,695 INFO L93 Difference]: Finished difference Result 6050 states and 26902 transitions. [2021-03-11 14:18:52,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:18:52,696 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:18:52,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:18:52,709 INFO L225 Difference]: With dead ends: 6050 [2021-03-11 14:18:52,710 INFO L226 Difference]: Without dead ends: 6032 [2021-03-11 14:18:52,710 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 325.7ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:18:52,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6032 states. [2021-03-11 14:18:52,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6032 to 3134. [2021-03-11 14:18:52,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3134 states, 3133 states have (on average 4.981168209383977) internal successors, (15606), 3133 states have internal predecessors, (15606), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:52,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3134 states to 3134 states and 15606 transitions. [2021-03-11 14:18:52,850 INFO L78 Accepts]: Start accepts. Automaton has 3134 states and 15606 transitions. Word has length 31 [2021-03-11 14:18:52,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:18:52,851 INFO L480 AbstractCegarLoop]: Abstraction has 3134 states and 15606 transitions. [2021-03-11 14:18:52,851 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:52,851 INFO L276 IsEmpty]: Start isEmpty. Operand 3134 states and 15606 transitions. [2021-03-11 14:18:52,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:18:52,856 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:18:52,856 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:18:52,856 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable169 [2021-03-11 14:18:52,856 INFO L428 AbstractCegarLoop]: === Iteration 171 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:18:52,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:18:52,856 INFO L82 PathProgramCache]: Analyzing trace with hash 1508427311, now seen corresponding path program 162 times [2021-03-11 14:18:52,856 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:18:52,856 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1715317703] [2021-03-11 14:18:52,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:18:52,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:18:52,869 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:18:52,869 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:18:52,869 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:18:52,869 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:18:52,873 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:18:52,874 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:18:52,881 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:18:52,881 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:18:52,891 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:18:52,892 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:18:52,906 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:18:52,906 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:18:52,924 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:18:52,924 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:18:52,946 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:18:52,947 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:18:52,994 INFO L142 QuantifierPusher]: treesize reduction 54, result has 55.4 percent of original size [2021-03-11 14:18:52,994 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-03-11 14:18:53,051 INFO L142 QuantifierPusher]: treesize reduction 72, result has 49.7 percent of original size [2021-03-11 14:18:53,052 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-03-11 14:18:53,092 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:18:53,093 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:18:53,128 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:18:53,129 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1715317703] [2021-03-11 14:18:53,129 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:18:53,129 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:18:53,129 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [92269155] [2021-03-11 14:18:53,129 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:18:53,129 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:18:53,129 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:18:53,129 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:18:53,129 INFO L87 Difference]: Start difference. First operand 3134 states and 15606 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:53,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:18:53,335 INFO L93 Difference]: Finished difference Result 6054 states and 26902 transitions. [2021-03-11 14:18:53,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:18:53,336 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:18:53,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:18:53,348 INFO L225 Difference]: With dead ends: 6054 [2021-03-11 14:18:53,348 INFO L226 Difference]: Without dead ends: 6018 [2021-03-11 14:18:53,348 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 280.8ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:18:53,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6018 states. [2021-03-11 14:18:53,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6018 to 3120. [2021-03-11 14:18:53,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3120 states, 3119 states have (on average 4.993267072779737) internal successors, (15574), 3119 states have internal predecessors, (15574), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:53,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3120 states to 3120 states and 15574 transitions. [2021-03-11 14:18:53,484 INFO L78 Accepts]: Start accepts. Automaton has 3120 states and 15574 transitions. Word has length 31 [2021-03-11 14:18:53,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:18:53,484 INFO L480 AbstractCegarLoop]: Abstraction has 3120 states and 15574 transitions. [2021-03-11 14:18:53,484 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:53,484 INFO L276 IsEmpty]: Start isEmpty. Operand 3120 states and 15574 transitions. [2021-03-11 14:18:53,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:18:53,489 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:18:53,489 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:18:53,489 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable170 [2021-03-11 14:18:53,489 INFO L428 AbstractCegarLoop]: === Iteration 172 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:18:53,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:18:53,489 INFO L82 PathProgramCache]: Analyzing trace with hash 1387202995, now seen corresponding path program 163 times [2021-03-11 14:18:53,489 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:18:53,489 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2105582258] [2021-03-11 14:18:53,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:18:53,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:18:53,501 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:18:53,502 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:18:53,502 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:18:53,502 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:18:53,506 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:18:53,506 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:18:53,513 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:18:53,513 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:18:53,524 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:18:53,524 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:18:53,538 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:18:53,539 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:18:53,556 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:18:53,557 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:18:53,579 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:18:53,579 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:18:53,607 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:18:53,607 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:18:53,640 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:18:53,641 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:18:53,681 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:18:53,681 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:18:53,717 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:18:53,718 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2105582258] [2021-03-11 14:18:53,718 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:18:53,718 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:18:53,718 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505407835] [2021-03-11 14:18:53,718 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:18:53,718 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:18:53,718 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:18:53,718 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:18:53,718 INFO L87 Difference]: Start difference. First operand 3120 states and 15574 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:53,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:18:53,896 INFO L93 Difference]: Finished difference Result 6063 states and 26943 transitions. [2021-03-11 14:18:53,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:18:53,896 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:18:53,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:18:53,913 INFO L225 Difference]: With dead ends: 6063 [2021-03-11 14:18:53,913 INFO L226 Difference]: Without dead ends: 6043 [2021-03-11 14:18:53,913 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 268.9ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:18:53,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6043 states. [2021-03-11 14:18:54,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6043 to 3136. [2021-03-11 14:18:54,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3136 states, 3135 states have (on average 4.9821371610845295) internal successors, (15619), 3135 states have internal predecessors, (15619), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:54,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3136 states to 3136 states and 15619 transitions. [2021-03-11 14:18:54,049 INFO L78 Accepts]: Start accepts. Automaton has 3136 states and 15619 transitions. Word has length 31 [2021-03-11 14:18:54,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:18:54,049 INFO L480 AbstractCegarLoop]: Abstraction has 3136 states and 15619 transitions. [2021-03-11 14:18:54,049 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:54,049 INFO L276 IsEmpty]: Start isEmpty. Operand 3136 states and 15619 transitions. [2021-03-11 14:18:54,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:18:54,054 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:18:54,054 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:18:54,054 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable171 [2021-03-11 14:18:54,054 INFO L428 AbstractCegarLoop]: === Iteration 173 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:18:54,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:18:54,054 INFO L82 PathProgramCache]: Analyzing trace with hash -302739909, now seen corresponding path program 164 times [2021-03-11 14:18:54,055 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:18:54,055 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [208082971] [2021-03-11 14:18:54,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:18:54,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:18:54,066 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:18:54,066 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:18:54,067 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:18:54,067 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:18:54,071 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:18:54,071 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:18:54,078 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:18:54,078 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:18:54,089 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:18:54,089 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:18:54,103 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:18:54,103 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:18:54,121 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:18:54,122 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:18:54,144 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:18:54,144 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:18:54,172 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:18:54,173 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:18:54,206 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:18:54,206 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:18:54,246 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:18:54,246 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:18:54,283 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:18:54,283 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [208082971] [2021-03-11 14:18:54,283 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:18:54,283 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:18:54,283 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2122739559] [2021-03-11 14:18:54,283 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:18:54,283 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:18:54,284 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:18:54,284 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:18:54,284 INFO L87 Difference]: Start difference. First operand 3136 states and 15619 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:54,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:18:54,490 INFO L93 Difference]: Finished difference Result 6061 states and 26932 transitions. [2021-03-11 14:18:54,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:18:54,490 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:18:54,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:18:54,504 INFO L225 Difference]: With dead ends: 6061 [2021-03-11 14:18:54,504 INFO L226 Difference]: Without dead ends: 6036 [2021-03-11 14:18:54,504 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 264.0ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:18:54,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6036 states. [2021-03-11 14:18:54,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6036 to 3129. [2021-03-11 14:18:54,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3129 states, 3128 states have (on average 4.986892583120205) internal successors, (15599), 3128 states have internal predecessors, (15599), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:54,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3129 states to 3129 states and 15599 transitions. [2021-03-11 14:18:54,645 INFO L78 Accepts]: Start accepts. Automaton has 3129 states and 15599 transitions. Word has length 31 [2021-03-11 14:18:54,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:18:54,645 INFO L480 AbstractCegarLoop]: Abstraction has 3129 states and 15599 transitions. [2021-03-11 14:18:54,645 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:54,646 INFO L276 IsEmpty]: Start isEmpty. Operand 3129 states and 15599 transitions. [2021-03-11 14:18:54,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:18:54,651 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:18:54,651 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:18:54,651 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable172 [2021-03-11 14:18:54,651 INFO L428 AbstractCegarLoop]: === Iteration 174 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:18:54,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:18:54,651 INFO L82 PathProgramCache]: Analyzing trace with hash 750736141, now seen corresponding path program 165 times [2021-03-11 14:18:54,651 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:18:54,651 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [274778887] [2021-03-11 14:18:54,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:18:54,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:18:54,663 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:18:54,663 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:18:54,663 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:18:54,664 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:18:54,668 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:18:54,668 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:18:54,675 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:18:54,675 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:18:54,686 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:18:54,686 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:18:54,701 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:18:54,701 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:18:54,719 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:18:54,719 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:18:54,741 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:18:54,742 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:18:54,770 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:18:54,770 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:18:54,805 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:18:54,805 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:18:54,845 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:18:54,845 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:18:54,882 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:18:54,883 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [274778887] [2021-03-11 14:18:54,883 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:18:54,883 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:18:54,883 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1886337451] [2021-03-11 14:18:54,883 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:18:54,883 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:18:54,883 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:18:54,883 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:18:54,883 INFO L87 Difference]: Start difference. First operand 3129 states and 15599 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:55,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:18:55,064 INFO L93 Difference]: Finished difference Result 6071 states and 26952 transitions. [2021-03-11 14:18:55,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:18:55,065 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:18:55,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:18:55,077 INFO L225 Difference]: With dead ends: 6071 [2021-03-11 14:18:55,078 INFO L226 Difference]: Without dead ends: 6051 [2021-03-11 14:18:55,078 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 272.3ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:18:55,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6051 states. [2021-03-11 14:18:55,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6051 to 3140. [2021-03-11 14:18:55,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3140 states, 3139 states have (on average 4.975788467664861) internal successors, (15619), 3139 states have internal predecessors, (15619), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:55,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3140 states to 3140 states and 15619 transitions. [2021-03-11 14:18:55,214 INFO L78 Accepts]: Start accepts. Automaton has 3140 states and 15619 transitions. Word has length 31 [2021-03-11 14:18:55,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:18:55,214 INFO L480 AbstractCegarLoop]: Abstraction has 3140 states and 15619 transitions. [2021-03-11 14:18:55,214 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:55,214 INFO L276 IsEmpty]: Start isEmpty. Operand 3140 states and 15619 transitions. [2021-03-11 14:18:55,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:18:55,219 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:18:55,219 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:18:55,219 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable173 [2021-03-11 14:18:55,219 INFO L428 AbstractCegarLoop]: === Iteration 175 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:18:55,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:18:55,220 INFO L82 PathProgramCache]: Analyzing trace with hash 2088303355, now seen corresponding path program 166 times [2021-03-11 14:18:55,220 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:18:55,220 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1920701902] [2021-03-11 14:18:55,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:18:55,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:18:55,237 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:18:55,237 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:18:55,237 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:18:55,238 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:18:55,242 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:18:55,242 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:18:55,250 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:18:55,250 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:18:55,260 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:18:55,261 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:18:55,275 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:18:55,275 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:18:55,293 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:18:55,294 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:18:55,316 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:18:55,316 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:18:55,345 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:18:55,345 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:18:55,381 INFO L142 QuantifierPusher]: treesize reduction 72, result has 49.7 percent of original size [2021-03-11 14:18:55,382 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-03-11 14:18:55,423 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:18:55,423 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:18:55,460 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:18:55,461 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1920701902] [2021-03-11 14:18:55,461 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:18:55,461 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:18:55,461 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2043417880] [2021-03-11 14:18:55,461 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:18:55,461 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:18:55,461 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:18:55,461 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:18:55,461 INFO L87 Difference]: Start difference. First operand 3140 states and 15619 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:55,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:18:55,597 INFO L93 Difference]: Finished difference Result 6073 states and 26946 transitions. [2021-03-11 14:18:55,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:18:55,598 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:18:55,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:18:55,611 INFO L225 Difference]: With dead ends: 6073 [2021-03-11 14:18:55,611 INFO L226 Difference]: Without dead ends: 6040 [2021-03-11 14:18:55,611 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 245.0ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:18:55,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6040 states. [2021-03-11 14:18:55,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6040 to 3129. [2021-03-11 14:18:55,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3129 states, 3128 states have (on average 4.984015345268542) internal successors, (15590), 3128 states have internal predecessors, (15590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:55,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3129 states to 3129 states and 15590 transitions. [2021-03-11 14:18:55,746 INFO L78 Accepts]: Start accepts. Automaton has 3129 states and 15590 transitions. Word has length 31 [2021-03-11 14:18:55,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:18:55,746 INFO L480 AbstractCegarLoop]: Abstraction has 3129 states and 15590 transitions. [2021-03-11 14:18:55,747 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:55,747 INFO L276 IsEmpty]: Start isEmpty. Operand 3129 states and 15590 transitions. [2021-03-11 14:18:55,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:18:55,751 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:18:55,751 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:18:55,751 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable174 [2021-03-11 14:18:55,751 INFO L428 AbstractCegarLoop]: === Iteration 176 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:18:55,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:18:55,752 INFO L82 PathProgramCache]: Analyzing trace with hash -1787829235, now seen corresponding path program 167 times [2021-03-11 14:18:55,752 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:18:55,752 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1623064081] [2021-03-11 14:18:55,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:18:55,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:18:55,764 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:18:55,765 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:18:55,765 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:18:55,765 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:18:55,769 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:18:55,769 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:18:55,776 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:18:55,776 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:18:55,787 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:18:55,787 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:18:55,801 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:18:55,802 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:18:55,820 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:18:55,820 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:18:55,842 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:18:55,843 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:18:55,871 INFO L142 QuantifierPusher]: treesize reduction 54, result has 55.4 percent of original size [2021-03-11 14:18:55,871 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-03-11 14:18:55,928 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:18:55,929 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:18:55,969 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:18:55,969 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:18:56,006 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:18:56,006 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1623064081] [2021-03-11 14:18:56,006 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:18:56,006 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:18:56,007 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618356625] [2021-03-11 14:18:56,007 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:18:56,007 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:18:56,007 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:18:56,007 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:18:56,007 INFO L87 Difference]: Start difference. First operand 3129 states and 15590 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:56,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:18:56,173 INFO L93 Difference]: Finished difference Result 6064 states and 26928 transitions. [2021-03-11 14:18:56,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:18:56,173 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:18:56,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:18:56,186 INFO L225 Difference]: With dead ends: 6064 [2021-03-11 14:18:56,186 INFO L226 Difference]: Without dead ends: 6046 [2021-03-11 14:18:56,186 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 288.8ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:18:56,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6046 states. [2021-03-11 14:18:56,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6046 to 3137. [2021-03-11 14:18:56,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3137 states, 3136 states have (on average 4.9760841836734695) internal successors, (15605), 3136 states have internal predecessors, (15605), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:56,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3137 states to 3137 states and 15605 transitions. [2021-03-11 14:18:56,321 INFO L78 Accepts]: Start accepts. Automaton has 3137 states and 15605 transitions. Word has length 31 [2021-03-11 14:18:56,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:18:56,321 INFO L480 AbstractCegarLoop]: Abstraction has 3137 states and 15605 transitions. [2021-03-11 14:18:56,321 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:56,321 INFO L276 IsEmpty]: Start isEmpty. Operand 3137 states and 15605 transitions. [2021-03-11 14:18:56,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:18:56,326 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:18:56,326 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:18:56,326 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable175 [2021-03-11 14:18:56,326 INFO L428 AbstractCegarLoop]: === Iteration 177 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:18:56,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:18:56,326 INFO L82 PathProgramCache]: Analyzing trace with hash 1239680883, now seen corresponding path program 168 times [2021-03-11 14:18:56,326 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:18:56,326 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [809264828] [2021-03-11 14:18:56,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:18:56,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:18:56,343 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:18:56,344 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:18:56,344 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:18:56,344 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:18:56,349 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:18:56,349 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:18:56,357 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:18:56,357 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:18:56,369 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:18:56,369 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:18:56,384 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:18:56,384 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:18:56,402 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:18:56,403 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:18:56,425 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:18:56,425 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:18:56,454 INFO L142 QuantifierPusher]: treesize reduction 54, result has 55.4 percent of original size [2021-03-11 14:18:56,454 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-03-11 14:18:56,511 INFO L142 QuantifierPusher]: treesize reduction 72, result has 49.7 percent of original size [2021-03-11 14:18:56,512 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-03-11 14:18:56,553 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:18:56,553 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:18:56,589 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:18:56,589 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [809264828] [2021-03-11 14:18:56,590 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:18:56,590 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:18:56,590 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2061481703] [2021-03-11 14:18:56,590 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:18:56,590 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:18:56,590 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:18:56,590 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:18:56,590 INFO L87 Difference]: Start difference. First operand 3137 states and 15605 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:56,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:18:56,729 INFO L93 Difference]: Finished difference Result 6068 states and 26928 transitions. [2021-03-11 14:18:56,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:18:56,730 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:18:56,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:18:56,742 INFO L225 Difference]: With dead ends: 6068 [2021-03-11 14:18:56,742 INFO L226 Difference]: Without dead ends: 6022 [2021-03-11 14:18:56,743 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 266.3ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:18:56,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6022 states. [2021-03-11 14:18:56,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6022 to 3113. [2021-03-11 14:18:56,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3113 states, 3112 states have (on average 4.998071979434448) internal successors, (15554), 3112 states have internal predecessors, (15554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:56,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3113 states to 3113 states and 15554 transitions. [2021-03-11 14:18:56,879 INFO L78 Accepts]: Start accepts. Automaton has 3113 states and 15554 transitions. Word has length 31 [2021-03-11 14:18:56,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:18:56,879 INFO L480 AbstractCegarLoop]: Abstraction has 3113 states and 15554 transitions. [2021-03-11 14:18:56,879 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:56,879 INFO L276 IsEmpty]: Start isEmpty. Operand 3113 states and 15554 transitions. [2021-03-11 14:18:56,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:18:56,884 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:18:56,884 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:18:56,884 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable176 [2021-03-11 14:18:56,884 INFO L428 AbstractCegarLoop]: === Iteration 178 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:18:56,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:18:56,884 INFO L82 PathProgramCache]: Analyzing trace with hash -1847219413, now seen corresponding path program 169 times [2021-03-11 14:18:56,884 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:18:56,884 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1945600222] [2021-03-11 14:18:56,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:18:56,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:18:56,896 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:18:56,896 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:18:56,897 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:18:56,897 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:18:56,901 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:18:56,901 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:18:56,908 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:18:56,908 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:18:56,919 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:18:56,919 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:18:56,935 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:18:56,935 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:18:56,953 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:18:56,954 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:18:56,976 INFO L142 QuantifierPusher]: treesize reduction 27, result has 64.5 percent of original size [2021-03-11 14:18:56,977 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 14:18:57,004 INFO L142 QuantifierPusher]: treesize reduction 45, result has 59.1 percent of original size [2021-03-11 14:18:57,004 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:18:57,056 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:18:57,056 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:18:57,096 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:18:57,097 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:18:57,142 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:18:57,142 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1945600222] [2021-03-11 14:18:57,142 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:18:57,142 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:18:57,143 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [738296593] [2021-03-11 14:18:57,143 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:18:57,143 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:18:57,143 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:18:57,143 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:18:57,143 INFO L87 Difference]: Start difference. First operand 3113 states and 15554 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:57,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:18:57,303 INFO L93 Difference]: Finished difference Result 6021 states and 26854 transitions. [2021-03-11 14:18:57,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:18:57,303 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:18:57,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:18:57,316 INFO L225 Difference]: With dead ends: 6021 [2021-03-11 14:18:57,316 INFO L226 Difference]: Without dead ends: 6005 [2021-03-11 14:18:57,316 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 294.7ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:18:57,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6005 states. [2021-03-11 14:18:57,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6005 to 3128. [2021-03-11 14:18:57,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3128 states, 3127 states have (on average 4.990725935401343) internal successors, (15606), 3127 states have internal predecessors, (15606), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:57,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3128 states to 3128 states and 15606 transitions. [2021-03-11 14:18:57,455 INFO L78 Accepts]: Start accepts. Automaton has 3128 states and 15606 transitions. Word has length 31 [2021-03-11 14:18:57,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:18:57,455 INFO L480 AbstractCegarLoop]: Abstraction has 3128 states and 15606 transitions. [2021-03-11 14:18:57,455 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:57,455 INFO L276 IsEmpty]: Start isEmpty. Operand 3128 states and 15606 transitions. [2021-03-11 14:18:57,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:18:57,460 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:18:57,460 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:18:57,460 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable177 [2021-03-11 14:18:57,460 INFO L428 AbstractCegarLoop]: === Iteration 179 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:18:57,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:18:57,460 INFO L82 PathProgramCache]: Analyzing trace with hash 1602776431, now seen corresponding path program 170 times [2021-03-11 14:18:57,460 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:18:57,460 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [486765229] [2021-03-11 14:18:57,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:18:57,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:18:57,477 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:18:57,477 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:18:57,477 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:18:57,478 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:18:57,482 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:18:57,482 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:18:57,489 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:18:57,489 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:18:57,500 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:18:57,500 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:18:57,515 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:18:57,515 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:18:57,533 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:18:57,534 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:18:57,556 INFO L142 QuantifierPusher]: treesize reduction 27, result has 64.5 percent of original size [2021-03-11 14:18:57,556 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 14:18:57,584 INFO L142 QuantifierPusher]: treesize reduction 45, result has 59.1 percent of original size [2021-03-11 14:18:57,584 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:18:57,637 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:18:57,637 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:18:57,678 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:18:57,678 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:18:57,729 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:18:57,730 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [486765229] [2021-03-11 14:18:57,730 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:18:57,730 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:18:57,730 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [651737782] [2021-03-11 14:18:57,730 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:18:57,730 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:18:57,731 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:18:57,731 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:18:57,731 INFO L87 Difference]: Start difference. First operand 3128 states and 15606 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:57,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:18:57,916 INFO L93 Difference]: Finished difference Result 6025 states and 26857 transitions. [2021-03-11 14:18:57,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:18:57,917 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:18:57,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:18:57,930 INFO L225 Difference]: With dead ends: 6025 [2021-03-11 14:18:57,930 INFO L226 Difference]: Without dead ends: 6000 [2021-03-11 14:18:57,930 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 307.5ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:18:58,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6000 states. [2021-03-11 14:18:58,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6000 to 3123. [2021-03-11 14:18:58,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3123 states, 3122 states have (on average 4.994234465086483) internal successors, (15592), 3122 states have internal predecessors, (15592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:58,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3123 states to 3123 states and 15592 transitions. [2021-03-11 14:18:58,073 INFO L78 Accepts]: Start accepts. Automaton has 3123 states and 15592 transitions. Word has length 31 [2021-03-11 14:18:58,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:18:58,073 INFO L480 AbstractCegarLoop]: Abstraction has 3123 states and 15592 transitions. [2021-03-11 14:18:58,073 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:58,073 INFO L276 IsEmpty]: Start isEmpty. Operand 3123 states and 15592 transitions. [2021-03-11 14:18:58,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:18:58,078 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:18:58,078 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:18:58,078 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable178 [2021-03-11 14:18:58,078 INFO L428 AbstractCegarLoop]: === Iteration 180 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:18:58,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:18:58,078 INFO L82 PathProgramCache]: Analyzing trace with hash 1599125411, now seen corresponding path program 171 times [2021-03-11 14:18:58,078 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:18:58,078 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [594796973] [2021-03-11 14:18:58,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:18:58,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:18:58,090 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:18:58,090 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:18:58,090 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:18:58,091 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:18:58,095 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:18:58,095 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:18:58,102 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:18:58,102 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:18:58,113 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:18:58,113 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:18:58,128 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:18:58,128 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:18:58,147 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:18:58,147 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:18:58,171 INFO L142 QuantifierPusher]: treesize reduction 27, result has 64.5 percent of original size [2021-03-11 14:18:58,171 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 14:18:58,198 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:18:58,199 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:18:58,232 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:18:58,232 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:18:58,273 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:18:58,273 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:18:58,310 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:18:58,310 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [594796973] [2021-03-11 14:18:58,310 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:18:58,310 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:18:58,310 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [748294755] [2021-03-11 14:18:58,310 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:18:58,310 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:18:58,311 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:18:58,311 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:18:58,311 INFO L87 Difference]: Start difference. First operand 3123 states and 15592 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:58,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:18:58,472 INFO L93 Difference]: Finished difference Result 6019 states and 26845 transitions. [2021-03-11 14:18:58,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:18:58,473 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:18:58,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:18:58,486 INFO L225 Difference]: With dead ends: 6019 [2021-03-11 14:18:58,486 INFO L226 Difference]: Without dead ends: 6003 [2021-03-11 14:18:58,486 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 268.1ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:18:58,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6003 states. [2021-03-11 14:18:58,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6003 to 3128. [2021-03-11 14:18:58,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3128 states, 3127 states have (on average 4.989126958746402) internal successors, (15601), 3127 states have internal predecessors, (15601), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:58,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3128 states to 3128 states and 15601 transitions. [2021-03-11 14:18:58,625 INFO L78 Accepts]: Start accepts. Automaton has 3128 states and 15601 transitions. Word has length 31 [2021-03-11 14:18:58,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:18:58,625 INFO L480 AbstractCegarLoop]: Abstraction has 3128 states and 15601 transitions. [2021-03-11 14:18:58,625 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:58,625 INFO L276 IsEmpty]: Start isEmpty. Operand 3128 states and 15601 transitions. [2021-03-11 14:18:58,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:18:58,630 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:18:58,630 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:18:58,630 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable179 [2021-03-11 14:18:58,630 INFO L428 AbstractCegarLoop]: === Iteration 181 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:18:58,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:18:58,630 INFO L82 PathProgramCache]: Analyzing trace with hash -935788945, now seen corresponding path program 172 times [2021-03-11 14:18:58,630 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:18:58,630 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1400497345] [2021-03-11 14:18:58,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:18:58,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:18:58,643 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:18:58,644 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:18:58,644 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:18:58,644 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:18:58,648 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:18:58,648 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:18:58,656 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:18:58,656 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:18:58,666 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:18:58,667 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:18:58,681 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:18:58,682 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:18:58,700 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:18:58,700 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:18:58,723 INFO L142 QuantifierPusher]: treesize reduction 27, result has 64.5 percent of original size [2021-03-11 14:18:58,723 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 14:18:58,750 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:18:58,750 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:18:58,784 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:18:58,784 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:18:58,824 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:18:58,825 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:18:58,861 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:18:58,862 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1400497345] [2021-03-11 14:18:58,862 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:18:58,862 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:18:58,862 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1017789364] [2021-03-11 14:18:58,862 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:18:58,862 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:18:58,862 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:18:58,862 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:18:58,862 INFO L87 Difference]: Start difference. First operand 3128 states and 15601 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:59,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:18:59,030 INFO L93 Difference]: Finished difference Result 6021 states and 26844 transitions. [2021-03-11 14:18:59,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:18:59,031 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:18:59,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:18:59,043 INFO L225 Difference]: With dead ends: 6021 [2021-03-11 14:18:59,044 INFO L226 Difference]: Without dead ends: 5998 [2021-03-11 14:18:59,044 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 266.1ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:18:59,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5998 states. [2021-03-11 14:18:59,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5998 to 3123. [2021-03-11 14:18:59,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3123 states, 3122 states have (on average 4.992632927610506) internal successors, (15587), 3122 states have internal predecessors, (15587), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:59,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3123 states to 3123 states and 15587 transitions. [2021-03-11 14:18:59,181 INFO L78 Accepts]: Start accepts. Automaton has 3123 states and 15587 transitions. Word has length 31 [2021-03-11 14:18:59,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:18:59,181 INFO L480 AbstractCegarLoop]: Abstraction has 3123 states and 15587 transitions. [2021-03-11 14:18:59,181 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:59,181 INFO L276 IsEmpty]: Start isEmpty. Operand 3123 states and 15587 transitions. [2021-03-11 14:18:59,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:18:59,186 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:18:59,186 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:18:59,186 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable180 [2021-03-11 14:18:59,186 INFO L428 AbstractCegarLoop]: === Iteration 182 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:18:59,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:18:59,186 INFO L82 PathProgramCache]: Analyzing trace with hash 329842723, now seen corresponding path program 173 times [2021-03-11 14:18:59,186 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:18:59,186 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [79613990] [2021-03-11 14:18:59,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:18:59,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:18:59,203 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:18:59,203 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:18:59,204 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:18:59,204 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:18:59,208 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:18:59,209 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:18:59,216 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:18:59,217 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:18:59,229 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:18:59,229 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:18:59,246 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:18:59,246 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:18:59,264 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:18:59,265 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:18:59,287 INFO L142 QuantifierPusher]: treesize reduction 27, result has 64.5 percent of original size [2021-03-11 14:18:59,287 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 14:18:59,314 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:18:59,315 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:18:59,348 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:18:59,349 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:18:59,390 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:18:59,390 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:18:59,427 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:18:59,427 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [79613990] [2021-03-11 14:18:59,428 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:18:59,428 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:18:59,428 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [918645038] [2021-03-11 14:18:59,431 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:18:59,431 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:18:59,431 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:18:59,431 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:18:59,431 INFO L87 Difference]: Start difference. First operand 3123 states and 15587 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:59,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:18:59,656 INFO L93 Difference]: Finished difference Result 6029 states and 26862 transitions. [2021-03-11 14:18:59,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:18:59,657 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:18:59,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:18:59,670 INFO L225 Difference]: With dead ends: 6029 [2021-03-11 14:18:59,670 INFO L226 Difference]: Without dead ends: 6009 [2021-03-11 14:18:59,670 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 277.8ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:18:59,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6009 states. [2021-03-11 14:18:59,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6009 to 3130. [2021-03-11 14:18:59,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3130 states, 3129 states have (on average 4.9856184084372) internal successors, (15600), 3129 states have internal predecessors, (15600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:59,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3130 states to 3130 states and 15600 transitions. [2021-03-11 14:18:59,809 INFO L78 Accepts]: Start accepts. Automaton has 3130 states and 15600 transitions. Word has length 31 [2021-03-11 14:18:59,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:18:59,809 INFO L480 AbstractCegarLoop]: Abstraction has 3130 states and 15600 transitions. [2021-03-11 14:18:59,809 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:18:59,809 INFO L276 IsEmpty]: Start isEmpty. Operand 3130 states and 15600 transitions. [2021-03-11 14:18:59,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:18:59,814 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:18:59,814 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:18:59,814 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable181 [2021-03-11 14:18:59,814 INFO L428 AbstractCegarLoop]: === Iteration 183 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:18:59,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:18:59,814 INFO L82 PathProgramCache]: Analyzing trace with hash -1360100181, now seen corresponding path program 174 times [2021-03-11 14:18:59,814 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:18:59,814 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [762101150] [2021-03-11 14:18:59,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:18:59,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:18:59,826 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:18:59,826 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:18:59,826 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:18:59,827 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:18:59,831 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:18:59,831 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:18:59,838 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:18:59,838 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:18:59,849 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:18:59,850 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:18:59,865 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:18:59,865 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:18:59,884 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:18:59,884 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:18:59,907 INFO L142 QuantifierPusher]: treesize reduction 27, result has 64.5 percent of original size [2021-03-11 14:18:59,907 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 14:18:59,935 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:18:59,935 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:18:59,971 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:18:59,971 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:19:00,012 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:19:00,013 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:19:00,050 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:19:00,051 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [762101150] [2021-03-11 14:19:00,051 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:19:00,051 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:19:00,051 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1869031725] [2021-03-11 14:19:00,051 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:19:00,051 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:19:00,051 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:19:00,051 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:19:00,051 INFO L87 Difference]: Start difference. First operand 3130 states and 15600 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:00,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:19:00,257 INFO L93 Difference]: Finished difference Result 6027 states and 26851 transitions. [2021-03-11 14:19:00,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:19:00,257 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:19:00,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:19:00,271 INFO L225 Difference]: With dead ends: 6027 [2021-03-11 14:19:00,271 INFO L226 Difference]: Without dead ends: 5997 [2021-03-11 14:19:00,271 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 275.0ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:19:00,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5997 states. [2021-03-11 14:19:00,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5997 to 3118. [2021-03-11 14:19:00,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3118 states, 3117 states have (on average 4.996150144369586) internal successors, (15573), 3117 states have internal predecessors, (15573), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:00,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3118 states to 3118 states and 15573 transitions. [2021-03-11 14:19:00,411 INFO L78 Accepts]: Start accepts. Automaton has 3118 states and 15573 transitions. Word has length 31 [2021-03-11 14:19:00,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:19:00,411 INFO L480 AbstractCegarLoop]: Abstraction has 3118 states and 15573 transitions. [2021-03-11 14:19:00,411 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:00,411 INFO L276 IsEmpty]: Start isEmpty. Operand 3118 states and 15573 transitions. [2021-03-11 14:19:00,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:19:00,416 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:19:00,416 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:19:00,416 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable182 [2021-03-11 14:19:00,416 INFO L428 AbstractCegarLoop]: === Iteration 184 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:19:00,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:19:00,417 INFO L82 PathProgramCache]: Analyzing trace with hash 1910255027, now seen corresponding path program 175 times [2021-03-11 14:19:00,417 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:19:00,417 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1131888443] [2021-03-11 14:19:00,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:19:00,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:19:00,431 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:00,431 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:19:00,432 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:00,432 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:19:00,436 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:19:00,436 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:19:00,443 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:19:00,444 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:19:00,455 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:19:00,455 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:19:00,471 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:19:00,472 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:19:00,492 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:19:00,492 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:19:00,515 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:19:00,516 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:19:00,564 INFO L142 QuantifierPusher]: treesize reduction 45, result has 59.1 percent of original size [2021-03-11 14:19:00,564 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:19:00,619 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:19:00,620 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:19:00,667 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:19:00,667 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:19:00,706 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:19:00,706 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1131888443] [2021-03-11 14:19:00,706 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:19:00,706 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:19:00,706 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [837137903] [2021-03-11 14:19:00,706 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:19:00,707 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:19:00,707 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:19:00,707 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:19:00,707 INFO L87 Difference]: Start difference. First operand 3118 states and 15573 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:00,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:19:00,893 INFO L93 Difference]: Finished difference Result 6023 states and 26854 transitions. [2021-03-11 14:19:00,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:19:00,893 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:19:00,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:19:00,908 INFO L225 Difference]: With dead ends: 6023 [2021-03-11 14:19:00,908 INFO L226 Difference]: Without dead ends: 6007 [2021-03-11 14:19:00,908 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 321.7ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:19:00,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6007 states. [2021-03-11 14:19:01,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6007 to 3128. [2021-03-11 14:19:01,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3128 states, 3127 states have (on average 4.989126958746402) internal successors, (15601), 3127 states have internal predecessors, (15601), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:01,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3128 states to 3128 states and 15601 transitions. [2021-03-11 14:19:01,054 INFO L78 Accepts]: Start accepts. Automaton has 3128 states and 15601 transitions. Word has length 31 [2021-03-11 14:19:01,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:19:01,055 INFO L480 AbstractCegarLoop]: Abstraction has 3128 states and 15601 transitions. [2021-03-11 14:19:01,055 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:01,055 INFO L276 IsEmpty]: Start isEmpty. Operand 3128 states and 15601 transitions. [2021-03-11 14:19:01,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:19:01,060 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:19:01,060 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:19:01,060 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable183 [2021-03-11 14:19:01,060 INFO L428 AbstractCegarLoop]: === Iteration 185 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:19:01,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:19:01,060 INFO L82 PathProgramCache]: Analyzing trace with hash 1065283575, now seen corresponding path program 176 times [2021-03-11 14:19:01,060 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:19:01,060 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1648404394] [2021-03-11 14:19:01,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:19:01,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:19:01,073 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:01,073 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:19:01,073 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:01,074 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:19:01,078 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:19:01,078 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:19:01,085 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:19:01,086 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:19:01,097 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:19:01,098 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:19:01,114 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:19:01,114 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:19:01,134 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:19:01,135 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:19:01,159 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:19:01,160 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:19:01,210 INFO L142 QuantifierPusher]: treesize reduction 45, result has 59.1 percent of original size [2021-03-11 14:19:01,211 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:19:01,266 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:19:01,266 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:19:01,309 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:19:01,310 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:19:01,348 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:19:01,349 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1648404394] [2021-03-11 14:19:01,349 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:19:01,349 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:19:01,349 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1457872965] [2021-03-11 14:19:01,349 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:19:01,349 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:19:01,349 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:19:01,349 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:19:01,349 INFO L87 Difference]: Start difference. First operand 3128 states and 15601 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:01,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:19:01,540 INFO L93 Difference]: Finished difference Result 6027 states and 26857 transitions. [2021-03-11 14:19:01,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:19:01,541 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:19:01,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:19:01,554 INFO L225 Difference]: With dead ends: 6027 [2021-03-11 14:19:01,554 INFO L226 Difference]: Without dead ends: 6002 [2021-03-11 14:19:01,554 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 328.8ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:19:01,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6002 states. [2021-03-11 14:19:01,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6002 to 3123. [2021-03-11 14:19:01,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3123 states, 3122 states have (on average 4.992632927610506) internal successors, (15587), 3122 states have internal predecessors, (15587), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:01,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3123 states to 3123 states and 15587 transitions. [2021-03-11 14:19:01,691 INFO L78 Accepts]: Start accepts. Automaton has 3123 states and 15587 transitions. Word has length 31 [2021-03-11 14:19:01,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:19:01,692 INFO L480 AbstractCegarLoop]: Abstraction has 3123 states and 15587 transitions. [2021-03-11 14:19:01,692 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:01,692 INFO L276 IsEmpty]: Start isEmpty. Operand 3123 states and 15587 transitions. [2021-03-11 14:19:01,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:19:01,696 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:19:01,697 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:19:01,697 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable184 [2021-03-11 14:19:01,697 INFO L428 AbstractCegarLoop]: === Iteration 186 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:19:01,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:19:01,697 INFO L82 PathProgramCache]: Analyzing trace with hash 213010083, now seen corresponding path program 177 times [2021-03-11 14:19:01,697 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:19:01,697 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [825933088] [2021-03-11 14:19:01,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:19:01,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:19:01,709 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:01,709 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:19:01,709 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:01,710 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:19:01,714 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:19:01,714 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:19:01,721 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:19:01,721 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:19:01,732 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:19:01,733 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:19:01,748 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:19:01,748 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:19:01,767 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:19:01,767 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:19:01,791 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:19:01,792 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:19:01,839 INFO L142 QuantifierPusher]: treesize reduction 45, result has 59.1 percent of original size [2021-03-11 14:19:01,840 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:19:01,896 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:19:01,897 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:19:01,937 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:19:01,938 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:19:01,975 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:19:01,975 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [825933088] [2021-03-11 14:19:01,975 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:19:01,975 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:19:01,975 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1027154277] [2021-03-11 14:19:01,975 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:19:01,975 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:19:01,976 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:19:01,976 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:19:01,976 INFO L87 Difference]: Start difference. First operand 3123 states and 15587 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:02,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:19:02,147 INFO L93 Difference]: Finished difference Result 6022 states and 26847 transitions. [2021-03-11 14:19:02,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:19:02,147 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:19:02,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:19:02,161 INFO L225 Difference]: With dead ends: 6022 [2021-03-11 14:19:02,161 INFO L226 Difference]: Without dead ends: 6006 [2021-03-11 14:19:02,161 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 316.4ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:19:02,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6006 states. [2021-03-11 14:19:02,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6006 to 3128. [2021-03-11 14:19:02,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3128 states, 3127 states have (on average 4.9875279820914615) internal successors, (15596), 3127 states have internal predecessors, (15596), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:02,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3128 states to 3128 states and 15596 transitions. [2021-03-11 14:19:02,304 INFO L78 Accepts]: Start accepts. Automaton has 3128 states and 15596 transitions. Word has length 31 [2021-03-11 14:19:02,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:19:02,304 INFO L480 AbstractCegarLoop]: Abstraction has 3128 states and 15596 transitions. [2021-03-11 14:19:02,304 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:02,304 INFO L276 IsEmpty]: Start isEmpty. Operand 3128 states and 15596 transitions. [2021-03-11 14:19:02,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:19:02,309 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:19:02,309 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:19:02,309 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable185 [2021-03-11 14:19:02,309 INFO L428 AbstractCegarLoop]: === Iteration 187 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:19:02,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:19:02,309 INFO L82 PathProgramCache]: Analyzing trace with hash 283120119, now seen corresponding path program 178 times [2021-03-11 14:19:02,309 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:19:02,309 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [610659028] [2021-03-11 14:19:02,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:19:02,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:19:02,322 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:02,322 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:19:02,322 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:02,322 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:19:02,327 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:19:02,327 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:19:02,334 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:19:02,335 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:19:02,346 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:19:02,346 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:19:02,361 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:19:02,362 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:19:02,381 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:19:02,381 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:19:02,405 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:19:02,405 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:19:02,462 INFO L142 QuantifierPusher]: treesize reduction 45, result has 59.1 percent of original size [2021-03-11 14:19:02,463 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:19:02,523 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:19:02,524 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:19:02,565 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:19:02,566 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:19:02,603 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:19:02,604 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [610659028] [2021-03-11 14:19:02,604 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:19:02,604 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:19:02,604 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744510132] [2021-03-11 14:19:02,604 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:19:02,604 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:19:02,604 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:19:02,604 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:19:02,604 INFO L87 Difference]: Start difference. First operand 3128 states and 15596 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:02,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:19:02,804 INFO L93 Difference]: Finished difference Result 6025 states and 26848 transitions. [2021-03-11 14:19:02,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:19:02,804 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:19:02,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:19:02,818 INFO L225 Difference]: With dead ends: 6025 [2021-03-11 14:19:02,818 INFO L226 Difference]: Without dead ends: 6001 [2021-03-11 14:19:02,818 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 325.5ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:19:02,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6001 states. [2021-03-11 14:19:02,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6001 to 3123. [2021-03-11 14:19:02,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3123 states, 3122 states have (on average 4.99103139013453) internal successors, (15582), 3122 states have internal predecessors, (15582), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:02,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3123 states to 3123 states and 15582 transitions. [2021-03-11 14:19:02,956 INFO L78 Accepts]: Start accepts. Automaton has 3123 states and 15582 transitions. Word has length 31 [2021-03-11 14:19:02,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:19:02,956 INFO L480 AbstractCegarLoop]: Abstraction has 3123 states and 15582 transitions. [2021-03-11 14:19:02,956 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:02,956 INFO L276 IsEmpty]: Start isEmpty. Operand 3123 states and 15582 transitions. [2021-03-11 14:19:02,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:19:02,961 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:19:02,961 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:19:02,961 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable186 [2021-03-11 14:19:02,961 INFO L428 AbstractCegarLoop]: === Iteration 188 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:19:02,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:19:02,962 INFO L82 PathProgramCache]: Analyzing trace with hash -1056272605, now seen corresponding path program 179 times [2021-03-11 14:19:02,962 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:19:02,962 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2133150704] [2021-03-11 14:19:02,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:19:02,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:19:02,974 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:02,974 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:19:02,975 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:02,975 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:19:02,980 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:19:02,980 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:19:02,988 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:19:02,988 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:19:03,000 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:19:03,000 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:19:03,018 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:19:03,018 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:19:03,039 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:19:03,039 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:19:03,062 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:19:03,063 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:19:03,112 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:19:03,113 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:19:03,148 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:19:03,149 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:19:03,190 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:19:03,190 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:19:03,228 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:19:03,228 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2133150704] [2021-03-11 14:19:03,228 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:19:03,228 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:19:03,228 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [880561851] [2021-03-11 14:19:03,228 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:19:03,228 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:19:03,228 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:19:03,228 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:19:03,228 INFO L87 Difference]: Start difference. First operand 3123 states and 15582 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:03,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:19:03,417 INFO L93 Difference]: Finished difference Result 6033 states and 26867 transitions. [2021-03-11 14:19:03,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:19:03,417 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:19:03,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:19:03,430 INFO L225 Difference]: With dead ends: 6033 [2021-03-11 14:19:03,430 INFO L226 Difference]: Without dead ends: 6013 [2021-03-11 14:19:03,430 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 307.1ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:19:03,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6013 states. [2021-03-11 14:19:03,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6013 to 3131. [2021-03-11 14:19:03,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3131 states, 3130 states have (on average 4.9830670926517575) internal successors, (15597), 3130 states have internal predecessors, (15597), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:03,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3131 states to 3131 states and 15597 transitions. [2021-03-11 14:19:03,569 INFO L78 Accepts]: Start accepts. Automaton has 3131 states and 15597 transitions. Word has length 31 [2021-03-11 14:19:03,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:19:03,569 INFO L480 AbstractCegarLoop]: Abstraction has 3131 states and 15597 transitions. [2021-03-11 14:19:03,569 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:03,569 INFO L276 IsEmpty]: Start isEmpty. Operand 3131 states and 15597 transitions. [2021-03-11 14:19:03,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:19:03,574 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:19:03,574 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:19:03,574 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable187 [2021-03-11 14:19:03,574 INFO L428 AbstractCegarLoop]: === Iteration 189 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:19:03,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:19:03,574 INFO L82 PathProgramCache]: Analyzing trace with hash -141191117, now seen corresponding path program 180 times [2021-03-11 14:19:03,574 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:19:03,574 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [123142743] [2021-03-11 14:19:03,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:19:03,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:19:03,588 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:03,588 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:19:03,588 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:03,589 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:19:03,593 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:19:03,593 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:19:03,600 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:19:03,601 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:19:03,611 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:19:03,612 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:19:03,627 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:19:03,627 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:19:03,646 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:19:03,647 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:19:03,669 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:19:03,670 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:19:03,717 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:19:03,718 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:19:03,753 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:19:03,754 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:19:03,795 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:19:03,795 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:19:03,833 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:19:03,833 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [123142743] [2021-03-11 14:19:03,833 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:19:03,833 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:19:03,833 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2029881277] [2021-03-11 14:19:03,833 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:19:03,833 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:19:03,833 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:19:03,833 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:19:03,833 INFO L87 Difference]: Start difference. First operand 3131 states and 15597 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:04,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:19:04,032 INFO L93 Difference]: Finished difference Result 6032 states and 26857 transitions. [2021-03-11 14:19:04,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:19:04,032 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:19:04,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:19:04,045 INFO L225 Difference]: With dead ends: 6032 [2021-03-11 14:19:04,045 INFO L226 Difference]: Without dead ends: 6000 [2021-03-11 14:19:04,045 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 297.9ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:19:04,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6000 states. [2021-03-11 14:19:04,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6000 to 3118. [2021-03-11 14:19:04,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3118 states, 3117 states have (on average 4.994546037856914) internal successors, (15568), 3117 states have internal predecessors, (15568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:04,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3118 states to 3118 states and 15568 transitions. [2021-03-11 14:19:04,182 INFO L78 Accepts]: Start accepts. Automaton has 3118 states and 15568 transitions. Word has length 31 [2021-03-11 14:19:04,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:19:04,182 INFO L480 AbstractCegarLoop]: Abstraction has 3118 states and 15568 transitions. [2021-03-11 14:19:04,182 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:04,182 INFO L276 IsEmpty]: Start isEmpty. Operand 3118 states and 15568 transitions. [2021-03-11 14:19:04,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:19:04,187 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:19:04,187 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:19:04,187 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable188 [2021-03-11 14:19:04,187 INFO L428 AbstractCegarLoop]: === Iteration 190 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:19:04,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:19:04,188 INFO L82 PathProgramCache]: Analyzing trace with hash 524139699, now seen corresponding path program 181 times [2021-03-11 14:19:04,188 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:19:04,188 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1881167181] [2021-03-11 14:19:04,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:19:04,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:19:04,200 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:04,200 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:19:04,200 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:04,201 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:19:04,205 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:19:04,205 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:19:04,213 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:19:04,213 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:19:04,224 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:19:04,224 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:19:04,240 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:19:04,240 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:19:04,259 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:19:04,259 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:19:04,282 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:19:04,282 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:19:04,310 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:19:04,311 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:19:04,344 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:19:04,345 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:19:04,385 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:19:04,385 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:19:04,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:19:04,423 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1881167181] [2021-03-11 14:19:04,423 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:19:04,423 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:19:04,423 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [785246054] [2021-03-11 14:19:04,423 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:19:04,423 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:19:04,423 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:19:04,423 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:19:04,423 INFO L87 Difference]: Start difference. First operand 3118 states and 15568 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:04,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:19:04,610 INFO L93 Difference]: Finished difference Result 6018 states and 26838 transitions. [2021-03-11 14:19:04,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:19:04,611 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:19:04,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:19:04,624 INFO L225 Difference]: With dead ends: 6018 [2021-03-11 14:19:04,624 INFO L226 Difference]: Without dead ends: 6002 [2021-03-11 14:19:04,624 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 272.2ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:19:04,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6002 states. [2021-03-11 14:19:04,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6002 to 3128. [2021-03-11 14:19:04,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3128 states, 3127 states have (on average 4.9875279820914615) internal successors, (15596), 3127 states have internal predecessors, (15596), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:04,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3128 states to 3128 states and 15596 transitions. [2021-03-11 14:19:04,798 INFO L78 Accepts]: Start accepts. Automaton has 3128 states and 15596 transitions. Word has length 31 [2021-03-11 14:19:04,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:19:04,798 INFO L480 AbstractCegarLoop]: Abstraction has 3128 states and 15596 transitions. [2021-03-11 14:19:04,798 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:04,798 INFO L276 IsEmpty]: Start isEmpty. Operand 3128 states and 15596 transitions. [2021-03-11 14:19:04,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:19:04,803 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:19:04,803 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:19:04,803 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable189 [2021-03-11 14:19:04,803 INFO L428 AbstractCegarLoop]: === Iteration 191 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:19:04,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:19:04,804 INFO L82 PathProgramCache]: Analyzing trace with hash -2010774657, now seen corresponding path program 182 times [2021-03-11 14:19:04,804 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:19:04,804 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1505963231] [2021-03-11 14:19:04,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:19:04,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:19:04,821 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:04,822 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:19:04,822 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:04,822 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:19:04,827 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:19:04,827 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:19:04,835 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:19:04,835 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:19:04,847 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:19:04,847 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:19:04,866 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:19:04,867 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:19:04,890 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:19:04,890 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:19:04,919 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:19:04,919 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:19:04,954 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:19:04,954 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:19:04,992 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:19:04,993 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:19:05,032 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:19:05,033 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:19:05,068 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:19:05,069 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1505963231] [2021-03-11 14:19:05,069 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:19:05,069 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:19:05,069 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816979829] [2021-03-11 14:19:05,069 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:19:05,069 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:19:05,069 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:19:05,069 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:19:05,069 INFO L87 Difference]: Start difference. First operand 3128 states and 15596 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:05,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:19:05,253 INFO L93 Difference]: Finished difference Result 6020 states and 26837 transitions. [2021-03-11 14:19:05,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:19:05,253 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:19:05,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:19:05,266 INFO L225 Difference]: With dead ends: 6020 [2021-03-11 14:19:05,266 INFO L226 Difference]: Without dead ends: 5997 [2021-03-11 14:19:05,266 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 291.4ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:19:05,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5997 states. [2021-03-11 14:19:05,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5997 to 3123. [2021-03-11 14:19:05,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3123 states, 3122 states have (on average 4.99103139013453) internal successors, (15582), 3122 states have internal predecessors, (15582), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:05,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3123 states to 3123 states and 15582 transitions. [2021-03-11 14:19:05,407 INFO L78 Accepts]: Start accepts. Automaton has 3123 states and 15582 transitions. Word has length 31 [2021-03-11 14:19:05,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:19:05,407 INFO L480 AbstractCegarLoop]: Abstraction has 3123 states and 15582 transitions. [2021-03-11 14:19:05,407 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:05,408 INFO L276 IsEmpty]: Start isEmpty. Operand 3123 states and 15582 transitions. [2021-03-11 14:19:05,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:19:05,412 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:19:05,412 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:19:05,413 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable190 [2021-03-11 14:19:05,413 INFO L428 AbstractCegarLoop]: === Iteration 192 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:19:05,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:19:05,413 INFO L82 PathProgramCache]: Analyzing trace with hash -324482773, now seen corresponding path program 183 times [2021-03-11 14:19:05,413 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:19:05,413 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1889032297] [2021-03-11 14:19:05,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:19:05,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:19:05,431 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:05,431 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:19:05,431 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:05,432 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:19:05,436 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:19:05,436 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:19:05,444 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:19:05,445 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:19:05,457 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:19:05,457 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:19:05,477 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:19:05,477 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:19:05,500 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:19:05,501 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:19:05,524 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:19:05,524 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:19:05,551 INFO L142 QuantifierPusher]: treesize reduction 45, result has 59.1 percent of original size [2021-03-11 14:19:05,552 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:19:05,607 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:19:05,608 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:19:05,647 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:19:05,648 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:19:05,684 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:19:05,684 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1889032297] [2021-03-11 14:19:05,684 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:19:05,684 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:19:05,684 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1533141503] [2021-03-11 14:19:05,685 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:19:05,685 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:19:05,685 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:19:05,685 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:19:05,685 INFO L87 Difference]: Start difference. First operand 3123 states and 15582 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:05,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:19:05,923 INFO L93 Difference]: Finished difference Result 6019 states and 26835 transitions. [2021-03-11 14:19:05,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:19:05,924 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:19:05,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:19:05,937 INFO L225 Difference]: With dead ends: 6019 [2021-03-11 14:19:05,937 INFO L226 Difference]: Without dead ends: 6003 [2021-03-11 14:19:05,937 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 298.5ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:19:06,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6003 states. [2021-03-11 14:19:06,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6003 to 3128. [2021-03-11 14:19:06,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3128 states, 3127 states have (on average 4.985929005436521) internal successors, (15591), 3127 states have internal predecessors, (15591), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:06,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3128 states to 3128 states and 15591 transitions. [2021-03-11 14:19:06,074 INFO L78 Accepts]: Start accepts. Automaton has 3128 states and 15591 transitions. Word has length 31 [2021-03-11 14:19:06,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:19:06,074 INFO L480 AbstractCegarLoop]: Abstraction has 3128 states and 15591 transitions. [2021-03-11 14:19:06,074 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:06,074 INFO L276 IsEmpty]: Start isEmpty. Operand 3128 states and 15591 transitions. [2021-03-11 14:19:06,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:19:06,080 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:19:06,080 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:19:06,080 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable191 [2021-03-11 14:19:06,080 INFO L428 AbstractCegarLoop]: === Iteration 193 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:19:06,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:19:06,080 INFO L82 PathProgramCache]: Analyzing trace with hash -254372737, now seen corresponding path program 184 times [2021-03-11 14:19:06,080 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:19:06,080 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1291009900] [2021-03-11 14:19:06,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:19:06,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:19:06,092 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:06,092 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:19:06,093 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:06,093 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:19:06,097 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:19:06,097 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:19:06,104 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:19:06,104 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:19:06,115 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:19:06,115 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:19:06,130 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:19:06,130 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:19:06,148 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:19:06,148 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:19:06,171 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:19:06,171 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:19:06,198 INFO L142 QuantifierPusher]: treesize reduction 45, result has 59.1 percent of original size [2021-03-11 14:19:06,199 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:19:06,254 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:19:06,254 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:19:06,295 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:19:06,295 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:19:06,331 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:19:06,331 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1291009900] [2021-03-11 14:19:06,331 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:19:06,332 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:19:06,332 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035205807] [2021-03-11 14:19:06,332 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:19:06,332 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:19:06,332 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:19:06,332 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:19:06,332 INFO L87 Difference]: Start difference. First operand 3128 states and 15591 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:06,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:19:06,575 INFO L93 Difference]: Finished difference Result 6022 states and 26836 transitions. [2021-03-11 14:19:06,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:19:06,575 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:19:06,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:19:06,589 INFO L225 Difference]: With dead ends: 6022 [2021-03-11 14:19:06,589 INFO L226 Difference]: Without dead ends: 5998 [2021-03-11 14:19:06,589 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 291.4ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:19:06,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5998 states. [2021-03-11 14:19:06,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5998 to 3123. [2021-03-11 14:19:06,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3123 states, 3122 states have (on average 4.989429852658552) internal successors, (15577), 3122 states have internal predecessors, (15577), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:06,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3123 states to 3123 states and 15577 transitions. [2021-03-11 14:19:06,728 INFO L78 Accepts]: Start accepts. Automaton has 3123 states and 15577 transitions. Word has length 31 [2021-03-11 14:19:06,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:19:06,728 INFO L480 AbstractCegarLoop]: Abstraction has 3123 states and 15577 transitions. [2021-03-11 14:19:06,728 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:06,728 INFO L276 IsEmpty]: Start isEmpty. Operand 3123 states and 15577 transitions. [2021-03-11 14:19:06,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:19:06,733 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:19:06,733 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:19:06,733 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable192 [2021-03-11 14:19:06,733 INFO L428 AbstractCegarLoop]: === Iteration 194 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:19:06,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:19:06,733 INFO L82 PathProgramCache]: Analyzing trace with hash 162636459, now seen corresponding path program 185 times [2021-03-11 14:19:06,733 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:19:06,733 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1519627507] [2021-03-11 14:19:06,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:19:06,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:19:06,745 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:06,745 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:19:06,745 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:06,746 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:19:06,750 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:19:06,750 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:19:06,757 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:19:06,757 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:19:06,767 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:19:06,768 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:19:06,782 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:19:06,782 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:19:06,801 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:19:06,801 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:19:06,823 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:19:06,823 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:19:06,851 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:19:06,851 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:19:06,885 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:19:06,885 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:19:06,925 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:19:06,925 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:19:06,961 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:19:06,961 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1519627507] [2021-03-11 14:19:06,961 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:19:06,961 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:19:06,961 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [441609583] [2021-03-11 14:19:06,962 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:19:06,962 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:19:06,962 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:19:06,962 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:19:06,962 INFO L87 Difference]: Start difference. First operand 3123 states and 15577 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:07,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:19:07,201 INFO L93 Difference]: Finished difference Result 6025 states and 26844 transitions. [2021-03-11 14:19:07,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:19:07,201 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:19:07,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:19:07,215 INFO L225 Difference]: With dead ends: 6025 [2021-03-11 14:19:07,215 INFO L226 Difference]: Without dead ends: 6007 [2021-03-11 14:19:07,215 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 264.5ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:19:07,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6007 states. [2021-03-11 14:19:07,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6007 to 3130. [2021-03-11 14:19:07,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3130 states, 3129 states have (on average 4.982422499201022) internal successors, (15590), 3129 states have internal predecessors, (15590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:07,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3130 states to 3130 states and 15590 transitions. [2021-03-11 14:19:07,352 INFO L78 Accepts]: Start accepts. Automaton has 3130 states and 15590 transitions. Word has length 31 [2021-03-11 14:19:07,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:19:07,352 INFO L480 AbstractCegarLoop]: Abstraction has 3130 states and 15590 transitions. [2021-03-11 14:19:07,353 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:07,353 INFO L276 IsEmpty]: Start isEmpty. Operand 3130 states and 15590 transitions. [2021-03-11 14:19:07,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:19:07,357 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:19:07,357 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:19:07,357 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable193 [2021-03-11 14:19:07,357 INFO L428 AbstractCegarLoop]: === Iteration 195 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:19:07,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:19:07,358 INFO L82 PathProgramCache]: Analyzing trace with hash -1527306445, now seen corresponding path program 186 times [2021-03-11 14:19:07,358 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:19:07,358 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1624695797] [2021-03-11 14:19:07,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:19:07,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:19:07,369 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:07,370 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:19:07,370 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:07,370 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:19:07,374 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:19:07,374 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:19:07,381 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:19:07,382 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:19:07,392 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:19:07,392 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:19:07,407 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:19:07,407 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:19:07,425 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:19:07,426 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:19:07,448 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:19:07,448 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:19:07,476 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:19:07,476 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:19:07,510 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:19:07,511 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:19:07,551 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:19:07,551 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:19:07,588 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:19:07,588 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1624695797] [2021-03-11 14:19:07,588 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:19:07,588 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:19:07,588 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812308925] [2021-03-11 14:19:07,588 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:19:07,588 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:19:07,588 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:19:07,588 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:19:07,589 INFO L87 Difference]: Start difference. First operand 3130 states and 15590 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:07,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:19:07,761 INFO L93 Difference]: Finished difference Result 6026 states and 26839 transitions. [2021-03-11 14:19:07,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:19:07,761 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:19:07,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:19:07,774 INFO L225 Difference]: With dead ends: 6026 [2021-03-11 14:19:07,774 INFO L226 Difference]: Without dead ends: 5995 [2021-03-11 14:19:07,774 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 270.6ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:19:07,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5995 states. [2021-03-11 14:19:07,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5995 to 3118. [2021-03-11 14:19:07,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3118 states, 3117 states have (on average 4.992941931344241) internal successors, (15563), 3117 states have internal predecessors, (15563), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:07,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3118 states to 3118 states and 15563 transitions. [2021-03-11 14:19:07,910 INFO L78 Accepts]: Start accepts. Automaton has 3118 states and 15563 transitions. Word has length 31 [2021-03-11 14:19:07,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:19:07,910 INFO L480 AbstractCegarLoop]: Abstraction has 3118 states and 15563 transitions. [2021-03-11 14:19:07,910 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:07,910 INFO L276 IsEmpty]: Start isEmpty. Operand 3118 states and 15563 transitions. [2021-03-11 14:19:07,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:19:07,915 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:19:07,915 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:19:07,915 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable194 [2021-03-11 14:19:07,915 INFO L428 AbstractCegarLoop]: === Iteration 196 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:19:07,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:19:07,916 INFO L82 PathProgramCache]: Analyzing trace with hash -1013889417, now seen corresponding path program 187 times [2021-03-11 14:19:07,916 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:19:07,916 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [823625906] [2021-03-11 14:19:07,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:19:07,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:19:07,928 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:07,928 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:19:07,928 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:07,928 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:19:07,932 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:19:07,933 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:19:07,940 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:19:07,940 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:19:07,951 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:19:07,952 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:19:07,966 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:19:07,967 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:19:07,986 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:19:07,986 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:19:08,009 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:19:08,010 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:19:08,039 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:19:08,039 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:19:08,074 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:19:08,074 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:19:08,116 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:19:08,116 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:19:08,153 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:19:08,153 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [823625906] [2021-03-11 14:19:08,153 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:19:08,153 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:19:08,153 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1501088722] [2021-03-11 14:19:08,154 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:19:08,154 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:19:08,154 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:19:08,154 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:19:08,154 INFO L87 Difference]: Start difference. First operand 3118 states and 15563 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:08,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:19:08,316 INFO L93 Difference]: Finished difference Result 6039 states and 26886 transitions. [2021-03-11 14:19:08,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:19:08,317 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:19:08,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:19:08,330 INFO L225 Difference]: With dead ends: 6039 [2021-03-11 14:19:08,330 INFO L226 Difference]: Without dead ends: 6019 [2021-03-11 14:19:08,330 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 279.8ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:19:08,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6019 states. [2021-03-11 14:19:08,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6019 to 3132. [2021-03-11 14:19:08,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3132 states, 3131 states have (on average 4.983391887575855) internal successors, (15603), 3131 states have internal predecessors, (15603), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:08,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3132 states to 3132 states and 15603 transitions. [2021-03-11 14:19:08,466 INFO L78 Accepts]: Start accepts. Automaton has 3132 states and 15603 transitions. Word has length 31 [2021-03-11 14:19:08,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:19:08,466 INFO L480 AbstractCegarLoop]: Abstraction has 3132 states and 15603 transitions. [2021-03-11 14:19:08,466 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:08,466 INFO L276 IsEmpty]: Start isEmpty. Operand 3132 states and 15603 transitions. [2021-03-11 14:19:08,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:19:08,470 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:19:08,471 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:19:08,471 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable195 [2021-03-11 14:19:08,471 INFO L428 AbstractCegarLoop]: === Iteration 197 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:19:08,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:19:08,471 INFO L82 PathProgramCache]: Analyzing trace with hash 1591134975, now seen corresponding path program 188 times [2021-03-11 14:19:08,471 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:19:08,471 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [384070923] [2021-03-11 14:19:08,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:19:08,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:19:08,488 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:08,488 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:19:08,489 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:08,489 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:19:08,493 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:19:08,494 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:19:08,502 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:19:08,502 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:19:08,515 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:19:08,515 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:19:08,535 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:19:08,535 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:19:08,559 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:19:08,560 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:19:08,589 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:19:08,590 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:19:08,627 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:19:08,628 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:19:08,675 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:19:08,676 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:19:08,727 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:19:08,728 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:19:08,769 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:19:08,770 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [384070923] [2021-03-11 14:19:08,770 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:19:08,770 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:19:08,770 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1371559093] [2021-03-11 14:19:08,770 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:19:08,770 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:19:08,770 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:19:08,770 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:19:08,770 INFO L87 Difference]: Start difference. First operand 3132 states and 15603 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:08,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:19:08,932 INFO L93 Difference]: Finished difference Result 6037 states and 26875 transitions. [2021-03-11 14:19:08,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:19:08,933 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:19:08,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:19:08,946 INFO L225 Difference]: With dead ends: 6037 [2021-03-11 14:19:08,946 INFO L226 Difference]: Without dead ends: 6012 [2021-03-11 14:19:08,946 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 324.8ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:19:09,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6012 states. [2021-03-11 14:19:09,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6012 to 3125. [2021-03-11 14:19:09,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3125 states, 3124 states have (on average 4.988156209987196) internal successors, (15583), 3124 states have internal predecessors, (15583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:09,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3125 states to 3125 states and 15583 transitions. [2021-03-11 14:19:09,082 INFO L78 Accepts]: Start accepts. Automaton has 3125 states and 15583 transitions. Word has length 31 [2021-03-11 14:19:09,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:19:09,082 INFO L480 AbstractCegarLoop]: Abstraction has 3125 states and 15583 transitions. [2021-03-11 14:19:09,082 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:09,082 INFO L276 IsEmpty]: Start isEmpty. Operand 3125 states and 15583 transitions. [2021-03-11 14:19:09,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:19:09,087 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:19:09,087 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:19:09,087 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable196 [2021-03-11 14:19:09,087 INFO L428 AbstractCegarLoop]: === Iteration 198 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:19:09,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:19:09,087 INFO L82 PathProgramCache]: Analyzing trace with hash -1862511889, now seen corresponding path program 189 times [2021-03-11 14:19:09,087 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:19:09,087 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [91953434] [2021-03-11 14:19:09,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:19:09,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:19:09,099 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:09,099 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:19:09,100 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:09,100 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:19:09,104 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:19:09,104 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:19:09,111 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:19:09,112 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:19:09,122 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:19:09,123 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:19:09,137 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:19:09,138 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:19:09,156 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:19:09,156 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:19:09,179 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:19:09,180 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:19:09,209 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:19:09,210 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:19:09,245 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:19:09,246 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:19:09,287 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:19:09,287 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:19:09,325 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:19:09,325 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [91953434] [2021-03-11 14:19:09,325 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:19:09,325 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:19:09,325 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [720522092] [2021-03-11 14:19:09,325 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:19:09,325 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:19:09,326 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:19:09,326 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:19:09,326 INFO L87 Difference]: Start difference. First operand 3125 states and 15583 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:09,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:19:09,509 INFO L93 Difference]: Finished difference Result 6041 states and 26884 transitions. [2021-03-11 14:19:09,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:19:09,510 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:19:09,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:19:09,523 INFO L225 Difference]: With dead ends: 6041 [2021-03-11 14:19:09,523 INFO L226 Difference]: Without dead ends: 6021 [2021-03-11 14:19:09,523 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 280.6ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:19:09,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6021 states. [2021-03-11 14:19:09,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6021 to 3133. [2021-03-11 14:19:09,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3133 states, 3132 states have (on average 4.980204342273308) internal successors, (15598), 3132 states have internal predecessors, (15598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:09,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3133 states to 3133 states and 15598 transitions. [2021-03-11 14:19:09,660 INFO L78 Accepts]: Start accepts. Automaton has 3133 states and 15598 transitions. Word has length 31 [2021-03-11 14:19:09,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:19:09,660 INFO L480 AbstractCegarLoop]: Abstraction has 3133 states and 15598 transitions. [2021-03-11 14:19:09,660 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:09,660 INFO L276 IsEmpty]: Start isEmpty. Operand 3133 states and 15598 transitions. [2021-03-11 14:19:09,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:19:09,665 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:19:09,665 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:19:09,665 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable197 [2021-03-11 14:19:09,665 INFO L428 AbstractCegarLoop]: === Iteration 199 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:19:09,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:19:09,665 INFO L82 PathProgramCache]: Analyzing trace with hash -947430401, now seen corresponding path program 190 times [2021-03-11 14:19:09,665 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:19:09,665 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [820350058] [2021-03-11 14:19:09,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:19:09,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:19:09,677 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:09,677 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:19:09,678 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:09,678 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:19:09,682 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:19:09,682 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:19:09,689 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:19:09,690 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:19:09,701 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:19:09,701 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:19:09,716 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:19:09,716 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:19:09,735 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:19:09,735 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:19:09,758 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:19:09,758 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:19:09,787 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:19:09,788 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:19:09,823 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:19:09,823 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:19:09,864 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:19:09,864 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:19:09,902 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:19:09,902 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [820350058] [2021-03-11 14:19:09,902 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:19:09,902 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:19:09,902 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [595791222] [2021-03-11 14:19:09,902 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:19:09,902 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:19:09,902 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:19:09,902 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:19:09,902 INFO L87 Difference]: Start difference. First operand 3133 states and 15598 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:10,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:19:10,079 INFO L93 Difference]: Finished difference Result 6040 states and 26874 transitions. [2021-03-11 14:19:10,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:19:10,080 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:19:10,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:19:10,093 INFO L225 Difference]: With dead ends: 6040 [2021-03-11 14:19:10,093 INFO L226 Difference]: Without dead ends: 6013 [2021-03-11 14:19:10,093 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 277.4ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:19:10,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6013 states. [2021-03-11 14:19:10,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6013 to 3125. [2021-03-11 14:19:10,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3125 states, 3124 states have (on average 4.985915492957746) internal successors, (15576), 3124 states have internal predecessors, (15576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:10,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3125 states to 3125 states and 15576 transitions. [2021-03-11 14:19:10,229 INFO L78 Accepts]: Start accepts. Automaton has 3125 states and 15576 transitions. Word has length 31 [2021-03-11 14:19:10,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:19:10,229 INFO L480 AbstractCegarLoop]: Abstraction has 3125 states and 15576 transitions. [2021-03-11 14:19:10,229 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:10,229 INFO L276 IsEmpty]: Start isEmpty. Operand 3125 states and 15576 transitions. [2021-03-11 14:19:10,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:19:10,234 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:19:10,234 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:19:10,234 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable198 [2021-03-11 14:19:10,234 INFO L428 AbstractCegarLoop]: === Iteration 200 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:19:10,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:19:10,234 INFO L82 PathProgramCache]: Analyzing trace with hash -106109969, now seen corresponding path program 191 times [2021-03-11 14:19:10,234 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:19:10,234 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2026520231] [2021-03-11 14:19:10,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:19:10,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:19:10,248 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:10,249 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:19:10,249 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:10,249 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:19:10,253 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:19:10,253 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:19:10,260 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:19:10,261 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:19:10,271 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:19:10,272 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:19:10,286 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:19:10,287 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:19:10,305 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:19:10,305 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:19:10,328 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:19:10,328 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:19:10,357 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:19:10,358 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:19:10,393 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:19:10,393 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:19:10,434 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:19:10,434 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:19:10,471 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:19:10,471 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2026520231] [2021-03-11 14:19:10,471 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:19:10,471 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:19:10,471 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1747308393] [2021-03-11 14:19:10,471 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:19:10,471 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:19:10,472 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:19:10,472 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:19:10,472 INFO L87 Difference]: Start difference. First operand 3125 states and 15576 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:10,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:19:10,642 INFO L93 Difference]: Finished difference Result 6036 states and 26866 transitions. [2021-03-11 14:19:10,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:19:10,642 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:19:10,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:19:10,656 INFO L225 Difference]: With dead ends: 6036 [2021-03-11 14:19:10,656 INFO L226 Difference]: Without dead ends: 6018 [2021-03-11 14:19:10,656 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 270.5ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:19:10,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6018 states. [2021-03-11 14:19:10,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6018 to 3132. [2021-03-11 14:19:10,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3132 states, 3131 states have (on average 4.9789204726924305) internal successors, (15589), 3131 states have internal predecessors, (15589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:10,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3132 states to 3132 states and 15589 transitions. [2021-03-11 14:19:10,795 INFO L78 Accepts]: Start accepts. Automaton has 3132 states and 15589 transitions. Word has length 31 [2021-03-11 14:19:10,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:19:10,795 INFO L480 AbstractCegarLoop]: Abstraction has 3132 states and 15589 transitions. [2021-03-11 14:19:10,795 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:10,795 INFO L276 IsEmpty]: Start isEmpty. Operand 3132 states and 15589 transitions. [2021-03-11 14:19:10,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:19:10,800 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:19:10,800 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:19:10,800 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable199 [2021-03-11 14:19:10,800 INFO L428 AbstractCegarLoop]: === Iteration 201 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:19:10,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:19:10,801 INFO L82 PathProgramCache]: Analyzing trace with hash -1796052873, now seen corresponding path program 192 times [2021-03-11 14:19:10,801 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:19:10,801 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [567310468] [2021-03-11 14:19:10,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:19:10,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:19:10,818 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:10,818 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:19:10,819 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:10,819 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:19:10,823 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:19:10,824 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:19:10,832 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:19:10,832 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:19:10,844 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:19:10,845 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:19:10,865 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:19:10,865 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:19:10,889 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:19:10,889 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:19:10,919 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:19:10,919 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:19:10,961 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:19:10,961 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:19:11,005 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:19:11,006 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:19:11,047 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:19:11,047 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:19:11,085 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:19:11,085 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [567310468] [2021-03-11 14:19:11,085 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:19:11,085 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:19:11,085 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1083105074] [2021-03-11 14:19:11,085 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:19:11,085 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:19:11,086 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:19:11,086 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:19:11,086 INFO L87 Difference]: Start difference. First operand 3132 states and 15589 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:11,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:19:11,257 INFO L93 Difference]: Finished difference Result 6037 states and 26861 transitions. [2021-03-11 14:19:11,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:19:11,258 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:19:11,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:19:11,271 INFO L225 Difference]: With dead ends: 6037 [2021-03-11 14:19:11,271 INFO L226 Difference]: Without dead ends: 5999 [2021-03-11 14:19:11,271 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 317.9ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:19:11,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5999 states. [2021-03-11 14:19:11,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5999 to 3113. [2021-03-11 14:19:11,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3113 states, 3112 states have (on average 4.99646529562982) internal successors, (15549), 3112 states have internal predecessors, (15549), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:11,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3113 states to 3113 states and 15549 transitions. [2021-03-11 14:19:11,409 INFO L78 Accepts]: Start accepts. Automaton has 3113 states and 15549 transitions. Word has length 31 [2021-03-11 14:19:11,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:19:11,409 INFO L480 AbstractCegarLoop]: Abstraction has 3113 states and 15549 transitions. [2021-03-11 14:19:11,409 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:11,409 INFO L276 IsEmpty]: Start isEmpty. Operand 3113 states and 15549 transitions. [2021-03-11 14:19:11,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:19:11,414 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:19:11,414 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:19:11,414 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable200 [2021-03-11 14:19:11,414 INFO L428 AbstractCegarLoop]: === Iteration 202 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:19:11,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:19:11,415 INFO L82 PathProgramCache]: Analyzing trace with hash -1862146069, now seen corresponding path program 193 times [2021-03-11 14:19:11,415 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:19:11,415 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2072506254] [2021-03-11 14:19:11,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:19:11,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:19:11,426 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:11,427 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:19:11,427 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:11,427 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:19:11,431 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:19:11,432 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:19:11,439 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:19:11,439 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:19:11,450 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:19:11,450 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:19:11,465 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:19:11,465 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:19:11,484 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:19:11,484 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:19:11,524 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:19:11,524 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:19:11,569 INFO L142 QuantifierPusher]: treesize reduction 45, result has 59.1 percent of original size [2021-03-11 14:19:11,570 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:19:11,623 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:19:11,623 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:19:11,663 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:19:11,663 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:19:11,701 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:19:11,701 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2072506254] [2021-03-11 14:19:11,701 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:19:11,701 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:19:11,701 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [565077237] [2021-03-11 14:19:11,701 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:19:11,701 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:19:11,701 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:19:11,701 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:19:11,702 INFO L87 Difference]: Start difference. First operand 3113 states and 15549 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:11,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:19:11,905 INFO L93 Difference]: Finished difference Result 6053 states and 26922 transitions. [2021-03-11 14:19:11,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:19:11,905 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:19:11,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:19:11,918 INFO L225 Difference]: With dead ends: 6053 [2021-03-11 14:19:11,918 INFO L226 Difference]: Without dead ends: 6037 [2021-03-11 14:19:11,919 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 322.6ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:19:12,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6037 states. [2021-03-11 14:19:12,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6037 to 3133. [2021-03-11 14:19:12,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3133 states, 3132 states have (on average 4.985632183908046) internal successors, (15615), 3132 states have internal predecessors, (15615), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:12,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3133 states to 3133 states and 15615 transitions. [2021-03-11 14:19:12,054 INFO L78 Accepts]: Start accepts. Automaton has 3133 states and 15615 transitions. Word has length 31 [2021-03-11 14:19:12,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:19:12,054 INFO L480 AbstractCegarLoop]: Abstraction has 3133 states and 15615 transitions. [2021-03-11 14:19:12,054 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:12,055 INFO L276 IsEmpty]: Start isEmpty. Operand 3133 states and 15615 transitions. [2021-03-11 14:19:12,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:19:12,059 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:19:12,059 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:19:12,059 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable201 [2021-03-11 14:19:12,060 INFO L428 AbstractCegarLoop]: === Iteration 203 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:19:12,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:19:12,060 INFO L82 PathProgramCache]: Analyzing trace with hash 1587849775, now seen corresponding path program 194 times [2021-03-11 14:19:12,060 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:19:12,060 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1294951900] [2021-03-11 14:19:12,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:19:12,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:19:12,077 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:12,077 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:19:12,078 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:12,078 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:19:12,082 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:19:12,083 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:19:12,091 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:19:12,091 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:19:12,104 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:19:12,104 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:19:12,124 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:19:12,125 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:19:12,144 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:19:12,144 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:19:12,184 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:19:12,185 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:19:12,230 INFO L142 QuantifierPusher]: treesize reduction 45, result has 59.1 percent of original size [2021-03-11 14:19:12,231 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:19:12,284 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:19:12,285 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:19:12,326 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:19:12,327 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:19:12,364 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:19:12,364 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1294951900] [2021-03-11 14:19:12,364 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:19:12,364 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:19:12,364 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2132425770] [2021-03-11 14:19:12,364 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:19:12,365 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:19:12,365 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:19:12,365 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:19:12,365 INFO L87 Difference]: Start difference. First operand 3133 states and 15615 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:12,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:19:12,533 INFO L93 Difference]: Finished difference Result 6057 states and 26925 transitions. [2021-03-11 14:19:12,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:19:12,534 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:19:12,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:19:12,547 INFO L225 Difference]: With dead ends: 6057 [2021-03-11 14:19:12,547 INFO L226 Difference]: Without dead ends: 6032 [2021-03-11 14:19:12,547 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 339.9ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:19:12,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6032 states. [2021-03-11 14:19:12,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6032 to 3128. [2021-03-11 14:19:12,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3128 states, 3127 states have (on average 4.989126958746402) internal successors, (15601), 3127 states have internal predecessors, (15601), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:12,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3128 states to 3128 states and 15601 transitions. [2021-03-11 14:19:12,687 INFO L78 Accepts]: Start accepts. Automaton has 3128 states and 15601 transitions. Word has length 31 [2021-03-11 14:19:12,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:19:12,687 INFO L480 AbstractCegarLoop]: Abstraction has 3128 states and 15601 transitions. [2021-03-11 14:19:12,687 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:12,687 INFO L276 IsEmpty]: Start isEmpty. Operand 3128 states and 15601 transitions. [2021-03-11 14:19:12,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:19:12,693 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:19:12,693 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:19:12,693 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable202 [2021-03-11 14:19:12,693 INFO L428 AbstractCegarLoop]: === Iteration 204 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:19:12,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:19:12,693 INFO L82 PathProgramCache]: Analyzing trace with hash 947731901, now seen corresponding path program 195 times [2021-03-11 14:19:12,693 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:19:12,693 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2082045242] [2021-03-11 14:19:12,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:19:12,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:19:12,706 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:12,706 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:19:12,706 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:12,707 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:19:12,711 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:19:12,711 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:19:12,718 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:19:12,718 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:19:12,729 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:19:12,730 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:19:12,745 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:19:12,745 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:19:12,765 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:19:12,765 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:19:12,807 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:19:12,808 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:19:12,854 INFO L142 QuantifierPusher]: treesize reduction 54, result has 55.4 percent of original size [2021-03-11 14:19:12,854 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-03-11 14:19:12,908 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:19:12,908 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:19:12,949 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:19:12,949 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:19:12,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:19:12,987 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2082045242] [2021-03-11 14:19:12,987 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:19:12,987 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:19:12,987 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [905358395] [2021-03-11 14:19:12,987 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:19:12,987 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:19:12,987 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:19:12,987 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:19:12,987 INFO L87 Difference]: Start difference. First operand 3128 states and 15601 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:13,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:19:13,160 INFO L93 Difference]: Finished difference Result 6056 states and 26922 transitions. [2021-03-11 14:19:13,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:19:13,160 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:19:13,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:19:13,174 INFO L225 Difference]: With dead ends: 6056 [2021-03-11 14:19:13,174 INFO L226 Difference]: Without dead ends: 6040 [2021-03-11 14:19:13,174 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 329.1ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:19:13,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6040 states. [2021-03-11 14:19:13,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6040 to 3134. [2021-03-11 14:19:13,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3134 states, 3133 states have (on average 4.983083306734759) internal successors, (15612), 3133 states have internal predecessors, (15612), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:13,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3134 states to 3134 states and 15612 transitions. [2021-03-11 14:19:13,311 INFO L78 Accepts]: Start accepts. Automaton has 3134 states and 15612 transitions. Word has length 31 [2021-03-11 14:19:13,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:19:13,311 INFO L480 AbstractCegarLoop]: Abstraction has 3134 states and 15612 transitions. [2021-03-11 14:19:13,311 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:13,311 INFO L276 IsEmpty]: Start isEmpty. Operand 3134 states and 15612 transitions. [2021-03-11 14:19:13,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:19:13,316 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:19:13,316 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:19:13,316 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable203 [2021-03-11 14:19:13,316 INFO L428 AbstractCegarLoop]: === Iteration 205 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:19:13,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:19:13,316 INFO L82 PathProgramCache]: Analyzing trace with hash 1440327663, now seen corresponding path program 196 times [2021-03-11 14:19:13,316 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:19:13,316 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [73478379] [2021-03-11 14:19:13,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:19:13,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:19:13,328 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:13,329 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:19:13,329 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:13,329 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:19:13,333 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:19:13,333 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:19:13,341 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:19:13,341 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:19:13,352 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:19:13,352 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:19:13,367 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:19:13,367 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:19:13,386 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:19:13,387 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:19:13,428 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:19:13,428 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:19:13,475 INFO L142 QuantifierPusher]: treesize reduction 54, result has 55.4 percent of original size [2021-03-11 14:19:13,475 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-03-11 14:19:13,529 INFO L142 QuantifierPusher]: treesize reduction 72, result has 49.7 percent of original size [2021-03-11 14:19:13,530 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-03-11 14:19:13,572 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:19:13,573 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:19:13,610 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:19:13,610 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [73478379] [2021-03-11 14:19:13,610 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:19:13,610 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:19:13,611 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [800627576] [2021-03-11 14:19:13,611 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:19:13,611 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:19:13,611 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:19:13,611 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:19:13,611 INFO L87 Difference]: Start difference. First operand 3134 states and 15612 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:13,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:19:13,748 INFO L93 Difference]: Finished difference Result 6062 states and 26928 transitions. [2021-03-11 14:19:13,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:19:13,749 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:19:13,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:19:13,762 INFO L225 Difference]: With dead ends: 6062 [2021-03-11 14:19:13,762 INFO L226 Difference]: Without dead ends: 6034 [2021-03-11 14:19:13,762 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 302.4ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:19:13,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6034 states. [2021-03-11 14:19:13,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6034 to 3128. [2021-03-11 14:19:13,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3128 states, 3127 states have (on average 4.987208186760474) internal successors, (15595), 3127 states have internal predecessors, (15595), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:13,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3128 states to 3128 states and 15595 transitions. [2021-03-11 14:19:13,899 INFO L78 Accepts]: Start accepts. Automaton has 3128 states and 15595 transitions. Word has length 31 [2021-03-11 14:19:13,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:19:13,899 INFO L480 AbstractCegarLoop]: Abstraction has 3128 states and 15595 transitions. [2021-03-11 14:19:13,899 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:13,899 INFO L276 IsEmpty]: Start isEmpty. Operand 3128 states and 15595 transitions. [2021-03-11 14:19:13,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:19:13,904 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:19:13,904 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:19:13,904 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable204 [2021-03-11 14:19:13,904 INFO L428 AbstractCegarLoop]: === Iteration 206 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:19:13,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:19:13,904 INFO L82 PathProgramCache]: Analyzing trace with hash -321550787, now seen corresponding path program 197 times [2021-03-11 14:19:13,904 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:19:13,904 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1700605550] [2021-03-11 14:19:13,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:19:13,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:19:13,916 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:13,916 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:19:13,917 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:13,917 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:19:13,923 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:19:13,923 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:19:13,930 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:19:13,931 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:19:13,941 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:19:13,942 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:19:13,957 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:19:13,957 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:19:13,976 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:19:13,976 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:19:14,017 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:19:14,017 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:19:14,063 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:19:14,063 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:19:14,099 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:19:14,100 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:19:14,141 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:19:14,142 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:19:14,179 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:19:14,180 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1700605550] [2021-03-11 14:19:14,180 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:19:14,180 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:19:14,180 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [764582368] [2021-03-11 14:19:14,180 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:19:14,180 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:19:14,180 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:19:14,180 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:19:14,180 INFO L87 Difference]: Start difference. First operand 3128 states and 15595 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:14,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:19:14,374 INFO L93 Difference]: Finished difference Result 6069 states and 26945 transitions. [2021-03-11 14:19:14,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:19:14,375 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:19:14,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:19:14,387 INFO L225 Difference]: With dead ends: 6069 [2021-03-11 14:19:14,388 INFO L226 Difference]: Without dead ends: 6049 [2021-03-11 14:19:14,388 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 316.1ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:19:14,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6049 states. [2021-03-11 14:19:14,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6049 to 3139. [2021-03-11 14:19:14,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3139 states, 3138 states have (on average 4.9760994263862335) internal successors, (15615), 3138 states have internal predecessors, (15615), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:14,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3139 states to 3139 states and 15615 transitions. [2021-03-11 14:19:14,524 INFO L78 Accepts]: Start accepts. Automaton has 3139 states and 15615 transitions. Word has length 31 [2021-03-11 14:19:14,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:19:14,524 INFO L480 AbstractCegarLoop]: Abstraction has 3139 states and 15615 transitions. [2021-03-11 14:19:14,524 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:14,524 INFO L276 IsEmpty]: Start isEmpty. Operand 3139 states and 15615 transitions. [2021-03-11 14:19:14,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:19:14,529 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:19:14,529 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:19:14,529 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable205 [2021-03-11 14:19:14,529 INFO L428 AbstractCegarLoop]: === Iteration 207 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:19:14,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:19:14,529 INFO L82 PathProgramCache]: Analyzing trace with hash 1016016427, now seen corresponding path program 198 times [2021-03-11 14:19:14,529 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:19:14,529 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [191236460] [2021-03-11 14:19:14,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:19:14,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:19:14,541 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:14,542 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:19:14,542 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:14,542 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:19:14,546 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:19:14,547 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:19:14,554 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:19:14,554 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:19:14,565 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:19:14,566 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:19:14,581 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:19:14,582 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:19:14,601 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:19:14,601 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:19:14,642 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:19:14,642 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:19:14,688 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:19:14,688 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:19:14,725 INFO L142 QuantifierPusher]: treesize reduction 72, result has 49.7 percent of original size [2021-03-11 14:19:14,725 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-03-11 14:19:14,767 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:19:14,768 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:19:14,805 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:19:14,805 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [191236460] [2021-03-11 14:19:14,805 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:19:14,806 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:19:14,806 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [757570600] [2021-03-11 14:19:14,806 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:19:14,806 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:19:14,806 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:19:14,806 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:19:14,806 INFO L87 Difference]: Start difference. First operand 3139 states and 15615 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:14,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:19:14,942 INFO L93 Difference]: Finished difference Result 6071 states and 26939 transitions. [2021-03-11 14:19:14,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:19:14,942 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:19:14,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:19:14,955 INFO L225 Difference]: With dead ends: 6071 [2021-03-11 14:19:14,955 INFO L226 Difference]: Without dead ends: 6031 [2021-03-11 14:19:14,955 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 284.9ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:19:15,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6031 states. [2021-03-11 14:19:15,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6031 to 3121. [2021-03-11 14:19:15,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3121 states, 3120 states have (on average 4.99198717948718) internal successors, (15575), 3120 states have internal predecessors, (15575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:15,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3121 states to 3121 states and 15575 transitions. [2021-03-11 14:19:15,092 INFO L78 Accepts]: Start accepts. Automaton has 3121 states and 15575 transitions. Word has length 31 [2021-03-11 14:19:15,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:19:15,092 INFO L480 AbstractCegarLoop]: Abstraction has 3121 states and 15575 transitions. [2021-03-11 14:19:15,092 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:15,092 INFO L276 IsEmpty]: Start isEmpty. Operand 3121 states and 15575 transitions. [2021-03-11 14:19:15,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:19:15,097 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:19:15,097 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:19:15,097 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable206 [2021-03-11 14:19:15,097 INFO L428 AbstractCegarLoop]: === Iteration 208 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:19:15,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:19:15,097 INFO L82 PathProgramCache]: Analyzing trace with hash 150964365, now seen corresponding path program 199 times [2021-03-11 14:19:15,097 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:19:15,097 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [306721694] [2021-03-11 14:19:15,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:19:15,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:19:15,110 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:15,110 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:19:15,110 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:15,111 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:19:15,115 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:19:15,115 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:19:15,122 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:19:15,123 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:19:15,134 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:19:15,134 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:19:15,149 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:19:15,150 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:19:15,169 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:19:15,169 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:19:15,210 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:19:15,211 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:19:15,260 INFO L142 QuantifierPusher]: treesize reduction 45, result has 59.1 percent of original size [2021-03-11 14:19:15,260 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:19:15,315 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:19:15,316 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:19:15,356 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:19:15,357 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:19:15,395 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:19:15,395 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [306721694] [2021-03-11 14:19:15,395 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:19:15,395 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:19:15,395 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [70266153] [2021-03-11 14:19:15,395 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:19:15,395 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:19:15,395 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:19:15,395 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:19:15,396 INFO L87 Difference]: Start difference. First operand 3121 states and 15575 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:15,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:19:15,589 INFO L93 Difference]: Finished difference Result 6044 states and 26897 transitions. [2021-03-11 14:19:15,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:19:15,590 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:19:15,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:19:15,602 INFO L225 Difference]: With dead ends: 6044 [2021-03-11 14:19:15,602 INFO L226 Difference]: Without dead ends: 6028 [2021-03-11 14:19:15,603 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 333.8ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:19:15,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6028 states. [2021-03-11 14:19:15,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6028 to 3131. [2021-03-11 14:19:15,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3131 states, 3130 states have (on average 4.984984025559106) internal successors, (15603), 3130 states have internal predecessors, (15603), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:15,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3131 states to 3131 states and 15603 transitions. [2021-03-11 14:19:15,739 INFO L78 Accepts]: Start accepts. Automaton has 3131 states and 15603 transitions. Word has length 31 [2021-03-11 14:19:15,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:19:15,739 INFO L480 AbstractCegarLoop]: Abstraction has 3131 states and 15603 transitions. [2021-03-11 14:19:15,739 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:15,739 INFO L276 IsEmpty]: Start isEmpty. Operand 3131 states and 15603 transitions. [2021-03-11 14:19:15,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:19:15,744 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:19:15,744 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:19:15,744 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable207 [2021-03-11 14:19:15,744 INFO L428 AbstractCegarLoop]: === Iteration 209 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:19:15,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:19:15,744 INFO L82 PathProgramCache]: Analyzing trace with hash -694007087, now seen corresponding path program 200 times [2021-03-11 14:19:15,745 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:19:15,745 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [395541006] [2021-03-11 14:19:15,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:19:15,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:19:15,756 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:15,756 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:19:15,757 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:15,757 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:19:15,761 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:19:15,761 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:19:15,769 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:19:15,769 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:19:15,780 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:19:15,780 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:19:15,796 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:19:15,796 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:19:15,815 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:19:15,816 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:19:15,856 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:19:15,857 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:19:15,906 INFO L142 QuantifierPusher]: treesize reduction 45, result has 59.1 percent of original size [2021-03-11 14:19:15,906 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:19:15,961 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:19:15,962 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:19:16,004 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:19:16,005 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:19:16,045 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:19:16,045 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [395541006] [2021-03-11 14:19:16,045 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:19:16,045 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:19:16,045 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2435164] [2021-03-11 14:19:16,045 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:19:16,045 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:19:16,045 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:19:16,045 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:19:16,045 INFO L87 Difference]: Start difference. First operand 3131 states and 15603 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:16,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:19:16,243 INFO L93 Difference]: Finished difference Result 6048 states and 26900 transitions. [2021-03-11 14:19:16,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:19:16,244 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:19:16,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:19:16,257 INFO L225 Difference]: With dead ends: 6048 [2021-03-11 14:19:16,257 INFO L226 Difference]: Without dead ends: 6023 [2021-03-11 14:19:16,257 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 343.8ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:19:16,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6023 states. [2021-03-11 14:19:16,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6023 to 3126. [2021-03-11 14:19:16,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3126 states, 3125 states have (on average 4.98848) internal successors, (15589), 3125 states have internal predecessors, (15589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:16,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3126 states to 3126 states and 15589 transitions. [2021-03-11 14:19:16,397 INFO L78 Accepts]: Start accepts. Automaton has 3126 states and 15589 transitions. Word has length 31 [2021-03-11 14:19:16,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:19:16,397 INFO L480 AbstractCegarLoop]: Abstraction has 3126 states and 15589 transitions. [2021-03-11 14:19:16,397 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:16,397 INFO L276 IsEmpty]: Start isEmpty. Operand 3126 states and 15589 transitions. [2021-03-11 14:19:16,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:19:16,402 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:19:16,402 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:19:16,402 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable208 [2021-03-11 14:19:16,402 INFO L428 AbstractCegarLoop]: === Iteration 210 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:19:16,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:19:16,402 INFO L82 PathProgramCache]: Analyzing trace with hash -1546280579, now seen corresponding path program 201 times [2021-03-11 14:19:16,402 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:19:16,402 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1731390546] [2021-03-11 14:19:16,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:19:16,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:19:16,418 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:16,419 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:19:16,419 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:16,419 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:19:16,424 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:19:16,424 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:19:16,433 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:19:16,433 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:19:16,444 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:19:16,445 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:19:16,460 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:19:16,460 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:19:16,479 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:19:16,480 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:19:16,522 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:19:16,522 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:19:16,571 INFO L142 QuantifierPusher]: treesize reduction 45, result has 59.1 percent of original size [2021-03-11 14:19:16,572 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:19:16,631 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:19:16,632 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:19:16,673 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:19:16,673 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:19:16,711 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:19:16,711 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1731390546] [2021-03-11 14:19:16,711 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:19:16,711 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:19:16,711 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1961380228] [2021-03-11 14:19:16,712 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:19:16,712 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:19:16,712 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:19:16,712 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:19:16,712 INFO L87 Difference]: Start difference. First operand 3126 states and 15589 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:16,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:19:16,875 INFO L93 Difference]: Finished difference Result 6043 states and 26890 transitions. [2021-03-11 14:19:16,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:19:16,876 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:19:16,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:19:16,888 INFO L225 Difference]: With dead ends: 6043 [2021-03-11 14:19:16,888 INFO L226 Difference]: Without dead ends: 6027 [2021-03-11 14:19:16,889 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 341.5ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:19:16,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6027 states. [2021-03-11 14:19:17,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6027 to 3131. [2021-03-11 14:19:17,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3131 states, 3130 states have (on average 4.983386581469649) internal successors, (15598), 3130 states have internal predecessors, (15598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:17,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3131 states to 3131 states and 15598 transitions. [2021-03-11 14:19:17,024 INFO L78 Accepts]: Start accepts. Automaton has 3131 states and 15598 transitions. Word has length 31 [2021-03-11 14:19:17,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:19:17,024 INFO L480 AbstractCegarLoop]: Abstraction has 3131 states and 15598 transitions. [2021-03-11 14:19:17,024 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:17,024 INFO L276 IsEmpty]: Start isEmpty. Operand 3131 states and 15598 transitions. [2021-03-11 14:19:17,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:19:17,029 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:19:17,029 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:19:17,029 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable209 [2021-03-11 14:19:17,029 INFO L428 AbstractCegarLoop]: === Iteration 211 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:19:17,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:19:17,030 INFO L82 PathProgramCache]: Analyzing trace with hash -1476170543, now seen corresponding path program 202 times [2021-03-11 14:19:17,030 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:19:17,030 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2032304747] [2021-03-11 14:19:17,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:19:17,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:19:17,041 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:17,042 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:19:17,042 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:17,042 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:19:17,047 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:19:17,047 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:19:17,054 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:19:17,055 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:19:17,066 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:19:17,066 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:19:17,081 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:19:17,082 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:19:17,101 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:19:17,102 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:19:17,143 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:19:17,144 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:19:17,193 INFO L142 QuantifierPusher]: treesize reduction 45, result has 59.1 percent of original size [2021-03-11 14:19:17,193 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:19:17,252 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:19:17,252 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:19:17,295 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:19:17,295 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:19:17,333 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:19:17,333 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2032304747] [2021-03-11 14:19:17,333 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:19:17,333 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:19:17,333 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1328346449] [2021-03-11 14:19:17,334 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:19:17,334 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:19:17,334 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:19:17,334 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:19:17,334 INFO L87 Difference]: Start difference. First operand 3131 states and 15598 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:17,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:19:17,515 INFO L93 Difference]: Finished difference Result 6046 states and 26891 transitions. [2021-03-11 14:19:17,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:19:17,515 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:19:17,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:19:17,528 INFO L225 Difference]: With dead ends: 6046 [2021-03-11 14:19:17,529 INFO L226 Difference]: Without dead ends: 6022 [2021-03-11 14:19:17,529 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 344.6ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:19:17,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6022 states. [2021-03-11 14:19:17,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6022 to 3126. [2021-03-11 14:19:17,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3126 states, 3125 states have (on average 4.98688) internal successors, (15584), 3125 states have internal predecessors, (15584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:17,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3126 states to 3126 states and 15584 transitions. [2021-03-11 14:19:17,665 INFO L78 Accepts]: Start accepts. Automaton has 3126 states and 15584 transitions. Word has length 31 [2021-03-11 14:19:17,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:19:17,665 INFO L480 AbstractCegarLoop]: Abstraction has 3126 states and 15584 transitions. [2021-03-11 14:19:17,665 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:17,665 INFO L276 IsEmpty]: Start isEmpty. Operand 3126 states and 15584 transitions. [2021-03-11 14:19:17,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:19:17,670 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:19:17,670 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:19:17,670 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable210 [2021-03-11 14:19:17,670 INFO L428 AbstractCegarLoop]: === Iteration 212 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:19:17,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:19:17,670 INFO L82 PathProgramCache]: Analyzing trace with hash 1479404029, now seen corresponding path program 203 times [2021-03-11 14:19:17,670 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:19:17,670 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [964240711] [2021-03-11 14:19:17,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:19:17,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:19:17,687 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:17,687 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:19:17,687 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:17,688 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:19:17,692 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:19:17,692 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:19:17,700 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:19:17,700 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:19:17,712 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:19:17,712 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:19:17,728 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:19:17,728 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:19:17,747 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:19:17,747 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:19:17,788 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:19:17,789 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:19:17,838 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:19:17,838 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:19:17,874 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:19:17,874 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:19:17,916 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:19:17,917 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:19:17,954 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:19:17,955 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [964240711] [2021-03-11 14:19:17,955 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:19:17,955 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:19:17,955 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1354579397] [2021-03-11 14:19:17,955 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:19:17,955 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:19:17,955 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:19:17,955 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:19:17,955 INFO L87 Difference]: Start difference. First operand 3126 states and 15584 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:18,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:19:18,176 INFO L93 Difference]: Finished difference Result 6054 states and 26910 transitions. [2021-03-11 14:19:18,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:19:18,176 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:19:18,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:19:18,189 INFO L225 Difference]: With dead ends: 6054 [2021-03-11 14:19:18,189 INFO L226 Difference]: Without dead ends: 6034 [2021-03-11 14:19:18,189 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 322.3ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:19:18,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6034 states. [2021-03-11 14:19:18,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6034 to 3134. [2021-03-11 14:19:18,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3134 states, 3133 states have (on average 4.978933929141398) internal successors, (15599), 3133 states have internal predecessors, (15599), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:18,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3134 states to 3134 states and 15599 transitions. [2021-03-11 14:19:18,325 INFO L78 Accepts]: Start accepts. Automaton has 3134 states and 15599 transitions. Word has length 31 [2021-03-11 14:19:18,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:19:18,325 INFO L480 AbstractCegarLoop]: Abstraction has 3134 states and 15599 transitions. [2021-03-11 14:19:18,325 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:18,325 INFO L276 IsEmpty]: Start isEmpty. Operand 3134 states and 15599 transitions. [2021-03-11 14:19:18,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:19:18,330 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:19:18,330 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:19:18,330 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable211 [2021-03-11 14:19:18,330 INFO L428 AbstractCegarLoop]: === Iteration 213 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:19:18,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:19:18,330 INFO L82 PathProgramCache]: Analyzing trace with hash -1900481779, now seen corresponding path program 204 times [2021-03-11 14:19:18,330 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:19:18,330 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [180648905] [2021-03-11 14:19:18,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:19:18,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:19:18,342 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:18,342 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:19:18,342 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:18,343 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:19:18,347 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:19:18,347 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:19:18,355 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:19:18,355 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:19:18,366 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:19:18,366 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:19:18,381 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:19:18,382 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:19:18,401 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:19:18,401 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:19:18,442 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:19:18,442 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:19:18,491 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:19:18,491 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:19:18,527 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:19:18,527 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:19:18,572 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:19:18,573 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:19:18,611 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:19:18,611 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [180648905] [2021-03-11 14:19:18,611 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:19:18,611 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:19:18,611 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1511842197] [2021-03-11 14:19:18,612 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:19:18,612 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:19:18,612 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:19:18,612 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:19:18,612 INFO L87 Difference]: Start difference. First operand 3134 states and 15599 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:18,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:19:18,833 INFO L93 Difference]: Finished difference Result 6053 states and 26900 transitions. [2021-03-11 14:19:18,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:19:18,834 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:19:18,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:19:18,847 INFO L225 Difference]: With dead ends: 6053 [2021-03-11 14:19:18,847 INFO L226 Difference]: Without dead ends: 6021 [2021-03-11 14:19:18,847 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 319.7ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:19:18,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6021 states. [2021-03-11 14:19:18,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6021 to 3121. [2021-03-11 14:19:18,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3121 states, 3120 states have (on average 4.990384615384615) internal successors, (15570), 3120 states have internal predecessors, (15570), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:18,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3121 states to 3121 states and 15570 transitions. [2021-03-11 14:19:18,986 INFO L78 Accepts]: Start accepts. Automaton has 3121 states and 15570 transitions. Word has length 31 [2021-03-11 14:19:18,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:19:18,986 INFO L480 AbstractCegarLoop]: Abstraction has 3121 states and 15570 transitions. [2021-03-11 14:19:18,986 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:18,986 INFO L276 IsEmpty]: Start isEmpty. Operand 3121 states and 15570 transitions. [2021-03-11 14:19:18,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:19:18,991 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:19:18,991 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:19:18,991 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable212 [2021-03-11 14:19:18,991 INFO L428 AbstractCegarLoop]: === Iteration 214 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:19:18,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:19:18,991 INFO L82 PathProgramCache]: Analyzing trace with hash -127253811, now seen corresponding path program 205 times [2021-03-11 14:19:18,991 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:19:18,991 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [128016733] [2021-03-11 14:19:18,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:19:18,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:19:19,003 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:19,003 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:19:19,004 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:19,004 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:19:19,008 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:19:19,008 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:19:19,016 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:19:19,016 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:19:19,027 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:19:19,028 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:19:19,043 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:19:19,043 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:19:19,062 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:19:19,063 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:19:19,104 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:19:19,104 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:19:19,153 INFO L142 QuantifierPusher]: treesize reduction 54, result has 55.4 percent of original size [2021-03-11 14:19:19,153 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-03-11 14:19:19,206 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:19:19,207 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:19:19,248 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:19:19,249 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:19:19,286 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:19:19,286 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [128016733] [2021-03-11 14:19:19,287 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:19:19,287 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:19:19,287 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2046142800] [2021-03-11 14:19:19,287 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:19:19,287 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:19:19,287 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:19:19,287 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:19:19,287 INFO L87 Difference]: Start difference. First operand 3121 states and 15570 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:19,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:19:19,461 INFO L93 Difference]: Finished difference Result 6052 states and 26907 transitions. [2021-03-11 14:19:19,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:19:19,461 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:19:19,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:19:19,474 INFO L225 Difference]: With dead ends: 6052 [2021-03-11 14:19:19,474 INFO L226 Difference]: Without dead ends: 6036 [2021-03-11 14:19:19,474 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 333.6ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:19:19,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6036 states. [2021-03-11 14:19:19,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6036 to 3133. [2021-03-11 14:19:19,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3133 states, 3132 states have (on average 4.981800766283525) internal successors, (15603), 3132 states have internal predecessors, (15603), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:19,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3133 states to 3133 states and 15603 transitions. [2021-03-11 14:19:19,611 INFO L78 Accepts]: Start accepts. Automaton has 3133 states and 15603 transitions. Word has length 31 [2021-03-11 14:19:19,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:19:19,611 INFO L480 AbstractCegarLoop]: Abstraction has 3133 states and 15603 transitions. [2021-03-11 14:19:19,611 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:19,611 INFO L276 IsEmpty]: Start isEmpty. Operand 3133 states and 15603 transitions. [2021-03-11 14:19:19,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:19:19,616 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:19:19,616 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:19:19,616 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable213 [2021-03-11 14:19:19,616 INFO L428 AbstractCegarLoop]: === Iteration 215 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:19:19,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:19:19,616 INFO L82 PathProgramCache]: Analyzing trace with hash 365341951, now seen corresponding path program 206 times [2021-03-11 14:19:19,616 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:19:19,616 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [811916757] [2021-03-11 14:19:19,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:19:19,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:19:19,633 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:19,634 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:19:19,634 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:19,635 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:19:19,639 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:19:19,640 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:19:19,648 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:19:19,648 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:19:19,661 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:19:19,661 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:19:19,677 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:19:19,678 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:19:19,698 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:19:19,698 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:19:19,740 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:19:19,741 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:19:19,790 INFO L142 QuantifierPusher]: treesize reduction 54, result has 55.4 percent of original size [2021-03-11 14:19:19,791 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-03-11 14:19:19,846 INFO L142 QuantifierPusher]: treesize reduction 72, result has 49.7 percent of original size [2021-03-11 14:19:19,846 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-03-11 14:19:19,890 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:19:19,891 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:19:19,929 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:19:19,929 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [811916757] [2021-03-11 14:19:19,929 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:19:19,929 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:19:19,929 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1699873303] [2021-03-11 14:19:19,930 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:19:19,930 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:19:19,930 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:19:19,930 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:19:19,930 INFO L87 Difference]: Start difference. First operand 3133 states and 15603 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:20,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:19:20,104 INFO L93 Difference]: Finished difference Result 6058 states and 26913 transitions. [2021-03-11 14:19:20,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:19:20,104 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:19:20,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:19:20,118 INFO L225 Difference]: With dead ends: 6058 [2021-03-11 14:19:20,118 INFO L226 Difference]: Without dead ends: 6030 [2021-03-11 14:19:20,118 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 316.8ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:19:20,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6030 states. [2021-03-11 14:19:20,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6030 to 3127. [2021-03-11 14:19:20,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3127 states, 3126 states have (on average 4.985924504158669) internal successors, (15586), 3126 states have internal predecessors, (15586), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:20,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3127 states to 3127 states and 15586 transitions. [2021-03-11 14:19:20,255 INFO L78 Accepts]: Start accepts. Automaton has 3127 states and 15586 transitions. Word has length 31 [2021-03-11 14:19:20,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:19:20,255 INFO L480 AbstractCegarLoop]: Abstraction has 3127 states and 15586 transitions. [2021-03-11 14:19:20,255 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:20,255 INFO L276 IsEmpty]: Start isEmpty. Operand 3127 states and 15586 transitions. [2021-03-11 14:19:20,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:19:20,260 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:19:20,260 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:19:20,260 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable214 [2021-03-11 14:19:20,260 INFO L428 AbstractCegarLoop]: === Iteration 216 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:19:20,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:19:20,260 INFO L82 PathProgramCache]: Analyzing trace with hash -339409429, now seen corresponding path program 207 times [2021-03-11 14:19:20,260 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:19:20,260 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1633390089] [2021-03-11 14:19:20,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:19:20,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:19:20,272 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:20,272 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:19:20,272 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:20,273 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:19:20,277 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:19:20,277 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:19:20,285 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:19:20,285 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:19:20,296 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:19:20,297 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:19:20,312 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:19:20,313 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:19:20,333 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:19:20,333 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:19:20,375 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:19:20,375 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:19:20,425 INFO L142 QuantifierPusher]: treesize reduction 45, result has 59.1 percent of original size [2021-03-11 14:19:20,426 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:19:20,485 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:19:20,485 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:19:20,527 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:19:20,528 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:19:20,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:19:20,567 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1633390089] [2021-03-11 14:19:20,567 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:19:20,568 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:19:20,568 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [599829759] [2021-03-11 14:19:20,568 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:19:20,568 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:19:20,568 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:19:20,568 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:19:20,568 INFO L87 Difference]: Start difference. First operand 3127 states and 15586 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:20,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:19:20,749 INFO L93 Difference]: Finished difference Result 6048 states and 26894 transitions. [2021-03-11 14:19:20,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:19:20,750 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:19:20,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:19:20,763 INFO L225 Difference]: With dead ends: 6048 [2021-03-11 14:19:20,763 INFO L226 Difference]: Without dead ends: 6032 [2021-03-11 14:19:20,763 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 347.0ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:19:20,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6032 states. [2021-03-11 14:19:20,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6032 to 3132. [2021-03-11 14:19:20,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3132 states, 3131 states have (on average 4.980836793356755) internal successors, (15595), 3131 states have internal predecessors, (15595), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:20,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3132 states to 3132 states and 15595 transitions. [2021-03-11 14:19:20,898 INFO L78 Accepts]: Start accepts. Automaton has 3132 states and 15595 transitions. Word has length 31 [2021-03-11 14:19:20,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:19:20,898 INFO L480 AbstractCegarLoop]: Abstraction has 3132 states and 15595 transitions. [2021-03-11 14:19:20,898 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:20,899 INFO L276 IsEmpty]: Start isEmpty. Operand 3132 states and 15595 transitions. [2021-03-11 14:19:20,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:19:20,903 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:19:20,903 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:19:20,903 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable215 [2021-03-11 14:19:20,903 INFO L428 AbstractCegarLoop]: === Iteration 217 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:19:20,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:19:20,904 INFO L82 PathProgramCache]: Analyzing trace with hash -269299393, now seen corresponding path program 208 times [2021-03-11 14:19:20,904 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:19:20,904 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [795564565] [2021-03-11 14:19:20,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:19:20,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:19:20,915 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:20,916 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:19:20,916 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:20,916 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:19:20,920 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:19:20,921 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:19:20,928 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:19:20,929 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:19:20,940 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:19:20,941 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:19:20,956 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:19:20,957 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:19:20,976 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:19:20,977 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:19:21,019 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:19:21,020 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:19:21,070 INFO L142 QuantifierPusher]: treesize reduction 45, result has 59.1 percent of original size [2021-03-11 14:19:21,071 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:19:21,131 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:19:21,131 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:19:21,174 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:19:21,175 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:19:21,213 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:19:21,213 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [795564565] [2021-03-11 14:19:21,213 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:19:21,213 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:19:21,213 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [197163468] [2021-03-11 14:19:21,214 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:19:21,214 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:19:21,214 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:19:21,214 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:19:21,214 INFO L87 Difference]: Start difference. First operand 3132 states and 15595 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:21,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:19:21,405 INFO L93 Difference]: Finished difference Result 6051 states and 26895 transitions. [2021-03-11 14:19:21,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:19:21,405 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:19:21,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:19:21,418 INFO L225 Difference]: With dead ends: 6051 [2021-03-11 14:19:21,418 INFO L226 Difference]: Without dead ends: 6027 [2021-03-11 14:19:21,419 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 351.0ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:19:21,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6027 states. [2021-03-11 14:19:21,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6027 to 3127. [2021-03-11 14:19:21,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3127 states, 3126 states have (on average 4.984325015994882) internal successors, (15581), 3126 states have internal predecessors, (15581), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:21,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3127 states to 3127 states and 15581 transitions. [2021-03-11 14:19:21,558 INFO L78 Accepts]: Start accepts. Automaton has 3127 states and 15581 transitions. Word has length 31 [2021-03-11 14:19:21,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:19:21,558 INFO L480 AbstractCegarLoop]: Abstraction has 3127 states and 15581 transitions. [2021-03-11 14:19:21,558 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:21,558 INFO L276 IsEmpty]: Start isEmpty. Operand 3127 states and 15581 transitions. [2021-03-11 14:19:21,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:19:21,563 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:19:21,563 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:19:21,563 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable216 [2021-03-11 14:19:21,563 INFO L428 AbstractCegarLoop]: === Iteration 218 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:19:21,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:19:21,563 INFO L82 PathProgramCache]: Analyzing trace with hash -1756214229, now seen corresponding path program 209 times [2021-03-11 14:19:21,563 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:19:21,563 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [393550188] [2021-03-11 14:19:21,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:19:21,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:19:21,575 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:21,575 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:19:21,576 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:21,576 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:19:21,580 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:19:21,581 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:19:21,588 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:19:21,588 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:19:21,600 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:19:21,600 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:19:21,616 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:19:21,617 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:19:21,636 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:19:21,637 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:19:21,678 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:19:21,678 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:19:21,729 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:19:21,729 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:19:21,766 INFO L142 QuantifierPusher]: treesize reduction 72, result has 49.7 percent of original size [2021-03-11 14:19:21,766 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-03-11 14:19:21,809 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:19:21,810 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:19:21,848 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:19:21,849 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [393550188] [2021-03-11 14:19:21,849 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:19:21,849 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:19:21,849 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [930676560] [2021-03-11 14:19:21,849 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:19:21,849 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:19:21,849 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:19:21,849 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:19:21,849 INFO L87 Difference]: Start difference. First operand 3127 states and 15581 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:22,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:19:22,019 INFO L93 Difference]: Finished difference Result 6064 states and 26922 transitions. [2021-03-11 14:19:22,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:19:22,019 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:19:22,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:19:22,032 INFO L225 Difference]: With dead ends: 6064 [2021-03-11 14:19:22,032 INFO L226 Difference]: Without dead ends: 6042 [2021-03-11 14:19:22,032 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 294.9ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:19:22,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6042 states. [2021-03-11 14:19:22,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6042 to 3136. [2021-03-11 14:19:22,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3136 states, 3135 states have (on average 4.97511961722488) internal successors, (15597), 3135 states have internal predecessors, (15597), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:22,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3136 states to 3136 states and 15597 transitions. [2021-03-11 14:19:22,168 INFO L78 Accepts]: Start accepts. Automaton has 3136 states and 15597 transitions. Word has length 31 [2021-03-11 14:19:22,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:19:22,169 INFO L480 AbstractCegarLoop]: Abstraction has 3136 states and 15597 transitions. [2021-03-11 14:19:22,169 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:22,169 INFO L276 IsEmpty]: Start isEmpty. Operand 3136 states and 15597 transitions. [2021-03-11 14:19:22,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:19:22,173 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:19:22,173 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:19:22,174 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable217 [2021-03-11 14:19:22,174 INFO L428 AbstractCegarLoop]: === Iteration 219 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:19:22,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:19:22,174 INFO L82 PathProgramCache]: Analyzing trace with hash 2116267341, now seen corresponding path program 210 times [2021-03-11 14:19:22,174 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:19:22,174 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [703191491] [2021-03-11 14:19:22,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:19:22,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:19:22,191 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:22,191 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:19:22,192 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:22,192 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:19:22,197 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:19:22,197 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:19:22,205 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:19:22,206 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:19:22,218 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:19:22,218 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:19:22,234 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:19:22,234 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:19:22,254 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:19:22,255 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:19:22,296 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:19:22,296 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:19:22,345 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:19:22,346 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:19:22,382 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:19:22,383 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:19:22,425 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:19:22,425 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:19:22,463 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:19:22,463 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [703191491] [2021-03-11 14:19:22,463 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:19:22,464 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:19:22,464 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1639991285] [2021-03-11 14:19:22,464 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:19:22,464 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:19:22,464 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:19:22,464 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:19:22,464 INFO L87 Difference]: Start difference. First operand 3136 states and 15597 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:22,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:19:22,641 INFO L93 Difference]: Finished difference Result 6061 states and 26908 transitions. [2021-03-11 14:19:22,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:19:22,642 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:19:22,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:19:22,655 INFO L225 Difference]: With dead ends: 6061 [2021-03-11 14:19:22,655 INFO L226 Difference]: Without dead ends: 6027 [2021-03-11 14:19:22,655 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 326.0ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:19:22,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6027 states. [2021-03-11 14:19:22,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6027 to 3121. [2021-03-11 14:19:22,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3121 states, 3120 states have (on average 4.9884615384615385) internal successors, (15564), 3120 states have internal predecessors, (15564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:22,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3121 states to 3121 states and 15564 transitions. [2021-03-11 14:19:22,791 INFO L78 Accepts]: Start accepts. Automaton has 3121 states and 15564 transitions. Word has length 31 [2021-03-11 14:19:22,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:19:22,791 INFO L480 AbstractCegarLoop]: Abstraction has 3121 states and 15564 transitions. [2021-03-11 14:19:22,791 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:22,791 INFO L276 IsEmpty]: Start isEmpty. Operand 3121 states and 15564 transitions. [2021-03-11 14:19:22,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:19:22,796 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:19:22,796 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:19:22,796 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable218 [2021-03-11 14:19:22,796 INFO L428 AbstractCegarLoop]: === Iteration 220 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:19:22,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:19:22,796 INFO L82 PathProgramCache]: Analyzing trace with hash -1665282927, now seen corresponding path program 211 times [2021-03-11 14:19:22,796 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:19:22,796 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1309944655] [2021-03-11 14:19:22,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:19:22,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:19:22,810 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:22,811 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:19:22,811 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:22,811 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:19:22,816 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:19:22,816 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:19:22,825 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:19:22,825 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:19:22,836 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:19:22,837 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:19:22,852 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:19:22,853 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:19:22,873 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:19:22,873 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:19:22,915 INFO L142 QuantifierPusher]: treesize reduction 54, result has 50.5 percent of original size [2021-03-11 14:19:22,916 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-11 14:19:22,947 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:19:22,948 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:19:22,984 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:19:22,985 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:19:23,027 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:19:23,028 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:19:23,066 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:19:23,067 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1309944655] [2021-03-11 14:19:23,067 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:19:23,067 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:19:23,067 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2007257272] [2021-03-11 14:19:23,067 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:19:23,067 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:19:23,067 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:19:23,067 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:19:23,067 INFO L87 Difference]: Start difference. First operand 3121 states and 15564 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:23,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:19:23,234 INFO L93 Difference]: Finished difference Result 6082 states and 26975 transitions. [2021-03-11 14:19:23,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:19:23,235 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:19:23,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:19:23,248 INFO L225 Difference]: With dead ends: 6082 [2021-03-11 14:19:23,248 INFO L226 Difference]: Without dead ends: 6062 [2021-03-11 14:19:23,248 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 311.7ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:19:23,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6062 states. [2021-03-11 14:19:23,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6062 to 3143. [2021-03-11 14:19:23,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3143 states, 3142 states have (on average 4.971674092934436) internal successors, (15621), 3142 states have internal predecessors, (15621), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:23,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3143 states to 3143 states and 15621 transitions. [2021-03-11 14:19:23,385 INFO L78 Accepts]: Start accepts. Automaton has 3143 states and 15621 transitions. Word has length 31 [2021-03-11 14:19:23,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:19:23,385 INFO L480 AbstractCegarLoop]: Abstraction has 3143 states and 15621 transitions. [2021-03-11 14:19:23,385 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:23,385 INFO L276 IsEmpty]: Start isEmpty. Operand 3143 states and 15621 transitions. [2021-03-11 14:19:23,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:19:23,390 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:19:23,390 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:19:23,390 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable219 [2021-03-11 14:19:23,390 INFO L428 AbstractCegarLoop]: === Iteration 221 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:19:23,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:19:23,390 INFO L82 PathProgramCache]: Analyzing trace with hash -327715713, now seen corresponding path program 212 times [2021-03-11 14:19:23,391 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:19:23,391 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [493806376] [2021-03-11 14:19:23,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:19:23,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:19:23,404 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:23,404 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:19:23,404 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:23,405 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:19:23,409 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:19:23,409 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:19:23,417 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:19:23,417 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:19:23,429 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:19:23,430 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:19:23,445 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:19:23,446 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:19:23,465 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:19:23,466 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:19:23,507 INFO L142 QuantifierPusher]: treesize reduction 54, result has 50.5 percent of original size [2021-03-11 14:19:23,508 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-11 14:19:23,539 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:19:23,540 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:19:23,577 INFO L142 QuantifierPusher]: treesize reduction 72, result has 49.7 percent of original size [2021-03-11 14:19:23,577 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-03-11 14:19:23,620 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:19:23,621 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:19:23,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:19:23,660 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [493806376] [2021-03-11 14:19:23,660 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:19:23,660 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:19:23,660 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1688663807] [2021-03-11 14:19:23,660 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:19:23,660 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:19:23,661 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:19:23,661 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:19:23,661 INFO L87 Difference]: Start difference. First operand 3143 states and 15621 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:23,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:19:23,797 INFO L93 Difference]: Finished difference Result 6084 states and 26969 transitions. [2021-03-11 14:19:23,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:19:23,798 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:19:23,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:19:23,810 INFO L225 Difference]: With dead ends: 6084 [2021-03-11 14:19:23,811 INFO L226 Difference]: Without dead ends: 6051 [2021-03-11 14:19:23,811 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 277.9ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:19:23,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6051 states. [2021-03-11 14:19:23,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6051 to 3132. [2021-03-11 14:19:23,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3132 states, 3131 states have (on average 4.979559246247206) internal successors, (15591), 3131 states have internal predecessors, (15591), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:23,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3132 states to 3132 states and 15591 transitions. [2021-03-11 14:19:23,946 INFO L78 Accepts]: Start accepts. Automaton has 3132 states and 15591 transitions. Word has length 31 [2021-03-11 14:19:23,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:19:23,946 INFO L480 AbstractCegarLoop]: Abstraction has 3132 states and 15591 transitions. [2021-03-11 14:19:23,946 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:23,946 INFO L276 IsEmpty]: Start isEmpty. Operand 3132 states and 15591 transitions. [2021-03-11 14:19:23,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:19:23,951 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:19:23,951 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:19:23,951 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable220 [2021-03-11 14:19:23,951 INFO L428 AbstractCegarLoop]: === Iteration 222 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:19:23,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:19:23,952 INFO L82 PathProgramCache]: Analyzing trace with hash -1877438545, now seen corresponding path program 213 times [2021-03-11 14:19:23,952 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:19:23,952 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [59094444] [2021-03-11 14:19:23,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:19:23,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:19:23,963 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:23,963 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:19:23,964 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:23,964 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:19:23,968 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:19:23,969 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:19:23,976 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:19:23,977 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:19:23,988 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:19:23,988 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:19:24,004 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:19:24,004 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:19:24,025 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:19:24,025 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:19:24,067 INFO L142 QuantifierPusher]: treesize reduction 54, result has 50.5 percent of original size [2021-03-11 14:19:24,068 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-11 14:19:24,099 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:19:24,099 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:19:24,135 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:19:24,136 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:19:24,178 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:19:24,179 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:19:24,217 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:19:24,218 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [59094444] [2021-03-11 14:19:24,218 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:19:24,218 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:19:24,218 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1001985779] [2021-03-11 14:19:24,218 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:19:24,218 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:19:24,218 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:19:24,218 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:19:24,218 INFO L87 Difference]: Start difference. First operand 3132 states and 15591 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:24,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:19:24,417 INFO L93 Difference]: Finished difference Result 6076 states and 26954 transitions. [2021-03-11 14:19:24,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:19:24,417 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:19:24,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:19:24,430 INFO L225 Difference]: With dead ends: 6076 [2021-03-11 14:19:24,430 INFO L226 Difference]: Without dead ends: 6056 [2021-03-11 14:19:24,430 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 310.3ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:19:24,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6056 states. [2021-03-11 14:19:24,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6056 to 3140. [2021-03-11 14:19:24,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3140 states, 3139 states have (on average 4.971647021344377) internal successors, (15606), 3139 states have internal predecessors, (15606), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:24,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3140 states to 3140 states and 15606 transitions. [2021-03-11 14:19:24,565 INFO L78 Accepts]: Start accepts. Automaton has 3140 states and 15606 transitions. Word has length 31 [2021-03-11 14:19:24,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:19:24,565 INFO L480 AbstractCegarLoop]: Abstraction has 3140 states and 15606 transitions. [2021-03-11 14:19:24,565 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:24,565 INFO L276 IsEmpty]: Start isEmpty. Operand 3140 states and 15606 transitions. [2021-03-11 14:19:24,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:19:24,570 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:19:24,570 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:19:24,570 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable221 [2021-03-11 14:19:24,570 INFO L428 AbstractCegarLoop]: === Iteration 223 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:19:24,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:19:24,570 INFO L82 PathProgramCache]: Analyzing trace with hash -962357057, now seen corresponding path program 214 times [2021-03-11 14:19:24,570 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:19:24,571 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [502601435] [2021-03-11 14:19:24,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:19:24,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:19:24,582 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:24,582 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:19:24,583 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:24,583 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:19:24,587 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:19:24,587 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:19:24,595 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:19:24,596 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:19:24,607 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:19:24,607 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:19:24,623 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:19:24,624 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:19:24,644 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:19:24,645 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:19:24,687 INFO L142 QuantifierPusher]: treesize reduction 54, result has 50.5 percent of original size [2021-03-11 14:19:24,687 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-11 14:19:24,718 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:19:24,719 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:19:24,755 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:19:24,755 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:19:24,797 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:19:24,798 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:19:24,836 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:19:24,837 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [502601435] [2021-03-11 14:19:24,837 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:19:24,837 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:19:24,837 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [637241418] [2021-03-11 14:19:24,837 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:19:24,837 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:19:24,837 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:19:24,837 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:19:24,837 INFO L87 Difference]: Start difference. First operand 3140 states and 15606 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:25,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:19:25,073 INFO L93 Difference]: Finished difference Result 6075 states and 26944 transitions. [2021-03-11 14:19:25,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:19:25,073 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:19:25,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:19:25,086 INFO L225 Difference]: With dead ends: 6075 [2021-03-11 14:19:25,086 INFO L226 Difference]: Without dead ends: 6048 [2021-03-11 14:19:25,087 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 308.3ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:19:25,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6048 states. [2021-03-11 14:19:25,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6048 to 3132. [2021-03-11 14:19:25,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3132 states, 3131 states have (on average 4.977004152028106) internal successors, (15583), 3131 states have internal predecessors, (15583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:25,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3132 states to 3132 states and 15583 transitions. [2021-03-11 14:19:25,268 INFO L78 Accepts]: Start accepts. Automaton has 3132 states and 15583 transitions. Word has length 31 [2021-03-11 14:19:25,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:19:25,268 INFO L480 AbstractCegarLoop]: Abstraction has 3132 states and 15583 transitions. [2021-03-11 14:19:25,269 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:25,269 INFO L276 IsEmpty]: Start isEmpty. Operand 3132 states and 15583 transitions. [2021-03-11 14:19:25,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:19:25,273 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:19:25,273 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:19:25,274 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable222 [2021-03-11 14:19:25,274 INFO L428 AbstractCegarLoop]: === Iteration 224 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:19:25,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:19:25,274 INFO L82 PathProgramCache]: Analyzing trace with hash -2024960657, now seen corresponding path program 215 times [2021-03-11 14:19:25,274 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:19:25,274 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1030911868] [2021-03-11 14:19:25,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:19:25,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:19:25,295 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:25,296 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:19:25,296 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:25,296 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:19:25,301 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:19:25,301 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:19:25,309 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:19:25,310 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:19:25,321 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:19:25,321 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:19:25,336 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:19:25,336 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:19:25,355 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:19:25,355 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:19:25,396 INFO L142 QuantifierPusher]: treesize reduction 54, result has 50.5 percent of original size [2021-03-11 14:19:25,396 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-11 14:19:25,427 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:19:25,427 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:19:25,463 INFO L142 QuantifierPusher]: treesize reduction 72, result has 49.7 percent of original size [2021-03-11 14:19:25,463 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-03-11 14:19:25,505 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:19:25,506 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:19:25,543 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:19:25,543 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1030911868] [2021-03-11 14:19:25,543 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:19:25,543 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:19:25,543 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1304825079] [2021-03-11 14:19:25,543 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:19:25,543 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:19:25,544 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:19:25,544 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:19:25,544 INFO L87 Difference]: Start difference. First operand 3132 states and 15583 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:25,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:19:25,717 INFO L93 Difference]: Finished difference Result 6081 states and 26954 transitions. [2021-03-11 14:19:25,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:19:25,718 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:19:25,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:19:25,731 INFO L225 Difference]: With dead ends: 6081 [2021-03-11 14:19:25,731 INFO L226 Difference]: Without dead ends: 6059 [2021-03-11 14:19:25,731 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 267.4ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:19:25,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6059 states. [2021-03-11 14:19:25,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6059 to 3141. [2021-03-11 14:19:25,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3141 states, 3140 states have (on average 4.967834394904458) internal successors, (15599), 3140 states have internal predecessors, (15599), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:25,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3141 states to 3141 states and 15599 transitions. [2021-03-11 14:19:25,866 INFO L78 Accepts]: Start accepts. Automaton has 3141 states and 15599 transitions. Word has length 31 [2021-03-11 14:19:25,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:19:25,866 INFO L480 AbstractCegarLoop]: Abstraction has 3141 states and 15599 transitions. [2021-03-11 14:19:25,867 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:25,867 INFO L276 IsEmpty]: Start isEmpty. Operand 3141 states and 15599 transitions. [2021-03-11 14:19:25,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:19:25,871 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:19:25,871 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:19:25,871 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable223 [2021-03-11 14:19:25,871 INFO L428 AbstractCegarLoop]: === Iteration 225 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:19:25,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:19:25,872 INFO L82 PathProgramCache]: Analyzing trace with hash 1847520913, now seen corresponding path program 216 times [2021-03-11 14:19:25,872 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:19:25,872 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [137603491] [2021-03-11 14:19:25,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:19:25,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:19:25,883 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:25,884 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:19:25,884 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:25,884 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:19:25,889 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:19:25,889 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:19:25,896 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:19:25,896 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:19:25,907 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:19:25,908 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:19:25,923 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:19:25,923 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:19:25,942 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:19:25,942 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:19:25,984 INFO L142 QuantifierPusher]: treesize reduction 54, result has 50.5 percent of original size [2021-03-11 14:19:25,984 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-11 14:19:26,015 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:19:26,015 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:19:26,050 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:19:26,051 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:19:26,091 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:19:26,092 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:19:26,129 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:19:26,129 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [137603491] [2021-03-11 14:19:26,129 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:19:26,129 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:19:26,129 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [558581467] [2021-03-11 14:19:26,130 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:19:26,130 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:19:26,130 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:19:26,130 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:19:26,130 INFO L87 Difference]: Start difference. First operand 3141 states and 15599 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:26,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:19:26,321 INFO L93 Difference]: Finished difference Result 6078 states and 26940 transitions. [2021-03-11 14:19:26,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:19:26,321 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:19:26,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:19:26,334 INFO L225 Difference]: With dead ends: 6078 [2021-03-11 14:19:26,334 INFO L226 Difference]: Without dead ends: 6031 [2021-03-11 14:19:26,335 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 298.5ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:19:26,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6031 states. [2021-03-11 14:19:26,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6031 to 3113. [2021-03-11 14:19:26,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3113 states, 3112 states have (on average 4.993894601542417) internal successors, (15541), 3112 states have internal predecessors, (15541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:26,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3113 states to 3113 states and 15541 transitions. [2021-03-11 14:19:26,471 INFO L78 Accepts]: Start accepts. Automaton has 3113 states and 15541 transitions. Word has length 31 [2021-03-11 14:19:26,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:19:26,471 INFO L480 AbstractCegarLoop]: Abstraction has 3113 states and 15541 transitions. [2021-03-11 14:19:26,471 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:26,471 INFO L276 IsEmpty]: Start isEmpty. Operand 3113 states and 15541 transitions. [2021-03-11 14:19:26,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:19:26,476 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:19:26,476 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:19:26,476 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable224 [2021-03-11 14:19:26,476 INFO L428 AbstractCegarLoop]: === Iteration 226 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:19:26,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:19:26,477 INFO L82 PathProgramCache]: Analyzing trace with hash 1564296547, now seen corresponding path program 217 times [2021-03-11 14:19:26,477 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:19:26,477 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1126910936] [2021-03-11 14:19:26,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:19:26,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:19:26,488 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:26,489 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:19:26,489 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:26,489 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:19:26,493 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:19:26,494 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:19:26,501 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:19:26,501 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:19:26,512 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:19:26,512 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:19:26,527 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:19:26,528 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:19:26,547 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:19:26,547 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:19:26,570 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:19:26,570 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:19:26,620 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:19:26,620 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:19:26,654 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:19:26,655 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:19:26,695 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:19:26,696 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:19:26,733 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:19:26,734 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1126910936] [2021-03-11 14:19:26,734 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:19:26,734 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:19:26,734 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1257610814] [2021-03-11 14:19:26,734 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:19:26,734 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:19:26,734 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:19:26,734 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:19:26,734 INFO L87 Difference]: Start difference. First operand 3113 states and 15541 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:26,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:19:26,922 INFO L93 Difference]: Finished difference Result 6033 states and 26869 transitions. [2021-03-11 14:19:26,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:19:26,923 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:19:26,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:19:26,935 INFO L225 Difference]: With dead ends: 6033 [2021-03-11 14:19:26,935 INFO L226 Difference]: Without dead ends: 6017 [2021-03-11 14:19:26,935 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 295.6ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:19:27,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6017 states. [2021-03-11 14:19:27,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6017 to 3130. [2021-03-11 14:19:27,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3130 states, 3129 states have (on average 4.9856184084372) internal successors, (15600), 3129 states have internal predecessors, (15600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:27,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3130 states to 3130 states and 15600 transitions. [2021-03-11 14:19:27,071 INFO L78 Accepts]: Start accepts. Automaton has 3130 states and 15600 transitions. Word has length 31 [2021-03-11 14:19:27,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:19:27,071 INFO L480 AbstractCegarLoop]: Abstraction has 3130 states and 15600 transitions. [2021-03-11 14:19:27,071 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:27,071 INFO L276 IsEmpty]: Start isEmpty. Operand 3130 states and 15600 transitions. [2021-03-11 14:19:27,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:19:27,076 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:19:27,076 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:19:27,076 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable225 [2021-03-11 14:19:27,076 INFO L428 AbstractCegarLoop]: === Iteration 227 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:19:27,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:19:27,076 INFO L82 PathProgramCache]: Analyzing trace with hash -970617809, now seen corresponding path program 218 times [2021-03-11 14:19:27,076 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:19:27,077 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [701582450] [2021-03-11 14:19:27,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:19:27,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:19:27,088 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:27,088 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:19:27,089 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:27,089 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:19:27,093 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:19:27,093 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:19:27,101 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:19:27,101 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:19:27,112 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:19:27,113 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:19:27,128 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:19:27,129 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:19:27,148 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:19:27,148 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:19:27,172 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:19:27,172 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:19:27,221 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:19:27,222 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:19:27,256 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:19:27,257 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:19:27,298 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:19:27,299 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:19:27,336 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:19:27,337 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [701582450] [2021-03-11 14:19:27,337 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:19:27,337 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:19:27,337 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [687901053] [2021-03-11 14:19:27,337 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:19:27,337 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:19:27,337 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:19:27,337 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:19:27,337 INFO L87 Difference]: Start difference. First operand 3130 states and 15600 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:27,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:19:27,553 INFO L93 Difference]: Finished difference Result 6035 states and 26868 transitions. [2021-03-11 14:19:27,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:19:27,554 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:19:27,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:19:27,567 INFO L225 Difference]: With dead ends: 6035 [2021-03-11 14:19:27,567 INFO L226 Difference]: Without dead ends: 6012 [2021-03-11 14:19:27,567 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 297.9ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:19:27,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6012 states. [2021-03-11 14:19:27,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6012 to 3125. [2021-03-11 14:19:27,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3125 states, 3124 states have (on average 4.989116517285531) internal successors, (15586), 3124 states have internal predecessors, (15586), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:27,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3125 states to 3125 states and 15586 transitions. [2021-03-11 14:19:27,703 INFO L78 Accepts]: Start accepts. Automaton has 3125 states and 15586 transitions. Word has length 31 [2021-03-11 14:19:27,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:19:27,704 INFO L480 AbstractCegarLoop]: Abstraction has 3125 states and 15586 transitions. [2021-03-11 14:19:27,704 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:27,704 INFO L276 IsEmpty]: Start isEmpty. Operand 3125 states and 15586 transitions. [2021-03-11 14:19:27,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:19:27,709 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:19:27,709 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:19:27,709 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable226 [2021-03-11 14:19:27,709 INFO L428 AbstractCegarLoop]: === Iteration 228 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:19:27,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:19:27,709 INFO L82 PathProgramCache]: Analyzing trace with hash 927829693, now seen corresponding path program 219 times [2021-03-11 14:19:27,709 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:19:27,709 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1558835751] [2021-03-11 14:19:27,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:19:27,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:19:27,724 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:27,724 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:19:27,725 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:27,725 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:19:27,729 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:19:27,730 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:19:27,737 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:19:27,737 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:19:27,748 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:19:27,749 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:19:27,765 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:19:27,766 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:19:27,786 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:19:27,786 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:19:27,811 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:19:27,811 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:19:27,861 INFO L142 QuantifierPusher]: treesize reduction 54, result has 55.4 percent of original size [2021-03-11 14:19:27,862 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-03-11 14:19:27,915 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:19:27,915 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:19:27,956 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:19:27,957 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:19:27,994 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:19:27,995 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1558835751] [2021-03-11 14:19:27,995 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:19:27,995 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:19:27,995 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [745528476] [2021-03-11 14:19:27,995 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:19:27,995 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:19:27,995 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:19:27,995 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:19:27,995 INFO L87 Difference]: Start difference. First operand 3125 states and 15586 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:28,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:19:28,165 INFO L93 Difference]: Finished difference Result 6038 states and 26873 transitions. [2021-03-11 14:19:28,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:19:28,165 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:19:28,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:19:28,178 INFO L225 Difference]: With dead ends: 6038 [2021-03-11 14:19:28,178 INFO L226 Difference]: Without dead ends: 6022 [2021-03-11 14:19:28,179 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 319.2ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:19:28,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6022 states. [2021-03-11 14:19:28,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6022 to 3131. [2021-03-11 14:19:28,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3131 states, 3130 states have (on average 4.9830670926517575) internal successors, (15597), 3130 states have internal predecessors, (15597), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:28,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3131 states to 3131 states and 15597 transitions. [2021-03-11 14:19:28,316 INFO L78 Accepts]: Start accepts. Automaton has 3131 states and 15597 transitions. Word has length 31 [2021-03-11 14:19:28,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:19:28,316 INFO L480 AbstractCegarLoop]: Abstraction has 3131 states and 15597 transitions. [2021-03-11 14:19:28,316 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:28,316 INFO L276 IsEmpty]: Start isEmpty. Operand 3131 states and 15597 transitions. [2021-03-11 14:19:28,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:19:28,321 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:19:28,321 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:19:28,321 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable227 [2021-03-11 14:19:28,321 INFO L428 AbstractCegarLoop]: === Iteration 229 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:19:28,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:19:28,322 INFO L82 PathProgramCache]: Analyzing trace with hash 1420425455, now seen corresponding path program 220 times [2021-03-11 14:19:28,322 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:19:28,322 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1795112964] [2021-03-11 14:19:28,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:19:28,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:19:28,336 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:28,336 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:19:28,336 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:28,337 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:19:28,341 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:19:28,342 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:19:28,350 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:19:28,350 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:19:28,363 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:19:28,363 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:19:28,378 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:19:28,379 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:19:28,398 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:19:28,398 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:19:28,422 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:19:28,423 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:19:28,472 INFO L142 QuantifierPusher]: treesize reduction 54, result has 55.4 percent of original size [2021-03-11 14:19:28,473 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-03-11 14:19:28,526 INFO L142 QuantifierPusher]: treesize reduction 72, result has 49.7 percent of original size [2021-03-11 14:19:28,527 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-03-11 14:19:28,570 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:19:28,570 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:19:28,608 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:19:28,608 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1795112964] [2021-03-11 14:19:28,608 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:19:28,608 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:19:28,608 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1054095842] [2021-03-11 14:19:28,608 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:19:28,608 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:19:28,609 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:19:28,609 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:19:28,609 INFO L87 Difference]: Start difference. First operand 3131 states and 15597 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:28,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:19:28,779 INFO L93 Difference]: Finished difference Result 6044 states and 26879 transitions. [2021-03-11 14:19:28,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:19:28,780 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:19:28,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:19:28,792 INFO L225 Difference]: With dead ends: 6044 [2021-03-11 14:19:28,793 INFO L226 Difference]: Without dead ends: 6016 [2021-03-11 14:19:28,793 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 292.3ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:19:28,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6016 states. [2021-03-11 14:19:28,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6016 to 3125. [2021-03-11 14:19:28,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3125 states, 3124 states have (on average 4.98719590268886) internal successors, (15580), 3124 states have internal predecessors, (15580), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:28,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3125 states to 3125 states and 15580 transitions. [2021-03-11 14:19:28,929 INFO L78 Accepts]: Start accepts. Automaton has 3125 states and 15580 transitions. Word has length 31 [2021-03-11 14:19:28,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:19:28,929 INFO L480 AbstractCegarLoop]: Abstraction has 3125 states and 15580 transitions. [2021-03-11 14:19:28,929 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:28,929 INFO L276 IsEmpty]: Start isEmpty. Operand 3125 states and 15580 transitions. [2021-03-11 14:19:28,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:19:28,934 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:19:28,934 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:19:28,934 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable228 [2021-03-11 14:19:28,934 INFO L428 AbstractCegarLoop]: === Iteration 230 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:19:28,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:19:28,934 INFO L82 PathProgramCache]: Analyzing trace with hash 1414948925, now seen corresponding path program 221 times [2021-03-11 14:19:28,935 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:19:28,935 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1338698321] [2021-03-11 14:19:28,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:19:28,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:19:28,946 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:28,947 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:19:28,947 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:28,947 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:19:28,951 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:19:28,952 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:19:28,959 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:19:28,960 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:19:28,971 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:19:28,971 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:19:28,987 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:19:28,987 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:19:29,006 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:19:29,007 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:19:29,031 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:19:29,031 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:19:29,082 INFO L142 QuantifierPusher]: treesize reduction 54, result has 55.4 percent of original size [2021-03-11 14:19:29,082 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-03-11 14:19:29,144 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:19:29,144 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:19:29,186 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:19:29,187 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:19:29,225 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:19:29,225 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1338698321] [2021-03-11 14:19:29,225 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:19:29,225 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:19:29,225 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [351392387] [2021-03-11 14:19:29,225 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:19:29,225 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:19:29,226 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:19:29,226 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:19:29,226 INFO L87 Difference]: Start difference. First operand 3125 states and 15580 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:29,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:19:29,404 INFO L93 Difference]: Finished difference Result 6044 states and 26881 transitions. [2021-03-11 14:19:29,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:19:29,404 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:19:29,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:19:29,417 INFO L225 Difference]: With dead ends: 6044 [2021-03-11 14:19:29,417 INFO L226 Difference]: Without dead ends: 6026 [2021-03-11 14:19:29,417 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 329.0ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:19:29,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6026 states. [2021-03-11 14:19:29,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6026 to 3133. [2021-03-11 14:19:29,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3133 states, 3132 states have (on average 4.979246487867178) internal successors, (15595), 3132 states have internal predecessors, (15595), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:29,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3133 states to 3133 states and 15595 transitions. [2021-03-11 14:19:29,555 INFO L78 Accepts]: Start accepts. Automaton has 3133 states and 15595 transitions. Word has length 31 [2021-03-11 14:19:29,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:19:29,555 INFO L480 AbstractCegarLoop]: Abstraction has 3133 states and 15595 transitions. [2021-03-11 14:19:29,555 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:29,555 INFO L276 IsEmpty]: Start isEmpty. Operand 3133 states and 15595 transitions. [2021-03-11 14:19:29,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:19:29,560 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:19:29,560 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:19:29,560 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable229 [2021-03-11 14:19:29,560 INFO L428 AbstractCegarLoop]: === Iteration 231 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:19:29,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:19:29,560 INFO L82 PathProgramCache]: Analyzing trace with hash 147491747, now seen corresponding path program 222 times [2021-03-11 14:19:29,560 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:19:29,560 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1335806872] [2021-03-11 14:19:29,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:19:29,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:19:29,572 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:29,572 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:19:29,573 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:29,573 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:19:29,577 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:19:29,577 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:19:29,585 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:19:29,585 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:19:29,597 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:19:29,597 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:19:29,612 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:19:29,613 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:19:29,632 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:19:29,633 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:19:29,656 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:19:29,657 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:19:29,706 INFO L142 QuantifierPusher]: treesize reduction 54, result has 55.4 percent of original size [2021-03-11 14:19:29,707 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-03-11 14:19:29,767 INFO L142 QuantifierPusher]: treesize reduction 72, result has 49.7 percent of original size [2021-03-11 14:19:29,768 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-03-11 14:19:29,811 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:19:29,811 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:19:29,849 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:19:29,849 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1335806872] [2021-03-11 14:19:29,849 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:19:29,849 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:19:29,849 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [155984618] [2021-03-11 14:19:29,849 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:19:29,849 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:19:29,850 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:19:29,850 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:19:29,850 INFO L87 Difference]: Start difference. First operand 3133 states and 15595 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:29,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:19:29,998 INFO L93 Difference]: Finished difference Result 6048 states and 26881 transitions. [2021-03-11 14:19:29,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:19:29,999 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:19:29,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:19:30,012 INFO L225 Difference]: With dead ends: 6048 [2021-03-11 14:19:30,012 INFO L226 Difference]: Without dead ends: 6012 [2021-03-11 14:19:30,012 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 299.0ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:19:30,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6012 states. [2021-03-11 14:19:30,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6012 to 3119. [2021-03-11 14:19:30,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3119 states, 3118 states have (on average 4.9913406029506096) internal successors, (15563), 3118 states have internal predecessors, (15563), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:30,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3119 states to 3119 states and 15563 transitions. [2021-03-11 14:19:30,151 INFO L78 Accepts]: Start accepts. Automaton has 3119 states and 15563 transitions. Word has length 31 [2021-03-11 14:19:30,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:19:30,152 INFO L480 AbstractCegarLoop]: Abstraction has 3119 states and 15563 transitions. [2021-03-11 14:19:30,152 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:30,152 INFO L276 IsEmpty]: Start isEmpty. Operand 3119 states and 15563 transitions. [2021-03-11 14:19:30,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:19:30,157 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:19:30,157 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:19:30,157 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable230 [2021-03-11 14:19:30,157 INFO L428 AbstractCegarLoop]: === Iteration 232 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:19:30,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:19:30,157 INFO L82 PathProgramCache]: Analyzing trace with hash -717560315, now seen corresponding path program 223 times [2021-03-11 14:19:30,157 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:19:30,157 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [601840125] [2021-03-11 14:19:30,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:19:30,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:19:30,169 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:30,169 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:19:30,170 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:30,170 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:19:30,174 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:19:30,174 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:19:30,182 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:19:30,183 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:19:30,194 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:19:30,195 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:19:30,210 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:19:30,211 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:19:30,231 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:19:30,231 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:19:30,255 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:19:30,256 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:19:30,285 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:19:30,285 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:19:30,320 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:19:30,321 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:19:30,363 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:19:30,363 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:19:30,402 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:19:30,402 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [601840125] [2021-03-11 14:19:30,402 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:19:30,402 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:19:30,402 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [232554043] [2021-03-11 14:19:30,403 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:19:30,403 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:19:30,403 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:19:30,403 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:19:30,403 INFO L87 Difference]: Start difference. First operand 3119 states and 15563 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:30,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:19:30,585 INFO L93 Difference]: Finished difference Result 6027 states and 26851 transitions. [2021-03-11 14:19:30,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:19:30,586 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:19:30,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:19:30,599 INFO L225 Difference]: With dead ends: 6027 [2021-03-11 14:19:30,599 INFO L226 Difference]: Without dead ends: 6011 [2021-03-11 14:19:30,599 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 284.5ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:19:30,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6011 states. [2021-03-11 14:19:30,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6011 to 3129. [2021-03-11 14:19:30,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3129 states, 3128 states have (on average 4.984335038363171) internal successors, (15591), 3128 states have internal predecessors, (15591), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:30,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3129 states to 3129 states and 15591 transitions. [2021-03-11 14:19:30,734 INFO L78 Accepts]: Start accepts. Automaton has 3129 states and 15591 transitions. Word has length 31 [2021-03-11 14:19:30,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:19:30,734 INFO L480 AbstractCegarLoop]: Abstraction has 3129 states and 15591 transitions. [2021-03-11 14:19:30,734 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:30,734 INFO L276 IsEmpty]: Start isEmpty. Operand 3129 states and 15591 transitions. [2021-03-11 14:19:30,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:19:30,739 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:19:30,739 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:19:30,739 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable231 [2021-03-11 14:19:30,739 INFO L428 AbstractCegarLoop]: === Iteration 233 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:19:30,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:19:30,739 INFO L82 PathProgramCache]: Analyzing trace with hash 1042492625, now seen corresponding path program 224 times [2021-03-11 14:19:30,739 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:19:30,739 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1595966575] [2021-03-11 14:19:30,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:19:30,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:19:30,753 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:30,754 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:19:30,754 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:30,754 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:19:30,759 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:19:30,759 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:19:30,767 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:19:30,767 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:19:30,778 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:19:30,779 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:19:30,794 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:19:30,795 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:19:30,815 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:19:30,815 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:19:30,839 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:19:30,840 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:19:30,869 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:19:30,869 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:19:30,906 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:19:30,907 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:19:30,949 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:19:30,950 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:19:30,989 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:19:30,989 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1595966575] [2021-03-11 14:19:30,989 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:19:30,989 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:19:30,989 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [618747696] [2021-03-11 14:19:30,989 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:19:30,989 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:19:30,989 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:19:30,989 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:19:30,990 INFO L87 Difference]: Start difference. First operand 3129 states and 15591 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:31,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:19:31,245 INFO L93 Difference]: Finished difference Result 6029 states and 26850 transitions. [2021-03-11 14:19:31,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:19:31,246 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:19:31,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:19:31,260 INFO L225 Difference]: With dead ends: 6029 [2021-03-11 14:19:31,260 INFO L226 Difference]: Without dead ends: 6006 [2021-03-11 14:19:31,260 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 285.8ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:19:31,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6006 states. [2021-03-11 14:19:31,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6006 to 3124. [2021-03-11 14:19:31,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3124 states, 3123 states have (on average 4.987832212616074) internal successors, (15577), 3123 states have internal predecessors, (15577), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:31,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3124 states to 3124 states and 15577 transitions. [2021-03-11 14:19:31,400 INFO L78 Accepts]: Start accepts. Automaton has 3124 states and 15577 transitions. Word has length 31 [2021-03-11 14:19:31,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:19:31,401 INFO L480 AbstractCegarLoop]: Abstraction has 3124 states and 15577 transitions. [2021-03-11 14:19:31,401 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:31,401 INFO L276 IsEmpty]: Start isEmpty. Operand 3124 states and 15577 transitions. [2021-03-11 14:19:31,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:19:31,406 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:19:31,406 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:19:31,406 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable232 [2021-03-11 14:19:31,406 INFO L428 AbstractCegarLoop]: === Iteration 234 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:19:31,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:19:31,406 INFO L82 PathProgramCache]: Analyzing trace with hash -1566182787, now seen corresponding path program 225 times [2021-03-11 14:19:31,406 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:19:31,406 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1743473157] [2021-03-11 14:19:31,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:19:31,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:19:31,418 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:31,418 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:19:31,418 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:31,419 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:19:31,423 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:19:31,423 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:19:31,431 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:19:31,431 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:19:31,443 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:19:31,443 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:19:31,459 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:19:31,460 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:19:31,479 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:19:31,480 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:19:31,504 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:19:31,504 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:19:31,533 INFO L142 QuantifierPusher]: treesize reduction 45, result has 59.1 percent of original size [2021-03-11 14:19:31,534 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:19:31,594 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:19:31,594 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:19:31,637 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:19:31,637 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:19:31,676 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:19:31,676 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1743473157] [2021-03-11 14:19:31,676 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:19:31,676 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:19:31,676 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1908183925] [2021-03-11 14:19:31,677 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:19:31,677 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:19:31,677 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:19:31,677 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:19:31,677 INFO L87 Difference]: Start difference. First operand 3124 states and 15577 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:31,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:19:31,932 INFO L93 Difference]: Finished difference Result 6028 states and 26848 transitions. [2021-03-11 14:19:31,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:19:31,933 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:19:31,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:19:31,946 INFO L225 Difference]: With dead ends: 6028 [2021-03-11 14:19:31,947 INFO L226 Difference]: Without dead ends: 6012 [2021-03-11 14:19:31,947 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 308.7ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:19:32,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6012 states. [2021-03-11 14:19:32,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6012 to 3129. [2021-03-11 14:19:32,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3129 states, 3128 states have (on average 4.982736572890025) internal successors, (15586), 3128 states have internal predecessors, (15586), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:32,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3129 states to 3129 states and 15586 transitions. [2021-03-11 14:19:32,092 INFO L78 Accepts]: Start accepts. Automaton has 3129 states and 15586 transitions. Word has length 31 [2021-03-11 14:19:32,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:19:32,092 INFO L480 AbstractCegarLoop]: Abstraction has 3129 states and 15586 transitions. [2021-03-11 14:19:32,092 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:32,092 INFO L276 IsEmpty]: Start isEmpty. Operand 3129 states and 15586 transitions. [2021-03-11 14:19:32,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:19:32,097 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:19:32,097 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:19:32,097 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable233 [2021-03-11 14:19:32,097 INFO L428 AbstractCegarLoop]: === Iteration 235 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:19:32,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:19:32,097 INFO L82 PathProgramCache]: Analyzing trace with hash -1496072751, now seen corresponding path program 226 times [2021-03-11 14:19:32,097 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:19:32,097 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [74154414] [2021-03-11 14:19:32,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:19:32,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:19:32,109 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:32,110 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:19:32,110 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:32,110 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:19:32,115 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:19:32,115 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:19:32,123 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:19:32,123 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:19:32,135 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:19:32,136 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:19:32,152 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:19:32,152 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:19:32,173 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:19:32,173 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:19:32,197 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:19:32,198 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:19:32,228 INFO L142 QuantifierPusher]: treesize reduction 45, result has 59.1 percent of original size [2021-03-11 14:19:32,228 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:19:32,289 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:19:32,289 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:19:32,333 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:19:32,334 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:19:32,373 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:19:32,373 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [74154414] [2021-03-11 14:19:32,373 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:19:32,373 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:19:32,374 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [681022603] [2021-03-11 14:19:32,374 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:19:32,374 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:19:32,374 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:19:32,374 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:19:32,374 INFO L87 Difference]: Start difference. First operand 3129 states and 15586 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:32,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:19:32,642 INFO L93 Difference]: Finished difference Result 6031 states and 26849 transitions. [2021-03-11 14:19:32,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:19:32,643 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:19:32,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:19:32,656 INFO L225 Difference]: With dead ends: 6031 [2021-03-11 14:19:32,657 INFO L226 Difference]: Without dead ends: 6007 [2021-03-11 14:19:32,657 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 319.2ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:19:32,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6007 states. [2021-03-11 14:19:32,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6007 to 3124. [2021-03-11 14:19:32,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3124 states, 3123 states have (on average 4.9862311879602945) internal successors, (15572), 3123 states have internal predecessors, (15572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:32,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3124 states to 3124 states and 15572 transitions. [2021-03-11 14:19:32,799 INFO L78 Accepts]: Start accepts. Automaton has 3124 states and 15572 transitions. Word has length 31 [2021-03-11 14:19:32,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:19:32,799 INFO L480 AbstractCegarLoop]: Abstraction has 3124 states and 15572 transitions. [2021-03-11 14:19:32,799 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:32,799 INFO L276 IsEmpty]: Start isEmpty. Operand 3124 states and 15572 transitions. [2021-03-11 14:19:32,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:19:32,804 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:19:32,804 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:19:32,804 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable234 [2021-03-11 14:19:32,804 INFO L428 AbstractCegarLoop]: === Iteration 236 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:19:32,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:19:32,805 INFO L82 PathProgramCache]: Analyzing trace with hash -1079063555, now seen corresponding path program 227 times [2021-03-11 14:19:32,805 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:19:32,805 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1180921470] [2021-03-11 14:19:32,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:19:32,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:19:32,819 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:32,820 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:19:32,820 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:32,820 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:19:32,825 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:19:32,825 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:19:32,833 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:19:32,833 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:19:32,845 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:19:32,846 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:19:32,862 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:19:32,863 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:19:32,883 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:19:32,884 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:19:32,909 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:19:32,909 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:19:32,939 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:19:32,939 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:19:32,976 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:19:32,976 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:19:33,019 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:19:33,019 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:19:33,058 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:19:33,058 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1180921470] [2021-03-11 14:19:33,058 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:19:33,058 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:19:33,058 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1040625424] [2021-03-11 14:19:33,058 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:19:33,058 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:19:33,059 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:19:33,059 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:19:33,059 INFO L87 Difference]: Start difference. First operand 3124 states and 15572 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:33,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:19:33,282 INFO L93 Difference]: Finished difference Result 6034 states and 26857 transitions. [2021-03-11 14:19:33,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:19:33,283 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:19:33,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:19:33,296 INFO L225 Difference]: With dead ends: 6034 [2021-03-11 14:19:33,296 INFO L226 Difference]: Without dead ends: 6016 [2021-03-11 14:19:33,296 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 287.6ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:19:33,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6016 states. [2021-03-11 14:19:33,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6016 to 3131. [2021-03-11 14:19:33,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3131 states, 3130 states have (on average 4.979233226837061) internal successors, (15585), 3130 states have internal predecessors, (15585), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:33,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3131 states to 3131 states and 15585 transitions. [2021-03-11 14:19:33,432 INFO L78 Accepts]: Start accepts. Automaton has 3131 states and 15585 transitions. Word has length 31 [2021-03-11 14:19:33,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:19:33,432 INFO L480 AbstractCegarLoop]: Abstraction has 3131 states and 15585 transitions. [2021-03-11 14:19:33,432 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:33,432 INFO L276 IsEmpty]: Start isEmpty. Operand 3131 states and 15585 transitions. [2021-03-11 14:19:33,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:19:33,437 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:19:33,437 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:19:33,437 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable235 [2021-03-11 14:19:33,437 INFO L428 AbstractCegarLoop]: === Iteration 237 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:19:33,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:19:33,437 INFO L82 PathProgramCache]: Analyzing trace with hash 1525960837, now seen corresponding path program 228 times [2021-03-11 14:19:33,437 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:19:33,437 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1121601531] [2021-03-11 14:19:33,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:19:33,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:19:33,451 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:33,451 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:19:33,451 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:33,452 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:19:33,456 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:19:33,456 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:19:33,464 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:19:33,464 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:19:33,476 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:19:33,476 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:19:33,492 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:19:33,492 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:19:33,512 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:19:33,512 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:19:33,536 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:19:33,536 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:19:33,576 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:19:33,576 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:19:33,623 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:19:33,624 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:19:33,679 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:19:33,680 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:19:33,729 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:19:33,730 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1121601531] [2021-03-11 14:19:33,730 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:19:33,730 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:19:33,730 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [203225984] [2021-03-11 14:19:33,730 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:19:33,730 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:19:33,730 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:19:33,730 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:19:33,730 INFO L87 Difference]: Start difference. First operand 3131 states and 15585 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:33,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:19:33,960 INFO L93 Difference]: Finished difference Result 6035 states and 26852 transitions. [2021-03-11 14:19:33,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:19:33,961 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:19:33,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:19:33,974 INFO L225 Difference]: With dead ends: 6035 [2021-03-11 14:19:33,974 INFO L226 Difference]: Without dead ends: 6004 [2021-03-11 14:19:33,974 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 323.1ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:19:34,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6004 states. [2021-03-11 14:19:34,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6004 to 3119. [2021-03-11 14:19:34,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3119 states, 3118 states have (on average 4.989737010904426) internal successors, (15558), 3118 states have internal predecessors, (15558), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:34,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3119 states to 3119 states and 15558 transitions. [2021-03-11 14:19:34,109 INFO L78 Accepts]: Start accepts. Automaton has 3119 states and 15558 transitions. Word has length 31 [2021-03-11 14:19:34,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:19:34,109 INFO L480 AbstractCegarLoop]: Abstraction has 3119 states and 15558 transitions. [2021-03-11 14:19:34,109 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:34,109 INFO L276 IsEmpty]: Start isEmpty. Operand 3119 states and 15558 transitions. [2021-03-11 14:19:34,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:19:34,114 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:19:34,114 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:19:34,114 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable236 [2021-03-11 14:19:34,114 INFO L428 AbstractCegarLoop]: === Iteration 238 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:19:34,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:19:34,114 INFO L82 PathProgramCache]: Analyzing trace with hash 390336837, now seen corresponding path program 229 times [2021-03-11 14:19:34,114 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:19:34,114 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [946673919] [2021-03-11 14:19:34,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:19:34,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:19:34,128 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:34,128 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:19:34,129 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:34,129 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:19:34,133 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:19:34,133 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:19:34,141 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:19:34,142 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:19:34,153 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:19:34,153 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:19:34,169 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:19:34,169 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:19:34,189 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:19:34,190 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:19:34,214 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:19:34,214 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:19:34,265 INFO L142 QuantifierPusher]: treesize reduction 54, result has 55.4 percent of original size [2021-03-11 14:19:34,265 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-03-11 14:19:34,320 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:19:34,320 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:19:34,362 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:19:34,363 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:19:34,401 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:19:34,401 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [946673919] [2021-03-11 14:19:34,402 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:19:34,402 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:19:34,402 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [283265445] [2021-03-11 14:19:34,402 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:19:34,402 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:19:34,402 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:19:34,402 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:19:34,402 INFO L87 Difference]: Start difference. First operand 3119 states and 15558 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:34,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:19:34,573 INFO L93 Difference]: Finished difference Result 6040 states and 26872 transitions. [2021-03-11 14:19:34,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:19:34,573 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:19:34,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:19:34,586 INFO L225 Difference]: With dead ends: 6040 [2021-03-11 14:19:34,586 INFO L226 Difference]: Without dead ends: 6024 [2021-03-11 14:19:34,586 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 323.7ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:19:34,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6024 states. [2021-03-11 14:19:34,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6024 to 3131. [2021-03-11 14:19:34,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3131 states, 3130 states have (on average 4.981150159744409) internal successors, (15591), 3130 states have internal predecessors, (15591), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:34,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3131 states to 3131 states and 15591 transitions. [2021-03-11 14:19:34,722 INFO L78 Accepts]: Start accepts. Automaton has 3131 states and 15591 transitions. Word has length 31 [2021-03-11 14:19:34,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:19:34,722 INFO L480 AbstractCegarLoop]: Abstraction has 3131 states and 15591 transitions. [2021-03-11 14:19:34,722 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:34,722 INFO L276 IsEmpty]: Start isEmpty. Operand 3131 states and 15591 transitions. [2021-03-11 14:19:34,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:19:34,727 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:19:34,727 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:19:34,727 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable237 [2021-03-11 14:19:34,727 INFO L428 AbstractCegarLoop]: === Iteration 239 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:19:34,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:19:34,727 INFO L82 PathProgramCache]: Analyzing trace with hash 882932599, now seen corresponding path program 230 times [2021-03-11 14:19:34,727 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:19:34,727 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [644997421] [2021-03-11 14:19:34,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:19:34,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:19:34,741 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:34,741 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:19:34,741 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:34,742 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:19:34,746 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:19:34,746 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:19:34,754 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:19:34,754 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:19:34,766 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:19:34,766 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:19:34,782 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:19:34,782 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:19:34,802 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:19:34,802 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:19:34,826 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:19:34,826 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:19:34,876 INFO L142 QuantifierPusher]: treesize reduction 54, result has 55.4 percent of original size [2021-03-11 14:19:34,877 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-03-11 14:19:34,931 INFO L142 QuantifierPusher]: treesize reduction 72, result has 49.7 percent of original size [2021-03-11 14:19:34,931 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-03-11 14:19:34,975 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:19:34,975 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:19:35,014 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:19:35,014 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [644997421] [2021-03-11 14:19:35,014 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:19:35,014 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:19:35,014 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937028848] [2021-03-11 14:19:35,014 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:19:35,014 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:19:35,014 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:19:35,014 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:19:35,015 INFO L87 Difference]: Start difference. First operand 3131 states and 15591 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:35,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:19:35,174 INFO L93 Difference]: Finished difference Result 6046 states and 26878 transitions. [2021-03-11 14:19:35,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:19:35,174 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:19:35,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:19:35,188 INFO L225 Difference]: With dead ends: 6046 [2021-03-11 14:19:35,188 INFO L226 Difference]: Without dead ends: 6018 [2021-03-11 14:19:35,188 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 295.5ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:19:35,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6018 states. [2021-03-11 14:19:35,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6018 to 3125. [2021-03-11 14:19:35,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3125 states, 3124 states have (on average 4.98527528809219) internal successors, (15574), 3124 states have internal predecessors, (15574), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:35,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3125 states to 3125 states and 15574 transitions. [2021-03-11 14:19:35,324 INFO L78 Accepts]: Start accepts. Automaton has 3125 states and 15574 transitions. Word has length 31 [2021-03-11 14:19:35,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:19:35,324 INFO L480 AbstractCegarLoop]: Abstraction has 3125 states and 15574 transitions. [2021-03-11 14:19:35,325 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:35,325 INFO L276 IsEmpty]: Start isEmpty. Operand 3125 states and 15574 transitions. [2021-03-11 14:19:35,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:19:35,329 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:19:35,329 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:19:35,329 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable238 [2021-03-11 14:19:35,329 INFO L428 AbstractCegarLoop]: === Iteration 240 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:19:35,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:19:35,330 INFO L82 PathProgramCache]: Analyzing trace with hash 178181219, now seen corresponding path program 231 times [2021-03-11 14:19:35,330 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:19:35,330 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [147011029] [2021-03-11 14:19:35,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:19:35,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:19:35,341 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:35,342 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:19:35,342 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:35,342 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:19:35,347 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:19:35,347 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:19:35,355 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:19:35,355 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:19:35,367 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:19:35,367 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:19:35,383 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:19:35,383 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:19:35,403 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:19:35,404 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:19:35,429 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:19:35,430 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:19:35,481 INFO L142 QuantifierPusher]: treesize reduction 45, result has 59.1 percent of original size [2021-03-11 14:19:35,482 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:19:35,542 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:19:35,542 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:19:35,585 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:19:35,585 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:19:35,624 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:19:35,624 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [147011029] [2021-03-11 14:19:35,624 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:19:35,624 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:19:35,624 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1228354909] [2021-03-11 14:19:35,624 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:19:35,624 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:19:35,624 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:19:35,624 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:19:35,624 INFO L87 Difference]: Start difference. First operand 3125 states and 15574 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:35,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:19:35,791 INFO L93 Difference]: Finished difference Result 6036 states and 26859 transitions. [2021-03-11 14:19:35,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:19:35,791 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:19:35,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:19:35,804 INFO L225 Difference]: With dead ends: 6036 [2021-03-11 14:19:35,804 INFO L226 Difference]: Without dead ends: 6020 [2021-03-11 14:19:35,804 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 333.1ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:19:35,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6020 states. [2021-03-11 14:19:35,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6020 to 3130. [2021-03-11 14:19:35,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3130 states, 3129 states have (on average 4.980185362735698) internal successors, (15583), 3129 states have internal predecessors, (15583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:35,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3130 states to 3130 states and 15583 transitions. [2021-03-11 14:19:35,939 INFO L78 Accepts]: Start accepts. Automaton has 3130 states and 15583 transitions. Word has length 31 [2021-03-11 14:19:35,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:19:35,939 INFO L480 AbstractCegarLoop]: Abstraction has 3130 states and 15583 transitions. [2021-03-11 14:19:35,939 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:35,939 INFO L276 IsEmpty]: Start isEmpty. Operand 3130 states and 15583 transitions. [2021-03-11 14:19:35,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:19:35,944 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:19:35,944 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:19:35,944 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable239 [2021-03-11 14:19:35,944 INFO L428 AbstractCegarLoop]: === Iteration 241 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:19:35,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:19:35,944 INFO L82 PathProgramCache]: Analyzing trace with hash 248291255, now seen corresponding path program 232 times [2021-03-11 14:19:35,944 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:19:35,944 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [17991134] [2021-03-11 14:19:35,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:19:35,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:19:35,956 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:35,956 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:19:35,956 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:35,957 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:19:35,961 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:19:35,961 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:19:35,969 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:19:35,969 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:19:35,981 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:19:35,981 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:19:35,997 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:19:35,997 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:19:36,017 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:19:36,017 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:19:36,042 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:19:36,042 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:19:36,093 INFO L142 QuantifierPusher]: treesize reduction 45, result has 59.1 percent of original size [2021-03-11 14:19:36,093 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:19:36,153 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:19:36,154 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:19:36,197 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:19:36,198 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:19:36,237 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:19:36,237 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [17991134] [2021-03-11 14:19:36,237 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:19:36,237 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:19:36,237 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [867587614] [2021-03-11 14:19:36,238 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:19:36,238 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:19:36,238 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:19:36,238 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:19:36,238 INFO L87 Difference]: Start difference. First operand 3130 states and 15583 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:36,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:19:36,412 INFO L93 Difference]: Finished difference Result 6039 states and 26860 transitions. [2021-03-11 14:19:36,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:19:36,413 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:19:36,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:19:36,425 INFO L225 Difference]: With dead ends: 6039 [2021-03-11 14:19:36,426 INFO L226 Difference]: Without dead ends: 6015 [2021-03-11 14:19:36,426 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 337.4ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:19:36,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6015 states. [2021-03-11 14:19:36,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6015 to 3125. [2021-03-11 14:19:36,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3125 states, 3124 states have (on average 4.983674775928297) internal successors, (15569), 3124 states have internal predecessors, (15569), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:36,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3125 states to 3125 states and 15569 transitions. [2021-03-11 14:19:36,561 INFO L78 Accepts]: Start accepts. Automaton has 3125 states and 15569 transitions. Word has length 31 [2021-03-11 14:19:36,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:19:36,561 INFO L480 AbstractCegarLoop]: Abstraction has 3125 states and 15569 transitions. [2021-03-11 14:19:36,561 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:36,561 INFO L276 IsEmpty]: Start isEmpty. Operand 3125 states and 15569 transitions. [2021-03-11 14:19:36,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:19:36,565 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:19:36,565 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:19:36,565 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable240 [2021-03-11 14:19:36,566 INFO L428 AbstractCegarLoop]: === Iteration 242 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:19:36,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:19:36,566 INFO L82 PathProgramCache]: Analyzing trace with hash -1238623581, now seen corresponding path program 233 times [2021-03-11 14:19:36,566 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:19:36,566 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [320700240] [2021-03-11 14:19:36,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:19:36,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:19:36,577 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:36,578 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:19:36,578 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:36,578 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:19:36,583 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:19:36,583 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:19:36,591 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:19:36,591 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:19:36,603 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:19:36,603 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:19:36,619 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:19:36,619 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:19:36,639 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:19:36,640 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:19:36,664 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:19:36,664 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:19:36,715 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:19:36,715 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:19:36,752 INFO L142 QuantifierPusher]: treesize reduction 72, result has 49.7 percent of original size [2021-03-11 14:19:36,752 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-03-11 14:19:36,796 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:19:36,797 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:19:36,836 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:19:36,836 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [320700240] [2021-03-11 14:19:36,836 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:19:36,836 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:19:36,836 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1601950532] [2021-03-11 14:19:36,836 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:19:36,836 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:19:36,836 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:19:36,836 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:19:36,836 INFO L87 Difference]: Start difference. First operand 3125 states and 15569 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:36,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:19:36,974 INFO L93 Difference]: Finished difference Result 6052 states and 26887 transitions. [2021-03-11 14:19:36,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:19:36,974 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:19:36,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:19:36,987 INFO L225 Difference]: With dead ends: 6052 [2021-03-11 14:19:36,987 INFO L226 Difference]: Without dead ends: 6030 [2021-03-11 14:19:36,987 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 280.3ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:19:37,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6030 states. [2021-03-11 14:19:37,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6030 to 3134. [2021-03-11 14:19:37,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3134 states, 3133 states have (on average 4.97446536865624) internal successors, (15585), 3133 states have internal predecessors, (15585), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:37,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3134 states to 3134 states and 15585 transitions. [2021-03-11 14:19:37,125 INFO L78 Accepts]: Start accepts. Automaton has 3134 states and 15585 transitions. Word has length 31 [2021-03-11 14:19:37,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:19:37,125 INFO L480 AbstractCegarLoop]: Abstraction has 3134 states and 15585 transitions. [2021-03-11 14:19:37,125 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:37,125 INFO L276 IsEmpty]: Start isEmpty. Operand 3134 states and 15585 transitions. [2021-03-11 14:19:37,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:19:37,130 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:19:37,130 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:19:37,130 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable241 [2021-03-11 14:19:37,130 INFO L428 AbstractCegarLoop]: === Iteration 243 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:19:37,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:19:37,130 INFO L82 PathProgramCache]: Analyzing trace with hash -1661109307, now seen corresponding path program 234 times [2021-03-11 14:19:37,130 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:19:37,130 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2091728368] [2021-03-11 14:19:37,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:19:37,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:19:37,159 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:37,160 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:19:37,160 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:37,160 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:19:37,165 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:19:37,166 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:19:37,174 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:19:37,174 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:19:37,187 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:19:37,188 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:19:37,210 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:19:37,211 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:19:37,231 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:19:37,231 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:19:37,255 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:19:37,256 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:19:37,307 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:19:37,308 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:19:37,345 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:19:37,346 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:19:37,389 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:19:37,389 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:19:37,429 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:19:37,429 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2091728368] [2021-03-11 14:19:37,429 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:19:37,429 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:19:37,429 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1440836914] [2021-03-11 14:19:37,429 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:19:37,429 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:19:37,429 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:19:37,429 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:19:37,429 INFO L87 Difference]: Start difference. First operand 3134 states and 15585 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:37,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:19:37,610 INFO L93 Difference]: Finished difference Result 6049 states and 26873 transitions. [2021-03-11 14:19:37,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:19:37,611 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:19:37,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:19:37,623 INFO L225 Difference]: With dead ends: 6049 [2021-03-11 14:19:37,623 INFO L226 Difference]: Without dead ends: 6015 [2021-03-11 14:19:37,624 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 326.2ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:19:37,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6015 states. [2021-03-11 14:19:37,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6015 to 3119. [2021-03-11 14:19:37,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3119 states, 3118 states have (on average 4.987812700449005) internal successors, (15552), 3118 states have internal predecessors, (15552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:37,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3119 states to 3119 states and 15552 transitions. [2021-03-11 14:19:37,758 INFO L78 Accepts]: Start accepts. Automaton has 3119 states and 15552 transitions. Word has length 31 [2021-03-11 14:19:37,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:19:37,758 INFO L480 AbstractCegarLoop]: Abstraction has 3119 states and 15552 transitions. [2021-03-11 14:19:37,758 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:37,758 INFO L276 IsEmpty]: Start isEmpty. Operand 3119 states and 15552 transitions. [2021-03-11 14:19:37,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:19:37,763 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:19:37,763 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:19:37,763 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable242 [2021-03-11 14:19:37,763 INFO L428 AbstractCegarLoop]: === Iteration 244 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:19:37,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:19:37,763 INFO L82 PathProgramCache]: Analyzing trace with hash 71216785, now seen corresponding path program 235 times [2021-03-11 14:19:37,763 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:19:37,763 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [606020942] [2021-03-11 14:19:37,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:19:37,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:19:37,777 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:37,778 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:19:37,778 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:37,778 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:19:37,783 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:19:37,783 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:19:37,791 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:19:37,791 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:19:37,803 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:19:37,804 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:19:37,820 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:19:37,820 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:19:37,841 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:19:37,841 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:19:37,866 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:19:37,867 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:19:37,899 INFO L142 QuantifierPusher]: treesize reduction 54, result has 55.4 percent of original size [2021-03-11 14:19:37,899 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-03-11 14:19:37,962 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:19:37,963 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:19:38,006 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:19:38,007 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:19:38,046 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:19:38,047 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [606020942] [2021-03-11 14:19:38,047 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:19:38,047 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:19:38,047 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [283652066] [2021-03-11 14:19:38,047 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:19:38,047 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:19:38,047 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:19:38,047 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:19:38,047 INFO L87 Difference]: Start difference. First operand 3119 states and 15552 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:38,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:19:38,220 INFO L93 Difference]: Finished difference Result 6054 states and 26904 transitions. [2021-03-11 14:19:38,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:19:38,220 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:19:38,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:19:38,233 INFO L225 Difference]: With dead ends: 6054 [2021-03-11 14:19:38,233 INFO L226 Difference]: Without dead ends: 6036 [2021-03-11 14:19:38,233 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 320.4ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:19:38,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6036 states. [2021-03-11 14:19:38,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6036 to 3135. [2021-03-11 14:19:38,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3135 states, 3134 states have (on average 4.976707083599234) internal successors, (15597), 3134 states have internal predecessors, (15597), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:38,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3135 states to 3135 states and 15597 transitions. [2021-03-11 14:19:38,369 INFO L78 Accepts]: Start accepts. Automaton has 3135 states and 15597 transitions. Word has length 31 [2021-03-11 14:19:38,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:19:38,369 INFO L480 AbstractCegarLoop]: Abstraction has 3135 states and 15597 transitions. [2021-03-11 14:19:38,369 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:38,369 INFO L276 IsEmpty]: Start isEmpty. Operand 3135 states and 15597 transitions. [2021-03-11 14:19:38,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:19:38,374 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:19:38,374 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:19:38,374 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable243 [2021-03-11 14:19:38,374 INFO L428 AbstractCegarLoop]: === Iteration 245 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:19:38,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:19:38,374 INFO L82 PathProgramCache]: Analyzing trace with hash -1196240393, now seen corresponding path program 236 times [2021-03-11 14:19:38,374 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:19:38,374 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [994408984] [2021-03-11 14:19:38,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:19:38,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:19:38,386 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:38,387 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:19:38,387 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:38,387 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:19:38,392 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:19:38,392 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:19:38,400 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:19:38,401 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:19:38,412 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:19:38,413 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:19:38,429 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:19:38,430 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:19:38,450 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:19:38,450 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:19:38,475 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:19:38,476 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:19:38,508 INFO L142 QuantifierPusher]: treesize reduction 54, result has 55.4 percent of original size [2021-03-11 14:19:38,508 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-03-11 14:19:38,571 INFO L142 QuantifierPusher]: treesize reduction 72, result has 49.7 percent of original size [2021-03-11 14:19:38,572 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-03-11 14:19:38,617 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:19:38,617 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:19:38,657 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:19:38,657 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [994408984] [2021-03-11 14:19:38,657 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:19:38,657 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:19:38,657 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [134579184] [2021-03-11 14:19:38,657 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:19:38,657 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:19:38,658 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:19:38,658 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:19:38,658 INFO L87 Difference]: Start difference. First operand 3135 states and 15597 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:38,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:19:38,801 INFO L93 Difference]: Finished difference Result 6058 states and 26904 transitions. [2021-03-11 14:19:38,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:19:38,801 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:19:38,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:19:38,814 INFO L225 Difference]: With dead ends: 6058 [2021-03-11 14:19:38,814 INFO L226 Difference]: Without dead ends: 6028 [2021-03-11 14:19:38,814 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 293.6ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:19:38,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6028 states. [2021-03-11 14:19:38,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6028 to 3127. [2021-03-11 14:19:38,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3127 states, 3126 states have (on average 4.982085732565579) internal successors, (15574), 3126 states have internal predecessors, (15574), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:38,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3127 states to 3127 states and 15574 transitions. [2021-03-11 14:19:38,949 INFO L78 Accepts]: Start accepts. Automaton has 3127 states and 15574 transitions. Word has length 31 [2021-03-11 14:19:38,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:19:38,949 INFO L480 AbstractCegarLoop]: Abstraction has 3127 states and 15574 transitions. [2021-03-11 14:19:38,949 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:38,950 INFO L276 IsEmpty]: Start isEmpty. Operand 3127 states and 15574 transitions. [2021-03-11 14:19:38,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:19:38,954 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:19:38,954 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:19:38,954 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable244 [2021-03-11 14:19:38,954 INFO L428 AbstractCegarLoop]: === Iteration 246 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:19:38,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:19:38,955 INFO L82 PathProgramCache]: Analyzing trace with hash -140938833, now seen corresponding path program 237 times [2021-03-11 14:19:38,955 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:19:38,955 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [180125394] [2021-03-11 14:19:38,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:19:38,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:19:38,966 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:38,967 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:19:38,967 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:38,967 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:19:38,972 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:19:38,972 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:19:38,980 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:19:38,980 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:19:38,992 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:19:38,992 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:19:39,008 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:19:39,009 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:19:39,028 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:19:39,029 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:19:39,053 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:19:39,054 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:19:39,085 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:19:39,086 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:19:39,123 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:19:39,123 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:19:39,166 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:19:39,166 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:19:39,206 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:19:39,206 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [180125394] [2021-03-11 14:19:39,206 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:19:39,206 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:19:39,206 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [398822010] [2021-03-11 14:19:39,206 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:19:39,206 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:19:39,206 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:19:39,207 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:19:39,207 INFO L87 Difference]: Start difference. First operand 3127 states and 15574 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:39,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:19:39,377 INFO L93 Difference]: Finished difference Result 6050 states and 26889 transitions. [2021-03-11 14:19:39,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:19:39,378 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:19:39,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:19:39,391 INFO L225 Difference]: With dead ends: 6050 [2021-03-11 14:19:39,391 INFO L226 Difference]: Without dead ends: 6032 [2021-03-11 14:19:39,391 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 290.1ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:19:39,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6032 states. [2021-03-11 14:19:39,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6032 to 3134. [2021-03-11 14:19:39,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3134 states, 3133 states have (on average 4.975103734439834) internal successors, (15587), 3133 states have internal predecessors, (15587), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:39,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3134 states to 3134 states and 15587 transitions. [2021-03-11 14:19:39,528 INFO L78 Accepts]: Start accepts. Automaton has 3134 states and 15587 transitions. Word has length 31 [2021-03-11 14:19:39,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:19:39,528 INFO L480 AbstractCegarLoop]: Abstraction has 3134 states and 15587 transitions. [2021-03-11 14:19:39,529 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:39,529 INFO L276 IsEmpty]: Start isEmpty. Operand 3134 states and 15587 transitions. [2021-03-11 14:19:39,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:19:39,533 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:19:39,533 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:19:39,533 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable245 [2021-03-11 14:19:39,533 INFO L428 AbstractCegarLoop]: === Iteration 247 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:19:39,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:19:39,534 INFO L82 PathProgramCache]: Analyzing trace with hash -1830881737, now seen corresponding path program 238 times [2021-03-11 14:19:39,534 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:19:39,534 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1822403704] [2021-03-11 14:19:39,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:19:39,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:19:39,545 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:39,546 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:19:39,546 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:39,546 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:19:39,551 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:19:39,551 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:19:39,559 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:19:39,559 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:19:39,571 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:19:39,572 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:19:39,588 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:19:39,588 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:19:39,609 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:19:39,609 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:19:39,634 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:19:39,634 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:19:39,665 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:19:39,666 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:19:39,704 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:19:39,704 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:19:39,748 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:19:39,748 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:19:39,788 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:19:39,788 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1822403704] [2021-03-11 14:19:39,788 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:19:39,788 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:19:39,788 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938857406] [2021-03-11 14:19:39,788 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:19:39,788 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:19:39,788 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:19:39,788 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:19:39,789 INFO L87 Difference]: Start difference. First operand 3134 states and 15587 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:39,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:19:39,972 INFO L93 Difference]: Finished difference Result 6051 states and 26884 transitions. [2021-03-11 14:19:39,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:19:39,973 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:19:39,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:19:39,987 INFO L225 Difference]: With dead ends: 6051 [2021-03-11 14:19:39,987 INFO L226 Difference]: Without dead ends: 6025 [2021-03-11 14:19:39,987 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 300.8ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:19:40,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6025 states. [2021-03-11 14:19:40,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6025 to 3127. [2021-03-11 14:19:40,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3127 states, 3126 states have (on average 4.979846449136277) internal successors, (15567), 3126 states have internal predecessors, (15567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:40,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3127 states to 3127 states and 15567 transitions. [2021-03-11 14:19:40,133 INFO L78 Accepts]: Start accepts. Automaton has 3127 states and 15567 transitions. Word has length 31 [2021-03-11 14:19:40,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:19:40,133 INFO L480 AbstractCegarLoop]: Abstraction has 3127 states and 15567 transitions. [2021-03-11 14:19:40,133 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:40,133 INFO L276 IsEmpty]: Start isEmpty. Operand 3127 states and 15567 transitions. [2021-03-11 14:19:40,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:19:40,138 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:19:40,138 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:19:40,138 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable246 [2021-03-11 14:19:40,138 INFO L428 AbstractCegarLoop]: === Iteration 248 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:19:40,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:19:40,139 INFO L82 PathProgramCache]: Analyzing trace with hash -2044862865, now seen corresponding path program 239 times [2021-03-11 14:19:40,139 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:19:40,139 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1190491282] [2021-03-11 14:19:40,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:19:40,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:19:40,153 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:40,153 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:19:40,153 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:40,154 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:19:40,158 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:19:40,159 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:19:40,167 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:19:40,167 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:19:40,180 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:19:40,180 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:19:40,197 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:19:40,198 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:19:40,219 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:19:40,220 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:19:40,246 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:19:40,246 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:19:40,279 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:19:40,279 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:19:40,319 INFO L142 QuantifierPusher]: treesize reduction 72, result has 49.7 percent of original size [2021-03-11 14:19:40,319 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-03-11 14:19:40,365 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:19:40,366 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:19:40,407 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:19:40,407 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1190491282] [2021-03-11 14:19:40,407 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:19:40,407 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:19:40,407 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1000051059] [2021-03-11 14:19:40,407 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:19:40,407 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:19:40,407 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:19:40,407 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:19:40,407 INFO L87 Difference]: Start difference. First operand 3127 states and 15567 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:40,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:19:40,559 INFO L93 Difference]: Finished difference Result 6060 states and 26901 transitions. [2021-03-11 14:19:40,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:19:40,560 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:19:40,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:19:40,573 INFO L225 Difference]: With dead ends: 6060 [2021-03-11 14:19:40,574 INFO L226 Difference]: Without dead ends: 6038 [2021-03-11 14:19:40,574 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 275.9ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:19:40,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6038 states. [2021-03-11 14:19:40,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6038 to 3136. [2021-03-11 14:19:40,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3136 states, 3135 states have (on average 4.970653907496013) internal successors, (15583), 3135 states have internal predecessors, (15583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:40,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3136 states to 3136 states and 15583 transitions. [2021-03-11 14:19:40,718 INFO L78 Accepts]: Start accepts. Automaton has 3136 states and 15583 transitions. Word has length 31 [2021-03-11 14:19:40,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:19:40,718 INFO L480 AbstractCegarLoop]: Abstraction has 3136 states and 15583 transitions. [2021-03-11 14:19:40,718 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:40,718 INFO L276 IsEmpty]: Start isEmpty. Operand 3136 states and 15583 transitions. [2021-03-11 14:19:40,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:19:40,723 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:19:40,723 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:19:40,723 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable247 [2021-03-11 14:19:40,723 INFO L428 AbstractCegarLoop]: === Iteration 249 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:19:40,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:19:40,724 INFO L82 PathProgramCache]: Analyzing trace with hash 1827618705, now seen corresponding path program 240 times [2021-03-11 14:19:40,724 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:19:40,724 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1997745880] [2021-03-11 14:19:40,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:19:40,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:19:40,735 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:40,736 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:19:40,736 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:40,736 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:19:40,741 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:19:40,741 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:19:40,750 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:19:40,750 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:19:40,763 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:19:40,763 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:19:40,781 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:19:40,781 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:19:40,803 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:19:40,803 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:19:40,830 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:19:40,831 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:19:40,864 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:19:40,864 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:19:40,905 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:19:40,905 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:19:40,951 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:19:40,951 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:19:40,993 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:19:40,993 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1997745880] [2021-03-11 14:19:40,993 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:19:40,993 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:19:40,994 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1155852247] [2021-03-11 14:19:40,994 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:19:40,994 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:19:40,994 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:19:40,994 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:19:40,994 INFO L87 Difference]: Start difference. First operand 3136 states and 15583 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:41,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:19:41,207 INFO L93 Difference]: Finished difference Result 6057 states and 26887 transitions. [2021-03-11 14:19:41,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:19:41,207 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:19:41,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:19:41,221 INFO L225 Difference]: With dead ends: 6057 [2021-03-11 14:19:41,221 INFO L226 Difference]: Without dead ends: 6006 [2021-03-11 14:19:41,221 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 315.3ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:19:41,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6006 states. [2021-03-11 14:19:41,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6006 to 3104. [2021-03-11 14:19:41,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3104 states, 3103 states have (on average 5.000966806316468) internal successors, (15518), 3103 states have internal predecessors, (15518), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:41,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3104 states to 3104 states and 15518 transitions. [2021-03-11 14:19:41,361 INFO L78 Accepts]: Start accepts. Automaton has 3104 states and 15518 transitions. Word has length 31 [2021-03-11 14:19:41,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:19:41,362 INFO L480 AbstractCegarLoop]: Abstraction has 3104 states and 15518 transitions. [2021-03-11 14:19:41,362 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:41,362 INFO L276 IsEmpty]: Start isEmpty. Operand 3104 states and 15518 transitions. [2021-03-11 14:19:41,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:19:41,366 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:19:41,366 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:19:41,367 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable248 [2021-03-11 14:19:41,367 INFO L428 AbstractCegarLoop]: === Iteration 250 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:19:41,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:19:41,367 INFO L82 PathProgramCache]: Analyzing trace with hash 1614524515, now seen corresponding path program 241 times [2021-03-11 14:19:41,367 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:19:41,367 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1566251861] [2021-03-11 14:19:41,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:19:41,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:19:41,378 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:41,379 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:19:41,379 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:41,379 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:19:41,384 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:19:41,384 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:19:41,392 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:19:41,392 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:19:41,404 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:19:41,405 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:19:41,421 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:19:41,421 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:19:41,441 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:19:41,442 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:19:41,466 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:19:41,467 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:19:41,517 INFO L142 QuantifierPusher]: treesize reduction 45, result has 59.1 percent of original size [2021-03-11 14:19:41,517 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:19:41,574 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:19:41,574 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:19:41,617 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:19:41,618 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:19:41,657 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:19:41,657 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1566251861] [2021-03-11 14:19:41,658 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:19:41,658 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:19:41,658 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [773122961] [2021-03-11 14:19:41,658 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:19:41,658 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:19:41,658 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:19:41,658 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:19:41,658 INFO L87 Difference]: Start difference. First operand 3104 states and 15518 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:41,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:19:41,835 INFO L93 Difference]: Finished difference Result 5995 states and 26788 transitions. [2021-03-11 14:19:41,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:19:41,836 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:19:41,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:19:41,848 INFO L225 Difference]: With dead ends: 5995 [2021-03-11 14:19:41,849 INFO L226 Difference]: Without dead ends: 5979 [2021-03-11 14:19:41,849 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 331.2ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:19:41,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5979 states. [2021-03-11 14:19:41,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5979 to 3126. [2021-03-11 14:19:41,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3126 states, 3125 states have (on average 4.99456) internal successors, (15608), 3125 states have internal predecessors, (15608), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:41,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3126 states to 3126 states and 15608 transitions. [2021-03-11 14:19:41,984 INFO L78 Accepts]: Start accepts. Automaton has 3126 states and 15608 transitions. Word has length 31 [2021-03-11 14:19:41,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:19:41,985 INFO L480 AbstractCegarLoop]: Abstraction has 3126 states and 15608 transitions. [2021-03-11 14:19:41,985 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:41,985 INFO L276 IsEmpty]: Start isEmpty. Operand 3126 states and 15608 transitions. [2021-03-11 14:19:41,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:19:41,989 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:19:41,989 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:19:41,989 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable249 [2021-03-11 14:19:41,990 INFO L428 AbstractCegarLoop]: === Iteration 251 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:19:41,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:19:41,990 INFO L82 PathProgramCache]: Analyzing trace with hash 769553063, now seen corresponding path program 242 times [2021-03-11 14:19:41,990 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:19:41,990 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1661266495] [2021-03-11 14:19:41,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:19:41,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:19:42,001 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:42,002 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:19:42,002 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:42,002 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:19:42,007 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:19:42,007 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:19:42,015 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:19:42,015 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:19:42,027 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:19:42,028 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:19:42,044 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:19:42,045 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:19:42,065 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:19:42,066 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:19:42,091 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:19:42,092 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:19:42,141 INFO L142 QuantifierPusher]: treesize reduction 45, result has 59.1 percent of original size [2021-03-11 14:19:42,142 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:19:42,199 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:19:42,200 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:19:42,244 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:19:42,245 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:19:42,285 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:19:42,285 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1661266495] [2021-03-11 14:19:42,286 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:19:42,286 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:19:42,286 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1883458011] [2021-03-11 14:19:42,286 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:19:42,286 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:19:42,286 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:19:42,286 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:19:42,286 INFO L87 Difference]: Start difference. First operand 3126 states and 15608 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:42,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:19:42,495 INFO L93 Difference]: Finished difference Result 5999 states and 26791 transitions. [2021-03-11 14:19:42,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:19:42,496 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:19:42,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:19:42,509 INFO L225 Difference]: With dead ends: 5999 [2021-03-11 14:19:42,509 INFO L226 Difference]: Without dead ends: 5974 [2021-03-11 14:19:42,509 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 341.1ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:19:42,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5974 states. [2021-03-11 14:19:42,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5974 to 3121. [2021-03-11 14:19:42,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3121 states, 3120 states have (on average 4.998076923076923) internal successors, (15594), 3120 states have internal predecessors, (15594), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:42,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3121 states to 3121 states and 15594 transitions. [2021-03-11 14:19:42,650 INFO L78 Accepts]: Start accepts. Automaton has 3121 states and 15594 transitions. Word has length 31 [2021-03-11 14:19:42,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:19:42,650 INFO L480 AbstractCegarLoop]: Abstraction has 3121 states and 15594 transitions. [2021-03-11 14:19:42,650 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:42,650 INFO L276 IsEmpty]: Start isEmpty. Operand 3121 states and 15594 transitions. [2021-03-11 14:19:42,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:19:42,655 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:19:42,655 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:19:42,655 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable250 [2021-03-11 14:19:42,655 INFO L428 AbstractCegarLoop]: === Iteration 252 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:19:42,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:19:42,655 INFO L82 PathProgramCache]: Analyzing trace with hash 1190213279, now seen corresponding path program 243 times [2021-03-11 14:19:42,655 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:19:42,655 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [459008554] [2021-03-11 14:19:42,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:19:42,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:19:42,667 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:42,667 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:19:42,668 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:42,668 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:19:42,672 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:19:42,673 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:19:42,681 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:19:42,681 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:19:42,694 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:19:42,694 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:19:42,711 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:19:42,712 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:19:42,732 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:19:42,733 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:19:42,759 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:19:42,760 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:19:42,811 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:19:42,811 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:19:42,851 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:19:42,851 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:19:42,898 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:19:42,898 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:19:42,940 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:19:42,940 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [459008554] [2021-03-11 14:19:42,940 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:19:42,941 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:19:42,941 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [612666832] [2021-03-11 14:19:42,941 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:19:42,941 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:19:42,941 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:19:42,941 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:19:42,941 INFO L87 Difference]: Start difference. First operand 3121 states and 15594 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:43,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:19:43,122 INFO L93 Difference]: Finished difference Result 5992 states and 26777 transitions. [2021-03-11 14:19:43,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:19:43,123 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:19:43,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:19:43,136 INFO L225 Difference]: With dead ends: 5992 [2021-03-11 14:19:43,136 INFO L226 Difference]: Without dead ends: 5976 [2021-03-11 14:19:43,136 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 325.8ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:19:43,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5976 states. [2021-03-11 14:19:43,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5976 to 3126. [2021-03-11 14:19:43,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3126 states, 3125 states have (on average 4.99296) internal successors, (15603), 3125 states have internal predecessors, (15603), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:43,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3126 states to 3126 states and 15603 transitions. [2021-03-11 14:19:43,273 INFO L78 Accepts]: Start accepts. Automaton has 3126 states and 15603 transitions. Word has length 31 [2021-03-11 14:19:43,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:19:43,273 INFO L480 AbstractCegarLoop]: Abstraction has 3126 states and 15603 transitions. [2021-03-11 14:19:43,273 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:43,273 INFO L276 IsEmpty]: Start isEmpty. Operand 3126 states and 15603 transitions. [2021-03-11 14:19:43,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:19:43,278 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:19:43,278 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:19:43,278 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable251 [2021-03-11 14:19:43,278 INFO L428 AbstractCegarLoop]: === Iteration 253 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:19:43,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:19:43,278 INFO L82 PathProgramCache]: Analyzing trace with hash -499729625, now seen corresponding path program 244 times [2021-03-11 14:19:43,279 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:19:43,279 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1719229203] [2021-03-11 14:19:43,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:19:43,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:19:43,291 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:43,292 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:19:43,292 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:43,292 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:19:43,297 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:19:43,297 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:19:43,305 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:19:43,305 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:19:43,319 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:19:43,319 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:19:43,336 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:19:43,336 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:19:43,357 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:19:43,357 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:19:43,386 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:19:43,387 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:19:43,439 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:19:43,439 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:19:43,477 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:19:43,478 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:19:43,522 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:19:43,523 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:19:43,563 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:19:43,563 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1719229203] [2021-03-11 14:19:43,563 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:19:43,564 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:19:43,564 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2062388518] [2021-03-11 14:19:43,564 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:19:43,564 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:19:43,564 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:19:43,564 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:19:43,564 INFO L87 Difference]: Start difference. First operand 3126 states and 15603 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:43,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:19:43,764 INFO L93 Difference]: Finished difference Result 5993 states and 26774 transitions. [2021-03-11 14:19:43,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:19:43,765 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:19:43,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:19:43,778 INFO L225 Difference]: With dead ends: 5993 [2021-03-11 14:19:43,778 INFO L226 Difference]: Without dead ends: 5971 [2021-03-11 14:19:43,778 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 318.9ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:19:43,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5971 states. [2021-03-11 14:19:43,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5971 to 3121. [2021-03-11 14:19:43,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3121 states, 3120 states have (on average 4.996474358974359) internal successors, (15589), 3120 states have internal predecessors, (15589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:43,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3121 states to 3121 states and 15589 transitions. [2021-03-11 14:19:43,914 INFO L78 Accepts]: Start accepts. Automaton has 3121 states and 15589 transitions. Word has length 31 [2021-03-11 14:19:43,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:19:43,914 INFO L480 AbstractCegarLoop]: Abstraction has 3121 states and 15589 transitions. [2021-03-11 14:19:43,914 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:43,914 INFO L276 IsEmpty]: Start isEmpty. Operand 3121 states and 15589 transitions. [2021-03-11 14:19:43,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:19:43,918 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:19:43,919 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:19:43,919 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable252 [2021-03-11 14:19:43,919 INFO L428 AbstractCegarLoop]: === Iteration 254 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:19:43,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:19:43,919 INFO L82 PathProgramCache]: Analyzing trace with hash -79069409, now seen corresponding path program 245 times [2021-03-11 14:19:43,919 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:19:43,919 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1516295243] [2021-03-11 14:19:43,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:19:43,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:19:43,931 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:43,932 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:19:43,932 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:43,932 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:19:43,937 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:19:43,937 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:19:43,945 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:19:43,945 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:19:43,957 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:19:43,958 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:19:43,984 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:19:43,985 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:19:44,006 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:19:44,007 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:19:44,032 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:19:44,032 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:19:44,083 INFO L142 QuantifierPusher]: treesize reduction 45, result has 59.1 percent of original size [2021-03-11 14:19:44,084 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:19:44,145 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:19:44,145 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:19:44,190 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:19:44,190 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:19:44,231 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:19:44,231 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1516295243] [2021-03-11 14:19:44,232 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:19:44,232 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:19:44,232 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [826336867] [2021-03-11 14:19:44,232 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:19:44,232 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:19:44,232 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:19:44,232 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:19:44,232 INFO L87 Difference]: Start difference. First operand 3121 states and 15589 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:44,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:19:44,423 INFO L93 Difference]: Finished difference Result 6001 states and 26791 transitions. [2021-03-11 14:19:44,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:19:44,424 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:19:44,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:19:44,437 INFO L225 Difference]: With dead ends: 6001 [2021-03-11 14:19:44,437 INFO L226 Difference]: Without dead ends: 5981 [2021-03-11 14:19:44,437 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 347.8ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:19:44,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5981 states. [2021-03-11 14:19:44,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5981 to 3127. [2021-03-11 14:19:44,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3127 states, 3126 states have (on average 4.990403071017274) internal successors, (15600), 3126 states have internal predecessors, (15600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:44,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3127 states to 3127 states and 15600 transitions. [2021-03-11 14:19:44,576 INFO L78 Accepts]: Start accepts. Automaton has 3127 states and 15600 transitions. Word has length 31 [2021-03-11 14:19:44,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:19:44,576 INFO L480 AbstractCegarLoop]: Abstraction has 3127 states and 15600 transitions. [2021-03-11 14:19:44,576 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:44,576 INFO L276 IsEmpty]: Start isEmpty. Operand 3127 states and 15600 transitions. [2021-03-11 14:19:44,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:19:44,581 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:19:44,582 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:19:44,582 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable253 [2021-03-11 14:19:44,582 INFO L428 AbstractCegarLoop]: === Iteration 255 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:19:44,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:19:44,582 INFO L82 PathProgramCache]: Analyzing trace with hash -924040861, now seen corresponding path program 246 times [2021-03-11 14:19:44,582 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:19:44,582 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1777222665] [2021-03-11 14:19:44,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:19:44,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:19:44,595 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:44,595 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:19:44,595 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:44,596 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:19:44,600 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:19:44,601 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:19:44,609 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:19:44,609 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:19:44,621 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:19:44,621 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:19:44,638 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:19:44,638 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:19:44,659 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:19:44,659 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:19:44,684 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:19:44,685 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:19:44,735 INFO L142 QuantifierPusher]: treesize reduction 45, result has 59.1 percent of original size [2021-03-11 14:19:44,736 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:19:44,797 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:19:44,797 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:19:44,841 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:19:44,842 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:19:44,881 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:19:44,882 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1777222665] [2021-03-11 14:19:44,882 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:19:44,882 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:19:44,882 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [878440134] [2021-03-11 14:19:44,882 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:19:44,882 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:19:44,882 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:19:44,882 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:19:44,882 INFO L87 Difference]: Start difference. First operand 3127 states and 15600 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:45,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:19:45,084 INFO L93 Difference]: Finished difference Result 5998 states and 26779 transitions. [2021-03-11 14:19:45,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:19:45,084 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:19:45,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:19:45,098 INFO L225 Difference]: With dead ends: 5998 [2021-03-11 14:19:45,099 INFO L226 Difference]: Without dead ends: 5970 [2021-03-11 14:19:45,099 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 338.0ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:19:45,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5970 states. [2021-03-11 14:19:45,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5970 to 3116. [2021-03-11 14:19:45,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3116 states, 3115 states have (on average 5.0) internal successors, (15575), 3115 states have internal predecessors, (15575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:45,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3116 states to 3116 states and 15575 transitions. [2021-03-11 14:19:45,236 INFO L78 Accepts]: Start accepts. Automaton has 3116 states and 15575 transitions. Word has length 31 [2021-03-11 14:19:45,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:19:45,237 INFO L480 AbstractCegarLoop]: Abstraction has 3116 states and 15575 transitions. [2021-03-11 14:19:45,237 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:45,237 INFO L276 IsEmpty]: Start isEmpty. Operand 3116 states and 15575 transitions. [2021-03-11 14:19:45,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:19:45,242 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:19:45,242 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:19:45,242 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable254 [2021-03-11 14:19:45,243 INFO L428 AbstractCegarLoop]: === Iteration 256 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:19:45,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:19:45,243 INFO L82 PathProgramCache]: Analyzing trace with hash 1345778087, now seen corresponding path program 247 times [2021-03-11 14:19:45,243 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:19:45,243 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [363723254] [2021-03-11 14:19:45,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:19:45,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:19:45,259 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:45,259 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:19:45,260 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:45,260 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:19:45,267 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:19:45,268 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:19:45,277 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:19:45,278 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:19:45,290 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:19:45,291 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:19:45,308 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:19:45,308 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:19:45,329 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:19:45,330 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:19:45,355 INFO L142 QuantifierPusher]: treesize reduction 27, result has 64.5 percent of original size [2021-03-11 14:19:45,355 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 14:19:45,386 INFO L142 QuantifierPusher]: treesize reduction 45, result has 59.1 percent of original size [2021-03-11 14:19:45,386 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:19:45,446 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:19:45,446 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:19:45,492 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:19:45,493 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:19:45,535 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:19:45,535 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [363723254] [2021-03-11 14:19:45,535 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:19:45,535 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:19:45,536 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [677529656] [2021-03-11 14:19:45,536 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:19:45,536 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:19:45,536 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:19:45,536 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:19:45,536 INFO L87 Difference]: Start difference. First operand 3116 states and 15575 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:45,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:19:45,729 INFO L93 Difference]: Finished difference Result 5997 states and 26788 transitions. [2021-03-11 14:19:45,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:19:45,730 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:19:45,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:19:45,744 INFO L225 Difference]: With dead ends: 5997 [2021-03-11 14:19:45,744 INFO L226 Difference]: Without dead ends: 5981 [2021-03-11 14:19:45,745 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 327.8ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:19:45,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5981 states. [2021-03-11 14:19:45,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5981 to 3126. [2021-03-11 14:19:45,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3126 states, 3125 states have (on average 4.99296) internal successors, (15603), 3125 states have internal predecessors, (15603), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:45,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3126 states to 3126 states and 15603 transitions. [2021-03-11 14:19:45,885 INFO L78 Accepts]: Start accepts. Automaton has 3126 states and 15603 transitions. Word has length 31 [2021-03-11 14:19:45,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:19:45,885 INFO L480 AbstractCegarLoop]: Abstraction has 3126 states and 15603 transitions. [2021-03-11 14:19:45,885 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:45,885 INFO L276 IsEmpty]: Start isEmpty. Operand 3126 states and 15603 transitions. [2021-03-11 14:19:45,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:19:45,890 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:19:45,890 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:19:45,890 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable255 [2021-03-11 14:19:45,890 INFO L428 AbstractCegarLoop]: === Iteration 257 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:19:45,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:19:45,891 INFO L82 PathProgramCache]: Analyzing trace with hash 500806635, now seen corresponding path program 248 times [2021-03-11 14:19:45,891 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:19:45,891 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [19657098] [2021-03-11 14:19:45,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:19:45,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:19:45,903 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:45,903 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:19:45,904 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:45,904 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:19:45,908 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:19:45,909 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:19:45,917 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:19:45,917 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:19:45,929 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:19:45,930 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:19:45,947 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:19:45,947 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:19:45,968 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:19:45,968 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:19:45,994 INFO L142 QuantifierPusher]: treesize reduction 27, result has 64.5 percent of original size [2021-03-11 14:19:45,994 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 14:19:46,029 INFO L142 QuantifierPusher]: treesize reduction 45, result has 59.1 percent of original size [2021-03-11 14:19:46,030 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:19:46,088 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:19:46,089 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:19:46,134 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:19:46,134 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:19:46,175 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:19:46,175 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [19657098] [2021-03-11 14:19:46,175 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:19:46,175 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:19:46,176 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [503913257] [2021-03-11 14:19:46,176 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:19:46,176 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:19:46,176 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:19:46,176 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:19:46,176 INFO L87 Difference]: Start difference. First operand 3126 states and 15603 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:46,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:19:46,431 INFO L93 Difference]: Finished difference Result 6001 states and 26791 transitions. [2021-03-11 14:19:46,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:19:46,432 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:19:46,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:19:46,478 INFO L225 Difference]: With dead ends: 6001 [2021-03-11 14:19:46,478 INFO L226 Difference]: Without dead ends: 5976 [2021-03-11 14:19:46,478 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 331.1ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:19:46,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5976 states. [2021-03-11 14:19:46,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5976 to 3121. [2021-03-11 14:19:46,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3121 states, 3120 states have (on average 4.996474358974359) internal successors, (15589), 3120 states have internal predecessors, (15589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:46,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3121 states to 3121 states and 15589 transitions. [2021-03-11 14:19:46,613 INFO L78 Accepts]: Start accepts. Automaton has 3121 states and 15589 transitions. Word has length 31 [2021-03-11 14:19:46,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:19:46,613 INFO L480 AbstractCegarLoop]: Abstraction has 3121 states and 15589 transitions. [2021-03-11 14:19:46,613 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:46,613 INFO L276 IsEmpty]: Start isEmpty. Operand 3121 states and 15589 transitions. [2021-03-11 14:19:46,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:19:46,618 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:19:46,618 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:19:46,618 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable256 [2021-03-11 14:19:46,619 INFO L428 AbstractCegarLoop]: === Iteration 258 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:19:46,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:19:46,619 INFO L82 PathProgramCache]: Analyzing trace with hash 497155615, now seen corresponding path program 249 times [2021-03-11 14:19:46,619 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:19:46,619 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [659835318] [2021-03-11 14:19:46,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:19:46,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:19:46,631 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:46,631 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:19:46,632 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:46,632 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:19:46,636 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:19:46,637 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:19:46,644 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:19:46,645 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:19:46,657 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:19:46,657 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:19:46,673 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:19:46,673 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:19:46,693 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:19:46,694 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:19:46,718 INFO L142 QuantifierPusher]: treesize reduction 27, result has 64.5 percent of original size [2021-03-11 14:19:46,718 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 14:19:46,748 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:19:46,748 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:19:46,784 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:19:46,785 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:19:46,828 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:19:46,828 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:19:46,867 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:19:46,867 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [659835318] [2021-03-11 14:19:46,868 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:19:46,868 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:19:46,868 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1187224574] [2021-03-11 14:19:46,868 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:19:46,868 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:19:46,868 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:19:46,868 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:19:46,868 INFO L87 Difference]: Start difference. First operand 3121 states and 15589 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:47,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:19:47,132 INFO L93 Difference]: Finished difference Result 5995 states and 26779 transitions. [2021-03-11 14:19:47,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:19:47,133 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:19:47,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:19:47,146 INFO L225 Difference]: With dead ends: 5995 [2021-03-11 14:19:47,147 INFO L226 Difference]: Without dead ends: 5979 [2021-03-11 14:19:47,147 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 291.1ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:19:47,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5979 states. [2021-03-11 14:19:47,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5979 to 3126. [2021-03-11 14:19:47,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3126 states, 3125 states have (on average 4.99136) internal successors, (15598), 3125 states have internal predecessors, (15598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:47,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3126 states to 3126 states and 15598 transitions. [2021-03-11 14:19:47,284 INFO L78 Accepts]: Start accepts. Automaton has 3126 states and 15598 transitions. Word has length 31 [2021-03-11 14:19:47,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:19:47,284 INFO L480 AbstractCegarLoop]: Abstraction has 3126 states and 15598 transitions. [2021-03-11 14:19:47,284 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:47,284 INFO L276 IsEmpty]: Start isEmpty. Operand 3126 states and 15598 transitions. [2021-03-11 14:19:47,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:19:47,289 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:19:47,289 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:19:47,289 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable257 [2021-03-11 14:19:47,289 INFO L428 AbstractCegarLoop]: === Iteration 259 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:19:47,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:19:47,289 INFO L82 PathProgramCache]: Analyzing trace with hash -2037758741, now seen corresponding path program 250 times [2021-03-11 14:19:47,289 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:19:47,289 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [686101527] [2021-03-11 14:19:47,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:19:47,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:19:47,301 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:47,301 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:19:47,302 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:47,302 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:19:47,306 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:19:47,307 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:19:47,315 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:19:47,315 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:19:47,327 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:19:47,327 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:19:47,343 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:19:47,343 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:19:47,363 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:19:47,364 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:19:47,388 INFO L142 QuantifierPusher]: treesize reduction 27, result has 64.5 percent of original size [2021-03-11 14:19:47,389 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 14:19:47,419 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:19:47,419 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:19:47,455 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:19:47,456 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:19:47,499 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:19:47,500 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:19:47,540 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:19:47,540 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [686101527] [2021-03-11 14:19:47,540 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:19:47,540 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:19:47,540 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [89612904] [2021-03-11 14:19:47,540 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:19:47,540 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:19:47,540 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:19:47,541 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:19:47,541 INFO L87 Difference]: Start difference. First operand 3126 states and 15598 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:47,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:19:47,722 INFO L93 Difference]: Finished difference Result 5997 states and 26778 transitions. [2021-03-11 14:19:47,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:19:47,723 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:19:47,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:19:47,736 INFO L225 Difference]: With dead ends: 5997 [2021-03-11 14:19:47,736 INFO L226 Difference]: Without dead ends: 5974 [2021-03-11 14:19:47,736 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 290.6ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:19:47,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5974 states. [2021-03-11 14:19:47,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5974 to 3121. [2021-03-11 14:19:47,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3121 states, 3120 states have (on average 4.994871794871795) internal successors, (15584), 3120 states have internal predecessors, (15584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:47,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3121 states to 3121 states and 15584 transitions. [2021-03-11 14:19:47,875 INFO L78 Accepts]: Start accepts. Automaton has 3121 states and 15584 transitions. Word has length 31 [2021-03-11 14:19:47,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:19:47,875 INFO L480 AbstractCegarLoop]: Abstraction has 3121 states and 15584 transitions. [2021-03-11 14:19:47,875 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:47,875 INFO L276 IsEmpty]: Start isEmpty. Operand 3121 states and 15584 transitions. [2021-03-11 14:19:47,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:19:47,880 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:19:47,880 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:19:47,880 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable258 [2021-03-11 14:19:47,880 INFO L428 AbstractCegarLoop]: === Iteration 260 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:19:47,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:19:47,880 INFO L82 PathProgramCache]: Analyzing trace with hash -772127073, now seen corresponding path program 251 times [2021-03-11 14:19:47,880 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:19:47,880 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1919667648] [2021-03-11 14:19:47,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:19:47,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:19:47,892 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:47,892 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:19:47,892 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:47,893 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:19:47,897 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:19:47,897 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:19:47,905 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:19:47,906 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:19:47,917 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:19:47,918 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:19:47,933 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:19:47,934 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:19:47,954 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:19:47,954 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:19:47,978 INFO L142 QuantifierPusher]: treesize reduction 27, result has 64.5 percent of original size [2021-03-11 14:19:47,979 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 14:19:48,008 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:19:48,008 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:19:48,045 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:19:48,045 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:19:48,089 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:19:48,090 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:19:48,129 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:19:48,129 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1919667648] [2021-03-11 14:19:48,129 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:19:48,130 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:19:48,130 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561144839] [2021-03-11 14:19:48,130 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:19:48,130 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:19:48,130 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:19:48,130 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:19:48,130 INFO L87 Difference]: Start difference. First operand 3121 states and 15584 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:48,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:19:48,331 INFO L93 Difference]: Finished difference Result 6005 states and 26796 transitions. [2021-03-11 14:19:48,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:19:48,332 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:19:48,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:19:48,346 INFO L225 Difference]: With dead ends: 6005 [2021-03-11 14:19:48,346 INFO L226 Difference]: Without dead ends: 5985 [2021-03-11 14:19:48,347 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 295.4ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:19:48,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5985 states. [2021-03-11 14:19:48,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5985 to 3128. [2021-03-11 14:19:48,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3128 states, 3127 states have (on average 4.9878477774224494) internal successors, (15597), 3127 states have internal predecessors, (15597), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:48,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3128 states to 3128 states and 15597 transitions. [2021-03-11 14:19:48,483 INFO L78 Accepts]: Start accepts. Automaton has 3128 states and 15597 transitions. Word has length 31 [2021-03-11 14:19:48,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:19:48,483 INFO L480 AbstractCegarLoop]: Abstraction has 3128 states and 15597 transitions. [2021-03-11 14:19:48,483 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:48,483 INFO L276 IsEmpty]: Start isEmpty. Operand 3128 states and 15597 transitions. [2021-03-11 14:19:48,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:19:48,487 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:19:48,487 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:19:48,487 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable259 [2021-03-11 14:19:48,488 INFO L428 AbstractCegarLoop]: === Iteration 261 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:19:48,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:19:48,488 INFO L82 PathProgramCache]: Analyzing trace with hash 1832897319, now seen corresponding path program 252 times [2021-03-11 14:19:48,488 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:19:48,488 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [499953461] [2021-03-11 14:19:48,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:19:48,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:19:48,501 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:48,502 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:19:48,502 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:48,502 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:19:48,507 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:19:48,507 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:19:48,515 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:19:48,515 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:19:48,527 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:19:48,528 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:19:48,544 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:19:48,544 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:19:48,564 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:19:48,565 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:19:48,590 INFO L142 QuantifierPusher]: treesize reduction 27, result has 64.5 percent of original size [2021-03-11 14:19:48,590 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 14:19:48,620 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:19:48,620 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:19:48,657 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:19:48,658 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:19:48,711 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:19:48,712 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:19:48,763 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:19:48,764 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [499953461] [2021-03-11 14:19:48,764 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:19:48,764 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:19:48,764 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1928549658] [2021-03-11 14:19:48,764 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:19:48,764 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:19:48,764 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:19:48,764 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:19:48,764 INFO L87 Difference]: Start difference. First operand 3128 states and 15597 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:49,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:19:49,001 INFO L93 Difference]: Finished difference Result 6003 states and 26785 transitions. [2021-03-11 14:19:49,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:19:49,002 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:19:49,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:19:49,019 INFO L225 Difference]: With dead ends: 6003 [2021-03-11 14:19:49,019 INFO L226 Difference]: Without dead ends: 5973 [2021-03-11 14:19:49,019 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 331.9ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:19:49,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5973 states. [2021-03-11 14:19:49,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5973 to 3116. [2021-03-11 14:19:49,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3116 states, 3115 states have (on average 4.998394863563403) internal successors, (15570), 3115 states have internal predecessors, (15570), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:49,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3116 states to 3116 states and 15570 transitions. [2021-03-11 14:19:49,164 INFO L78 Accepts]: Start accepts. Automaton has 3116 states and 15570 transitions. Word has length 31 [2021-03-11 14:19:49,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:19:49,164 INFO L480 AbstractCegarLoop]: Abstraction has 3116 states and 15570 transitions. [2021-03-11 14:19:49,164 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:49,164 INFO L276 IsEmpty]: Start isEmpty. Operand 3116 states and 15570 transitions. [2021-03-11 14:19:49,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:19:49,169 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:19:49,169 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:19:49,169 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable260 [2021-03-11 14:19:49,169 INFO L428 AbstractCegarLoop]: === Iteration 262 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:19:49,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:19:49,169 INFO L82 PathProgramCache]: Analyzing trace with hash 652720423, now seen corresponding path program 253 times [2021-03-11 14:19:49,169 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:19:49,169 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1614611165] [2021-03-11 14:19:49,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:19:49,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:19:49,181 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:49,181 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:19:49,182 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:49,182 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:19:49,187 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:19:49,187 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:19:49,195 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:19:49,195 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:19:49,207 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:19:49,207 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:19:49,223 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:19:49,224 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:19:49,244 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:19:49,244 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:19:49,269 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:19:49,270 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:19:49,300 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:19:49,300 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:19:49,337 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:19:49,338 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:19:49,381 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:19:49,381 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:19:49,421 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:19:49,421 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1614611165] [2021-03-11 14:19:49,421 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:19:49,421 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:19:49,421 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [17814278] [2021-03-11 14:19:49,421 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:19:49,421 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:19:49,421 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:19:49,421 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:19:49,421 INFO L87 Difference]: Start difference. First operand 3116 states and 15570 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:49,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:19:49,619 INFO L93 Difference]: Finished difference Result 5990 states and 26768 transitions. [2021-03-11 14:19:49,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:19:49,620 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:19:49,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:19:49,633 INFO L225 Difference]: With dead ends: 5990 [2021-03-11 14:19:49,633 INFO L226 Difference]: Without dead ends: 5974 [2021-03-11 14:19:49,633 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 291.4ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:19:49,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5974 states. [2021-03-11 14:19:49,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5974 to 3126. [2021-03-11 14:19:49,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3126 states, 3125 states have (on average 4.99136) internal successors, (15598), 3125 states have internal predecessors, (15598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:49,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3126 states to 3126 states and 15598 transitions. [2021-03-11 14:19:49,781 INFO L78 Accepts]: Start accepts. Automaton has 3126 states and 15598 transitions. Word has length 31 [2021-03-11 14:19:49,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:19:49,782 INFO L480 AbstractCegarLoop]: Abstraction has 3126 states and 15598 transitions. [2021-03-11 14:19:49,782 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:49,782 INFO L276 IsEmpty]: Start isEmpty. Operand 3126 states and 15598 transitions. [2021-03-11 14:19:49,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:19:49,788 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:19:49,788 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:19:49,788 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable261 [2021-03-11 14:19:49,788 INFO L428 AbstractCegarLoop]: === Iteration 263 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:19:49,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:19:49,788 INFO L82 PathProgramCache]: Analyzing trace with hash -1037222481, now seen corresponding path program 254 times [2021-03-11 14:19:49,788 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:19:49,788 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [312462300] [2021-03-11 14:19:49,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:19:49,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:19:49,800 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:49,801 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:19:49,801 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:49,801 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:19:49,806 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:19:49,807 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:19:49,816 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:19:49,816 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:19:49,830 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:19:49,830 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:19:49,848 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:19:49,849 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:19:49,870 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:19:49,871 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:19:49,896 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:19:49,896 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:19:49,927 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:19:49,928 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:19:49,964 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:19:49,965 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:19:50,008 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:19:50,009 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:19:50,048 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:19:50,048 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [312462300] [2021-03-11 14:19:50,048 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:19:50,048 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:19:50,048 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1278679363] [2021-03-11 14:19:50,049 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:19:50,049 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:19:50,049 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:19:50,049 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:19:50,049 INFO L87 Difference]: Start difference. First operand 3126 states and 15598 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:50,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:19:50,248 INFO L93 Difference]: Finished difference Result 5991 states and 26765 transitions. [2021-03-11 14:19:50,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:19:50,248 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:19:50,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:19:50,261 INFO L225 Difference]: With dead ends: 5991 [2021-03-11 14:19:50,261 INFO L226 Difference]: Without dead ends: 5969 [2021-03-11 14:19:50,262 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 298.1ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:19:50,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5969 states. [2021-03-11 14:19:50,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5969 to 3121. [2021-03-11 14:19:50,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3121 states, 3120 states have (on average 4.994871794871795) internal successors, (15584), 3120 states have internal predecessors, (15584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:50,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3121 states to 3121 states and 15584 transitions. [2021-03-11 14:19:50,397 INFO L78 Accepts]: Start accepts. Automaton has 3121 states and 15584 transitions. Word has length 31 [2021-03-11 14:19:50,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:19:50,397 INFO L480 AbstractCegarLoop]: Abstraction has 3121 states and 15584 transitions. [2021-03-11 14:19:50,397 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:50,397 INFO L276 IsEmpty]: Start isEmpty. Operand 3121 states and 15584 transitions. [2021-03-11 14:19:50,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:19:50,402 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:19:50,402 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:19:50,402 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable262 [2021-03-11 14:19:50,402 INFO L428 AbstractCegarLoop]: === Iteration 264 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:19:50,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:19:50,402 INFO L82 PathProgramCache]: Analyzing trace with hash 228409187, now seen corresponding path program 255 times [2021-03-11 14:19:50,402 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:19:50,402 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [319510397] [2021-03-11 14:19:50,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:19:50,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:19:50,414 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:50,414 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:19:50,414 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:50,415 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:19:50,419 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:19:50,419 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:19:50,427 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:19:50,428 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:19:50,439 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:19:50,440 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:19:50,456 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:19:50,456 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:19:50,476 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:19:50,477 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:19:50,501 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:19:50,501 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:19:50,532 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:19:50,532 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:19:50,568 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:19:50,568 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:19:50,612 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:19:50,612 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:19:50,651 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:19:50,652 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [319510397] [2021-03-11 14:19:50,652 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:19:50,652 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:19:50,652 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1477646339] [2021-03-11 14:19:50,652 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:19:50,652 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:19:50,652 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:19:50,652 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:19:50,652 INFO L87 Difference]: Start difference. First operand 3121 states and 15584 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:50,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:19:50,833 INFO L93 Difference]: Finished difference Result 5991 states and 26765 transitions. [2021-03-11 14:19:50,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:19:50,834 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:19:50,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:19:50,847 INFO L225 Difference]: With dead ends: 5991 [2021-03-11 14:19:50,847 INFO L226 Difference]: Without dead ends: 5975 [2021-03-11 14:19:50,847 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 290.2ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:19:50,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5975 states. [2021-03-11 14:19:50,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5975 to 3126. [2021-03-11 14:19:50,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3126 states, 3125 states have (on average 4.98976) internal successors, (15593), 3125 states have internal predecessors, (15593), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:50,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3126 states to 3126 states and 15593 transitions. [2021-03-11 14:19:50,982 INFO L78 Accepts]: Start accepts. Automaton has 3126 states and 15593 transitions. Word has length 31 [2021-03-11 14:19:50,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:19:50,982 INFO L480 AbstractCegarLoop]: Abstraction has 3126 states and 15593 transitions. [2021-03-11 14:19:50,982 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:50,983 INFO L276 IsEmpty]: Start isEmpty. Operand 3126 states and 15593 transitions. [2021-03-11 14:19:50,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:19:50,987 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:19:50,987 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:19:50,987 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable263 [2021-03-11 14:19:50,987 INFO L428 AbstractCegarLoop]: === Iteration 265 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:19:50,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:19:50,988 INFO L82 PathProgramCache]: Analyzing trace with hash 1988462127, now seen corresponding path program 256 times [2021-03-11 14:19:50,988 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:19:50,988 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1864956404] [2021-03-11 14:19:50,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:19:50,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:19:50,999 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:51,000 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:19:51,000 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:51,000 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:19:51,005 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:19:51,005 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:19:51,013 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:19:51,014 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:19:51,026 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:19:51,026 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:19:51,043 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:19:51,043 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:19:51,064 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:19:51,064 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:19:51,090 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:19:51,090 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:19:51,121 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:19:51,121 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:19:51,157 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:19:51,157 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:19:51,201 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:19:51,201 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:19:51,241 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:19:51,241 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1864956404] [2021-03-11 14:19:51,241 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:19:51,242 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:19:51,242 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037586692] [2021-03-11 14:19:51,242 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:19:51,242 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:19:51,242 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:19:51,242 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:19:51,242 INFO L87 Difference]: Start difference. First operand 3126 states and 15593 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:51,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:19:51,432 INFO L93 Difference]: Finished difference Result 5993 states and 26764 transitions. [2021-03-11 14:19:51,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:19:51,433 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:19:51,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:19:51,446 INFO L225 Difference]: With dead ends: 5993 [2021-03-11 14:19:51,446 INFO L226 Difference]: Without dead ends: 5970 [2021-03-11 14:19:51,446 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 293.0ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:19:51,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5970 states. [2021-03-11 14:19:51,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5970 to 3121. [2021-03-11 14:19:51,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3121 states, 3120 states have (on average 4.993269230769231) internal successors, (15579), 3120 states have internal predecessors, (15579), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:51,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3121 states to 3121 states and 15579 transitions. [2021-03-11 14:19:51,583 INFO L78 Accepts]: Start accepts. Automaton has 3121 states and 15579 transitions. Word has length 31 [2021-03-11 14:19:51,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:19:51,583 INFO L480 AbstractCegarLoop]: Abstraction has 3121 states and 15579 transitions. [2021-03-11 14:19:51,583 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:51,583 INFO L276 IsEmpty]: Start isEmpty. Operand 3121 states and 15579 transitions. [2021-03-11 14:19:51,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:19:51,588 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:19:51,588 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:19:51,588 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable264 [2021-03-11 14:19:51,588 INFO L428 AbstractCegarLoop]: === Iteration 266 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:19:51,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:19:51,589 INFO L82 PathProgramCache]: Analyzing trace with hash 1984811107, now seen corresponding path program 257 times [2021-03-11 14:19:51,589 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:19:51,589 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2055064558] [2021-03-11 14:19:51,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:19:51,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:19:51,600 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:51,601 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:19:51,601 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:51,601 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:19:51,606 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:19:51,606 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:19:51,614 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:19:51,614 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:19:51,626 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:19:51,626 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:19:51,643 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:19:51,643 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:19:51,663 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:19:51,664 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:19:51,688 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:19:51,689 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:19:51,719 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:19:51,720 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:19:51,756 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:19:51,756 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:19:51,799 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:19:51,800 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:19:51,839 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:19:51,839 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2055064558] [2021-03-11 14:19:51,839 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:19:51,839 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:19:51,839 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [810177006] [2021-03-11 14:19:51,840 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:19:51,840 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:19:51,840 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:19:51,840 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:19:51,840 INFO L87 Difference]: Start difference. First operand 3121 states and 15579 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:52,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:19:52,060 INFO L93 Difference]: Finished difference Result 5994 states and 26767 transitions. [2021-03-11 14:19:52,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:19:52,061 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:19:52,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:19:52,074 INFO L225 Difference]: With dead ends: 5994 [2021-03-11 14:19:52,074 INFO L226 Difference]: Without dead ends: 5977 [2021-03-11 14:19:52,074 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 291.6ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:19:52,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5977 states. [2021-03-11 14:19:52,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5977 to 3127. [2021-03-11 14:19:52,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3127 states, 3126 states have (on average 4.987204094689699) internal successors, (15590), 3126 states have internal predecessors, (15590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:52,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3127 states to 3127 states and 15590 transitions. [2021-03-11 14:19:52,212 INFO L78 Accepts]: Start accepts. Automaton has 3127 states and 15590 transitions. Word has length 31 [2021-03-11 14:19:52,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:19:52,212 INFO L480 AbstractCegarLoop]: Abstraction has 3127 states and 15590 transitions. [2021-03-11 14:19:52,212 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:52,213 INFO L276 IsEmpty]: Start isEmpty. Operand 3127 states and 15590 transitions. [2021-03-11 14:19:52,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:19:52,218 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:19:52,218 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:19:52,218 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable265 [2021-03-11 14:19:52,218 INFO L428 AbstractCegarLoop]: === Iteration 267 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:19:52,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:19:52,218 INFO L82 PathProgramCache]: Analyzing trace with hash 1139839655, now seen corresponding path program 258 times [2021-03-11 14:19:52,218 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:19:52,218 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [14266514] [2021-03-11 14:19:52,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:19:52,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:19:52,230 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:52,230 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:19:52,231 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:52,231 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:19:52,235 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:19:52,236 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:19:52,244 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:19:52,244 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:19:52,256 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:19:52,256 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:19:52,273 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:19:52,273 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:19:52,294 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:19:52,294 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:19:52,319 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:19:52,320 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:19:52,350 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:19:52,351 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:19:52,387 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:19:52,388 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:19:52,431 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:19:52,432 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:19:52,472 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:19:52,472 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [14266514] [2021-03-11 14:19:52,472 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:19:52,472 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:19:52,472 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1428827744] [2021-03-11 14:19:52,472 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:19:52,472 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:19:52,472 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:19:52,473 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:19:52,473 INFO L87 Difference]: Start difference. First operand 3127 states and 15590 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:52,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:19:52,668 INFO L93 Difference]: Finished difference Result 5995 states and 26763 transitions. [2021-03-11 14:19:52,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:19:52,669 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:19:52,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:19:52,682 INFO L225 Difference]: With dead ends: 5995 [2021-03-11 14:19:52,682 INFO L226 Difference]: Without dead ends: 5966 [2021-03-11 14:19:52,682 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 294.0ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:19:52,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5966 states. [2021-03-11 14:19:52,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5966 to 3116. [2021-03-11 14:19:52,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3116 states, 3115 states have (on average 4.996789727126806) internal successors, (15565), 3115 states have internal predecessors, (15565), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:52,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3116 states to 3116 states and 15565 transitions. [2021-03-11 14:19:52,818 INFO L78 Accepts]: Start accepts. Automaton has 3116 states and 15565 transitions. Word has length 31 [2021-03-11 14:19:52,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:19:52,818 INFO L480 AbstractCegarLoop]: Abstraction has 3116 states and 15565 transitions. [2021-03-11 14:19:52,818 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:52,818 INFO L276 IsEmpty]: Start isEmpty. Operand 3116 states and 15565 transitions. [2021-03-11 14:19:52,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:19:52,823 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:19:52,823 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:19:52,823 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable266 [2021-03-11 14:19:52,823 INFO L428 AbstractCegarLoop]: === Iteration 268 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:19:52,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:19:52,823 INFO L82 PathProgramCache]: Analyzing trace with hash -885308693, now seen corresponding path program 259 times [2021-03-11 14:19:52,823 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:19:52,823 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [862248531] [2021-03-11 14:19:52,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:19:52,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:19:52,835 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:52,835 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:19:52,835 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:52,836 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:19:52,840 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:19:52,841 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:19:52,849 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:19:52,849 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:19:52,861 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:19:52,861 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:19:52,878 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:19:52,878 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:19:52,898 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:19:52,899 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:19:52,924 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:19:52,924 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:19:52,955 INFO L142 QuantifierPusher]: treesize reduction 45, result has 59.1 percent of original size [2021-03-11 14:19:52,955 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:19:53,015 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:19:53,016 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:19:53,060 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:19:53,060 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:19:53,100 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:19:53,101 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [862248531] [2021-03-11 14:19:53,101 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:19:53,101 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:19:53,101 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [233813282] [2021-03-11 14:19:53,101 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:19:53,101 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:19:53,101 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:19:53,101 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:19:53,101 INFO L87 Difference]: Start difference. First operand 3116 states and 15565 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:53,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:19:53,293 INFO L93 Difference]: Finished difference Result 6007 states and 26803 transitions. [2021-03-11 14:19:53,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:19:53,294 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:19:53,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:19:53,307 INFO L225 Difference]: With dead ends: 6007 [2021-03-11 14:19:53,307 INFO L226 Difference]: Without dead ends: 5987 [2021-03-11 14:19:53,307 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 324.0ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:19:53,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5987 states. [2021-03-11 14:19:53,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5987 to 3128. [2021-03-11 14:19:53,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3128 states, 3127 states have (on average 4.988487368084426) internal successors, (15599), 3127 states have internal predecessors, (15599), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:53,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3128 states to 3128 states and 15599 transitions. [2021-03-11 14:19:53,443 INFO L78 Accepts]: Start accepts. Automaton has 3128 states and 15599 transitions. Word has length 31 [2021-03-11 14:19:53,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:19:53,443 INFO L480 AbstractCegarLoop]: Abstraction has 3128 states and 15599 transitions. [2021-03-11 14:19:53,443 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:53,443 INFO L276 IsEmpty]: Start isEmpty. Operand 3128 states and 15599 transitions. [2021-03-11 14:19:53,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:19:53,448 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:19:53,448 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:19:53,448 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable267 [2021-03-11 14:19:53,448 INFO L428 AbstractCegarLoop]: === Iteration 269 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:19:53,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:19:53,448 INFO L82 PathProgramCache]: Analyzing trace with hash -1730280145, now seen corresponding path program 260 times [2021-03-11 14:19:53,448 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:19:53,448 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [23423562] [2021-03-11 14:19:53,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:19:53,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:19:53,461 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:53,461 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:19:53,461 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:53,462 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:19:53,466 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:19:53,467 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:19:53,475 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:19:53,475 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:19:53,487 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:19:53,487 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:19:53,504 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:19:53,504 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:19:53,525 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:19:53,526 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:19:53,551 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:19:53,551 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:19:53,582 INFO L142 QuantifierPusher]: treesize reduction 45, result has 59.1 percent of original size [2021-03-11 14:19:53,583 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:19:53,642 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:19:53,643 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:19:53,687 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:19:53,688 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:19:53,727 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:19:53,728 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [23423562] [2021-03-11 14:19:53,728 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:19:53,728 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:19:53,728 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1163681165] [2021-03-11 14:19:53,728 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:19:53,728 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:19:53,728 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:19:53,728 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:19:53,728 INFO L87 Difference]: Start difference. First operand 3128 states and 15599 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:53,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:19:53,923 INFO L93 Difference]: Finished difference Result 6004 states and 26791 transitions. [2021-03-11 14:19:53,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:19:53,924 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:19:53,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:19:53,937 INFO L225 Difference]: With dead ends: 6004 [2021-03-11 14:19:53,937 INFO L226 Difference]: Without dead ends: 5981 [2021-03-11 14:19:53,937 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 317.8ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:19:54,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5981 states. [2021-03-11 14:19:54,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5981 to 3122. [2021-03-11 14:19:54,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3122 states, 3121 states have (on average 4.9926305671259215) internal successors, (15582), 3121 states have internal predecessors, (15582), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:54,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3122 states to 3122 states and 15582 transitions. [2021-03-11 14:19:54,072 INFO L78 Accepts]: Start accepts. Automaton has 3122 states and 15582 transitions. Word has length 31 [2021-03-11 14:19:54,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:19:54,072 INFO L480 AbstractCegarLoop]: Abstraction has 3122 states and 15582 transitions. [2021-03-11 14:19:54,072 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:54,072 INFO L276 IsEmpty]: Start isEmpty. Operand 3122 states and 15582 transitions. [2021-03-11 14:19:54,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:19:54,077 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:19:54,077 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:19:54,077 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable268 [2021-03-11 14:19:54,077 INFO L428 AbstractCegarLoop]: === Iteration 270 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:19:54,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:19:54,077 INFO L82 PathProgramCache]: Analyzing trace with hash -1309619929, now seen corresponding path program 261 times [2021-03-11 14:19:54,077 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:19:54,077 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [806267304] [2021-03-11 14:19:54,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:19:54,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:19:54,089 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:54,089 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:19:54,090 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:54,090 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:19:54,094 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:19:54,095 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:19:54,103 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:19:54,103 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:19:54,115 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:19:54,115 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:19:54,132 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:19:54,132 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:19:54,153 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:19:54,153 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:19:54,179 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:19:54,179 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:19:54,210 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:19:54,211 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:19:54,248 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:19:54,249 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:19:54,293 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:19:54,294 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:19:54,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:19:54,334 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [806267304] [2021-03-11 14:19:54,334 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:19:54,334 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:19:54,335 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1359620182] [2021-03-11 14:19:54,335 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:19:54,335 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:19:54,335 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:19:54,335 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:19:54,335 INFO L87 Difference]: Start difference. First operand 3122 states and 15582 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:54,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:19:54,567 INFO L93 Difference]: Finished difference Result 6009 states and 26802 transitions. [2021-03-11 14:19:54,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:19:54,567 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:19:54,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:19:54,580 INFO L225 Difference]: With dead ends: 6009 [2021-03-11 14:19:54,580 INFO L226 Difference]: Without dead ends: 5989 [2021-03-11 14:19:54,581 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 303.3ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:19:54,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5989 states. [2021-03-11 14:19:54,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5989 to 3129. [2021-03-11 14:19:54,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3129 states, 3128 states have (on average 4.985613810741688) internal successors, (15595), 3128 states have internal predecessors, (15595), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:54,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3129 states to 3129 states and 15595 transitions. [2021-03-11 14:19:54,718 INFO L78 Accepts]: Start accepts. Automaton has 3129 states and 15595 transitions. Word has length 31 [2021-03-11 14:19:54,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:19:54,718 INFO L480 AbstractCegarLoop]: Abstraction has 3129 states and 15595 transitions. [2021-03-11 14:19:54,718 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:54,718 INFO L276 IsEmpty]: Start isEmpty. Operand 3129 states and 15595 transitions. [2021-03-11 14:19:54,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:19:54,722 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:19:54,722 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:19:54,723 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable269 [2021-03-11 14:19:54,723 INFO L428 AbstractCegarLoop]: === Iteration 271 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:19:54,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:19:54,723 INFO L82 PathProgramCache]: Analyzing trace with hash 1295404463, now seen corresponding path program 262 times [2021-03-11 14:19:54,723 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:19:54,723 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2031958509] [2021-03-11 14:19:54,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:19:54,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:19:54,734 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:54,735 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:19:54,735 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:54,735 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:19:54,740 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:19:54,740 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:19:54,748 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:19:54,749 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:19:54,761 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:19:54,761 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:19:54,777 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:19:54,778 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:19:54,798 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:19:54,798 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:19:54,823 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:19:54,824 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:19:54,854 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:19:54,855 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:19:54,892 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:19:54,892 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:19:54,936 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:19:54,937 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:19:54,976 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:19:54,976 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2031958509] [2021-03-11 14:19:54,977 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:19:54,977 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:19:54,977 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [929202918] [2021-03-11 14:19:54,977 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:19:54,977 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:19:54,977 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:19:54,977 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:19:54,977 INFO L87 Difference]: Start difference. First operand 3129 states and 15595 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:55,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:19:55,162 INFO L93 Difference]: Finished difference Result 6007 states and 26791 transitions. [2021-03-11 14:19:55,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:19:55,162 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:19:55,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:19:55,175 INFO L225 Difference]: With dead ends: 6007 [2021-03-11 14:19:55,175 INFO L226 Difference]: Without dead ends: 5982 [2021-03-11 14:19:55,175 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 292.7ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:19:55,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5982 states. [2021-03-11 14:19:55,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5982 to 3122. [2021-03-11 14:19:55,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3122 states, 3121 states have (on average 4.990708106376162) internal successors, (15576), 3121 states have internal predecessors, (15576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:55,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3122 states to 3122 states and 15576 transitions. [2021-03-11 14:19:55,316 INFO L78 Accepts]: Start accepts. Automaton has 3122 states and 15576 transitions. Word has length 31 [2021-03-11 14:19:55,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:19:55,316 INFO L480 AbstractCegarLoop]: Abstraction has 3122 states and 15576 transitions. [2021-03-11 14:19:55,316 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:55,316 INFO L276 IsEmpty]: Start isEmpty. Operand 3122 states and 15576 transitions. [2021-03-11 14:19:55,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:19:55,321 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:19:55,321 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:19:55,321 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable270 [2021-03-11 14:19:55,321 INFO L428 AbstractCegarLoop]: === Iteration 272 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:19:55,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:19:55,321 INFO L82 PathProgramCache]: Analyzing trace with hash 1716064679, now seen corresponding path program 263 times [2021-03-11 14:19:55,321 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:19:55,321 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1760304053] [2021-03-11 14:19:55,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:19:55,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:19:55,333 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:55,333 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:19:55,334 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:55,334 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:19:55,338 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:19:55,339 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:19:55,347 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:19:55,347 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:19:55,359 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:19:55,360 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:19:55,376 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:19:55,377 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:19:55,397 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:19:55,398 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:19:55,423 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:19:55,423 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:19:55,454 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:19:55,455 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:19:55,494 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:19:55,495 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:19:55,540 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:19:55,540 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:19:55,580 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:19:55,581 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1760304053] [2021-03-11 14:19:55,581 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:19:55,581 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:19:55,581 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1620602373] [2021-03-11 14:19:55,581 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:19:55,581 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:19:55,581 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:19:55,581 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:19:55,581 INFO L87 Difference]: Start difference. First operand 3122 states and 15576 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:55,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:19:55,806 INFO L93 Difference]: Finished difference Result 6002 states and 26781 transitions. [2021-03-11 14:19:55,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:19:55,807 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:19:55,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:19:55,820 INFO L225 Difference]: With dead ends: 6002 [2021-03-11 14:19:55,820 INFO L226 Difference]: Without dead ends: 5985 [2021-03-11 14:19:55,820 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 298.6ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:19:55,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5985 states. [2021-03-11 14:19:55,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5985 to 3128. [2021-03-11 14:19:55,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3128 states, 3127 states have (on average 4.984649824112568) internal successors, (15587), 3127 states have internal predecessors, (15587), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:55,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3128 states to 3128 states and 15587 transitions. [2021-03-11 14:19:55,956 INFO L78 Accepts]: Start accepts. Automaton has 3128 states and 15587 transitions. Word has length 31 [2021-03-11 14:19:55,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:19:55,956 INFO L480 AbstractCegarLoop]: Abstraction has 3128 states and 15587 transitions. [2021-03-11 14:19:55,956 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:55,956 INFO L276 IsEmpty]: Start isEmpty. Operand 3128 states and 15587 transitions. [2021-03-11 14:19:55,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:19:55,960 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:19:55,961 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:19:55,961 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable271 [2021-03-11 14:19:55,961 INFO L428 AbstractCegarLoop]: === Iteration 273 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:19:55,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:19:55,961 INFO L82 PathProgramCache]: Analyzing trace with hash 871093227, now seen corresponding path program 264 times [2021-03-11 14:19:55,961 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:19:55,961 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1290434524] [2021-03-11 14:19:55,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:19:55,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:19:55,973 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:55,973 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:19:55,973 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:55,974 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:19:55,978 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:19:55,979 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:19:55,987 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:19:55,987 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:19:56,000 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:19:56,000 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:19:56,017 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:19:56,017 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:19:56,038 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:19:56,038 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:19:56,063 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:19:56,064 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:19:56,095 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:19:56,095 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:19:56,132 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:19:56,133 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:19:56,176 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:19:56,177 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:19:56,216 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:19:56,217 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1290434524] [2021-03-11 14:19:56,217 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:19:56,217 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:19:56,217 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1548065624] [2021-03-11 14:19:56,217 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:19:56,217 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:19:56,217 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:19:56,217 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:19:56,217 INFO L87 Difference]: Start difference. First operand 3128 states and 15587 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:56,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:19:56,447 INFO L93 Difference]: Finished difference Result 6003 states and 26777 transitions. [2021-03-11 14:19:56,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:19:56,448 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:19:56,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:19:56,460 INFO L225 Difference]: With dead ends: 6003 [2021-03-11 14:19:56,461 INFO L226 Difference]: Without dead ends: 5968 [2021-03-11 14:19:56,461 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 295.5ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:19:56,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5968 states. [2021-03-11 14:19:56,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5968 to 3111. [2021-03-11 14:19:56,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3111 states, 3110 states have (on average 5.0003215434083605) internal successors, (15551), 3110 states have internal predecessors, (15551), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:56,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3111 states to 3111 states and 15551 transitions. [2021-03-11 14:19:56,594 INFO L78 Accepts]: Start accepts. Automaton has 3111 states and 15551 transitions. Word has length 31 [2021-03-11 14:19:56,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:19:56,594 INFO L480 AbstractCegarLoop]: Abstraction has 3111 states and 15551 transitions. [2021-03-11 14:19:56,594 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:56,595 INFO L276 IsEmpty]: Start isEmpty. Operand 3111 states and 15551 transitions. [2021-03-11 14:19:56,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:19:56,599 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:19:56,599 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:19:56,599 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable272 [2021-03-11 14:19:56,599 INFO L428 AbstractCegarLoop]: === Iteration 274 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:19:56,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:19:56,599 INFO L82 PathProgramCache]: Analyzing trace with hash -144766147, now seen corresponding path program 265 times [2021-03-11 14:19:56,600 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:19:56,600 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [417206975] [2021-03-11 14:19:56,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:19:56,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:19:56,611 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:56,611 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:19:56,612 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:56,612 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:19:56,617 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:19:56,617 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:19:56,625 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:19:56,625 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:19:56,638 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:19:56,638 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:19:56,654 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:19:56,655 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:19:56,676 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:19:56,676 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:19:56,718 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:19:56,718 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:19:56,769 INFO L142 QuantifierPusher]: treesize reduction 45, result has 59.1 percent of original size [2021-03-11 14:19:56,769 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:19:56,828 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:19:56,829 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:19:56,872 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:19:56,873 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:19:56,913 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:19:56,913 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [417206975] [2021-03-11 14:19:56,914 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:19:56,914 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:19:56,914 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1882645704] [2021-03-11 14:19:56,914 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:19:56,914 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:19:56,914 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:19:56,914 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:19:56,914 INFO L87 Difference]: Start difference. First operand 3111 states and 15551 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:57,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:19:57,160 INFO L93 Difference]: Finished difference Result 6012 states and 26823 transitions. [2021-03-11 14:19:57,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:19:57,161 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:19:57,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:19:57,174 INFO L225 Difference]: With dead ends: 6012 [2021-03-11 14:19:57,174 INFO L226 Difference]: Without dead ends: 5996 [2021-03-11 14:19:57,174 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 354.4ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:19:57,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5996 states. [2021-03-11 14:19:57,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5996 to 3128. [2021-03-11 14:19:57,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3128 states, 3127 states have (on average 4.992005116725296) internal successors, (15610), 3127 states have internal predecessors, (15610), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:57,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3128 states to 3128 states and 15610 transitions. [2021-03-11 14:19:57,310 INFO L78 Accepts]: Start accepts. Automaton has 3128 states and 15610 transitions. Word has length 31 [2021-03-11 14:19:57,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:19:57,310 INFO L480 AbstractCegarLoop]: Abstraction has 3128 states and 15610 transitions. [2021-03-11 14:19:57,310 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:57,311 INFO L276 IsEmpty]: Start isEmpty. Operand 3128 states and 15610 transitions. [2021-03-11 14:19:57,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:19:57,315 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:19:57,315 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:19:57,315 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable273 [2021-03-11 14:19:57,316 INFO L428 AbstractCegarLoop]: === Iteration 275 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:19:57,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:19:57,316 INFO L82 PathProgramCache]: Analyzing trace with hash -989737599, now seen corresponding path program 266 times [2021-03-11 14:19:57,316 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:19:57,316 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1790740868] [2021-03-11 14:19:57,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:19:57,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:19:57,328 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:57,328 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:19:57,328 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:57,329 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:19:57,333 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:19:57,334 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:19:57,342 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:19:57,342 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:19:57,354 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:19:57,354 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:19:57,371 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:19:57,371 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:19:57,392 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:19:57,393 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:19:57,436 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:19:57,436 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:19:57,487 INFO L142 QuantifierPusher]: treesize reduction 45, result has 59.1 percent of original size [2021-03-11 14:19:57,488 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:19:57,546 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:19:57,547 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:19:57,592 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:19:57,592 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:19:57,633 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:19:57,633 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1790740868] [2021-03-11 14:19:57,633 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:19:57,633 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:19:57,633 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226211220] [2021-03-11 14:19:57,633 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:19:57,633 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:19:57,633 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:19:57,634 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:19:57,634 INFO L87 Difference]: Start difference. First operand 3128 states and 15610 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:57,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:19:57,888 INFO L93 Difference]: Finished difference Result 6016 states and 26826 transitions. [2021-03-11 14:19:57,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:19:57,889 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:19:57,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:19:57,902 INFO L225 Difference]: With dead ends: 6016 [2021-03-11 14:19:57,903 INFO L226 Difference]: Without dead ends: 5991 [2021-03-11 14:19:57,903 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 364.3ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:19:57,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5991 states. [2021-03-11 14:19:58,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5991 to 3123. [2021-03-11 14:19:58,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3123 states, 3122 states have (on average 4.995515695067264) internal successors, (15596), 3122 states have internal predecessors, (15596), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:58,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3123 states to 3123 states and 15596 transitions. [2021-03-11 14:19:58,039 INFO L78 Accepts]: Start accepts. Automaton has 3123 states and 15596 transitions. Word has length 31 [2021-03-11 14:19:58,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:19:58,040 INFO L480 AbstractCegarLoop]: Abstraction has 3123 states and 15596 transitions. [2021-03-11 14:19:58,040 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:58,040 INFO L276 IsEmpty]: Start isEmpty. Operand 3123 states and 15596 transitions. [2021-03-11 14:19:58,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:19:58,044 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:19:58,044 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:19:58,044 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable274 [2021-03-11 14:19:58,045 INFO L428 AbstractCegarLoop]: === Iteration 276 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:19:58,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:19:58,045 INFO L82 PathProgramCache]: Analyzing trace with hash -569077383, now seen corresponding path program 267 times [2021-03-11 14:19:58,045 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:19:58,045 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [194901628] [2021-03-11 14:19:58,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:19:58,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:19:58,056 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:58,057 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:19:58,057 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:58,057 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:19:58,062 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:19:58,062 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:19:58,070 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:19:58,071 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:19:58,083 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:19:58,083 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:19:58,100 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:19:58,101 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:19:58,122 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:19:58,122 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:19:58,165 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:19:58,166 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:19:58,217 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:19:58,218 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:19:58,255 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:19:58,256 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:19:58,300 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:19:58,300 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:19:58,341 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:19:58,341 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [194901628] [2021-03-11 14:19:58,342 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:19:58,342 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:19:58,342 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [972099624] [2021-03-11 14:19:58,342 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:19:58,342 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:19:58,342 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:19:58,342 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:19:58,342 INFO L87 Difference]: Start difference. First operand 3123 states and 15596 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:58,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:19:58,615 INFO L93 Difference]: Finished difference Result 6009 states and 26812 transitions. [2021-03-11 14:19:58,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:19:58,616 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:19:58,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:19:58,630 INFO L225 Difference]: With dead ends: 6009 [2021-03-11 14:19:58,630 INFO L226 Difference]: Without dead ends: 5993 [2021-03-11 14:19:58,630 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 340.0ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:19:58,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5993 states. [2021-03-11 14:19:58,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5993 to 3128. [2021-03-11 14:19:58,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3128 states, 3127 states have (on average 4.9904061400703545) internal successors, (15605), 3127 states have internal predecessors, (15605), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:58,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3128 states to 3128 states and 15605 transitions. [2021-03-11 14:19:58,768 INFO L78 Accepts]: Start accepts. Automaton has 3128 states and 15605 transitions. Word has length 31 [2021-03-11 14:19:58,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:19:58,768 INFO L480 AbstractCegarLoop]: Abstraction has 3128 states and 15605 transitions. [2021-03-11 14:19:58,768 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:58,768 INFO L276 IsEmpty]: Start isEmpty. Operand 3128 states and 15605 transitions. [2021-03-11 14:19:58,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:19:58,773 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:19:58,773 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:19:58,773 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable275 [2021-03-11 14:19:58,773 INFO L428 AbstractCegarLoop]: === Iteration 277 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:19:58,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:19:58,774 INFO L82 PathProgramCache]: Analyzing trace with hash 2035947009, now seen corresponding path program 268 times [2021-03-11 14:19:58,774 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:19:58,774 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1556830748] [2021-03-11 14:19:58,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:19:58,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:19:58,785 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:58,786 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:19:58,786 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:58,786 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:19:58,791 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:19:58,791 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:19:58,800 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:19:58,800 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:19:58,813 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:19:58,813 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:19:58,830 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:19:58,830 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:19:58,852 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:19:58,852 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:19:58,895 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:19:58,896 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:19:58,948 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:19:58,949 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:19:58,986 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:19:58,987 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:19:59,032 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:19:59,033 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:19:59,073 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:19:59,074 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1556830748] [2021-03-11 14:19:59,074 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:19:59,074 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:19:59,074 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1437288628] [2021-03-11 14:19:59,074 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:19:59,074 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:19:59,074 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:19:59,074 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:19:59,074 INFO L87 Difference]: Start difference. First operand 3128 states and 15605 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:59,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:19:59,281 INFO L93 Difference]: Finished difference Result 6010 states and 26809 transitions. [2021-03-11 14:19:59,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:19:59,282 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:19:59,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:19:59,295 INFO L225 Difference]: With dead ends: 6010 [2021-03-11 14:19:59,295 INFO L226 Difference]: Without dead ends: 5988 [2021-03-11 14:19:59,295 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 340.1ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:19:59,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5988 states. [2021-03-11 14:19:59,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5988 to 3123. [2021-03-11 14:19:59,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3123 states, 3122 states have (on average 4.993914157591288) internal successors, (15591), 3122 states have internal predecessors, (15591), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:59,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3123 states to 3123 states and 15591 transitions. [2021-03-11 14:19:59,430 INFO L78 Accepts]: Start accepts. Automaton has 3123 states and 15591 transitions. Word has length 31 [2021-03-11 14:19:59,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:19:59,430 INFO L480 AbstractCegarLoop]: Abstraction has 3123 states and 15591 transitions. [2021-03-11 14:19:59,430 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:19:59,430 INFO L276 IsEmpty]: Start isEmpty. Operand 3123 states and 15591 transitions. [2021-03-11 14:19:59,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:19:59,435 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:19:59,435 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:19:59,435 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable276 [2021-03-11 14:19:59,435 INFO L428 AbstractCegarLoop]: === Iteration 278 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:19:59,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:19:59,435 INFO L82 PathProgramCache]: Analyzing trace with hash -1838360071, now seen corresponding path program 269 times [2021-03-11 14:19:59,435 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:19:59,435 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2129612940] [2021-03-11 14:19:59,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:19:59,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:19:59,447 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:59,447 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:19:59,447 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:19:59,448 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:19:59,452 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:19:59,453 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:19:59,461 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:19:59,461 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:19:59,474 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:19:59,474 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:19:59,491 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:19:59,491 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:19:59,512 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:19:59,512 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:19:59,556 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:19:59,557 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:19:59,615 INFO L142 QuantifierPusher]: treesize reduction 45, result has 59.1 percent of original size [2021-03-11 14:19:59,616 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:19:59,684 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:19:59,684 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:19:59,730 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:19:59,731 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:19:59,773 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:19:59,774 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2129612940] [2021-03-11 14:19:59,774 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:19:59,774 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:19:59,774 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [379350992] [2021-03-11 14:19:59,774 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:19:59,774 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:19:59,774 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:19:59,779 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:19:59,779 INFO L87 Difference]: Start difference. First operand 3123 states and 15591 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:00,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:20:00,038 INFO L93 Difference]: Finished difference Result 6018 states and 26826 transitions. [2021-03-11 14:20:00,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:20:00,039 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:20:00,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:20:00,052 INFO L225 Difference]: With dead ends: 6018 [2021-03-11 14:20:00,052 INFO L226 Difference]: Without dead ends: 5998 [2021-03-11 14:20:00,052 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 386.7ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:20:00,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5998 states. [2021-03-11 14:20:00,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5998 to 3129. [2021-03-11 14:20:00,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3129 states, 3128 states have (on average 4.9878516624040925) internal successors, (15602), 3128 states have internal predecessors, (15602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:00,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3129 states to 3129 states and 15602 transitions. [2021-03-11 14:20:00,187 INFO L78 Accepts]: Start accepts. Automaton has 3129 states and 15602 transitions. Word has length 31 [2021-03-11 14:20:00,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:20:00,188 INFO L480 AbstractCegarLoop]: Abstraction has 3129 states and 15602 transitions. [2021-03-11 14:20:00,188 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:00,188 INFO L276 IsEmpty]: Start isEmpty. Operand 3129 states and 15602 transitions. [2021-03-11 14:20:00,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:20:00,192 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:20:00,192 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:20:00,192 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable277 [2021-03-11 14:20:00,192 INFO L428 AbstractCegarLoop]: === Iteration 279 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:20:00,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:20:00,193 INFO L82 PathProgramCache]: Analyzing trace with hash 1611635773, now seen corresponding path program 270 times [2021-03-11 14:20:00,193 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:20:00,193 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [841412668] [2021-03-11 14:20:00,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:20:00,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:20:00,204 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:20:00,205 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:20:00,205 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:20:00,205 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:20:00,210 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:20:00,210 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:20:00,219 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:20:00,219 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:20:00,232 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:20:00,232 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:20:00,250 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:20:00,251 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:20:00,272 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:20:00,273 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:20:00,316 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:20:00,317 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:20:00,368 INFO L142 QuantifierPusher]: treesize reduction 45, result has 59.1 percent of original size [2021-03-11 14:20:00,369 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:20:00,431 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:20:00,432 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:20:00,477 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:20:00,478 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:20:00,518 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:20:00,519 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [841412668] [2021-03-11 14:20:00,519 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:20:00,519 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:20:00,519 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1734300049] [2021-03-11 14:20:00,519 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:20:00,519 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:20:00,519 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:20:00,519 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:20:00,519 INFO L87 Difference]: Start difference. First operand 3129 states and 15602 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:00,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:20:00,728 INFO L93 Difference]: Finished difference Result 6015 states and 26814 transitions. [2021-03-11 14:20:00,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:20:00,729 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:20:00,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:20:00,742 INFO L225 Difference]: With dead ends: 6015 [2021-03-11 14:20:00,742 INFO L226 Difference]: Without dead ends: 5987 [2021-03-11 14:20:00,742 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 366.7ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:20:00,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5987 states. [2021-03-11 14:20:00,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5987 to 3118. [2021-03-11 14:20:00,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3118 states, 3117 states have (on average 4.997433429579724) internal successors, (15577), 3117 states have internal predecessors, (15577), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:00,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3118 states to 3118 states and 15577 transitions. [2021-03-11 14:20:00,878 INFO L78 Accepts]: Start accepts. Automaton has 3118 states and 15577 transitions. Word has length 31 [2021-03-11 14:20:00,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:20:00,878 INFO L480 AbstractCegarLoop]: Abstraction has 3118 states and 15577 transitions. [2021-03-11 14:20:00,878 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:00,878 INFO L276 IsEmpty]: Start isEmpty. Operand 3118 states and 15577 transitions. [2021-03-11 14:20:00,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:20:00,883 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:20:00,883 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:20:00,883 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable278 [2021-03-11 14:20:00,883 INFO L428 AbstractCegarLoop]: === Iteration 280 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:20:00,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:20:00,883 INFO L82 PathProgramCache]: Analyzing trace with hash 1330851431, now seen corresponding path program 271 times [2021-03-11 14:20:00,883 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:20:00,884 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [937386961] [2021-03-11 14:20:00,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:20:00,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:20:00,897 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:20:00,897 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:20:00,897 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:20:00,898 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:20:00,903 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:20:00,903 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:20:00,912 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:20:00,912 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:20:00,926 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:20:00,926 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:20:00,944 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:20:00,945 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:20:00,968 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:20:00,968 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:20:01,013 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:20:01,013 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:20:01,067 INFO L142 QuantifierPusher]: treesize reduction 45, result has 59.1 percent of original size [2021-03-11 14:20:01,067 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:20:01,131 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:20:01,131 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:20:01,181 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:20:01,182 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:20:01,226 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:20:01,226 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [937386961] [2021-03-11 14:20:01,226 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:20:01,226 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:20:01,226 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1753193472] [2021-03-11 14:20:01,226 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:20:01,227 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:20:01,227 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:20:01,227 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:20:01,227 INFO L87 Difference]: Start difference. First operand 3118 states and 15577 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:01,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:20:01,540 INFO L93 Difference]: Finished difference Result 6025 states and 26846 transitions. [2021-03-11 14:20:01,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:20:01,541 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:20:01,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:20:01,554 INFO L225 Difference]: With dead ends: 6025 [2021-03-11 14:20:01,554 INFO L226 Difference]: Without dead ends: 6009 [2021-03-11 14:20:01,555 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 389.8ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:20:01,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6009 states. [2021-03-11 14:20:01,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6009 to 3130. [2021-03-11 14:20:01,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3130 states, 3129 states have (on average 4.988814317673378) internal successors, (15610), 3129 states have internal predecessors, (15610), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:01,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3130 states to 3130 states and 15610 transitions. [2021-03-11 14:20:01,696 INFO L78 Accepts]: Start accepts. Automaton has 3130 states and 15610 transitions. Word has length 31 [2021-03-11 14:20:01,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:20:01,696 INFO L480 AbstractCegarLoop]: Abstraction has 3130 states and 15610 transitions. [2021-03-11 14:20:01,696 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:01,696 INFO L276 IsEmpty]: Start isEmpty. Operand 3130 states and 15610 transitions. [2021-03-11 14:20:01,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:20:01,701 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:20:01,701 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:20:01,701 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable279 [2021-03-11 14:20:01,701 INFO L428 AbstractCegarLoop]: === Iteration 281 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:20:01,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:20:01,702 INFO L82 PathProgramCache]: Analyzing trace with hash 485879979, now seen corresponding path program 272 times [2021-03-11 14:20:01,702 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:20:01,702 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [708092545] [2021-03-11 14:20:01,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:20:01,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:20:01,713 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:20:01,714 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:20:01,714 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:20:01,714 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:20:01,719 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:20:01,720 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:20:01,728 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:20:01,729 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:20:01,741 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:20:01,742 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:20:01,759 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:20:01,759 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:20:01,781 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:20:01,782 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:20:01,826 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:20:01,827 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:20:01,879 INFO L142 QuantifierPusher]: treesize reduction 45, result has 59.1 percent of original size [2021-03-11 14:20:01,879 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:20:01,941 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:20:01,941 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:20:01,989 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:20:01,990 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:20:02,034 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:20:02,034 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [708092545] [2021-03-11 14:20:02,034 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:20:02,034 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:20:02,034 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [497812154] [2021-03-11 14:20:02,034 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:20:02,034 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:20:02,035 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:20:02,035 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:20:02,035 INFO L87 Difference]: Start difference. First operand 3130 states and 15610 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:02,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:20:02,241 INFO L93 Difference]: Finished difference Result 6029 states and 26849 transitions. [2021-03-11 14:20:02,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:20:02,242 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:20:02,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:20:02,256 INFO L225 Difference]: With dead ends: 6029 [2021-03-11 14:20:02,256 INFO L226 Difference]: Without dead ends: 6004 [2021-03-11 14:20:02,256 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 384.4ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:20:02,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6004 states. [2021-03-11 14:20:02,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6004 to 3125. [2021-03-11 14:20:02,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3125 states, 3124 states have (on average 4.992317541613316) internal successors, (15596), 3124 states have internal predecessors, (15596), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:02,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3125 states to 3125 states and 15596 transitions. [2021-03-11 14:20:02,401 INFO L78 Accepts]: Start accepts. Automaton has 3125 states and 15596 transitions. Word has length 31 [2021-03-11 14:20:02,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:20:02,401 INFO L480 AbstractCegarLoop]: Abstraction has 3125 states and 15596 transitions. [2021-03-11 14:20:02,401 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:02,401 INFO L276 IsEmpty]: Start isEmpty. Operand 3125 states and 15596 transitions. [2021-03-11 14:20:02,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:20:02,406 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:20:02,406 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:20:02,406 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable280 [2021-03-11 14:20:02,406 INFO L428 AbstractCegarLoop]: === Iteration 282 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:20:02,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:20:02,406 INFO L82 PathProgramCache]: Analyzing trace with hash -154237895, now seen corresponding path program 273 times [2021-03-11 14:20:02,406 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:20:02,406 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1899975945] [2021-03-11 14:20:02,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:20:02,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:20:02,418 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:20:02,419 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:20:02,419 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:20:02,419 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:20:02,425 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:20:02,425 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:20:02,434 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:20:02,435 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:20:02,448 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:20:02,449 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:20:02,467 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:20:02,468 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:20:02,491 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:20:02,492 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:20:02,539 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:20:02,540 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:20:02,594 INFO L142 QuantifierPusher]: treesize reduction 54, result has 55.4 percent of original size [2021-03-11 14:20:02,594 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-03-11 14:20:02,664 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:20:02,665 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:20:02,712 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:20:02,713 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:20:02,758 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:20:02,758 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1899975945] [2021-03-11 14:20:02,758 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:20:02,758 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:20:02,758 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [583362473] [2021-03-11 14:20:02,759 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:20:02,759 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:20:02,759 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:20:02,759 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:20:02,759 INFO L87 Difference]: Start difference. First operand 3125 states and 15596 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:02,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:20:02,955 INFO L93 Difference]: Finished difference Result 6028 states and 26846 transitions. [2021-03-11 14:20:02,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:20:02,956 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:20:02,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:20:02,970 INFO L225 Difference]: With dead ends: 6028 [2021-03-11 14:20:02,970 INFO L226 Difference]: Without dead ends: 6012 [2021-03-11 14:20:02,970 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 396.5ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:20:03,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6012 states. [2021-03-11 14:20:03,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6012 to 3131. [2021-03-11 14:20:03,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3131 states, 3130 states have (on average 4.986261980830671) internal successors, (15607), 3130 states have internal predecessors, (15607), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:03,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3131 states to 3131 states and 15607 transitions. [2021-03-11 14:20:03,117 INFO L78 Accepts]: Start accepts. Automaton has 3131 states and 15607 transitions. Word has length 31 [2021-03-11 14:20:03,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:20:03,117 INFO L480 AbstractCegarLoop]: Abstraction has 3131 states and 15607 transitions. [2021-03-11 14:20:03,117 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:03,117 INFO L276 IsEmpty]: Start isEmpty. Operand 3131 states and 15607 transitions. [2021-03-11 14:20:03,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:20:03,122 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:20:03,122 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:20:03,122 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable281 [2021-03-11 14:20:03,123 INFO L428 AbstractCegarLoop]: === Iteration 283 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:20:03,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:20:03,123 INFO L82 PathProgramCache]: Analyzing trace with hash 338357867, now seen corresponding path program 274 times [2021-03-11 14:20:03,123 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:20:03,123 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1871582232] [2021-03-11 14:20:03,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:20:03,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:20:03,135 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:20:03,135 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:20:03,136 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:20:03,137 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:20:03,142 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:20:03,142 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:20:03,151 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:20:03,152 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:20:03,166 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:20:03,166 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:20:03,185 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:20:03,185 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:20:03,209 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:20:03,209 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:20:03,256 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:20:03,257 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:20:03,311 INFO L142 QuantifierPusher]: treesize reduction 54, result has 55.4 percent of original size [2021-03-11 14:20:03,312 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-03-11 14:20:03,380 INFO L142 QuantifierPusher]: treesize reduction 72, result has 49.7 percent of original size [2021-03-11 14:20:03,381 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-03-11 14:20:03,430 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:20:03,431 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:20:03,476 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:20:03,476 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1871582232] [2021-03-11 14:20:03,476 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:20:03,476 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:20:03,476 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [725536391] [2021-03-11 14:20:03,477 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:20:03,477 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:20:03,477 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:20:03,477 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:20:03,477 INFO L87 Difference]: Start difference. First operand 3131 states and 15607 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:03,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:20:03,639 INFO L93 Difference]: Finished difference Result 6034 states and 26852 transitions. [2021-03-11 14:20:03,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:20:03,640 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:20:03,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:20:03,654 INFO L225 Difference]: With dead ends: 6034 [2021-03-11 14:20:03,654 INFO L226 Difference]: Without dead ends: 6006 [2021-03-11 14:20:03,654 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 364.0ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:20:03,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6006 states. [2021-03-11 14:20:03,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6006 to 3125. [2021-03-11 14:20:03,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3125 states, 3124 states have (on average 4.990396927016645) internal successors, (15590), 3124 states have internal predecessors, (15590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:03,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3125 states to 3125 states and 15590 transitions. [2021-03-11 14:20:03,799 INFO L78 Accepts]: Start accepts. Automaton has 3125 states and 15590 transitions. Word has length 31 [2021-03-11 14:20:03,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:20:03,799 INFO L480 AbstractCegarLoop]: Abstraction has 3125 states and 15590 transitions. [2021-03-11 14:20:03,799 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:03,799 INFO L276 IsEmpty]: Start isEmpty. Operand 3125 states and 15590 transitions. [2021-03-11 14:20:03,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:20:03,804 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:20:03,804 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:20:03,804 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable282 [2021-03-11 14:20:03,804 INFO L428 AbstractCegarLoop]: === Iteration 284 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:20:03,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:20:03,804 INFO L82 PathProgramCache]: Analyzing trace with hash -1423520583, now seen corresponding path program 275 times [2021-03-11 14:20:03,804 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:20:03,804 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1027787824] [2021-03-11 14:20:03,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:20:03,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:20:03,816 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:20:03,816 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:20:03,817 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:20:03,817 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:20:03,822 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:20:03,822 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:20:03,831 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:20:03,832 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:20:03,845 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:20:03,845 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:20:03,863 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:20:03,863 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:20:03,885 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:20:03,886 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:20:03,931 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:20:03,931 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:20:03,986 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:20:03,986 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:20:04,028 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:20:04,029 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:20:04,079 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:20:04,079 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:20:04,124 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:20:04,124 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1027787824] [2021-03-11 14:20:04,124 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:20:04,124 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:20:04,124 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2048682793] [2021-03-11 14:20:04,124 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:20:04,124 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:20:04,124 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:20:04,124 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:20:04,125 INFO L87 Difference]: Start difference. First operand 3125 states and 15590 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:04,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:20:04,320 INFO L93 Difference]: Finished difference Result 6041 states and 26869 transitions. [2021-03-11 14:20:04,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:20:04,321 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:20:04,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:20:04,334 INFO L225 Difference]: With dead ends: 6041 [2021-03-11 14:20:04,335 INFO L226 Difference]: Without dead ends: 6021 [2021-03-11 14:20:04,335 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 369.9ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:20:04,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6021 states. [2021-03-11 14:20:04,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6021 to 3136. [2021-03-11 14:20:04,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3136 states, 3135 states have (on average 4.979266347687401) internal successors, (15610), 3135 states have internal predecessors, (15610), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:04,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3136 states to 3136 states and 15610 transitions. [2021-03-11 14:20:04,473 INFO L78 Accepts]: Start accepts. Automaton has 3136 states and 15610 transitions. Word has length 31 [2021-03-11 14:20:04,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:20:04,473 INFO L480 AbstractCegarLoop]: Abstraction has 3136 states and 15610 transitions. [2021-03-11 14:20:04,473 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:04,473 INFO L276 IsEmpty]: Start isEmpty. Operand 3136 states and 15610 transitions. [2021-03-11 14:20:04,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:20:04,478 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:20:04,478 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:20:04,478 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable283 [2021-03-11 14:20:04,478 INFO L428 AbstractCegarLoop]: === Iteration 285 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:20:04,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:20:04,478 INFO L82 PathProgramCache]: Analyzing trace with hash -85953369, now seen corresponding path program 276 times [2021-03-11 14:20:04,478 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:20:04,478 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [543893216] [2021-03-11 14:20:04,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:20:04,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:20:04,490 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:20:04,490 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:20:04,491 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:20:04,491 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:20:04,496 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:20:04,496 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:20:04,505 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:20:04,506 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:20:04,519 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:20:04,519 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:20:04,538 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:20:04,539 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:20:04,563 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:20:04,564 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:20:04,610 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:20:04,611 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:20:04,665 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:20:04,666 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:20:04,708 INFO L142 QuantifierPusher]: treesize reduction 72, result has 49.7 percent of original size [2021-03-11 14:20:04,709 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-03-11 14:20:04,758 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:20:04,759 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:20:04,802 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:20:04,802 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [543893216] [2021-03-11 14:20:04,802 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:20:04,802 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:20:04,802 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [543601364] [2021-03-11 14:20:04,802 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:20:04,803 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:20:04,803 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:20:04,803 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:20:04,803 INFO L87 Difference]: Start difference. First operand 3136 states and 15610 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:04,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:20:04,971 INFO L93 Difference]: Finished difference Result 6043 states and 26863 transitions. [2021-03-11 14:20:04,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:20:04,972 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:20:04,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:20:04,986 INFO L225 Difference]: With dead ends: 6043 [2021-03-11 14:20:04,986 INFO L226 Difference]: Without dead ends: 6003 [2021-03-11 14:20:04,986 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 340.4ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:20:05,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6003 states. [2021-03-11 14:20:05,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6003 to 3118. [2021-03-11 14:20:05,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3118 states, 3117 states have (on average 4.995187680461982) internal successors, (15570), 3117 states have internal predecessors, (15570), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:05,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3118 states to 3118 states and 15570 transitions. [2021-03-11 14:20:05,124 INFO L78 Accepts]: Start accepts. Automaton has 3118 states and 15570 transitions. Word has length 31 [2021-03-11 14:20:05,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:20:05,124 INFO L480 AbstractCegarLoop]: Abstraction has 3118 states and 15570 transitions. [2021-03-11 14:20:05,124 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:05,124 INFO L276 IsEmpty]: Start isEmpty. Operand 3118 states and 15570 transitions. [2021-03-11 14:20:05,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:20:05,129 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:20:05,129 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:20:05,129 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable284 [2021-03-11 14:20:05,129 INFO L428 AbstractCegarLoop]: === Iteration 286 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:20:05,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:20:05,130 INFO L82 PathProgramCache]: Analyzing trace with hash 637793767, now seen corresponding path program 277 times [2021-03-11 14:20:05,130 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:20:05,130 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1247879566] [2021-03-11 14:20:05,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:20:05,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:20:05,141 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:20:05,142 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:20:05,142 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:20:05,142 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:20:05,147 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:20:05,148 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:20:05,156 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:20:05,157 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:20:05,170 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:20:05,170 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:20:05,188 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:20:05,188 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:20:05,211 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:20:05,212 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:20:05,263 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:20:05,264 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:20:05,322 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:20:05,322 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:20:05,363 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:20:05,364 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:20:05,411 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:20:05,412 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:20:05,454 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:20:05,455 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1247879566] [2021-03-11 14:20:05,455 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:20:05,455 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:20:05,455 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [680685806] [2021-03-11 14:20:05,455 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:20:05,455 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:20:05,455 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:20:05,455 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:20:05,455 INFO L87 Difference]: Start difference. First operand 3118 states and 15570 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:05,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:20:05,710 INFO L93 Difference]: Finished difference Result 6014 states and 26815 transitions. [2021-03-11 14:20:05,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:20:05,711 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:20:05,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:20:05,724 INFO L225 Difference]: With dead ends: 6014 [2021-03-11 14:20:05,724 INFO L226 Difference]: Without dead ends: 5998 [2021-03-11 14:20:05,724 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 370.1ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:20:05,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5998 states. [2021-03-11 14:20:05,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5998 to 3129. [2021-03-11 14:20:05,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3129 states, 3128 states have (on average 4.987531969309463) internal successors, (15601), 3128 states have internal predecessors, (15601), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:05,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3129 states to 3129 states and 15601 transitions. [2021-03-11 14:20:05,862 INFO L78 Accepts]: Start accepts. Automaton has 3129 states and 15601 transitions. Word has length 31 [2021-03-11 14:20:05,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:20:05,862 INFO L480 AbstractCegarLoop]: Abstraction has 3129 states and 15601 transitions. [2021-03-11 14:20:05,862 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:05,862 INFO L276 IsEmpty]: Start isEmpty. Operand 3129 states and 15601 transitions. [2021-03-11 14:20:05,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:20:05,867 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:20:05,867 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:20:05,867 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable285 [2021-03-11 14:20:05,867 INFO L428 AbstractCegarLoop]: === Iteration 287 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:20:05,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:20:05,867 INFO L82 PathProgramCache]: Analyzing trace with hash -1052149137, now seen corresponding path program 278 times [2021-03-11 14:20:05,867 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:20:05,867 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1342102405] [2021-03-11 14:20:05,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:20:05,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:20:05,879 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:20:05,879 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:20:05,880 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:20:05,880 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:20:05,885 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:20:05,885 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:20:05,894 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:20:05,894 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:20:05,907 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:20:05,907 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:20:05,925 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:20:05,925 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:20:05,947 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:20:05,948 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:20:05,993 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:20:05,993 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:20:06,050 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:20:06,051 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:20:06,092 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:20:06,093 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:20:06,142 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:20:06,142 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:20:06,191 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:20:06,191 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1342102405] [2021-03-11 14:20:06,191 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:20:06,191 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:20:06,191 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [386323538] [2021-03-11 14:20:06,191 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:20:06,191 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:20:06,192 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:20:06,192 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:20:06,192 INFO L87 Difference]: Start difference. First operand 3129 states and 15601 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:06,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:20:06,391 INFO L93 Difference]: Finished difference Result 6015 states and 26812 transitions. [2021-03-11 14:20:06,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:20:06,392 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:20:06,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:20:06,405 INFO L225 Difference]: With dead ends: 6015 [2021-03-11 14:20:06,405 INFO L226 Difference]: Without dead ends: 5993 [2021-03-11 14:20:06,405 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 365.5ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:20:06,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5993 states. [2021-03-11 14:20:06,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5993 to 3124. [2021-03-11 14:20:06,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3124 states, 3123 states have (on average 4.991034261927633) internal successors, (15587), 3123 states have internal predecessors, (15587), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:06,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3124 states to 3124 states and 15587 transitions. [2021-03-11 14:20:06,540 INFO L78 Accepts]: Start accepts. Automaton has 3124 states and 15587 transitions. Word has length 31 [2021-03-11 14:20:06,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:20:06,540 INFO L480 AbstractCegarLoop]: Abstraction has 3124 states and 15587 transitions. [2021-03-11 14:20:06,540 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:06,540 INFO L276 IsEmpty]: Start isEmpty. Operand 3124 states and 15587 transitions. [2021-03-11 14:20:06,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:20:06,545 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:20:06,545 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:20:06,545 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable286 [2021-03-11 14:20:06,545 INFO L428 AbstractCegarLoop]: === Iteration 288 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:20:06,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:20:06,545 INFO L82 PathProgramCache]: Analyzing trace with hash -422984323, now seen corresponding path program 279 times [2021-03-11 14:20:06,546 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:20:06,546 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [975350438] [2021-03-11 14:20:06,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:20:06,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:20:06,567 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:20:06,568 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:20:06,568 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:20:06,569 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:20:06,574 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:20:06,575 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:20:06,584 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:20:06,584 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:20:06,597 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:20:06,598 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:20:06,615 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:20:06,616 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:20:06,638 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:20:06,639 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:20:06,684 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:20:06,684 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:20:06,740 INFO L142 QuantifierPusher]: treesize reduction 54, result has 55.4 percent of original size [2021-03-11 14:20:06,741 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-03-11 14:20:06,808 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:20:06,809 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:20:06,855 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:20:06,856 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:20:06,898 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:20:06,898 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [975350438] [2021-03-11 14:20:06,898 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:20:06,899 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:20:06,899 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [738561955] [2021-03-11 14:20:06,899 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:20:06,899 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:20:06,899 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:20:06,899 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:20:06,899 INFO L87 Difference]: Start difference. First operand 3124 states and 15587 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:07,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:20:07,107 INFO L93 Difference]: Finished difference Result 6020 states and 26821 transitions. [2021-03-11 14:20:07,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:20:07,107 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:20:07,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:20:07,120 INFO L225 Difference]: With dead ends: 6020 [2021-03-11 14:20:07,120 INFO L226 Difference]: Without dead ends: 6004 [2021-03-11 14:20:07,120 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 387.7ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:20:07,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6004 states. [2021-03-11 14:20:07,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6004 to 3130. [2021-03-11 14:20:07,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3130 states, 3129 states have (on average 4.984979226589965) internal successors, (15598), 3129 states have internal predecessors, (15598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:07,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3130 states to 3130 states and 15598 transitions. [2021-03-11 14:20:07,255 INFO L78 Accepts]: Start accepts. Automaton has 3130 states and 15598 transitions. Word has length 31 [2021-03-11 14:20:07,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:20:07,255 INFO L480 AbstractCegarLoop]: Abstraction has 3130 states and 15598 transitions. [2021-03-11 14:20:07,255 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:07,256 INFO L276 IsEmpty]: Start isEmpty. Operand 3130 states and 15598 transitions. [2021-03-11 14:20:07,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:20:07,260 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:20:07,260 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:20:07,260 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable287 [2021-03-11 14:20:07,260 INFO L428 AbstractCegarLoop]: === Iteration 289 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:20:07,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:20:07,261 INFO L82 PathProgramCache]: Analyzing trace with hash 69611439, now seen corresponding path program 280 times [2021-03-11 14:20:07,261 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:20:07,261 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [427085211] [2021-03-11 14:20:07,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:20:07,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:20:07,272 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:20:07,273 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:20:07,273 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:20:07,273 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:20:07,278 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:20:07,279 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:20:07,287 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:20:07,288 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:20:07,301 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:20:07,301 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:20:07,322 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:20:07,323 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:20:07,349 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:20:07,349 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:20:07,399 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:20:07,399 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:20:07,459 INFO L142 QuantifierPusher]: treesize reduction 54, result has 55.4 percent of original size [2021-03-11 14:20:07,459 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-03-11 14:20:07,529 INFO L142 QuantifierPusher]: treesize reduction 72, result has 49.7 percent of original size [2021-03-11 14:20:07,530 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-03-11 14:20:07,584 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:20:07,585 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:20:07,631 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:20:07,631 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [427085211] [2021-03-11 14:20:07,631 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:20:07,632 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:20:07,632 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [199029244] [2021-03-11 14:20:07,632 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:20:07,632 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:20:07,632 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:20:07,632 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:20:07,632 INFO L87 Difference]: Start difference. First operand 3130 states and 15598 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:07,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:20:07,811 INFO L93 Difference]: Finished difference Result 6026 states and 26827 transitions. [2021-03-11 14:20:07,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:20:07,812 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:20:07,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:20:07,825 INFO L225 Difference]: With dead ends: 6026 [2021-03-11 14:20:07,825 INFO L226 Difference]: Without dead ends: 5998 [2021-03-11 14:20:07,825 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 387.1ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:20:07,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5998 states. [2021-03-11 14:20:07,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5998 to 3124. [2021-03-11 14:20:07,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3124 states, 3123 states have (on average 4.989113032340698) internal successors, (15581), 3123 states have internal predecessors, (15581), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:07,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3124 states to 3124 states and 15581 transitions. [2021-03-11 14:20:07,966 INFO L78 Accepts]: Start accepts. Automaton has 3124 states and 15581 transitions. Word has length 31 [2021-03-11 14:20:07,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:20:07,966 INFO L480 AbstractCegarLoop]: Abstraction has 3124 states and 15581 transitions. [2021-03-11 14:20:07,966 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:07,966 INFO L276 IsEmpty]: Start isEmpty. Operand 3124 states and 15581 transitions. [2021-03-11 14:20:07,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:20:07,971 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:20:07,971 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:20:07,971 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable288 [2021-03-11 14:20:07,971 INFO L428 AbstractCegarLoop]: === Iteration 290 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:20:07,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:20:07,971 INFO L82 PathProgramCache]: Analyzing trace with hash 1333417597, now seen corresponding path program 281 times [2021-03-11 14:20:07,971 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:20:07,971 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1580153115] [2021-03-11 14:20:07,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:20:07,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:20:07,983 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:20:07,984 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:20:07,984 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:20:07,984 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:20:07,990 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:20:07,991 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:20:08,000 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:20:08,000 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:20:08,013 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:20:08,014 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:20:08,032 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:20:08,032 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:20:08,055 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:20:08,055 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:20:08,106 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:20:08,107 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:20:08,164 INFO L142 QuantifierPusher]: treesize reduction 54, result has 55.4 percent of original size [2021-03-11 14:20:08,165 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-03-11 14:20:08,233 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:20:08,233 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:20:08,283 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:20:08,284 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:20:08,333 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:20:08,334 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1580153115] [2021-03-11 14:20:08,334 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:20:08,334 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:20:08,334 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [486929249] [2021-03-11 14:20:08,334 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:20:08,334 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:20:08,334 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:20:08,334 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:20:08,334 INFO L87 Difference]: Start difference. First operand 3124 states and 15581 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:08,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:20:08,524 INFO L93 Difference]: Finished difference Result 6023 states and 26822 transitions. [2021-03-11 14:20:08,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:20:08,525 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:20:08,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:20:08,537 INFO L225 Difference]: With dead ends: 6023 [2021-03-11 14:20:08,537 INFO L226 Difference]: Without dead ends: 6006 [2021-03-11 14:20:08,537 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 403.4ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:20:08,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6006 states. [2021-03-11 14:20:08,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6006 to 3131. [2021-03-11 14:20:08,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3131 states, 3130 states have (on average 4.982108626198083) internal successors, (15594), 3130 states have internal predecessors, (15594), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:08,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3131 states to 3131 states and 15594 transitions. [2021-03-11 14:20:08,723 INFO L78 Accepts]: Start accepts. Automaton has 3131 states and 15594 transitions. Word has length 31 [2021-03-11 14:20:08,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:20:08,723 INFO L480 AbstractCegarLoop]: Abstraction has 3131 states and 15594 transitions. [2021-03-11 14:20:08,723 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:08,723 INFO L276 IsEmpty]: Start isEmpty. Operand 3131 states and 15594 transitions. [2021-03-11 14:20:08,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:20:08,729 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:20:08,729 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:20:08,729 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable289 [2021-03-11 14:20:08,729 INFO L428 AbstractCegarLoop]: === Iteration 291 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:20:08,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:20:08,730 INFO L82 PathProgramCache]: Analyzing trace with hash -779011033, now seen corresponding path program 282 times [2021-03-11 14:20:08,730 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:20:08,730 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1929596904] [2021-03-11 14:20:08,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:20:08,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:20:08,741 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:20:08,742 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:20:08,742 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:20:08,742 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:20:08,747 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:20:08,748 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:20:08,756 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:20:08,756 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:20:08,769 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:20:08,769 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:20:08,786 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:20:08,787 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:20:08,808 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:20:08,809 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:20:08,853 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:20:08,854 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:20:08,910 INFO L142 QuantifierPusher]: treesize reduction 54, result has 55.4 percent of original size [2021-03-11 14:20:08,910 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-03-11 14:20:08,981 INFO L142 QuantifierPusher]: treesize reduction 72, result has 49.7 percent of original size [2021-03-11 14:20:08,982 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-03-11 14:20:09,030 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:20:09,030 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:20:09,074 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:20:09,074 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1929596904] [2021-03-11 14:20:09,074 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:20:09,074 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:20:09,074 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [578778110] [2021-03-11 14:20:09,074 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:20:09,074 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:20:09,074 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:20:09,074 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:20:09,075 INFO L87 Difference]: Start difference. First operand 3131 states and 15594 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:09,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:20:09,249 INFO L93 Difference]: Finished difference Result 6028 states and 26825 transitions. [2021-03-11 14:20:09,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:20:09,250 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:20:09,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:20:09,263 INFO L225 Difference]: With dead ends: 6028 [2021-03-11 14:20:09,263 INFO L226 Difference]: Without dead ends: 5993 [2021-03-11 14:20:09,263 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 353.7ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:20:09,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5993 states. [2021-03-11 14:20:09,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5993 to 3118. [2021-03-11 14:20:09,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3118 states, 3117 states have (on average 4.993262752646776) internal successors, (15564), 3117 states have internal predecessors, (15564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:09,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3118 states to 3118 states and 15564 transitions. [2021-03-11 14:20:09,406 INFO L78 Accepts]: Start accepts. Automaton has 3118 states and 15564 transitions. Word has length 31 [2021-03-11 14:20:09,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:20:09,407 INFO L480 AbstractCegarLoop]: Abstraction has 3118 states and 15564 transitions. [2021-03-11 14:20:09,407 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:09,407 INFO L276 IsEmpty]: Start isEmpty. Operand 3118 states and 15564 transitions. [2021-03-11 14:20:09,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:20:09,411 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:20:09,411 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:20:09,411 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable290 [2021-03-11 14:20:09,412 INFO L428 AbstractCegarLoop]: === Iteration 292 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:20:09,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:20:09,412 INFO L82 PathProgramCache]: Analyzing trace with hash -900235349, now seen corresponding path program 283 times [2021-03-11 14:20:09,412 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:20:09,412 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [174047714] [2021-03-11 14:20:09,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:20:09,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:20:09,423 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:20:09,424 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:20:09,424 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:20:09,424 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:20:09,429 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:20:09,429 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:20:09,438 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:20:09,438 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:20:09,451 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:20:09,451 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:20:09,469 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:20:09,470 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:20:09,491 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:20:09,492 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:20:09,536 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:20:09,536 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:20:09,590 INFO L142 QuantifierPusher]: treesize reduction 45, result has 59.1 percent of original size [2021-03-11 14:20:09,590 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:20:09,653 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:20:09,653 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:20:09,699 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:20:09,699 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:20:09,740 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:20:09,741 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [174047714] [2021-03-11 14:20:09,741 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:20:09,741 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:20:09,741 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [81076784] [2021-03-11 14:20:09,741 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:20:09,741 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:20:09,741 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:20:09,741 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:20:09,741 INFO L87 Difference]: Start difference. First operand 3118 states and 15564 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:09,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:20:09,935 INFO L93 Difference]: Finished difference Result 6035 states and 26858 transitions. [2021-03-11 14:20:09,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:20:09,936 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:20:09,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:20:09,950 INFO L225 Difference]: With dead ends: 6035 [2021-03-11 14:20:09,950 INFO L226 Difference]: Without dead ends: 6015 [2021-03-11 14:20:09,950 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 378.3ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:20:10,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6015 states. [2021-03-11 14:20:10,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6015 to 3132. [2021-03-11 14:20:10,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3132 states, 3131 states have (on average 4.983391887575855) internal successors, (15603), 3131 states have internal predecessors, (15603), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:10,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3132 states to 3132 states and 15603 transitions. [2021-03-11 14:20:10,089 INFO L78 Accepts]: Start accepts. Automaton has 3132 states and 15603 transitions. Word has length 31 [2021-03-11 14:20:10,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:20:10,089 INFO L480 AbstractCegarLoop]: Abstraction has 3132 states and 15603 transitions. [2021-03-11 14:20:10,089 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:10,089 INFO L276 IsEmpty]: Start isEmpty. Operand 3132 states and 15603 transitions. [2021-03-11 14:20:10,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:20:10,094 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:20:10,094 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:20:10,094 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable291 [2021-03-11 14:20:10,094 INFO L428 AbstractCegarLoop]: === Iteration 293 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:20:10,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:20:10,095 INFO L82 PathProgramCache]: Analyzing trace with hash -1745206801, now seen corresponding path program 284 times [2021-03-11 14:20:10,095 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:20:10,095 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [669659787] [2021-03-11 14:20:10,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:20:10,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:20:10,111 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:20:10,112 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:20:10,112 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:20:10,113 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:20:10,118 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:20:10,119 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:20:10,128 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:20:10,128 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:20:10,141 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:20:10,141 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:20:10,159 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:20:10,160 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:20:10,181 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:20:10,182 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:20:10,227 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:20:10,228 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:20:10,283 INFO L142 QuantifierPusher]: treesize reduction 45, result has 59.1 percent of original size [2021-03-11 14:20:10,284 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:20:10,347 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:20:10,348 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:20:10,394 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:20:10,395 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:20:10,436 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:20:10,436 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [669659787] [2021-03-11 14:20:10,436 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:20:10,436 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:20:10,437 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2050681536] [2021-03-11 14:20:10,437 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:20:10,437 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:20:10,437 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:20:10,437 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:20:10,437 INFO L87 Difference]: Start difference. First operand 3132 states and 15603 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:10,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:20:10,645 INFO L93 Difference]: Finished difference Result 6032 states and 26846 transitions. [2021-03-11 14:20:10,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:20:10,645 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:20:10,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:20:10,658 INFO L225 Difference]: With dead ends: 6032 [2021-03-11 14:20:10,658 INFO L226 Difference]: Without dead ends: 6009 [2021-03-11 14:20:10,659 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 376.9ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:20:10,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6009 states. [2021-03-11 14:20:10,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6009 to 3126. [2021-03-11 14:20:10,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3126 states, 3125 states have (on average 4.98752) internal successors, (15586), 3125 states have internal predecessors, (15586), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:10,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3126 states to 3126 states and 15586 transitions. [2021-03-11 14:20:10,797 INFO L78 Accepts]: Start accepts. Automaton has 3126 states and 15586 transitions. Word has length 31 [2021-03-11 14:20:10,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:20:10,797 INFO L480 AbstractCegarLoop]: Abstraction has 3126 states and 15586 transitions. [2021-03-11 14:20:10,797 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:10,797 INFO L276 IsEmpty]: Start isEmpty. Operand 3126 states and 15586 transitions. [2021-03-11 14:20:10,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:20:10,802 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:20:10,802 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:20:10,802 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable292 [2021-03-11 14:20:10,802 INFO L428 AbstractCegarLoop]: === Iteration 294 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:20:10,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:20:10,802 INFO L82 PathProgramCache]: Analyzing trace with hash -1961013439, now seen corresponding path program 285 times [2021-03-11 14:20:10,802 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:20:10,803 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [89417905] [2021-03-11 14:20:10,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:20:10,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:20:10,814 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:20:10,815 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:20:10,815 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:20:10,815 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:20:10,820 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:20:10,820 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:20:10,829 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:20:10,829 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:20:10,842 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:20:10,842 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:20:10,860 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:20:10,860 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:20:10,881 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:20:10,882 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:20:10,928 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:20:10,929 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:20:10,985 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:20:10,985 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:20:11,026 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:20:11,026 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:20:11,072 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:20:11,073 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:20:11,114 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:20:11,114 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [89417905] [2021-03-11 14:20:11,114 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:20:11,114 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:20:11,114 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286562593] [2021-03-11 14:20:11,114 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:20:11,114 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:20:11,114 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:20:11,114 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:20:11,114 INFO L87 Difference]: Start difference. First operand 3126 states and 15586 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:11,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:20:11,310 INFO L93 Difference]: Finished difference Result 6045 states and 26873 transitions. [2021-03-11 14:20:11,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:20:11,311 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:20:11,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:20:11,324 INFO L225 Difference]: With dead ends: 6045 [2021-03-11 14:20:11,325 INFO L226 Difference]: Without dead ends: 6025 [2021-03-11 14:20:11,325 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 359.6ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:20:11,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6025 states. [2021-03-11 14:20:11,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6025 to 3137. [2021-03-11 14:20:11,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3137 states, 3136 states have (on average 4.97640306122449) internal successors, (15606), 3136 states have internal predecessors, (15606), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:11,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3137 states to 3137 states and 15606 transitions. [2021-03-11 14:20:11,461 INFO L78 Accepts]: Start accepts. Automaton has 3137 states and 15606 transitions. Word has length 31 [2021-03-11 14:20:11,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:20:11,461 INFO L480 AbstractCegarLoop]: Abstraction has 3137 states and 15606 transitions. [2021-03-11 14:20:11,461 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:11,461 INFO L276 IsEmpty]: Start isEmpty. Operand 3137 states and 15606 transitions. [2021-03-11 14:20:11,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:20:11,466 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:20:11,466 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:20:11,466 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable293 [2021-03-11 14:20:11,466 INFO L428 AbstractCegarLoop]: === Iteration 295 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:20:11,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:20:11,466 INFO L82 PathProgramCache]: Analyzing trace with hash -623446225, now seen corresponding path program 286 times [2021-03-11 14:20:11,466 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:20:11,466 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [446302793] [2021-03-11 14:20:11,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:20:11,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:20:11,478 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:20:11,478 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:20:11,479 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:20:11,479 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:20:11,484 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:20:11,484 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:20:11,492 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:20:11,493 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:20:11,505 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:20:11,506 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:20:11,523 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:20:11,523 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:20:11,545 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:20:11,545 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:20:11,589 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:20:11,590 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:20:11,644 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:20:11,644 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:20:11,684 INFO L142 QuantifierPusher]: treesize reduction 72, result has 49.7 percent of original size [2021-03-11 14:20:11,684 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-03-11 14:20:11,731 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:20:11,731 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:20:11,772 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:20:11,773 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [446302793] [2021-03-11 14:20:11,773 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:20:11,773 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:20:11,773 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1997876346] [2021-03-11 14:20:11,773 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:20:11,773 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:20:11,773 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:20:11,773 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:20:11,773 INFO L87 Difference]: Start difference. First operand 3137 states and 15606 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:11,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:20:11,940 INFO L93 Difference]: Finished difference Result 6047 states and 26867 transitions. [2021-03-11 14:20:11,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:20:11,941 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:20:11,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:20:11,954 INFO L225 Difference]: With dead ends: 6047 [2021-03-11 14:20:11,954 INFO L226 Difference]: Without dead ends: 6014 [2021-03-11 14:20:11,954 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 322.0ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:20:12,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6014 states. [2021-03-11 14:20:12,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6014 to 3126. [2021-03-11 14:20:12,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3126 states, 3125 states have (on average 4.98496) internal successors, (15578), 3125 states have internal predecessors, (15578), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:12,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3126 states to 3126 states and 15578 transitions. [2021-03-11 14:20:12,091 INFO L78 Accepts]: Start accepts. Automaton has 3126 states and 15578 transitions. Word has length 31 [2021-03-11 14:20:12,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:20:12,091 INFO L480 AbstractCegarLoop]: Abstraction has 3126 states and 15578 transitions. [2021-03-11 14:20:12,091 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:12,091 INFO L276 IsEmpty]: Start isEmpty. Operand 3126 states and 15578 transitions. [2021-03-11 14:20:12,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:20:12,096 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:20:12,096 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:20:12,096 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable294 [2021-03-11 14:20:12,096 INFO L428 AbstractCegarLoop]: === Iteration 296 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:20:12,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:20:12,096 INFO L82 PathProgramCache]: Analyzing trace with hash 1064671169, now seen corresponding path program 287 times [2021-03-11 14:20:12,096 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:20:12,096 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1129329784] [2021-03-11 14:20:12,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:20:12,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:20:12,108 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:20:12,108 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:20:12,109 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:20:12,109 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:20:12,114 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:20:12,114 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:20:12,123 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:20:12,123 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:20:12,136 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:20:12,136 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:20:12,153 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:20:12,154 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:20:12,175 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:20:12,176 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:20:12,220 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:20:12,220 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:20:12,274 INFO L142 QuantifierPusher]: treesize reduction 54, result has 55.4 percent of original size [2021-03-11 14:20:12,274 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-03-11 14:20:12,340 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:20:12,340 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:20:12,386 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:20:12,386 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:20:12,429 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:20:12,429 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1129329784] [2021-03-11 14:20:12,429 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:20:12,429 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:20:12,429 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1329058506] [2021-03-11 14:20:12,429 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:20:12,429 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:20:12,430 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:20:12,430 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:20:12,430 INFO L87 Difference]: Start difference. First operand 3126 states and 15578 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:12,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:20:12,641 INFO L93 Difference]: Finished difference Result 6035 states and 26843 transitions. [2021-03-11 14:20:12,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:20:12,641 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:20:12,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:20:12,654 INFO L225 Difference]: With dead ends: 6035 [2021-03-11 14:20:12,655 INFO L226 Difference]: Without dead ends: 6018 [2021-03-11 14:20:12,655 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 374.4ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:20:12,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6018 states. [2021-03-11 14:20:12,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6018 to 3133. [2021-03-11 14:20:12,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3133 states, 3132 states have (on average 4.977969348659004) internal successors, (15591), 3132 states have internal predecessors, (15591), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:12,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3133 states to 3133 states and 15591 transitions. [2021-03-11 14:20:12,796 INFO L78 Accepts]: Start accepts. Automaton has 3133 states and 15591 transitions. Word has length 31 [2021-03-11 14:20:12,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:20:12,796 INFO L480 AbstractCegarLoop]: Abstraction has 3133 states and 15591 transitions. [2021-03-11 14:20:12,796 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:12,796 INFO L276 IsEmpty]: Start isEmpty. Operand 3133 states and 15591 transitions. [2021-03-11 14:20:12,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:20:12,801 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:20:12,801 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:20:12,801 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable295 [2021-03-11 14:20:12,801 INFO L428 AbstractCegarLoop]: === Iteration 297 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:20:12,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:20:12,801 INFO L82 PathProgramCache]: Analyzing trace with hash -1047757461, now seen corresponding path program 288 times [2021-03-11 14:20:12,801 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:20:12,801 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1192072617] [2021-03-11 14:20:12,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:20:12,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:20:12,813 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:20:12,813 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:20:12,813 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:20:12,814 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:20:12,819 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:20:12,819 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:20:12,828 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:20:12,828 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:20:12,841 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:20:12,841 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:20:12,859 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:20:12,859 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:20:12,881 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:20:12,882 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:20:12,926 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:20:12,927 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:20:12,983 INFO L142 QuantifierPusher]: treesize reduction 54, result has 55.4 percent of original size [2021-03-11 14:20:12,984 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-03-11 14:20:13,057 INFO L142 QuantifierPusher]: treesize reduction 72, result has 49.7 percent of original size [2021-03-11 14:20:13,057 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-03-11 14:20:13,105 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:20:13,105 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:20:13,148 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:20:13,148 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1192072617] [2021-03-11 14:20:13,148 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:20:13,148 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:20:13,148 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1843155641] [2021-03-11 14:20:13,149 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:20:13,149 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:20:13,149 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:20:13,149 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:20:13,149 INFO L87 Difference]: Start difference. First operand 3133 states and 15591 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:13,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:20:13,331 INFO L93 Difference]: Finished difference Result 6040 states and 26846 transitions. [2021-03-11 14:20:13,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:20:13,332 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:20:13,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:20:13,346 INFO L225 Difference]: With dead ends: 6040 [2021-03-11 14:20:13,346 INFO L226 Difference]: Without dead ends: 5996 [2021-03-11 14:20:13,346 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 358.4ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:20:13,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5996 states. [2021-03-11 14:20:13,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5996 to 3111. [2021-03-11 14:20:13,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3111 states, 3110 states have (on average 4.998070739549839) internal successors, (15544), 3110 states have internal predecessors, (15544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:13,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3111 states to 3111 states and 15544 transitions. [2021-03-11 14:20:13,482 INFO L78 Accepts]: Start accepts. Automaton has 3111 states and 15544 transitions. Word has length 31 [2021-03-11 14:20:13,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:20:13,482 INFO L480 AbstractCegarLoop]: Abstraction has 3111 states and 15544 transitions. [2021-03-11 14:20:13,482 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:13,482 INFO L276 IsEmpty]: Start isEmpty. Operand 3111 states and 15544 transitions. [2021-03-11 14:20:13,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:20:13,487 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:20:13,487 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:20:13,487 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable296 [2021-03-11 14:20:13,487 INFO L428 AbstractCegarLoop]: === Iteration 298 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:20:13,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:20:13,488 INFO L82 PathProgramCache]: Analyzing trace with hash -154717251, now seen corresponding path program 289 times [2021-03-11 14:20:13,488 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:20:13,488 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [57349822] [2021-03-11 14:20:13,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:20:13,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:20:13,504 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:20:13,505 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:20:13,505 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:20:13,506 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:20:13,511 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:20:13,512 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:20:13,520 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:20:13,520 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:20:13,533 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:20:13,533 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:20:13,551 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:20:13,551 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:20:13,573 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:20:13,573 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:20:13,599 INFO L142 QuantifierPusher]: treesize reduction 27, result has 64.5 percent of original size [2021-03-11 14:20:13,600 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 14:20:13,631 INFO L142 QuantifierPusher]: treesize reduction 45, result has 59.1 percent of original size [2021-03-11 14:20:13,631 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:20:13,691 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:20:13,692 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:20:13,738 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:20:13,739 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:20:13,785 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:20:13,785 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [57349822] [2021-03-11 14:20:13,785 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:20:13,785 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:20:13,785 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1677227348] [2021-03-11 14:20:13,785 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:20:13,785 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:20:13,786 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:20:13,786 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:20:13,786 INFO L87 Difference]: Start difference. First operand 3111 states and 15544 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:14,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:20:14,085 INFO L93 Difference]: Finished difference Result 6018 states and 26833 transitions. [2021-03-11 14:20:14,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:20:14,086 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:20:14,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:20:14,099 INFO L225 Difference]: With dead ends: 6018 [2021-03-11 14:20:14,099 INFO L226 Difference]: Without dead ends: 6002 [2021-03-11 14:20:14,099 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 334.0ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:20:14,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6002 states. [2021-03-11 14:20:14,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6002 to 3128. [2021-03-11 14:20:14,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3128 states, 3127 states have (on average 4.989766549408379) internal successors, (15603), 3127 states have internal predecessors, (15603), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:14,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3128 states to 3128 states and 15603 transitions. [2021-03-11 14:20:14,233 INFO L78 Accepts]: Start accepts. Automaton has 3128 states and 15603 transitions. Word has length 31 [2021-03-11 14:20:14,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:20:14,234 INFO L480 AbstractCegarLoop]: Abstraction has 3128 states and 15603 transitions. [2021-03-11 14:20:14,234 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:14,234 INFO L276 IsEmpty]: Start isEmpty. Operand 3128 states and 15603 transitions. [2021-03-11 14:20:14,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:20:14,238 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:20:14,238 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:20:14,238 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable297 [2021-03-11 14:20:14,238 INFO L428 AbstractCegarLoop]: === Iteration 299 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:20:14,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:20:14,239 INFO L82 PathProgramCache]: Analyzing trace with hash -999688703, now seen corresponding path program 290 times [2021-03-11 14:20:14,239 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:20:14,239 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1392856049] [2021-03-11 14:20:14,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:20:14,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:20:14,250 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:20:14,250 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:20:14,251 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:20:14,251 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:20:14,256 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:20:14,256 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:20:14,265 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:20:14,265 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:20:14,278 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:20:14,278 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:20:14,295 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:20:14,296 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:20:14,317 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:20:14,318 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:20:14,344 INFO L142 QuantifierPusher]: treesize reduction 27, result has 64.5 percent of original size [2021-03-11 14:20:14,344 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 14:20:14,375 INFO L142 QuantifierPusher]: treesize reduction 45, result has 59.1 percent of original size [2021-03-11 14:20:14,376 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:20:14,435 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:20:14,436 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:20:14,484 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:20:14,484 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:20:14,526 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:20:14,526 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1392856049] [2021-03-11 14:20:14,526 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:20:14,526 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:20:14,526 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1099931321] [2021-03-11 14:20:14,526 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:20:14,526 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:20:14,526 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:20:14,526 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:20:14,527 INFO L87 Difference]: Start difference. First operand 3128 states and 15603 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:14,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:20:14,803 INFO L93 Difference]: Finished difference Result 6022 states and 26836 transitions. [2021-03-11 14:20:14,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:20:14,804 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:20:14,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:20:14,817 INFO L225 Difference]: With dead ends: 6022 [2021-03-11 14:20:14,817 INFO L226 Difference]: Without dead ends: 5997 [2021-03-11 14:20:14,817 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 335.7ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:20:14,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5997 states. [2021-03-11 14:20:14,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5997 to 3123. [2021-03-11 14:20:14,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3123 states, 3122 states have (on average 4.993273542600897) internal successors, (15589), 3122 states have internal predecessors, (15589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:14,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3123 states to 3123 states and 15589 transitions. [2021-03-11 14:20:14,952 INFO L78 Accepts]: Start accepts. Automaton has 3123 states and 15589 transitions. Word has length 31 [2021-03-11 14:20:14,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:20:14,952 INFO L480 AbstractCegarLoop]: Abstraction has 3123 states and 15589 transitions. [2021-03-11 14:20:14,952 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:14,952 INFO L276 IsEmpty]: Start isEmpty. Operand 3123 states and 15589 transitions. [2021-03-11 14:20:14,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:20:14,957 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:20:14,957 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:20:14,957 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable298 [2021-03-11 14:20:14,957 INFO L428 AbstractCegarLoop]: === Iteration 300 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:20:14,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:20:14,957 INFO L82 PathProgramCache]: Analyzing trace with hash -1003339723, now seen corresponding path program 291 times [2021-03-11 14:20:14,957 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:20:14,957 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1491827495] [2021-03-11 14:20:14,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:20:14,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:20:14,969 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:20:14,969 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:20:14,969 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:20:14,970 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:20:14,974 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:20:14,975 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:20:14,983 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:20:14,984 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:20:14,996 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:20:14,997 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:20:15,014 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:20:15,014 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:20:15,036 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:20:15,037 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:20:15,065 INFO L142 QuantifierPusher]: treesize reduction 27, result has 64.5 percent of original size [2021-03-11 14:20:15,065 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 14:20:15,097 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:20:15,097 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:20:15,135 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:20:15,136 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:20:15,183 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:20:15,184 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:20:15,225 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:20:15,225 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1491827495] [2021-03-11 14:20:15,225 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:20:15,226 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:20:15,226 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [503230065] [2021-03-11 14:20:15,226 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:20:15,226 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:20:15,226 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:20:15,226 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:20:15,226 INFO L87 Difference]: Start difference. First operand 3123 states and 15589 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:15,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:20:15,419 INFO L93 Difference]: Finished difference Result 6016 states and 26824 transitions. [2021-03-11 14:20:15,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:20:15,420 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:20:15,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:20:15,433 INFO L225 Difference]: With dead ends: 6016 [2021-03-11 14:20:15,433 INFO L226 Difference]: Without dead ends: 6000 [2021-03-11 14:20:15,433 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 309.9ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:20:15,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6000 states. [2021-03-11 14:20:15,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6000 to 3128. [2021-03-11 14:20:15,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3128 states, 3127 states have (on average 4.988167572753437) internal successors, (15598), 3127 states have internal predecessors, (15598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:15,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3128 states to 3128 states and 15598 transitions. [2021-03-11 14:20:15,568 INFO L78 Accepts]: Start accepts. Automaton has 3128 states and 15598 transitions. Word has length 31 [2021-03-11 14:20:15,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:20:15,569 INFO L480 AbstractCegarLoop]: Abstraction has 3128 states and 15598 transitions. [2021-03-11 14:20:15,569 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:15,569 INFO L276 IsEmpty]: Start isEmpty. Operand 3128 states and 15598 transitions. [2021-03-11 14:20:15,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:20:15,573 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:20:15,573 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:20:15,573 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable299 [2021-03-11 14:20:15,573 INFO L428 AbstractCegarLoop]: === Iteration 301 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:20:15,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:20:15,574 INFO L82 PathProgramCache]: Analyzing trace with hash 756713217, now seen corresponding path program 292 times [2021-03-11 14:20:15,574 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:20:15,574 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [572342835] [2021-03-11 14:20:15,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:20:15,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:20:15,585 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:20:15,586 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:20:15,586 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:20:15,586 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:20:15,591 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:20:15,591 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:20:15,600 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:20:15,600 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:20:15,613 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:20:15,613 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:20:15,630 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:20:15,631 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:20:15,653 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:20:15,653 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:20:15,680 INFO L142 QuantifierPusher]: treesize reduction 27, result has 64.5 percent of original size [2021-03-11 14:20:15,680 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 14:20:15,712 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:20:15,713 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:20:15,751 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:20:15,752 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:20:15,798 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:20:15,799 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:20:15,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:20:15,840 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [572342835] [2021-03-11 14:20:15,840 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:20:15,840 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:20:15,841 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [776395078] [2021-03-11 14:20:15,841 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:20:15,841 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:20:15,841 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:20:15,841 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:20:15,841 INFO L87 Difference]: Start difference. First operand 3128 states and 15598 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:16,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:20:16,048 INFO L93 Difference]: Finished difference Result 6018 states and 26823 transitions. [2021-03-11 14:20:16,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:20:16,048 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:20:16,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:20:16,062 INFO L225 Difference]: With dead ends: 6018 [2021-03-11 14:20:16,062 INFO L226 Difference]: Without dead ends: 5995 [2021-03-11 14:20:16,062 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 310.0ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:20:16,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5995 states. [2021-03-11 14:20:16,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5995 to 3123. [2021-03-11 14:20:16,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3123 states, 3122 states have (on average 4.9916720051249195) internal successors, (15584), 3122 states have internal predecessors, (15584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:16,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3123 states to 3123 states and 15584 transitions. [2021-03-11 14:20:16,199 INFO L78 Accepts]: Start accepts. Automaton has 3123 states and 15584 transitions. Word has length 31 [2021-03-11 14:20:16,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:20:16,199 INFO L480 AbstractCegarLoop]: Abstraction has 3123 states and 15584 transitions. [2021-03-11 14:20:16,199 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:16,199 INFO L276 IsEmpty]: Start isEmpty. Operand 3123 states and 15584 transitions. [2021-03-11 14:20:16,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:20:16,204 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:20:16,204 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:20:16,204 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable300 [2021-03-11 14:20:16,204 INFO L428 AbstractCegarLoop]: === Iteration 302 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:20:16,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:20:16,204 INFO L82 PathProgramCache]: Analyzing trace with hash 2022344885, now seen corresponding path program 293 times [2021-03-11 14:20:16,204 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:20:16,204 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1274883105] [2021-03-11 14:20:16,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:20:16,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:20:16,216 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:20:16,216 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:20:16,216 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:20:16,217 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:20:16,222 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:20:16,222 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:20:16,231 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:20:16,231 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:20:16,246 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:20:16,246 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:20:16,264 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:20:16,265 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:20:16,286 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:20:16,287 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:20:16,314 INFO L142 QuantifierPusher]: treesize reduction 27, result has 64.5 percent of original size [2021-03-11 14:20:16,314 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 14:20:16,346 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:20:16,347 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:20:16,388 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:20:16,389 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:20:16,438 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:20:16,439 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:20:16,486 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:20:16,486 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1274883105] [2021-03-11 14:20:16,486 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:20:16,486 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:20:16,486 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [119454582] [2021-03-11 14:20:16,486 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:20:16,486 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:20:16,486 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:20:16,486 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:20:16,486 INFO L87 Difference]: Start difference. First operand 3123 states and 15584 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:16,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:20:16,709 INFO L93 Difference]: Finished difference Result 6026 states and 26841 transitions. [2021-03-11 14:20:16,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:20:16,710 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:20:16,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:20:16,724 INFO L225 Difference]: With dead ends: 6026 [2021-03-11 14:20:16,724 INFO L226 Difference]: Without dead ends: 6006 [2021-03-11 14:20:16,724 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 331.2ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:20:16,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6006 states. [2021-03-11 14:20:16,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6006 to 3130. [2021-03-11 14:20:16,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3130 states, 3129 states have (on average 4.984659635666347) internal successors, (15597), 3129 states have internal predecessors, (15597), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:16,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3130 states to 3130 states and 15597 transitions. [2021-03-11 14:20:16,862 INFO L78 Accepts]: Start accepts. Automaton has 3130 states and 15597 transitions. Word has length 31 [2021-03-11 14:20:16,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:20:16,862 INFO L480 AbstractCegarLoop]: Abstraction has 3130 states and 15597 transitions. [2021-03-11 14:20:16,862 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:16,862 INFO L276 IsEmpty]: Start isEmpty. Operand 3130 states and 15597 transitions. [2021-03-11 14:20:16,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:20:16,867 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:20:16,867 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:20:16,867 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable301 [2021-03-11 14:20:16,867 INFO L428 AbstractCegarLoop]: === Iteration 303 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:20:16,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:20:16,868 INFO L82 PathProgramCache]: Analyzing trace with hash 332401981, now seen corresponding path program 294 times [2021-03-11 14:20:16,868 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:20:16,868 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1143821146] [2021-03-11 14:20:16,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:20:16,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:20:16,879 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:20:16,880 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:20:16,881 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:20:16,881 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:20:16,887 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:20:16,887 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:20:16,898 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:20:16,898 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:20:16,914 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:20:16,914 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:20:16,935 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:20:16,936 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:20:16,961 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:20:16,962 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:20:16,989 INFO L142 QuantifierPusher]: treesize reduction 27, result has 64.5 percent of original size [2021-03-11 14:20:16,990 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 14:20:17,023 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:20:17,023 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:20:17,064 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:20:17,064 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:20:17,112 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:20:17,113 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:20:17,156 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:20:17,156 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1143821146] [2021-03-11 14:20:17,156 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:20:17,156 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:20:17,156 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2063574177] [2021-03-11 14:20:17,156 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:20:17,156 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:20:17,157 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:20:17,157 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:20:17,157 INFO L87 Difference]: Start difference. First operand 3130 states and 15597 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:17,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:20:17,358 INFO L93 Difference]: Finished difference Result 6024 states and 26830 transitions. [2021-03-11 14:20:17,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:20:17,359 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:20:17,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:20:17,372 INFO L225 Difference]: With dead ends: 6024 [2021-03-11 14:20:17,372 INFO L226 Difference]: Without dead ends: 5994 [2021-03-11 14:20:17,373 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 330.9ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:20:17,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5994 states. [2021-03-11 14:20:17,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5994 to 3118. [2021-03-11 14:20:17,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3118 states, 3117 states have (on average 4.995187680461982) internal successors, (15570), 3117 states have internal predecessors, (15570), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:17,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3118 states to 3118 states and 15570 transitions. [2021-03-11 14:20:17,509 INFO L78 Accepts]: Start accepts. Automaton has 3118 states and 15570 transitions. Word has length 31 [2021-03-11 14:20:17,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:20:17,509 INFO L480 AbstractCegarLoop]: Abstraction has 3118 states and 15570 transitions. [2021-03-11 14:20:17,509 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:17,509 INFO L276 IsEmpty]: Start isEmpty. Operand 3118 states and 15570 transitions. [2021-03-11 14:20:17,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:20:17,514 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:20:17,514 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:20:17,514 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable302 [2021-03-11 14:20:17,514 INFO L428 AbstractCegarLoop]: === Iteration 304 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:20:17,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:20:17,514 INFO L82 PathProgramCache]: Analyzing trace with hash 1589646755, now seen corresponding path program 295 times [2021-03-11 14:20:17,514 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:20:17,514 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1719419639] [2021-03-11 14:20:17,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:20:17,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:20:17,526 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:20:17,526 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:20:17,527 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:20:17,527 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:20:17,532 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:20:17,532 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:20:17,554 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:20:17,554 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:20:17,568 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:20:17,569 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:20:17,586 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:20:17,587 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:20:17,610 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:20:17,611 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:20:17,637 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:20:17,638 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:20:17,690 INFO L142 QuantifierPusher]: treesize reduction 45, result has 59.1 percent of original size [2021-03-11 14:20:17,691 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:20:17,752 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:20:17,752 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:20:17,800 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:20:17,801 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:20:17,847 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:20:17,847 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1719419639] [2021-03-11 14:20:17,847 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:20:17,847 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:20:17,847 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1831104624] [2021-03-11 14:20:17,847 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:20:17,847 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:20:17,847 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:20:17,847 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:20:17,848 INFO L87 Difference]: Start difference. First operand 3118 states and 15570 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:18,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:20:18,051 INFO L93 Difference]: Finished difference Result 6029 states and 26851 transitions. [2021-03-11 14:20:18,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:20:18,051 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:20:18,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:20:18,065 INFO L225 Difference]: With dead ends: 6029 [2021-03-11 14:20:18,065 INFO L226 Difference]: Without dead ends: 6013 [2021-03-11 14:20:18,065 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 373.4ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:20:18,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6013 states. [2021-03-11 14:20:18,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6013 to 3130. [2021-03-11 14:20:18,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3130 states, 3129 states have (on average 4.9865771812080535) internal successors, (15603), 3129 states have internal predecessors, (15603), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:18,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3130 states to 3130 states and 15603 transitions. [2021-03-11 14:20:18,204 INFO L78 Accepts]: Start accepts. Automaton has 3130 states and 15603 transitions. Word has length 31 [2021-03-11 14:20:18,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:20:18,204 INFO L480 AbstractCegarLoop]: Abstraction has 3130 states and 15603 transitions. [2021-03-11 14:20:18,204 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:18,204 INFO L276 IsEmpty]: Start isEmpty. Operand 3130 states and 15603 transitions. [2021-03-11 14:20:18,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:20:18,209 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:20:18,209 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:20:18,209 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable303 [2021-03-11 14:20:18,209 INFO L428 AbstractCegarLoop]: === Iteration 305 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:20:18,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:20:18,209 INFO L82 PathProgramCache]: Analyzing trace with hash 744675303, now seen corresponding path program 296 times [2021-03-11 14:20:18,209 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:20:18,209 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1157710017] [2021-03-11 14:20:18,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:20:18,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:20:18,221 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:20:18,221 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:20:18,221 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:20:18,222 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:20:18,227 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:20:18,227 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:20:18,236 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:20:18,236 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:20:18,249 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:20:18,249 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:20:18,267 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:20:18,267 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:20:18,290 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:20:18,290 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:20:18,318 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:20:18,319 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:20:18,371 INFO L142 QuantifierPusher]: treesize reduction 45, result has 59.1 percent of original size [2021-03-11 14:20:18,372 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:20:18,432 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:20:18,433 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:20:18,482 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:20:18,483 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:20:18,527 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:20:18,528 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1157710017] [2021-03-11 14:20:18,528 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:20:18,528 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:20:18,528 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [999250910] [2021-03-11 14:20:18,528 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:20:18,528 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:20:18,528 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:20:18,528 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:20:18,528 INFO L87 Difference]: Start difference. First operand 3130 states and 15603 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:18,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:20:18,737 INFO L93 Difference]: Finished difference Result 6033 states and 26854 transitions. [2021-03-11 14:20:18,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:20:18,738 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:20:18,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:20:18,751 INFO L225 Difference]: With dead ends: 6033 [2021-03-11 14:20:18,751 INFO L226 Difference]: Without dead ends: 6008 [2021-03-11 14:20:18,751 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 366.7ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:20:18,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6008 states. [2021-03-11 14:20:18,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6008 to 3125. [2021-03-11 14:20:18,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3125 states, 3124 states have (on average 4.990076824583867) internal successors, (15589), 3124 states have internal predecessors, (15589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:18,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3125 states to 3125 states and 15589 transitions. [2021-03-11 14:20:18,890 INFO L78 Accepts]: Start accepts. Automaton has 3125 states and 15589 transitions. Word has length 31 [2021-03-11 14:20:18,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:20:18,890 INFO L480 AbstractCegarLoop]: Abstraction has 3125 states and 15589 transitions. [2021-03-11 14:20:18,890 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:18,890 INFO L276 IsEmpty]: Start isEmpty. Operand 3125 states and 15589 transitions. [2021-03-11 14:20:18,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:20:18,895 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:20:18,895 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:20:18,895 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable304 [2021-03-11 14:20:18,895 INFO L428 AbstractCegarLoop]: === Iteration 306 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:20:18,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:20:18,896 INFO L82 PathProgramCache]: Analyzing trace with hash 104557429, now seen corresponding path program 297 times [2021-03-11 14:20:18,896 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:20:18,896 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [246642333] [2021-03-11 14:20:18,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:20:18,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:20:18,913 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:20:18,913 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:20:18,914 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:20:18,914 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:20:18,920 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:20:18,920 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:20:18,931 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:20:18,932 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:20:18,946 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:20:18,946 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:20:18,966 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:20:18,967 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:20:18,989 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:20:18,990 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:20:19,018 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:20:19,018 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:20:19,079 INFO L142 QuantifierPusher]: treesize reduction 54, result has 55.4 percent of original size [2021-03-11 14:20:19,080 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-03-11 14:20:19,145 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:20:19,145 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:20:19,193 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:20:19,193 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:20:19,237 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:20:19,237 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [246642333] [2021-03-11 14:20:19,237 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:20:19,237 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:20:19,237 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1291266403] [2021-03-11 14:20:19,237 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:20:19,237 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:20:19,238 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:20:19,238 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:20:19,238 INFO L87 Difference]: Start difference. First operand 3125 states and 15589 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:19,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:20:19,439 INFO L93 Difference]: Finished difference Result 6032 states and 26851 transitions. [2021-03-11 14:20:19,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:20:19,440 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:20:19,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:20:19,452 INFO L225 Difference]: With dead ends: 6032 [2021-03-11 14:20:19,453 INFO L226 Difference]: Without dead ends: 6016 [2021-03-11 14:20:19,453 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 377.1ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:20:19,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6016 states. [2021-03-11 14:20:19,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6016 to 3131. [2021-03-11 14:20:19,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3131 states, 3130 states have (on average 4.984025559105431) internal successors, (15600), 3130 states have internal predecessors, (15600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:19,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3131 states to 3131 states and 15600 transitions. [2021-03-11 14:20:19,592 INFO L78 Accepts]: Start accepts. Automaton has 3131 states and 15600 transitions. Word has length 31 [2021-03-11 14:20:19,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:20:19,592 INFO L480 AbstractCegarLoop]: Abstraction has 3131 states and 15600 transitions. [2021-03-11 14:20:19,592 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:19,592 INFO L276 IsEmpty]: Start isEmpty. Operand 3131 states and 15600 transitions. [2021-03-11 14:20:19,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:20:19,597 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:20:19,597 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:20:19,597 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable305 [2021-03-11 14:20:19,597 INFO L428 AbstractCegarLoop]: === Iteration 307 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:20:19,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:20:19,597 INFO L82 PathProgramCache]: Analyzing trace with hash 597153191, now seen corresponding path program 298 times [2021-03-11 14:20:19,597 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:20:19,597 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [682359776] [2021-03-11 14:20:19,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:20:19,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:20:19,609 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:20:19,610 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:20:19,610 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:20:19,610 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:20:19,616 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:20:19,616 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:20:19,625 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:20:19,625 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:20:19,638 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:20:19,639 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:20:19,657 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:20:19,657 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:20:19,683 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:20:19,684 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:20:19,715 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:20:19,715 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:20:19,775 INFO L142 QuantifierPusher]: treesize reduction 54, result has 55.4 percent of original size [2021-03-11 14:20:19,775 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-03-11 14:20:19,841 INFO L142 QuantifierPusher]: treesize reduction 72, result has 49.7 percent of original size [2021-03-11 14:20:19,841 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-03-11 14:20:19,890 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:20:19,891 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:20:19,938 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:20:19,938 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [682359776] [2021-03-11 14:20:19,938 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:20:19,938 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:20:19,938 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253095835] [2021-03-11 14:20:19,938 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:20:19,938 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:20:19,938 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:20:19,938 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:20:19,938 INFO L87 Difference]: Start difference. First operand 3131 states and 15600 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:20,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:20:20,108 INFO L93 Difference]: Finished difference Result 6038 states and 26857 transitions. [2021-03-11 14:20:20,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:20:20,108 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:20:20,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:20:20,122 INFO L225 Difference]: With dead ends: 6038 [2021-03-11 14:20:20,122 INFO L226 Difference]: Without dead ends: 6010 [2021-03-11 14:20:20,122 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 350.8ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:20:20,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6010 states. [2021-03-11 14:20:20,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6010 to 3125. [2021-03-11 14:20:20,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3125 states, 3124 states have (on average 4.988156209987196) internal successors, (15583), 3124 states have internal predecessors, (15583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:20,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3125 states to 3125 states and 15583 transitions. [2021-03-11 14:20:20,266 INFO L78 Accepts]: Start accepts. Automaton has 3125 states and 15583 transitions. Word has length 31 [2021-03-11 14:20:20,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:20:20,266 INFO L480 AbstractCegarLoop]: Abstraction has 3125 states and 15583 transitions. [2021-03-11 14:20:20,267 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:20,267 INFO L276 IsEmpty]: Start isEmpty. Operand 3125 states and 15583 transitions. [2021-03-11 14:20:20,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:20:20,272 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:20:20,272 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:20:20,272 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable306 [2021-03-11 14:20:20,272 INFO L428 AbstractCegarLoop]: === Iteration 308 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:20:20,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:20:20,272 INFO L82 PathProgramCache]: Analyzing trace with hash -1164725259, now seen corresponding path program 299 times [2021-03-11 14:20:20,273 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:20:20,273 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [532150825] [2021-03-11 14:20:20,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:20:20,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:20:20,284 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:20:20,285 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:20:20,285 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:20:20,285 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:20:20,291 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:20:20,291 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:20:20,300 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:20:20,301 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:20:20,315 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:20:20,315 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:20:20,334 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:20:20,335 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:20:20,358 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:20:20,358 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:20:20,386 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:20:20,386 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:20:20,439 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:20:20,440 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:20:20,482 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:20:20,483 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:20:20,531 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:20:20,532 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:20:20,576 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:20:20,576 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [532150825] [2021-03-11 14:20:20,576 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:20:20,576 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:20:20,576 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [361378095] [2021-03-11 14:20:20,576 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:20:20,577 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:20:20,577 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:20:20,577 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:20:20,577 INFO L87 Difference]: Start difference. First operand 3125 states and 15583 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:20,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:20:20,797 INFO L93 Difference]: Finished difference Result 6045 states and 26874 transitions. [2021-03-11 14:20:20,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:20:20,798 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:20:20,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:20:20,812 INFO L225 Difference]: With dead ends: 6045 [2021-03-11 14:20:20,812 INFO L226 Difference]: Without dead ends: 6025 [2021-03-11 14:20:20,812 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 355.0ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:20:20,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6025 states. [2021-03-11 14:20:20,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6025 to 3136. [2021-03-11 14:20:20,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3136 states, 3135 states have (on average 4.977033492822967) internal successors, (15603), 3135 states have internal predecessors, (15603), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:20,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3136 states to 3136 states and 15603 transitions. [2021-03-11 14:20:20,954 INFO L78 Accepts]: Start accepts. Automaton has 3136 states and 15603 transitions. Word has length 31 [2021-03-11 14:20:20,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:20:20,954 INFO L480 AbstractCegarLoop]: Abstraction has 3136 states and 15603 transitions. [2021-03-11 14:20:20,954 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:20,954 INFO L276 IsEmpty]: Start isEmpty. Operand 3136 states and 15603 transitions. [2021-03-11 14:20:20,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:20:20,959 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:20:20,959 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:20:20,959 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable307 [2021-03-11 14:20:20,959 INFO L428 AbstractCegarLoop]: === Iteration 309 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:20:20,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:20:20,959 INFO L82 PathProgramCache]: Analyzing trace with hash 172841955, now seen corresponding path program 300 times [2021-03-11 14:20:20,959 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:20:20,959 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1726544070] [2021-03-11 14:20:20,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:20:20,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:20:20,971 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:20:20,972 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:20:20,972 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:20:20,973 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:20:20,978 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:20:20,979 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:20:20,990 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:20:20,990 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:20:21,006 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:20:21,007 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:20:21,028 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:20:21,029 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:20:21,053 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:20:21,054 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:20:21,082 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:20:21,083 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:20:21,142 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:20:21,143 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:20:21,190 INFO L142 QuantifierPusher]: treesize reduction 72, result has 49.7 percent of original size [2021-03-11 14:20:21,191 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-03-11 14:20:21,243 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:20:21,244 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:20:21,291 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:20:21,291 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1726544070] [2021-03-11 14:20:21,291 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:20:21,291 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:20:21,291 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [786515354] [2021-03-11 14:20:21,291 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:20:21,292 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:20:21,292 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:20:21,292 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:20:21,292 INFO L87 Difference]: Start difference. First operand 3136 states and 15603 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:21,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:20:21,536 INFO L93 Difference]: Finished difference Result 6047 states and 26868 transitions. [2021-03-11 14:20:21,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:20:21,537 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:20:21,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:20:21,551 INFO L225 Difference]: With dead ends: 6047 [2021-03-11 14:20:21,551 INFO L226 Difference]: Without dead ends: 6007 [2021-03-11 14:20:21,551 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 342.5ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:20:21,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6007 states. [2021-03-11 14:20:21,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6007 to 3118. [2021-03-11 14:20:21,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3118 states, 3117 states have (on average 4.992941931344241) internal successors, (15563), 3117 states have internal predecessors, (15563), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:21,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3118 states to 3118 states and 15563 transitions. [2021-03-11 14:20:21,689 INFO L78 Accepts]: Start accepts. Automaton has 3118 states and 15563 transitions. Word has length 31 [2021-03-11 14:20:21,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:20:21,689 INFO L480 AbstractCegarLoop]: Abstraction has 3118 states and 15563 transitions. [2021-03-11 14:20:21,689 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:21,689 INFO L276 IsEmpty]: Start isEmpty. Operand 3118 states and 15563 transitions. [2021-03-11 14:20:21,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:20:21,694 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:20:21,694 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:20:21,694 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable308 [2021-03-11 14:20:21,694 INFO L428 AbstractCegarLoop]: === Iteration 310 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:20:21,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:20:21,694 INFO L82 PathProgramCache]: Analyzing trace with hash 203531427, now seen corresponding path program 301 times [2021-03-11 14:20:21,694 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:20:21,695 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [71897327] [2021-03-11 14:20:21,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:20:21,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:20:21,707 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:20:21,707 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:20:21,708 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:20:21,708 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:20:21,713 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:20:21,714 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:20:21,723 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:20:21,724 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:20:21,738 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:20:21,739 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:20:21,758 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:20:21,758 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:20:21,781 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:20:21,782 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:20:21,810 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:20:21,810 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:20:21,877 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:20:21,878 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:20:21,925 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:20:21,925 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:20:21,975 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:20:21,976 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:20:22,021 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:20:22,022 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [71897327] [2021-03-11 14:20:22,022 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:20:22,022 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:20:22,022 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1916458485] [2021-03-11 14:20:22,022 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:20:22,022 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:20:22,022 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:20:22,022 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:20:22,022 INFO L87 Difference]: Start difference. First operand 3118 states and 15563 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:22,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:20:22,252 INFO L93 Difference]: Finished difference Result 6021 states and 26827 transitions. [2021-03-11 14:20:22,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:20:22,253 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:20:22,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:20:22,267 INFO L225 Difference]: With dead ends: 6021 [2021-03-11 14:20:22,267 INFO L226 Difference]: Without dead ends: 6005 [2021-03-11 14:20:22,267 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 373.8ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:20:22,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6005 states. [2021-03-11 14:20:22,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6005 to 3129. [2021-03-11 14:20:22,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3129 states, 3128 states have (on average 4.985294117647059) internal successors, (15594), 3128 states have internal predecessors, (15594), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:22,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3129 states to 3129 states and 15594 transitions. [2021-03-11 14:20:22,410 INFO L78 Accepts]: Start accepts. Automaton has 3129 states and 15594 transitions. Word has length 31 [2021-03-11 14:20:22,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:20:22,410 INFO L480 AbstractCegarLoop]: Abstraction has 3129 states and 15594 transitions. [2021-03-11 14:20:22,410 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:22,410 INFO L276 IsEmpty]: Start isEmpty. Operand 3129 states and 15594 transitions. [2021-03-11 14:20:22,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:20:22,415 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:20:22,415 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:20:22,415 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable309 [2021-03-11 14:20:22,415 INFO L428 AbstractCegarLoop]: === Iteration 311 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:20:22,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:20:22,415 INFO L82 PathProgramCache]: Analyzing trace with hash 1963584367, now seen corresponding path program 302 times [2021-03-11 14:20:22,415 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:20:22,415 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1075747880] [2021-03-11 14:20:22,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:20:22,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:20:22,427 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:20:22,427 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:20:22,428 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:20:22,428 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:20:22,433 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:20:22,434 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:20:22,443 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:20:22,444 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:20:22,458 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:20:22,458 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:20:22,478 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:20:22,478 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:20:22,502 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:20:22,503 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:20:22,532 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:20:22,532 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:20:22,592 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:20:22,592 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:20:22,633 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:20:22,634 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:20:22,685 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:20:22,685 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:20:22,731 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:20:22,731 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1075747880] [2021-03-11 14:20:22,731 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:20:22,731 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:20:22,731 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [15132130] [2021-03-11 14:20:22,731 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:20:22,732 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:20:22,732 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:20:22,732 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:20:22,732 INFO L87 Difference]: Start difference. First operand 3129 states and 15594 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:22,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:20:22,988 INFO L93 Difference]: Finished difference Result 6023 states and 26826 transitions. [2021-03-11 14:20:22,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:20:22,989 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:20:22,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:20:23,002 INFO L225 Difference]: With dead ends: 6023 [2021-03-11 14:20:23,003 INFO L226 Difference]: Without dead ends: 6000 [2021-03-11 14:20:23,003 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 363.8ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:20:23,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6000 states. [2021-03-11 14:20:23,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6000 to 3124. [2021-03-11 14:20:23,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3124 states, 3123 states have (on average 4.988792827409542) internal successors, (15580), 3123 states have internal predecessors, (15580), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:23,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3124 states to 3124 states and 15580 transitions. [2021-03-11 14:20:23,145 INFO L78 Accepts]: Start accepts. Automaton has 3124 states and 15580 transitions. Word has length 31 [2021-03-11 14:20:23,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:20:23,145 INFO L480 AbstractCegarLoop]: Abstraction has 3124 states and 15580 transitions. [2021-03-11 14:20:23,145 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:23,145 INFO L276 IsEmpty]: Start isEmpty. Operand 3124 states and 15580 transitions. [2021-03-11 14:20:23,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:20:23,150 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:20:23,150 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:20:23,150 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable310 [2021-03-11 14:20:23,150 INFO L428 AbstractCegarLoop]: === Iteration 312 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:20:23,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:20:23,151 INFO L82 PathProgramCache]: Analyzing trace with hash -432935427, now seen corresponding path program 303 times [2021-03-11 14:20:23,151 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:20:23,151 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2094774389] [2021-03-11 14:20:23,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:20:23,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:20:23,162 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:20:23,163 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:20:23,163 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:20:23,164 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:20:23,169 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:20:23,169 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:20:23,179 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:20:23,179 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:20:23,193 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:20:23,194 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:20:23,213 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:20:23,213 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:20:23,236 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:20:23,237 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:20:23,264 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:20:23,265 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:20:23,322 INFO L142 QuantifierPusher]: treesize reduction 54, result has 55.4 percent of original size [2021-03-11 14:20:23,323 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-03-11 14:20:23,384 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:20:23,385 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:20:23,432 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:20:23,433 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:20:23,476 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:20:23,476 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2094774389] [2021-03-11 14:20:23,476 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:20:23,476 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:20:23,476 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1717658747] [2021-03-11 14:20:23,476 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:20:23,476 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:20:23,476 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:20:23,476 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:20:23,477 INFO L87 Difference]: Start difference. First operand 3124 states and 15580 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:23,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:20:23,697 INFO L93 Difference]: Finished difference Result 6026 states and 26831 transitions. [2021-03-11 14:20:23,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:20:23,698 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:20:23,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:20:23,712 INFO L225 Difference]: With dead ends: 6026 [2021-03-11 14:20:23,712 INFO L226 Difference]: Without dead ends: 6010 [2021-03-11 14:20:23,712 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 371.6ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:20:23,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6010 states. [2021-03-11 14:20:23,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6010 to 3130. [2021-03-11 14:20:23,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3130 states, 3129 states have (on average 4.98274209012464) internal successors, (15591), 3129 states have internal predecessors, (15591), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:23,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3130 states to 3130 states and 15591 transitions. [2021-03-11 14:20:23,850 INFO L78 Accepts]: Start accepts. Automaton has 3130 states and 15591 transitions. Word has length 31 [2021-03-11 14:20:23,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:20:23,850 INFO L480 AbstractCegarLoop]: Abstraction has 3130 states and 15591 transitions. [2021-03-11 14:20:23,850 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:23,850 INFO L276 IsEmpty]: Start isEmpty. Operand 3130 states and 15591 transitions. [2021-03-11 14:20:23,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:20:23,855 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:20:23,855 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:20:23,855 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable311 [2021-03-11 14:20:23,855 INFO L428 AbstractCegarLoop]: === Iteration 313 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:20:23,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:20:23,855 INFO L82 PathProgramCache]: Analyzing trace with hash 59660335, now seen corresponding path program 304 times [2021-03-11 14:20:23,855 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:20:23,855 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [916412382] [2021-03-11 14:20:23,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:20:23,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:20:23,868 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:20:23,868 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:20:23,868 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:20:23,869 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:20:23,874 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:20:23,874 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:20:23,885 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:20:23,885 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:20:23,899 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:20:23,899 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:20:23,919 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:20:23,919 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:20:23,942 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:20:23,943 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:20:23,970 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:20:23,971 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:20:24,028 INFO L142 QuantifierPusher]: treesize reduction 54, result has 55.4 percent of original size [2021-03-11 14:20:24,028 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-03-11 14:20:24,090 INFO L142 QuantifierPusher]: treesize reduction 72, result has 49.7 percent of original size [2021-03-11 14:20:24,091 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-03-11 14:20:24,141 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:20:24,141 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:20:24,185 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:20:24,185 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [916412382] [2021-03-11 14:20:24,185 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:20:24,186 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:20:24,186 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [483580080] [2021-03-11 14:20:24,186 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:20:24,186 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:20:24,186 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:20:24,186 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:20:24,186 INFO L87 Difference]: Start difference. First operand 3130 states and 15591 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:24,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:20:24,365 INFO L93 Difference]: Finished difference Result 6032 states and 26837 transitions. [2021-03-11 14:20:24,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:20:24,366 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:20:24,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:20:24,379 INFO L225 Difference]: With dead ends: 6032 [2021-03-11 14:20:24,379 INFO L226 Difference]: Without dead ends: 6004 [2021-03-11 14:20:24,379 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 343.2ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:20:24,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6004 states. [2021-03-11 14:20:24,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6004 to 3124. [2021-03-11 14:20:24,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3124 states, 3123 states have (on average 4.986871597822606) internal successors, (15574), 3123 states have internal predecessors, (15574), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:24,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3124 states to 3124 states and 15574 transitions. [2021-03-11 14:20:24,516 INFO L78 Accepts]: Start accepts. Automaton has 3124 states and 15574 transitions. Word has length 31 [2021-03-11 14:20:24,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:20:24,516 INFO L480 AbstractCegarLoop]: Abstraction has 3124 states and 15574 transitions. [2021-03-11 14:20:24,516 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:24,516 INFO L276 IsEmpty]: Start isEmpty. Operand 3124 states and 15574 transitions. [2021-03-11 14:20:24,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:20:24,521 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:20:24,521 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:20:24,521 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable312 [2021-03-11 14:20:24,521 INFO L428 AbstractCegarLoop]: === Iteration 314 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:20:24,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:20:24,521 INFO L82 PathProgramCache]: Analyzing trace with hash 54183805, now seen corresponding path program 305 times [2021-03-11 14:20:24,521 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:20:24,521 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1620446905] [2021-03-11 14:20:24,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:20:24,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:20:24,533 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:20:24,533 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:20:24,534 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:20:24,534 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:20:24,539 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:20:24,540 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:20:24,549 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:20:24,549 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:20:24,562 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:20:24,563 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:20:24,581 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:20:24,582 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:20:24,604 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:20:24,605 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:20:24,632 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:20:24,633 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:20:24,692 INFO L142 QuantifierPusher]: treesize reduction 54, result has 55.4 percent of original size [2021-03-11 14:20:24,692 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-03-11 14:20:24,763 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:20:24,764 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:20:24,813 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:20:24,814 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:20:24,858 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:20:24,858 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1620446905] [2021-03-11 14:20:24,858 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:20:24,858 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:20:24,858 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [672198596] [2021-03-11 14:20:24,858 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:20:24,858 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:20:24,858 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:20:24,858 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:20:24,858 INFO L87 Difference]: Start difference. First operand 3124 states and 15574 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:25,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:20:25,092 INFO L93 Difference]: Finished difference Result 6032 states and 26839 transitions. [2021-03-11 14:20:25,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:20:25,093 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:20:25,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:20:25,106 INFO L225 Difference]: With dead ends: 6032 [2021-03-11 14:20:25,107 INFO L226 Difference]: Without dead ends: 6014 [2021-03-11 14:20:25,107 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 382.4ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:20:25,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6014 states. [2021-03-11 14:20:25,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6014 to 3132. [2021-03-11 14:20:25,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3132 states, 3131 states have (on average 4.9789204726924305) internal successors, (15589), 3131 states have internal predecessors, (15589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:25,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3132 states to 3132 states and 15589 transitions. [2021-03-11 14:20:25,246 INFO L78 Accepts]: Start accepts. Automaton has 3132 states and 15589 transitions. Word has length 31 [2021-03-11 14:20:25,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:20:25,246 INFO L480 AbstractCegarLoop]: Abstraction has 3132 states and 15589 transitions. [2021-03-11 14:20:25,246 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:25,246 INFO L276 IsEmpty]: Start isEmpty. Operand 3132 states and 15589 transitions. [2021-03-11 14:20:25,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:20:25,251 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:20:25,251 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:20:25,251 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable313 [2021-03-11 14:20:25,251 INFO L428 AbstractCegarLoop]: === Iteration 315 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:20:25,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:20:25,251 INFO L82 PathProgramCache]: Analyzing trace with hash -1213273373, now seen corresponding path program 306 times [2021-03-11 14:20:25,251 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:20:25,251 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2088865645] [2021-03-11 14:20:25,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:20:25,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:20:25,263 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:20:25,263 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:20:25,264 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:20:25,264 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:20:25,269 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:20:25,270 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:20:25,279 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:20:25,279 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:20:25,293 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:20:25,294 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:20:25,312 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:20:25,313 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:20:25,336 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:20:25,337 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:20:25,365 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:20:25,366 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:20:25,423 INFO L142 QuantifierPusher]: treesize reduction 54, result has 55.4 percent of original size [2021-03-11 14:20:25,424 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-03-11 14:20:25,495 INFO L142 QuantifierPusher]: treesize reduction 72, result has 49.7 percent of original size [2021-03-11 14:20:25,495 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-03-11 14:20:25,546 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:20:25,546 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:20:25,592 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:20:25,592 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2088865645] [2021-03-11 14:20:25,592 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:20:25,592 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:20:25,592 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2014627783] [2021-03-11 14:20:25,592 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:20:25,592 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:20:25,593 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:20:25,593 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:20:25,593 INFO L87 Difference]: Start difference. First operand 3132 states and 15589 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:25,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:20:25,798 INFO L93 Difference]: Finished difference Result 6036 states and 26839 transitions. [2021-03-11 14:20:25,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:20:25,798 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:20:25,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:20:25,811 INFO L225 Difference]: With dead ends: 6036 [2021-03-11 14:20:25,811 INFO L226 Difference]: Without dead ends: 6000 [2021-03-11 14:20:25,811 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 353.2ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:20:25,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6000 states. [2021-03-11 14:20:25,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6000 to 3118. [2021-03-11 14:20:25,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3118 states, 3117 states have (on average 4.991017003529034) internal successors, (15557), 3117 states have internal predecessors, (15557), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:25,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3118 states to 3118 states and 15557 transitions. [2021-03-11 14:20:25,946 INFO L78 Accepts]: Start accepts. Automaton has 3118 states and 15557 transitions. Word has length 31 [2021-03-11 14:20:25,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:20:25,946 INFO L480 AbstractCegarLoop]: Abstraction has 3118 states and 15557 transitions. [2021-03-11 14:20:25,946 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:25,946 INFO L276 IsEmpty]: Start isEmpty. Operand 3118 states and 15557 transitions. [2021-03-11 14:20:25,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:20:25,951 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:20:25,951 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:20:25,951 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable314 [2021-03-11 14:20:25,951 INFO L428 AbstractCegarLoop]: === Iteration 316 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:20:25,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:20:25,951 INFO L82 PathProgramCache]: Analyzing trace with hash -1334497689, now seen corresponding path program 307 times [2021-03-11 14:20:25,952 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:20:25,952 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1138218393] [2021-03-11 14:20:25,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:20:25,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:20:25,963 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:20:25,963 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:20:25,964 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:20:25,964 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:20:25,969 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:20:25,970 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:20:25,979 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:20:25,980 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:20:25,994 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:20:25,995 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:20:26,014 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:20:26,014 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:20:26,038 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:20:26,039 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:20:26,067 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:20:26,068 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:20:26,103 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:20:26,103 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:20:26,144 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:20:26,145 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:20:26,193 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:20:26,194 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:20:26,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:20:26,238 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1138218393] [2021-03-11 14:20:26,238 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:20:26,238 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:20:26,238 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [679598211] [2021-03-11 14:20:26,238 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:20:26,238 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:20:26,238 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:20:26,238 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:20:26,238 INFO L87 Difference]: Start difference. First operand 3118 states and 15557 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:26,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:20:26,475 INFO L93 Difference]: Finished difference Result 6045 states and 26880 transitions. [2021-03-11 14:20:26,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:20:26,476 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:20:26,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:20:26,489 INFO L225 Difference]: With dead ends: 6045 [2021-03-11 14:20:26,489 INFO L226 Difference]: Without dead ends: 6025 [2021-03-11 14:20:26,490 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 337.6ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:20:26,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6025 states. [2021-03-11 14:20:26,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6025 to 3134. [2021-03-11 14:20:26,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3134 states, 3133 states have (on average 4.979891477816789) internal successors, (15602), 3133 states have internal predecessors, (15602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:26,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3134 states to 3134 states and 15602 transitions. [2021-03-11 14:20:26,626 INFO L78 Accepts]: Start accepts. Automaton has 3134 states and 15602 transitions. Word has length 31 [2021-03-11 14:20:26,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:20:26,626 INFO L480 AbstractCegarLoop]: Abstraction has 3134 states and 15602 transitions. [2021-03-11 14:20:26,626 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:26,626 INFO L276 IsEmpty]: Start isEmpty. Operand 3134 states and 15602 transitions. [2021-03-11 14:20:26,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:20:26,631 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:20:26,631 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:20:26,631 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable315 [2021-03-11 14:20:26,631 INFO L428 AbstractCegarLoop]: === Iteration 317 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:20:26,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:20:26,631 INFO L82 PathProgramCache]: Analyzing trace with hash 1270526703, now seen corresponding path program 308 times [2021-03-11 14:20:26,631 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:20:26,631 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2378635] [2021-03-11 14:20:26,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:20:26,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:20:26,643 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:20:26,643 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:20:26,644 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:20:26,644 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:20:26,649 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:20:26,649 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:20:26,658 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:20:26,659 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:20:26,672 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:20:26,673 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:20:26,691 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:20:26,692 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:20:26,715 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:20:26,715 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:20:26,744 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:20:26,744 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:20:26,780 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:20:26,780 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:20:26,821 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:20:26,822 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:20:26,870 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:20:26,871 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:20:26,917 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:20:26,917 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2378635] [2021-03-11 14:20:26,917 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:20:26,918 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:20:26,918 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [454645401] [2021-03-11 14:20:26,918 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:20:26,918 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:20:26,918 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:20:26,918 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:20:26,918 INFO L87 Difference]: Start difference. First operand 3134 states and 15602 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:27,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:20:27,122 INFO L93 Difference]: Finished difference Result 6043 states and 26869 transitions. [2021-03-11 14:20:27,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:20:27,123 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:20:27,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:20:27,136 INFO L225 Difference]: With dead ends: 6043 [2021-03-11 14:20:27,136 INFO L226 Difference]: Without dead ends: 6018 [2021-03-11 14:20:27,137 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 331.3ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:20:27,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6018 states. [2021-03-11 14:20:27,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6018 to 3127. [2021-03-11 14:20:27,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3127 states, 3126 states have (on average 4.984644913627639) internal successors, (15582), 3126 states have internal predecessors, (15582), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:27,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3127 states to 3127 states and 15582 transitions. [2021-03-11 14:20:27,272 INFO L78 Accepts]: Start accepts. Automaton has 3127 states and 15582 transitions. Word has length 31 [2021-03-11 14:20:27,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:20:27,272 INFO L480 AbstractCegarLoop]: Abstraction has 3127 states and 15582 transitions. [2021-03-11 14:20:27,272 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:27,272 INFO L276 IsEmpty]: Start isEmpty. Operand 3127 states and 15582 transitions. [2021-03-11 14:20:27,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:20:27,278 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:20:27,278 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:20:27,278 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable316 [2021-03-11 14:20:27,278 INFO L428 AbstractCegarLoop]: === Iteration 318 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:20:27,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:20:27,278 INFO L82 PathProgramCache]: Analyzing trace with hash -1970964543, now seen corresponding path program 309 times [2021-03-11 14:20:27,278 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:20:27,278 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [825059056] [2021-03-11 14:20:27,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:20:27,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:20:27,290 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:20:27,290 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:20:27,291 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:20:27,291 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:20:27,296 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:20:27,296 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:20:27,306 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:20:27,306 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:20:27,321 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:20:27,322 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:20:27,341 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:20:27,342 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:20:27,365 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:20:27,365 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:20:27,393 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:20:27,394 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:20:27,431 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:20:27,431 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:20:27,475 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:20:27,476 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:20:27,527 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:20:27,528 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:20:27,574 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:20:27,574 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [825059056] [2021-03-11 14:20:27,574 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:20:27,574 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:20:27,574 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [773377287] [2021-03-11 14:20:27,574 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:20:27,575 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:20:27,575 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:20:27,575 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:20:27,575 INFO L87 Difference]: Start difference. First operand 3127 states and 15582 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:27,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:20:27,890 INFO L93 Difference]: Finished difference Result 6053 states and 26889 transitions. [2021-03-11 14:20:27,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:20:27,891 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:20:27,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:20:27,904 INFO L225 Difference]: With dead ends: 6053 [2021-03-11 14:20:27,905 INFO L226 Difference]: Without dead ends: 6033 [2021-03-11 14:20:27,905 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 348.9ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:20:27,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6033 states. [2021-03-11 14:20:28,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6033 to 3138. [2021-03-11 14:20:28,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3138 states, 3137 states have (on average 4.973541600255021) internal successors, (15602), 3137 states have internal predecessors, (15602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:28,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3138 states to 3138 states and 15602 transitions. [2021-03-11 14:20:28,049 INFO L78 Accepts]: Start accepts. Automaton has 3138 states and 15602 transitions. Word has length 31 [2021-03-11 14:20:28,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:20:28,049 INFO L480 AbstractCegarLoop]: Abstraction has 3138 states and 15602 transitions. [2021-03-11 14:20:28,049 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:28,049 INFO L276 IsEmpty]: Start isEmpty. Operand 3138 states and 15602 transitions. [2021-03-11 14:20:28,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:20:28,054 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:20:28,054 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:20:28,054 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable317 [2021-03-11 14:20:28,054 INFO L428 AbstractCegarLoop]: === Iteration 319 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:20:28,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:20:28,054 INFO L82 PathProgramCache]: Analyzing trace with hash -633397329, now seen corresponding path program 310 times [2021-03-11 14:20:28,054 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:20:28,054 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1740291918] [2021-03-11 14:20:28,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:20:28,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:20:28,067 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:20:28,067 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:20:28,068 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:20:28,068 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:20:28,073 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:20:28,074 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:20:28,084 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:20:28,085 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:20:28,100 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:20:28,101 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:20:28,121 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:20:28,121 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:20:28,145 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:20:28,146 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:20:28,174 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:20:28,175 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:20:28,211 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:20:28,212 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:20:28,255 INFO L142 QuantifierPusher]: treesize reduction 72, result has 49.7 percent of original size [2021-03-11 14:20:28,255 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-03-11 14:20:28,309 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:20:28,310 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:20:28,361 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:20:28,361 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1740291918] [2021-03-11 14:20:28,362 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:20:28,362 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:20:28,362 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550964271] [2021-03-11 14:20:28,362 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:20:28,362 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:20:28,362 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:20:28,362 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:20:28,362 INFO L87 Difference]: Start difference. First operand 3138 states and 15602 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:28,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:20:28,559 INFO L93 Difference]: Finished difference Result 6055 states and 26883 transitions. [2021-03-11 14:20:28,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:20:28,559 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:20:28,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:20:28,572 INFO L225 Difference]: With dead ends: 6055 [2021-03-11 14:20:28,573 INFO L226 Difference]: Without dead ends: 6022 [2021-03-11 14:20:28,573 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 319.4ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:20:28,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6022 states. [2021-03-11 14:20:28,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6022 to 3127. [2021-03-11 14:20:28,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3127 states, 3126 states have (on average 4.981765834932822) internal successors, (15573), 3126 states have internal predecessors, (15573), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:28,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3127 states to 3127 states and 15573 transitions. [2021-03-11 14:20:28,709 INFO L78 Accepts]: Start accepts. Automaton has 3127 states and 15573 transitions. Word has length 31 [2021-03-11 14:20:28,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:20:28,709 INFO L480 AbstractCegarLoop]: Abstraction has 3127 states and 15573 transitions. [2021-03-11 14:20:28,709 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:28,709 INFO L276 IsEmpty]: Start isEmpty. Operand 3127 states and 15573 transitions. [2021-03-11 14:20:28,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:20:28,714 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:20:28,714 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:20:28,714 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable318 [2021-03-11 14:20:28,714 INFO L428 AbstractCegarLoop]: === Iteration 320 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:20:28,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:20:28,714 INFO L82 PathProgramCache]: Analyzing trace with hash -214562623, now seen corresponding path program 311 times [2021-03-11 14:20:28,714 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:20:28,714 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [247893415] [2021-03-11 14:20:28,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:20:28,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:20:28,739 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:20:28,740 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:20:28,740 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:20:28,741 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:20:28,748 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:20:28,749 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:20:28,760 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:20:28,761 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:20:28,779 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:20:28,779 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:20:28,802 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:20:28,803 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:20:28,826 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:20:28,827 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:20:28,855 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:20:28,856 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:20:28,892 INFO L142 QuantifierPusher]: treesize reduction 54, result has 55.4 percent of original size [2021-03-11 14:20:28,892 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-03-11 14:20:28,964 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:20:28,965 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:20:29,015 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:20:29,016 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:20:29,061 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:20:29,061 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [247893415] [2021-03-11 14:20:29,061 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:20:29,061 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:20:29,061 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188079314] [2021-03-11 14:20:29,061 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:20:29,061 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:20:29,062 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:20:29,062 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:20:29,062 INFO L87 Difference]: Start difference. First operand 3127 states and 15573 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:29,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:20:29,292 INFO L93 Difference]: Finished difference Result 6046 states and 26865 transitions. [2021-03-11 14:20:29,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:20:29,293 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:20:29,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:20:29,306 INFO L225 Difference]: With dead ends: 6046 [2021-03-11 14:20:29,306 INFO L226 Difference]: Without dead ends: 6028 [2021-03-11 14:20:29,306 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 376.7ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:20:29,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6028 states. [2021-03-11 14:20:29,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6028 to 3135. [2021-03-11 14:20:29,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3135 states, 3134 states have (on average 4.973835354179962) internal successors, (15588), 3134 states have internal predecessors, (15588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:29,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3135 states to 3135 states and 15588 transitions. [2021-03-11 14:20:29,443 INFO L78 Accepts]: Start accepts. Automaton has 3135 states and 15588 transitions. Word has length 31 [2021-03-11 14:20:29,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:20:29,443 INFO L480 AbstractCegarLoop]: Abstraction has 3135 states and 15588 transitions. [2021-03-11 14:20:29,443 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:29,443 INFO L276 IsEmpty]: Start isEmpty. Operand 3135 states and 15588 transitions. [2021-03-11 14:20:29,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:20:29,448 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:20:29,448 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:20:29,448 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable319 [2021-03-11 14:20:29,448 INFO L428 AbstractCegarLoop]: === Iteration 321 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:20:29,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:20:29,448 INFO L82 PathProgramCache]: Analyzing trace with hash -1482019801, now seen corresponding path program 312 times [2021-03-11 14:20:29,448 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:20:29,448 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [127371866] [2021-03-11 14:20:29,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:20:29,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:20:29,460 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:20:29,460 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:20:29,461 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:20:29,461 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:20:29,467 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:20:29,467 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:20:29,477 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:20:29,478 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:20:29,494 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:20:29,494 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:20:29,515 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:20:29,515 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:20:29,542 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:20:29,542 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:20:29,575 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:20:29,576 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:20:29,620 INFO L142 QuantifierPusher]: treesize reduction 54, result has 55.4 percent of original size [2021-03-11 14:20:29,621 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-03-11 14:20:29,705 INFO L142 QuantifierPusher]: treesize reduction 72, result has 49.7 percent of original size [2021-03-11 14:20:29,705 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-03-11 14:20:29,765 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:20:29,766 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:20:29,820 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:20:29,821 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [127371866] [2021-03-11 14:20:29,821 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:20:29,821 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:20:29,821 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2027507061] [2021-03-11 14:20:29,821 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:20:29,821 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:20:29,821 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:20:29,821 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:20:29,821 INFO L87 Difference]: Start difference. First operand 3135 states and 15588 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:30,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:20:30,124 INFO L93 Difference]: Finished difference Result 6050 states and 26865 transitions. [2021-03-11 14:20:30,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:20:30,125 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:20:30,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:20:30,140 INFO L225 Difference]: With dead ends: 6050 [2021-03-11 14:20:30,140 INFO L226 Difference]: Without dead ends: 6004 [2021-03-11 14:20:30,140 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 387.6ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:20:30,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6004 states. [2021-03-11 14:20:30,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6004 to 3111. [2021-03-11 14:20:30,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3111 states, 3110 states have (on average 4.995819935691318) internal successors, (15537), 3110 states have internal predecessors, (15537), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:30,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3111 states to 3111 states and 15537 transitions. [2021-03-11 14:20:30,285 INFO L78 Accepts]: Start accepts. Automaton has 3111 states and 15537 transitions. Word has length 31 [2021-03-11 14:20:30,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:20:30,286 INFO L480 AbstractCegarLoop]: Abstraction has 3111 states and 15537 transitions. [2021-03-11 14:20:30,286 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:30,286 INFO L276 IsEmpty]: Start isEmpty. Operand 3111 states and 15537 transitions. [2021-03-11 14:20:30,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:20:30,292 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:20:30,292 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:20:30,292 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable320 [2021-03-11 14:20:30,292 INFO L428 AbstractCegarLoop]: === Iteration 322 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:20:30,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:20:30,292 INFO L82 PathProgramCache]: Analyzing trace with hash -588979591, now seen corresponding path program 313 times [2021-03-11 14:20:30,292 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:20:30,292 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1675647009] [2021-03-11 14:20:30,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:20:30,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:20:30,304 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:20:30,305 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:20:30,305 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:20:30,305 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:20:30,311 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:20:30,311 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:20:30,322 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:20:30,322 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:20:30,337 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:20:30,338 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:20:30,359 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:20:30,359 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:20:30,385 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:20:30,386 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:20:30,439 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:20:30,440 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:20:30,477 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:20:30,478 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:20:30,523 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:20:30,524 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:20:30,576 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:20:30,577 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:20:30,624 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:20:30,625 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1675647009] [2021-03-11 14:20:30,625 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:20:30,625 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:20:30,625 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1191702943] [2021-03-11 14:20:30,625 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:20:30,625 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:20:30,625 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:20:30,625 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:20:30,625 INFO L87 Difference]: Start difference. First operand 3111 states and 15537 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:30,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:20:30,952 INFO L93 Difference]: Finished difference Result 5999 states and 26781 transitions. [2021-03-11 14:20:30,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:20:30,953 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:20:30,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:20:30,967 INFO L225 Difference]: With dead ends: 5999 [2021-03-11 14:20:30,967 INFO L226 Difference]: Without dead ends: 5983 [2021-03-11 14:20:30,967 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 381.3ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:20:31,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5983 states. [2021-03-11 14:20:31,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5983 to 3127. [2021-03-11 14:20:31,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3127 states, 3126 states have (on average 4.988163787587972) internal successors, (15593), 3126 states have internal predecessors, (15593), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:31,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3127 states to 3127 states and 15593 transitions. [2021-03-11 14:20:31,113 INFO L78 Accepts]: Start accepts. Automaton has 3127 states and 15593 transitions. Word has length 31 [2021-03-11 14:20:31,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:20:31,113 INFO L480 AbstractCegarLoop]: Abstraction has 3127 states and 15593 transitions. [2021-03-11 14:20:31,113 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:31,113 INFO L276 IsEmpty]: Start isEmpty. Operand 3127 states and 15593 transitions. [2021-03-11 14:20:31,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:20:31,118 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:20:31,118 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:20:31,118 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable321 [2021-03-11 14:20:31,118 INFO L428 AbstractCegarLoop]: === Iteration 323 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:20:31,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:20:31,119 INFO L82 PathProgramCache]: Analyzing trace with hash 2016044801, now seen corresponding path program 314 times [2021-03-11 14:20:31,119 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:20:31,119 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1206372258] [2021-03-11 14:20:31,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:20:31,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:20:31,130 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:20:31,131 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:20:31,131 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:20:31,132 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:20:31,138 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:20:31,138 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:20:31,148 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:20:31,149 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:20:31,164 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:20:31,165 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:20:31,186 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:20:31,186 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:20:31,212 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:20:31,213 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:20:31,267 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:20:31,267 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:20:31,305 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:20:31,306 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:20:31,351 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:20:31,352 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:20:31,404 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:20:31,405 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:20:31,450 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:20:31,450 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1206372258] [2021-03-11 14:20:31,450 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:20:31,451 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:20:31,451 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1566772295] [2021-03-11 14:20:31,451 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:20:31,451 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:20:31,451 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:20:31,451 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:20:31,451 INFO L87 Difference]: Start difference. First operand 3127 states and 15593 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:31,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:20:31,651 INFO L93 Difference]: Finished difference Result 6000 states and 26778 transitions. [2021-03-11 14:20:31,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:20:31,652 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:20:31,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:20:31,665 INFO L225 Difference]: With dead ends: 6000 [2021-03-11 14:20:31,665 INFO L226 Difference]: Without dead ends: 5978 [2021-03-11 14:20:31,665 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 378.4ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:20:31,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5978 states. [2021-03-11 14:20:31,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5978 to 3122. [2021-03-11 14:20:31,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3122 states, 3121 states have (on average 4.991669336751041) internal successors, (15579), 3121 states have internal predecessors, (15579), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:31,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3122 states to 3122 states and 15579 transitions. [2021-03-11 14:20:31,805 INFO L78 Accepts]: Start accepts. Automaton has 3122 states and 15579 transitions. Word has length 31 [2021-03-11 14:20:31,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:20:31,805 INFO L480 AbstractCegarLoop]: Abstraction has 3122 states and 15579 transitions. [2021-03-11 14:20:31,805 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:31,806 INFO L276 IsEmpty]: Start isEmpty. Operand 3122 states and 15579 transitions. [2021-03-11 14:20:31,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:20:31,810 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:20:31,810 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:20:31,810 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable322 [2021-03-11 14:20:31,810 INFO L428 AbstractCegarLoop]: === Iteration 324 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:20:31,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:20:31,811 INFO L82 PathProgramCache]: Analyzing trace with hash -1013290827, now seen corresponding path program 315 times [2021-03-11 14:20:31,811 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:20:31,811 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [990373662] [2021-03-11 14:20:31,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:20:31,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:20:31,822 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:20:31,823 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:20:31,823 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:20:31,824 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:20:31,829 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:20:31,829 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:20:31,839 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:20:31,839 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:20:31,853 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:20:31,854 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:20:31,874 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:20:31,875 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:20:31,900 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:20:31,901 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:20:31,951 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:20:31,952 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:20:31,987 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:20:31,988 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:20:32,030 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:20:32,031 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:20:32,083 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:20:32,084 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:20:32,131 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:20:32,131 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [990373662] [2021-03-11 14:20:32,131 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:20:32,131 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:20:32,131 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [299304706] [2021-03-11 14:20:32,131 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:20:32,131 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:20:32,131 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:20:32,131 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:20:32,132 INFO L87 Difference]: Start difference. First operand 3122 states and 15579 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:32,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:20:32,358 INFO L93 Difference]: Finished difference Result 6000 states and 26778 transitions. [2021-03-11 14:20:32,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:20:32,359 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:20:32,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:20:32,373 INFO L225 Difference]: With dead ends: 6000 [2021-03-11 14:20:32,373 INFO L226 Difference]: Without dead ends: 5984 [2021-03-11 14:20:32,373 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 365.1ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:20:32,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5984 states. [2021-03-11 14:20:32,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5984 to 3127. [2021-03-11 14:20:32,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3127 states, 3126 states have (on average 4.9865642994241846) internal successors, (15588), 3126 states have internal predecessors, (15588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:32,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3127 states to 3127 states and 15588 transitions. [2021-03-11 14:20:32,515 INFO L78 Accepts]: Start accepts. Automaton has 3127 states and 15588 transitions. Word has length 31 [2021-03-11 14:20:32,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:20:32,515 INFO L480 AbstractCegarLoop]: Abstraction has 3127 states and 15588 transitions. [2021-03-11 14:20:32,515 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:32,515 INFO L276 IsEmpty]: Start isEmpty. Operand 3127 states and 15588 transitions. [2021-03-11 14:20:32,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:20:32,520 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:20:32,520 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:20:32,520 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable323 [2021-03-11 14:20:32,520 INFO L428 AbstractCegarLoop]: === Iteration 325 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:20:32,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:20:32,520 INFO L82 PathProgramCache]: Analyzing trace with hash 746762113, now seen corresponding path program 316 times [2021-03-11 14:20:32,520 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:20:32,520 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [850626950] [2021-03-11 14:20:32,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:20:32,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:20:32,532 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:20:32,532 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:20:32,533 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:20:32,533 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:20:32,538 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:20:32,539 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:20:32,548 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:20:32,548 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:20:32,562 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:20:32,562 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:20:32,580 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:20:32,581 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:20:32,605 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:20:32,605 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:20:32,656 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:20:32,656 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:20:32,691 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:20:32,691 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:20:32,731 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:20:32,731 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:20:32,780 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:20:32,780 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:20:32,825 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:20:32,825 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [850626950] [2021-03-11 14:20:32,825 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:20:32,825 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:20:32,825 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1233625533] [2021-03-11 14:20:32,825 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:20:32,825 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:20:32,826 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:20:32,826 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:20:32,826 INFO L87 Difference]: Start difference. First operand 3127 states and 15588 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:33,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:20:33,027 INFO L93 Difference]: Finished difference Result 6002 states and 26777 transitions. [2021-03-11 14:20:33,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:20:33,028 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:20:33,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:20:33,042 INFO L225 Difference]: With dead ends: 6002 [2021-03-11 14:20:33,042 INFO L226 Difference]: Without dead ends: 5979 [2021-03-11 14:20:33,042 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 349.6ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:20:33,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5979 states. [2021-03-11 14:20:33,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5979 to 3122. [2021-03-11 14:20:33,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3122 states, 3121 states have (on average 4.990067286126242) internal successors, (15574), 3121 states have internal predecessors, (15574), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:33,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3122 states to 3122 states and 15574 transitions. [2021-03-11 14:20:33,184 INFO L78 Accepts]: Start accepts. Automaton has 3122 states and 15574 transitions. Word has length 31 [2021-03-11 14:20:33,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:20:33,184 INFO L480 AbstractCegarLoop]: Abstraction has 3122 states and 15574 transitions. [2021-03-11 14:20:33,185 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:33,185 INFO L276 IsEmpty]: Start isEmpty. Operand 3122 states and 15574 transitions. [2021-03-11 14:20:33,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:20:33,190 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:20:33,190 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:20:33,190 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable324 [2021-03-11 14:20:33,190 INFO L428 AbstractCegarLoop]: === Iteration 326 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:20:33,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:20:33,190 INFO L82 PathProgramCache]: Analyzing trace with hash 743111093, now seen corresponding path program 317 times [2021-03-11 14:20:33,190 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:20:33,190 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [179106755] [2021-03-11 14:20:33,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:20:33,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:20:33,202 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:20:33,203 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:20:33,203 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:20:33,204 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:20:33,210 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:20:33,211 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:20:33,222 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:20:33,223 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:20:33,238 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:20:33,238 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:20:33,256 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:20:33,257 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:20:33,280 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:20:33,280 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:20:33,332 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:20:33,332 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:20:33,367 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:20:33,368 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:20:33,411 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:20:33,412 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:20:33,460 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:20:33,461 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:20:33,504 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:20:33,504 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [179106755] [2021-03-11 14:20:33,504 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:20:33,504 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:20:33,504 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2136373659] [2021-03-11 14:20:33,505 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:20:33,505 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:20:33,505 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:20:33,505 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:20:33,505 INFO L87 Difference]: Start difference. First operand 3122 states and 15574 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:33,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:20:33,697 INFO L93 Difference]: Finished difference Result 6003 states and 26780 transitions. [2021-03-11 14:20:33,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:20:33,698 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:20:33,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:20:33,711 INFO L225 Difference]: With dead ends: 6003 [2021-03-11 14:20:33,712 INFO L226 Difference]: Without dead ends: 5986 [2021-03-11 14:20:33,712 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 359.3ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:20:33,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5986 states. [2021-03-11 14:20:33,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5986 to 3128. [2021-03-11 14:20:33,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3128 states, 3127 states have (on average 4.984010233450592) internal successors, (15585), 3127 states have internal predecessors, (15585), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:33,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3128 states to 3128 states and 15585 transitions. [2021-03-11 14:20:33,850 INFO L78 Accepts]: Start accepts. Automaton has 3128 states and 15585 transitions. Word has length 31 [2021-03-11 14:20:33,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:20:33,850 INFO L480 AbstractCegarLoop]: Abstraction has 3128 states and 15585 transitions. [2021-03-11 14:20:33,850 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:33,850 INFO L276 IsEmpty]: Start isEmpty. Operand 3128 states and 15585 transitions. [2021-03-11 14:20:33,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:20:33,855 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:20:33,855 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:20:33,855 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable325 [2021-03-11 14:20:33,855 INFO L428 AbstractCegarLoop]: === Iteration 327 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:20:33,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:20:33,855 INFO L82 PathProgramCache]: Analyzing trace with hash -101860359, now seen corresponding path program 318 times [2021-03-11 14:20:33,855 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:20:33,855 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1689814175] [2021-03-11 14:20:33,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:20:33,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:20:33,867 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:20:33,867 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:20:33,867 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:20:33,868 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:20:33,873 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:20:33,873 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:20:33,882 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:20:33,883 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:20:33,896 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:20:33,897 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:20:33,915 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:20:33,916 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:20:33,939 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:20:33,939 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:20:33,988 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:20:33,988 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:20:34,022 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:20:34,023 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:20:34,064 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:20:34,065 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:20:34,115 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:20:34,116 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:20:34,162 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:20:34,162 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1689814175] [2021-03-11 14:20:34,163 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:20:34,163 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:20:34,163 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1485207026] [2021-03-11 14:20:34,163 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:20:34,163 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:20:34,163 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:20:34,163 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:20:34,163 INFO L87 Difference]: Start difference. First operand 3128 states and 15585 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:34,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:20:34,359 INFO L93 Difference]: Finished difference Result 6004 states and 26776 transitions. [2021-03-11 14:20:34,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:20:34,360 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:20:34,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:20:34,372 INFO L225 Difference]: With dead ends: 6004 [2021-03-11 14:20:34,373 INFO L226 Difference]: Without dead ends: 5975 [2021-03-11 14:20:34,373 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 353.9ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:20:34,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5975 states. [2021-03-11 14:20:34,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5975 to 3117. [2021-03-11 14:20:34,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3117 states, 3116 states have (on average 4.993581514762516) internal successors, (15560), 3116 states have internal predecessors, (15560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:34,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3117 states to 3117 states and 15560 transitions. [2021-03-11 14:20:34,509 INFO L78 Accepts]: Start accepts. Automaton has 3117 states and 15560 transitions. Word has length 31 [2021-03-11 14:20:34,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:20:34,509 INFO L480 AbstractCegarLoop]: Abstraction has 3117 states and 15560 transitions. [2021-03-11 14:20:34,509 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:34,509 INFO L276 IsEmpty]: Start isEmpty. Operand 3117 states and 15560 transitions. [2021-03-11 14:20:34,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:20:34,514 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:20:34,514 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:20:34,515 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable326 [2021-03-11 14:20:34,515 INFO L428 AbstractCegarLoop]: === Iteration 328 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:20:34,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:20:34,515 INFO L82 PathProgramCache]: Analyzing trace with hash 1155384415, now seen corresponding path program 319 times [2021-03-11 14:20:34,515 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:20:34,515 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1334612802] [2021-03-11 14:20:34,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:20:34,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:20:34,526 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:20:34,527 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:20:34,527 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:20:34,528 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:20:34,533 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:20:34,533 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:20:34,542 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:20:34,543 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:20:34,556 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:20:34,557 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:20:34,575 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:20:34,576 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:20:34,600 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:20:34,601 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:20:34,650 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:20:34,650 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:20:34,710 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:20:34,710 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:20:34,752 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:20:34,752 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:20:34,800 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:20:34,801 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:20:34,845 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:20:34,845 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1334612802] [2021-03-11 14:20:34,845 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:20:34,845 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:20:34,845 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1264112628] [2021-03-11 14:20:34,845 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:20:34,845 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:20:34,845 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:20:34,845 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:20:34,845 INFO L87 Difference]: Start difference. First operand 3117 states and 15560 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:35,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:20:35,039 INFO L93 Difference]: Finished difference Result 6006 states and 26790 transitions. [2021-03-11 14:20:35,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:20:35,040 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:20:35,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:20:35,053 INFO L225 Difference]: With dead ends: 6006 [2021-03-11 14:20:35,053 INFO L226 Difference]: Without dead ends: 5990 [2021-03-11 14:20:35,053 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 374.9ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:20:35,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5990 states. [2021-03-11 14:20:35,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5990 to 3128. [2021-03-11 14:20:35,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3128 states, 3127 states have (on average 4.985929005436521) internal successors, (15591), 3127 states have internal predecessors, (15591), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:35,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3128 states to 3128 states and 15591 transitions. [2021-03-11 14:20:35,193 INFO L78 Accepts]: Start accepts. Automaton has 3128 states and 15591 transitions. Word has length 31 [2021-03-11 14:20:35,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:20:35,193 INFO L480 AbstractCegarLoop]: Abstraction has 3128 states and 15591 transitions. [2021-03-11 14:20:35,193 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:35,193 INFO L276 IsEmpty]: Start isEmpty. Operand 3128 states and 15591 transitions. [2021-03-11 14:20:35,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:20:35,198 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:20:35,198 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:20:35,198 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable327 [2021-03-11 14:20:35,198 INFO L428 AbstractCegarLoop]: === Iteration 329 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:20:35,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:20:35,198 INFO L82 PathProgramCache]: Analyzing trace with hash -534558489, now seen corresponding path program 320 times [2021-03-11 14:20:35,198 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:20:35,198 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [680161898] [2021-03-11 14:20:35,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:20:35,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:20:35,211 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:20:35,211 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:20:35,211 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:20:35,212 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:20:35,217 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:20:35,217 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:20:35,226 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:20:35,227 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:20:35,241 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:20:35,241 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:20:35,260 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:20:35,260 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:20:35,283 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:20:35,284 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:20:35,333 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:20:35,334 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:20:35,392 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:20:35,393 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:20:35,434 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:20:35,435 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:20:35,483 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:20:35,484 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:20:35,529 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:20:35,529 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [680161898] [2021-03-11 14:20:35,529 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:20:35,529 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:20:35,529 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1347056442] [2021-03-11 14:20:35,529 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:20:35,529 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:20:35,529 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:20:35,529 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:20:35,529 INFO L87 Difference]: Start difference. First operand 3128 states and 15591 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:35,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:20:35,732 INFO L93 Difference]: Finished difference Result 6007 states and 26787 transitions. [2021-03-11 14:20:35,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:20:35,733 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:20:35,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:20:35,746 INFO L225 Difference]: With dead ends: 6007 [2021-03-11 14:20:35,746 INFO L226 Difference]: Without dead ends: 5985 [2021-03-11 14:20:35,746 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 375.5ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:20:35,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5985 states. [2021-03-11 14:20:35,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5985 to 3123. [2021-03-11 14:20:35,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3123 states, 3122 states have (on average 4.989429852658552) internal successors, (15577), 3122 states have internal predecessors, (15577), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:35,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3123 states to 3123 states and 15577 transitions. [2021-03-11 14:20:35,880 INFO L78 Accepts]: Start accepts. Automaton has 3123 states and 15577 transitions. Word has length 31 [2021-03-11 14:20:35,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:20:35,880 INFO L480 AbstractCegarLoop]: Abstraction has 3123 states and 15577 transitions. [2021-03-11 14:20:35,880 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:35,880 INFO L276 IsEmpty]: Start isEmpty. Operand 3123 states and 15577 transitions. [2021-03-11 14:20:35,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:20:35,885 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:20:35,885 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:20:35,885 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable328 [2021-03-11 14:20:35,885 INFO L428 AbstractCegarLoop]: === Iteration 330 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:20:35,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:20:35,885 INFO L82 PathProgramCache]: Analyzing trace with hash 94606325, now seen corresponding path program 321 times [2021-03-11 14:20:35,885 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:20:35,885 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1585787607] [2021-03-11 14:20:35,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:20:35,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:20:35,897 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:20:35,897 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:20:35,898 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:20:35,898 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:20:35,903 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:20:35,904 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:20:35,913 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:20:35,914 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:20:35,927 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:20:35,928 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:20:35,947 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:20:35,948 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:20:35,971 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:20:35,972 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:20:36,022 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:20:36,023 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:20:36,082 INFO L142 QuantifierPusher]: treesize reduction 54, result has 55.4 percent of original size [2021-03-11 14:20:36,083 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-03-11 14:20:36,152 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:20:36,152 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:20:36,201 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:20:36,201 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:20:36,245 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:20:36,245 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1585787607] [2021-03-11 14:20:36,245 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:20:36,245 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:20:36,245 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [185756962] [2021-03-11 14:20:36,246 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:20:36,246 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:20:36,246 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:20:36,246 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:20:36,246 INFO L87 Difference]: Start difference. First operand 3123 states and 15577 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:36,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:20:36,452 INFO L93 Difference]: Finished difference Result 6012 states and 26796 transitions. [2021-03-11 14:20:36,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:20:36,453 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:20:36,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:20:36,466 INFO L225 Difference]: With dead ends: 6012 [2021-03-11 14:20:36,467 INFO L226 Difference]: Without dead ends: 5996 [2021-03-11 14:20:36,467 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 404.4ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:20:36,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5996 states. [2021-03-11 14:20:36,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5996 to 3129. [2021-03-11 14:20:36,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3129 states, 3128 states have (on average 4.983375959079284) internal successors, (15588), 3128 states have internal predecessors, (15588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:36,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3129 states to 3129 states and 15588 transitions. [2021-03-11 14:20:36,604 INFO L78 Accepts]: Start accepts. Automaton has 3129 states and 15588 transitions. Word has length 31 [2021-03-11 14:20:36,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:20:36,604 INFO L480 AbstractCegarLoop]: Abstraction has 3129 states and 15588 transitions. [2021-03-11 14:20:36,604 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:36,604 INFO L276 IsEmpty]: Start isEmpty. Operand 3129 states and 15588 transitions. [2021-03-11 14:20:36,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:20:36,609 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:20:36,609 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:20:36,609 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable329 [2021-03-11 14:20:36,609 INFO L428 AbstractCegarLoop]: === Iteration 331 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:20:36,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:20:36,609 INFO L82 PathProgramCache]: Analyzing trace with hash 587202087, now seen corresponding path program 322 times [2021-03-11 14:20:36,609 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:20:36,609 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [916054505] [2021-03-11 14:20:36,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:20:36,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:20:36,621 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:20:36,622 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:20:36,622 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:20:36,622 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:20:36,628 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:20:36,628 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:20:36,637 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:20:36,638 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:20:36,660 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:20:36,661 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:20:36,680 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:20:36,680 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:20:36,703 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:20:36,704 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:20:36,754 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:20:36,755 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:20:36,814 INFO L142 QuantifierPusher]: treesize reduction 54, result has 55.4 percent of original size [2021-03-11 14:20:36,815 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-03-11 14:20:36,887 INFO L142 QuantifierPusher]: treesize reduction 72, result has 49.7 percent of original size [2021-03-11 14:20:36,887 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-03-11 14:20:36,942 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:20:36,943 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:20:36,989 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:20:36,989 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [916054505] [2021-03-11 14:20:36,989 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:20:36,989 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:20:36,989 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1709178695] [2021-03-11 14:20:36,990 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:20:36,990 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:20:36,990 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:20:36,990 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:20:36,990 INFO L87 Difference]: Start difference. First operand 3129 states and 15588 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:37,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:20:37,212 INFO L93 Difference]: Finished difference Result 6018 states and 26802 transitions. [2021-03-11 14:20:37,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:20:37,213 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:20:37,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:20:37,227 INFO L225 Difference]: With dead ends: 6018 [2021-03-11 14:20:37,227 INFO L226 Difference]: Without dead ends: 5990 [2021-03-11 14:20:37,227 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 386.5ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:20:37,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5990 states. [2021-03-11 14:20:37,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5990 to 3123. [2021-03-11 14:20:37,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3123 states, 3122 states have (on average 4.98750800768738) internal successors, (15571), 3122 states have internal predecessors, (15571), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:37,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3123 states to 3123 states and 15571 transitions. [2021-03-11 14:20:37,363 INFO L78 Accepts]: Start accepts. Automaton has 3123 states and 15571 transitions. Word has length 31 [2021-03-11 14:20:37,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:20:37,363 INFO L480 AbstractCegarLoop]: Abstraction has 3123 states and 15571 transitions. [2021-03-11 14:20:37,363 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:37,363 INFO L276 IsEmpty]: Start isEmpty. Operand 3123 states and 15571 transitions. [2021-03-11 14:20:37,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:20:37,368 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:20:37,368 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:20:37,368 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable330 [2021-03-11 14:20:37,368 INFO L428 AbstractCegarLoop]: === Iteration 332 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:20:37,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:20:37,368 INFO L82 PathProgramCache]: Analyzing trace with hash 1851008245, now seen corresponding path program 323 times [2021-03-11 14:20:37,369 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:20:37,369 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1598120977] [2021-03-11 14:20:37,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:20:37,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:20:37,381 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:20:37,381 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:20:37,382 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:20:37,382 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:20:37,388 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:20:37,388 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:20:37,397 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:20:37,398 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:20:37,412 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:20:37,412 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:20:37,431 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:20:37,431 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:20:37,454 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:20:37,455 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:20:37,504 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:20:37,505 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:20:37,565 INFO L142 QuantifierPusher]: treesize reduction 54, result has 55.4 percent of original size [2021-03-11 14:20:37,566 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-03-11 14:20:37,640 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:20:37,641 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:20:37,691 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:20:37,692 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:20:37,738 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:20:37,739 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1598120977] [2021-03-11 14:20:37,739 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:20:37,739 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:20:37,739 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1564445994] [2021-03-11 14:20:37,739 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:20:37,739 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:20:37,739 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:20:37,739 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:20:37,739 INFO L87 Difference]: Start difference. First operand 3123 states and 15571 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:37,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:20:37,947 INFO L93 Difference]: Finished difference Result 6015 states and 26797 transitions. [2021-03-11 14:20:37,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:20:37,948 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:20:37,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:20:37,961 INFO L225 Difference]: With dead ends: 6015 [2021-03-11 14:20:37,961 INFO L226 Difference]: Without dead ends: 5998 [2021-03-11 14:20:37,962 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 415.6ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:20:38,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5998 states. [2021-03-11 14:20:38,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5998 to 3130. [2021-03-11 14:20:38,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3130 states, 3129 states have (on average 4.980504953659316) internal successors, (15584), 3129 states have internal predecessors, (15584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:38,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3130 states to 3130 states and 15584 transitions. [2021-03-11 14:20:38,099 INFO L78 Accepts]: Start accepts. Automaton has 3130 states and 15584 transitions. Word has length 31 [2021-03-11 14:20:38,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:20:38,099 INFO L480 AbstractCegarLoop]: Abstraction has 3130 states and 15584 transitions. [2021-03-11 14:20:38,099 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:38,099 INFO L276 IsEmpty]: Start isEmpty. Operand 3130 states and 15584 transitions. [2021-03-11 14:20:38,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:20:38,104 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:20:38,104 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:20:38,104 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable331 [2021-03-11 14:20:38,104 INFO L428 AbstractCegarLoop]: === Iteration 333 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:20:38,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:20:38,104 INFO L82 PathProgramCache]: Analyzing trace with hash -261420385, now seen corresponding path program 324 times [2021-03-11 14:20:38,104 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:20:38,104 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [261280940] [2021-03-11 14:20:38,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:20:38,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:20:38,116 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:20:38,116 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:20:38,117 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:20:38,117 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:20:38,122 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:20:38,123 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:20:38,132 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:20:38,132 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:20:38,151 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:20:38,152 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:20:38,177 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:20:38,177 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:20:38,206 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:20:38,206 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:20:38,257 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:20:38,257 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:20:38,320 INFO L142 QuantifierPusher]: treesize reduction 54, result has 55.4 percent of original size [2021-03-11 14:20:38,320 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-03-11 14:20:38,390 INFO L142 QuantifierPusher]: treesize reduction 72, result has 49.7 percent of original size [2021-03-11 14:20:38,391 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-03-11 14:20:38,441 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:20:38,442 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:20:38,486 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:20:38,487 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [261280940] [2021-03-11 14:20:38,487 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:20:38,487 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:20:38,487 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2036523982] [2021-03-11 14:20:38,487 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:20:38,487 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:20:38,487 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:20:38,487 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:20:38,487 INFO L87 Difference]: Start difference. First operand 3130 states and 15584 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:38,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:20:38,659 INFO L93 Difference]: Finished difference Result 6020 states and 26800 transitions. [2021-03-11 14:20:38,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:20:38,660 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:20:38,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:20:38,673 INFO L225 Difference]: With dead ends: 6020 [2021-03-11 14:20:38,673 INFO L226 Difference]: Without dead ends: 5985 [2021-03-11 14:20:38,673 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 394.1ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:20:38,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5985 states. [2021-03-11 14:20:38,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5985 to 3117. [2021-03-11 14:20:38,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3117 states, 3116 states have (on average 4.991655969191271) internal successors, (15554), 3116 states have internal predecessors, (15554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:38,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3117 states to 3117 states and 15554 transitions. [2021-03-11 14:20:38,810 INFO L78 Accepts]: Start accepts. Automaton has 3117 states and 15554 transitions. Word has length 31 [2021-03-11 14:20:38,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:20:38,810 INFO L480 AbstractCegarLoop]: Abstraction has 3117 states and 15554 transitions. [2021-03-11 14:20:38,810 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:38,810 INFO L276 IsEmpty]: Start isEmpty. Operand 3117 states and 15554 transitions. [2021-03-11 14:20:38,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:20:38,815 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:20:38,815 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:20:38,815 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable332 [2021-03-11 14:20:38,815 INFO L428 AbstractCegarLoop]: === Iteration 334 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:20:38,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:20:38,815 INFO L82 PathProgramCache]: Analyzing trace with hash 462326751, now seen corresponding path program 325 times [2021-03-11 14:20:38,815 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:20:38,815 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1039571008] [2021-03-11 14:20:38,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:20:38,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:20:38,827 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:20:38,827 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:20:38,828 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:20:38,828 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:20:38,833 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:20:38,834 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:20:38,843 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:20:38,844 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:20:38,857 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:20:38,858 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:20:38,877 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:20:38,878 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:20:38,902 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:20:38,902 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:20:38,952 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:20:38,953 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:20:39,012 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:20:39,012 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:20:39,053 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:20:39,054 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:20:39,104 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:20:39,105 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:20:39,150 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:20:39,150 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1039571008] [2021-03-11 14:20:39,150 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:20:39,150 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:20:39,150 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1111610573] [2021-03-11 14:20:39,150 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:20:39,150 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:20:39,150 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:20:39,150 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:20:39,150 INFO L87 Difference]: Start difference. First operand 3117 states and 15554 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:39,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:20:39,371 INFO L93 Difference]: Finished difference Result 6009 states and 26791 transitions. [2021-03-11 14:20:39,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:20:39,372 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:20:39,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:20:39,385 INFO L225 Difference]: With dead ends: 6009 [2021-03-11 14:20:39,386 INFO L226 Difference]: Without dead ends: 5993 [2021-03-11 14:20:39,386 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 381.6ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:20:39,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5993 states. [2021-03-11 14:20:39,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5993 to 3128. [2021-03-11 14:20:39,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3128 states, 3127 states have (on average 4.984010233450592) internal successors, (15585), 3127 states have internal predecessors, (15585), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:39,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3128 states to 3128 states and 15585 transitions. [2021-03-11 14:20:39,525 INFO L78 Accepts]: Start accepts. Automaton has 3128 states and 15585 transitions. Word has length 31 [2021-03-11 14:20:39,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:20:39,525 INFO L480 AbstractCegarLoop]: Abstraction has 3128 states and 15585 transitions. [2021-03-11 14:20:39,525 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:39,525 INFO L276 IsEmpty]: Start isEmpty. Operand 3128 states and 15585 transitions. [2021-03-11 14:20:39,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:20:39,530 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:20:39,530 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:20:39,530 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable333 [2021-03-11 14:20:39,530 INFO L428 AbstractCegarLoop]: === Iteration 335 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:20:39,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:20:39,530 INFO L82 PathProgramCache]: Analyzing trace with hash -2072587605, now seen corresponding path program 326 times [2021-03-11 14:20:39,530 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:20:39,531 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1064045448] [2021-03-11 14:20:39,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:20:39,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:20:39,542 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:20:39,543 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:20:39,543 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:20:39,543 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:20:39,549 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:20:39,549 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:20:39,560 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:20:39,560 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:20:39,574 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:20:39,575 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:20:39,595 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:20:39,595 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:20:39,620 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:20:39,620 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:20:39,673 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:20:39,674 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:20:39,745 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:20:39,746 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:20:39,795 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:20:39,796 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:20:39,856 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:20:39,857 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:20:39,908 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:20:39,908 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1064045448] [2021-03-11 14:20:39,908 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:20:39,908 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:20:39,908 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1089808007] [2021-03-11 14:20:39,908 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:20:39,908 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:20:39,908 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:20:39,908 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:20:39,909 INFO L87 Difference]: Start difference. First operand 3128 states and 15585 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:40,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:20:40,128 INFO L93 Difference]: Finished difference Result 6011 states and 26790 transitions. [2021-03-11 14:20:40,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:20:40,129 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:20:40,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:20:40,143 INFO L225 Difference]: With dead ends: 6011 [2021-03-11 14:20:40,144 INFO L226 Difference]: Without dead ends: 5988 [2021-03-11 14:20:40,144 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 426.6ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:20:40,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5988 states. [2021-03-11 14:20:40,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5988 to 3123. [2021-03-11 14:20:40,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3123 states, 3122 states have (on average 4.98750800768738) internal successors, (15571), 3122 states have internal predecessors, (15571), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:40,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3123 states to 3123 states and 15571 transitions. [2021-03-11 14:20:40,288 INFO L78 Accepts]: Start accepts. Automaton has 3123 states and 15571 transitions. Word has length 31 [2021-03-11 14:20:40,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:20:40,288 INFO L480 AbstractCegarLoop]: Abstraction has 3123 states and 15571 transitions. [2021-03-11 14:20:40,288 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:40,289 INFO L276 IsEmpty]: Start isEmpty. Operand 3123 states and 15571 transitions. [2021-03-11 14:20:40,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:20:40,294 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:20:40,294 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:20:40,294 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable334 [2021-03-11 14:20:40,294 INFO L428 AbstractCegarLoop]: === Iteration 336 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:20:40,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:20:40,294 INFO L82 PathProgramCache]: Analyzing trace with hash -174140103, now seen corresponding path program 327 times [2021-03-11 14:20:40,294 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:20:40,294 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1713988037] [2021-03-11 14:20:40,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:20:40,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:20:40,306 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:20:40,307 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:20:40,308 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:20:40,308 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:20:40,314 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:20:40,315 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:20:40,325 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:20:40,326 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:20:40,341 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:20:40,342 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:20:40,363 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:20:40,363 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:20:40,389 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:20:40,390 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:20:40,445 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:20:40,445 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:20:40,509 INFO L142 QuantifierPusher]: treesize reduction 54, result has 55.4 percent of original size [2021-03-11 14:20:40,510 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-03-11 14:20:40,578 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:20:40,578 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:20:40,631 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:20:40,632 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:20:40,680 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:20:40,681 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1713988037] [2021-03-11 14:20:40,681 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:20:40,681 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:20:40,681 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [750132246] [2021-03-11 14:20:40,681 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:20:40,681 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:20:40,681 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:20:40,681 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:20:40,681 INFO L87 Difference]: Start difference. First operand 3123 states and 15571 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:40,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:20:40,904 INFO L93 Difference]: Finished difference Result 6014 states and 26795 transitions. [2021-03-11 14:20:40,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:20:40,905 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:20:40,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:20:40,918 INFO L225 Difference]: With dead ends: 6014 [2021-03-11 14:20:40,919 INFO L226 Difference]: Without dead ends: 5998 [2021-03-11 14:20:40,919 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 434.9ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:20:41,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5998 states. [2021-03-11 14:20:41,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5998 to 3129. [2021-03-11 14:20:41,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3129 states, 3128 states have (on average 4.981457800511509) internal successors, (15582), 3128 states have internal predecessors, (15582), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:41,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3129 states to 3129 states and 15582 transitions. [2021-03-11 14:20:41,064 INFO L78 Accepts]: Start accepts. Automaton has 3129 states and 15582 transitions. Word has length 31 [2021-03-11 14:20:41,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:20:41,064 INFO L480 AbstractCegarLoop]: Abstraction has 3129 states and 15582 transitions. [2021-03-11 14:20:41,064 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:41,064 INFO L276 IsEmpty]: Start isEmpty. Operand 3129 states and 15582 transitions. [2021-03-11 14:20:41,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:20:41,069 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:20:41,069 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:20:41,069 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable335 [2021-03-11 14:20:41,069 INFO L428 AbstractCegarLoop]: === Iteration 337 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:20:41,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:20:41,070 INFO L82 PathProgramCache]: Analyzing trace with hash 318455659, now seen corresponding path program 328 times [2021-03-11 14:20:41,070 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:20:41,070 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [605795585] [2021-03-11 14:20:41,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:20:41,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:20:41,082 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:20:41,082 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:20:41,083 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:20:41,083 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:20:41,089 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:20:41,089 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:20:41,099 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:20:41,100 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:20:41,115 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:20:41,116 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:20:41,137 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:20:41,137 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:20:41,163 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:20:41,164 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:20:41,218 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:20:41,219 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:20:41,283 INFO L142 QuantifierPusher]: treesize reduction 54, result has 55.4 percent of original size [2021-03-11 14:20:41,283 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-03-11 14:20:41,352 INFO L142 QuantifierPusher]: treesize reduction 72, result has 49.7 percent of original size [2021-03-11 14:20:41,353 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-03-11 14:20:41,407 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:20:41,408 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:20:41,453 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:20:41,453 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [605795585] [2021-03-11 14:20:41,453 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:20:41,453 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:20:41,453 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1841796297] [2021-03-11 14:20:41,454 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:20:41,454 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:20:41,454 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:20:41,454 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:20:41,454 INFO L87 Difference]: Start difference. First operand 3129 states and 15582 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:41,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:20:41,623 INFO L93 Difference]: Finished difference Result 6020 states and 26801 transitions. [2021-03-11 14:20:41,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:20:41,623 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:20:41,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:20:41,636 INFO L225 Difference]: With dead ends: 6020 [2021-03-11 14:20:41,637 INFO L226 Difference]: Without dead ends: 5992 [2021-03-11 14:20:41,637 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 394.4ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:20:41,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5992 states. [2021-03-11 14:20:41,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5992 to 3123. [2021-03-11 14:20:41,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3123 states, 3122 states have (on average 4.985586162716207) internal successors, (15565), 3122 states have internal predecessors, (15565), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:41,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3123 states to 3123 states and 15565 transitions. [2021-03-11 14:20:41,773 INFO L78 Accepts]: Start accepts. Automaton has 3123 states and 15565 transitions. Word has length 31 [2021-03-11 14:20:41,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:20:41,773 INFO L480 AbstractCegarLoop]: Abstraction has 3123 states and 15565 transitions. [2021-03-11 14:20:41,773 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:41,773 INFO L276 IsEmpty]: Start isEmpty. Operand 3123 states and 15565 transitions. [2021-03-11 14:20:41,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:20:41,778 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:20:41,778 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:20:41,778 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable336 [2021-03-11 14:20:41,778 INFO L428 AbstractCegarLoop]: === Iteration 338 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:20:41,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:20:41,778 INFO L82 PathProgramCache]: Analyzing trace with hash 312979129, now seen corresponding path program 329 times [2021-03-11 14:20:41,778 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:20:41,778 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1476050705] [2021-03-11 14:20:41,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:20:41,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:20:41,790 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:20:41,790 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:20:41,790 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:20:41,791 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:20:41,796 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:20:41,797 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:20:41,806 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:20:41,806 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:20:41,821 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:20:41,821 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:20:41,840 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:20:41,841 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:20:41,868 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:20:41,869 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:20:41,930 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:20:41,930 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:20:41,998 INFO L142 QuantifierPusher]: treesize reduction 54, result has 55.4 percent of original size [2021-03-11 14:20:41,998 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-03-11 14:20:42,077 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:20:42,078 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:20:42,130 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:20:42,130 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:20:42,178 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:20:42,178 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1476050705] [2021-03-11 14:20:42,178 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:20:42,178 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:20:42,178 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [682533616] [2021-03-11 14:20:42,178 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:20:42,178 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:20:42,178 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:20:42,178 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:20:42,179 INFO L87 Difference]: Start difference. First operand 3123 states and 15565 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:42,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:20:42,420 INFO L93 Difference]: Finished difference Result 6020 states and 26803 transitions. [2021-03-11 14:20:42,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:20:42,421 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:20:42,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:20:42,435 INFO L225 Difference]: With dead ends: 6020 [2021-03-11 14:20:42,435 INFO L226 Difference]: Without dead ends: 6002 [2021-03-11 14:20:42,435 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 447.7ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:20:42,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6002 states. [2021-03-11 14:20:42,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6002 to 3131. [2021-03-11 14:20:42,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3131 states, 3130 states have (on average 4.977635782747604) internal successors, (15580), 3130 states have internal predecessors, (15580), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:42,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3131 states to 3131 states and 15580 transitions. [2021-03-11 14:20:42,576 INFO L78 Accepts]: Start accepts. Automaton has 3131 states and 15580 transitions. Word has length 31 [2021-03-11 14:20:42,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:20:42,576 INFO L480 AbstractCegarLoop]: Abstraction has 3131 states and 15580 transitions. [2021-03-11 14:20:42,576 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:42,576 INFO L276 IsEmpty]: Start isEmpty. Operand 3131 states and 15580 transitions. [2021-03-11 14:20:42,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:20:42,581 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:20:42,581 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:20:42,581 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable337 [2021-03-11 14:20:42,581 INFO L428 AbstractCegarLoop]: === Iteration 339 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:20:42,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:20:42,581 INFO L82 PathProgramCache]: Analyzing trace with hash -954478049, now seen corresponding path program 330 times [2021-03-11 14:20:42,581 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:20:42,581 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1344715815] [2021-03-11 14:20:42,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:20:42,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:20:42,593 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:20:42,594 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:20:42,594 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:20:42,594 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:20:42,600 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:20:42,600 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:20:42,610 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:20:42,610 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:20:42,624 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:20:42,625 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:20:42,644 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:20:42,644 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:20:42,668 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:20:42,669 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:20:42,726 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:20:42,727 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:20:42,799 INFO L142 QuantifierPusher]: treesize reduction 54, result has 55.4 percent of original size [2021-03-11 14:20:42,800 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-03-11 14:20:42,875 INFO L142 QuantifierPusher]: treesize reduction 72, result has 49.7 percent of original size [2021-03-11 14:20:42,875 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-03-11 14:20:42,928 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:20:42,929 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:20:42,977 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:20:42,977 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1344715815] [2021-03-11 14:20:42,977 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:20:42,977 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:20:42,977 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1298188142] [2021-03-11 14:20:42,977 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:20:42,977 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:20:42,977 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:20:42,977 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:20:42,977 INFO L87 Difference]: Start difference. First operand 3131 states and 15580 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:43,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:20:43,173 INFO L93 Difference]: Finished difference Result 6024 states and 26803 transitions. [2021-03-11 14:20:43,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:20:43,174 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:20:43,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:20:43,187 INFO L225 Difference]: With dead ends: 6024 [2021-03-11 14:20:43,187 INFO L226 Difference]: Without dead ends: 5988 [2021-03-11 14:20:43,187 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 409.0ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:20:43,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5988 states. [2021-03-11 14:20:43,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5988 to 3117. [2021-03-11 14:20:43,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3117 states, 3116 states have (on average 4.989730423620026) internal successors, (15548), 3116 states have internal predecessors, (15548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:43,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3117 states to 3117 states and 15548 transitions. [2021-03-11 14:20:43,323 INFO L78 Accepts]: Start accepts. Automaton has 3117 states and 15548 transitions. Word has length 31 [2021-03-11 14:20:43,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:20:43,323 INFO L480 AbstractCegarLoop]: Abstraction has 3117 states and 15548 transitions. [2021-03-11 14:20:43,323 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:43,323 INFO L276 IsEmpty]: Start isEmpty. Operand 3117 states and 15548 transitions. [2021-03-11 14:20:43,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:20:43,327 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:20:43,327 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:20:43,327 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable338 [2021-03-11 14:20:43,328 INFO L428 AbstractCegarLoop]: === Iteration 340 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:20:43,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:20:43,328 INFO L82 PathProgramCache]: Analyzing trace with hash 1681235815, now seen corresponding path program 331 times [2021-03-11 14:20:43,328 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:20:43,328 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1056950716] [2021-03-11 14:20:43,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:20:43,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:20:43,339 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:20:43,340 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:20:43,340 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:20:43,341 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:20:43,346 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:20:43,347 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:20:43,358 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:20:43,358 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:20:43,373 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:20:43,374 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:20:43,395 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:20:43,395 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:20:43,420 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:20:43,421 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:20:43,471 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:20:43,472 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:20:43,533 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:20:43,533 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:20:43,576 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:20:43,576 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:20:43,627 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:20:43,628 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:20:43,683 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:20:43,683 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1056950716] [2021-03-11 14:20:43,683 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:20:43,683 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:20:43,683 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [477630946] [2021-03-11 14:20:43,683 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:20:43,683 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:20:43,683 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:20:43,684 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:20:43,684 INFO L87 Difference]: Start difference. First operand 3117 states and 15548 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:43,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:20:43,928 INFO L93 Difference]: Finished difference Result 6016 states and 26804 transitions. [2021-03-11 14:20:43,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:20:43,929 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:20:43,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:20:43,942 INFO L225 Difference]: With dead ends: 6016 [2021-03-11 14:20:43,942 INFO L226 Difference]: Without dead ends: 5999 [2021-03-11 14:20:43,942 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 405.9ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:20:44,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5999 states. [2021-03-11 14:20:44,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5999 to 3130. [2021-03-11 14:20:44,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3130 states, 3129 states have (on average 4.9808245445829336) internal successors, (15585), 3129 states have internal predecessors, (15585), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:44,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3130 states to 3130 states and 15585 transitions. [2021-03-11 14:20:44,078 INFO L78 Accepts]: Start accepts. Automaton has 3130 states and 15585 transitions. Word has length 31 [2021-03-11 14:20:44,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:20:44,078 INFO L480 AbstractCegarLoop]: Abstraction has 3130 states and 15585 transitions. [2021-03-11 14:20:44,078 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:44,078 INFO L276 IsEmpty]: Start isEmpty. Operand 3130 states and 15585 transitions. [2021-03-11 14:20:44,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:20:44,083 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:20:44,083 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:20:44,083 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable339 [2021-03-11 14:20:44,083 INFO L428 AbstractCegarLoop]: === Iteration 341 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:20:44,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:20:44,083 INFO L82 PathProgramCache]: Analyzing trace with hash 836264363, now seen corresponding path program 332 times [2021-03-11 14:20:44,083 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:20:44,083 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [158394590] [2021-03-11 14:20:44,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:20:44,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:20:44,095 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:20:44,095 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:20:44,096 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:20:44,096 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:20:44,102 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:20:44,102 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:20:44,112 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:20:44,112 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:20:44,126 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:20:44,126 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:20:44,146 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:20:44,146 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:20:44,170 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:20:44,171 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:20:44,221 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:20:44,222 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:20:44,283 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:20:44,284 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:20:44,327 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:20:44,328 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:20:44,378 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:20:44,378 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:20:44,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:20:44,424 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [158394590] [2021-03-11 14:20:44,424 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:20:44,424 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:20:44,424 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1171154934] [2021-03-11 14:20:44,424 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:20:44,424 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:20:44,424 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:20:44,424 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:20:44,424 INFO L87 Difference]: Start difference. First operand 3130 states and 15585 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:44,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:20:44,643 INFO L93 Difference]: Finished difference Result 6017 states and 26800 transitions. [2021-03-11 14:20:44,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:20:44,644 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:20:44,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:20:44,657 INFO L225 Difference]: With dead ends: 6017 [2021-03-11 14:20:44,657 INFO L226 Difference]: Without dead ends: 5993 [2021-03-11 14:20:44,658 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 387.1ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:20:44,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5993 states. [2021-03-11 14:20:44,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5993 to 3124. [2021-03-11 14:20:44,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3124 states, 3123 states have (on average 4.984950368235671) internal successors, (15568), 3123 states have internal predecessors, (15568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:44,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3124 states to 3124 states and 15568 transitions. [2021-03-11 14:20:44,794 INFO L78 Accepts]: Start accepts. Automaton has 3124 states and 15568 transitions. Word has length 31 [2021-03-11 14:20:44,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:20:44,794 INFO L480 AbstractCegarLoop]: Abstraction has 3124 states and 15568 transitions. [2021-03-11 14:20:44,794 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:44,794 INFO L276 IsEmpty]: Start isEmpty. Operand 3124 states and 15568 transitions. [2021-03-11 14:20:44,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:20:44,799 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:20:44,799 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:20:44,799 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable340 [2021-03-11 14:20:44,799 INFO L428 AbstractCegarLoop]: === Iteration 342 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:20:44,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:20:44,799 INFO L82 PathProgramCache]: Analyzing trace with hash 1044768961, now seen corresponding path program 333 times [2021-03-11 14:20:44,799 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:20:44,799 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [572779324] [2021-03-11 14:20:44,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:20:44,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:20:44,811 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:20:44,811 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:20:44,812 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:20:44,812 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:20:44,819 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:20:44,819 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:20:44,829 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:20:44,830 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:20:44,847 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:20:44,848 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:20:44,872 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:20:44,872 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:20:44,902 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:20:44,902 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:20:44,962 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:20:44,963 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:20:45,024 INFO L142 QuantifierPusher]: treesize reduction 54, result has 55.4 percent of original size [2021-03-11 14:20:45,025 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-03-11 14:20:45,096 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:20:45,097 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:20:45,147 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:20:45,148 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:20:45,201 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:20:45,201 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [572779324] [2021-03-11 14:20:45,201 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:20:45,201 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:20:45,201 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [30466805] [2021-03-11 14:20:45,201 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:20:45,201 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:20:45,202 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:20:45,202 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:20:45,202 INFO L87 Difference]: Start difference. First operand 3124 states and 15568 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:45,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:20:45,531 INFO L93 Difference]: Finished difference Result 6021 states and 26807 transitions. [2021-03-11 14:20:45,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:20:45,532 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:20:45,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:20:45,546 INFO L225 Difference]: With dead ends: 6021 [2021-03-11 14:20:45,546 INFO L226 Difference]: Without dead ends: 6004 [2021-03-11 14:20:45,546 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 446.6ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:20:45,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6004 states. [2021-03-11 14:20:45,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6004 to 3131. [2021-03-11 14:20:45,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3131 states, 3130 states have (on average 4.977955271565495) internal successors, (15581), 3130 states have internal predecessors, (15581), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:45,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3131 states to 3131 states and 15581 transitions. [2021-03-11 14:20:45,685 INFO L78 Accepts]: Start accepts. Automaton has 3131 states and 15581 transitions. Word has length 31 [2021-03-11 14:20:45,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:20:45,685 INFO L480 AbstractCegarLoop]: Abstraction has 3131 states and 15581 transitions. [2021-03-11 14:20:45,685 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:45,685 INFO L276 IsEmpty]: Start isEmpty. Operand 3131 states and 15581 transitions. [2021-03-11 14:20:45,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:20:45,691 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:20:45,691 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:20:45,691 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable341 [2021-03-11 14:20:45,691 INFO L428 AbstractCegarLoop]: === Iteration 343 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:20:45,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:20:45,692 INFO L82 PathProgramCache]: Analyzing trace with hash -1067659669, now seen corresponding path program 334 times [2021-03-11 14:20:45,692 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:20:45,692 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [661570409] [2021-03-11 14:20:45,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:20:45,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:20:45,704 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:20:45,704 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:20:45,705 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:20:45,705 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:20:45,710 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:20:45,711 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:20:45,720 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:20:45,721 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:20:45,735 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:20:45,735 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:20:45,755 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:20:45,755 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:20:45,780 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:20:45,780 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:20:45,832 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:20:45,832 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:20:45,894 INFO L142 QuantifierPusher]: treesize reduction 54, result has 55.4 percent of original size [2021-03-11 14:20:45,895 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-03-11 14:20:45,967 INFO L142 QuantifierPusher]: treesize reduction 72, result has 49.7 percent of original size [2021-03-11 14:20:45,968 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-03-11 14:20:46,020 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:20:46,021 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:20:46,071 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:20:46,071 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [661570409] [2021-03-11 14:20:46,071 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:20:46,071 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:20:46,071 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [67924286] [2021-03-11 14:20:46,071 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:20:46,071 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:20:46,071 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:20:46,071 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:20:46,071 INFO L87 Difference]: Start difference. First operand 3131 states and 15581 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:46,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:20:46,269 INFO L93 Difference]: Finished difference Result 6026 states and 26810 transitions. [2021-03-11 14:20:46,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:20:46,270 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:20:46,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:20:46,282 INFO L225 Difference]: With dead ends: 6026 [2021-03-11 14:20:46,283 INFO L226 Difference]: Without dead ends: 5997 [2021-03-11 14:20:46,283 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 391.6ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:20:46,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5997 states. [2021-03-11 14:20:46,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5997 to 3124. [2021-03-11 14:20:46,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3124 states, 3123 states have (on average 4.982708933717579) internal successors, (15561), 3123 states have internal predecessors, (15561), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:46,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3124 states to 3124 states and 15561 transitions. [2021-03-11 14:20:46,418 INFO L78 Accepts]: Start accepts. Automaton has 3124 states and 15561 transitions. Word has length 31 [2021-03-11 14:20:46,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:20:46,418 INFO L480 AbstractCegarLoop]: Abstraction has 3124 states and 15561 transitions. [2021-03-11 14:20:46,418 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:46,418 INFO L276 IsEmpty]: Start isEmpty. Operand 3124 states and 15561 transitions. [2021-03-11 14:20:46,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:20:46,423 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:20:46,423 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:20:46,423 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable342 [2021-03-11 14:20:46,423 INFO L428 AbstractCegarLoop]: === Iteration 344 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:20:46,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:20:46,423 INFO L82 PathProgramCache]: Analyzing trace with hash -224513727, now seen corresponding path program 335 times [2021-03-11 14:20:46,423 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:20:46,423 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1665858312] [2021-03-11 14:20:46,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:20:46,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:20:46,435 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:20:46,436 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:20:46,436 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:20:46,436 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:20:46,442 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:20:46,442 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:20:46,452 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:20:46,452 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:20:46,467 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:20:46,467 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:20:46,487 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:20:46,487 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:20:46,512 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:20:46,512 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:20:46,563 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:20:46,564 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:20:46,626 INFO L142 QuantifierPusher]: treesize reduction 54, result has 55.4 percent of original size [2021-03-11 14:20:46,626 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-03-11 14:20:46,699 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:20:46,700 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:20:46,751 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:20:46,751 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:20:46,797 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:20:46,797 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1665858312] [2021-03-11 14:20:46,798 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:20:46,798 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:20:46,798 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2109046597] [2021-03-11 14:20:46,798 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:20:46,798 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:20:46,798 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:20:46,798 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:20:46,798 INFO L87 Difference]: Start difference. First operand 3124 states and 15561 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:47,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:20:47,021 INFO L93 Difference]: Finished difference Result 6024 states and 26807 transitions. [2021-03-11 14:20:47,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:20:47,022 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:20:47,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:20:47,035 INFO L225 Difference]: With dead ends: 6024 [2021-03-11 14:20:47,035 INFO L226 Difference]: Without dead ends: 6006 [2021-03-11 14:20:47,035 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 420.3ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:20:47,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6006 states. [2021-03-11 14:20:47,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6006 to 3132. [2021-03-11 14:20:47,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3132 states, 3131 states have (on average 4.9747684445863944) internal successors, (15576), 3131 states have internal predecessors, (15576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:47,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3132 states to 3132 states and 15576 transitions. [2021-03-11 14:20:47,174 INFO L78 Accepts]: Start accepts. Automaton has 3132 states and 15576 transitions. Word has length 31 [2021-03-11 14:20:47,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:20:47,174 INFO L480 AbstractCegarLoop]: Abstraction has 3132 states and 15576 transitions. [2021-03-11 14:20:47,174 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:47,174 INFO L276 IsEmpty]: Start isEmpty. Operand 3132 states and 15576 transitions. [2021-03-11 14:20:47,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:20:47,179 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:20:47,179 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:20:47,179 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable343 [2021-03-11 14:20:47,179 INFO L428 AbstractCegarLoop]: === Iteration 345 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:20:47,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:20:47,179 INFO L82 PathProgramCache]: Analyzing trace with hash -1491970905, now seen corresponding path program 336 times [2021-03-11 14:20:47,179 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:20:47,179 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1358148879] [2021-03-11 14:20:47,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:20:47,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:20:47,191 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:20:47,192 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:20:47,192 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:20:47,193 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:20:47,201 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:20:47,201 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:20:47,214 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:20:47,214 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:20:47,232 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:20:47,232 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:20:47,254 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:20:47,255 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:20:47,286 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:20:47,287 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:20:47,351 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:20:47,352 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:20:47,421 INFO L142 QuantifierPusher]: treesize reduction 54, result has 55.4 percent of original size [2021-03-11 14:20:47,422 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-03-11 14:20:47,497 INFO L142 QuantifierPusher]: treesize reduction 72, result has 49.7 percent of original size [2021-03-11 14:20:47,497 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-03-11 14:20:47,550 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:20:47,550 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:20:47,603 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:20:47,603 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1358148879] [2021-03-11 14:20:47,604 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:20:47,604 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:20:47,604 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [53974264] [2021-03-11 14:20:47,604 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:20:47,604 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:20:47,604 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:20:47,604 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:20:47,604 INFO L87 Difference]: Start difference. First operand 3132 states and 15576 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:47,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:20:47,781 INFO L93 Difference]: Finished difference Result 6028 states and 26807 transitions. [2021-03-11 14:20:47,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:20:47,782 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:20:47,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:20:47,795 INFO L225 Difference]: With dead ends: 6028 [2021-03-11 14:20:47,795 INFO L226 Difference]: Without dead ends: 5985 [2021-03-11 14:20:47,795 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 435.6ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:20:47,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5985 states. [2021-03-11 14:20:47,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5985 to 3111. [2021-03-11 14:20:47,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3111 states, 3110 states have (on average 4.993890675241158) internal successors, (15531), 3110 states have internal predecessors, (15531), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:47,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3111 states to 3111 states and 15531 transitions. [2021-03-11 14:20:47,934 INFO L78 Accepts]: Start accepts. Automaton has 3111 states and 15531 transitions. Word has length 31 [2021-03-11 14:20:47,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:20:47,934 INFO L480 AbstractCegarLoop]: Abstraction has 3111 states and 15531 transitions. [2021-03-11 14:20:47,934 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:47,934 INFO L276 IsEmpty]: Start isEmpty. Operand 3111 states and 15531 transitions. [2021-03-11 14:20:47,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:20:47,939 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:20:47,939 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:20:47,939 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable344 [2021-03-11 14:20:47,939 INFO L428 AbstractCegarLoop]: === Iteration 346 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:20:47,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:20:47,939 INFO L82 PathProgramCache]: Analyzing trace with hash -1868213383, now seen corresponding path program 337 times [2021-03-11 14:20:47,939 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:20:47,939 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [930340621] [2021-03-11 14:20:47,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:20:47,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:20:47,951 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:20:47,951 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:20:47,952 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:20:47,952 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:20:47,958 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:20:47,958 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:20:47,968 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:20:47,968 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:20:47,985 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:20:47,986 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:20:48,007 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:20:48,007 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:20:48,032 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:20:48,032 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:20:48,063 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:20:48,063 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:20:48,100 INFO L142 QuantifierPusher]: treesize reduction 45, result has 59.1 percent of original size [2021-03-11 14:20:48,100 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:20:48,169 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:20:48,169 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:20:48,220 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:20:48,221 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:20:48,267 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:20:48,267 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [930340621] [2021-03-11 14:20:48,267 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:20:48,268 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:20:48,268 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1583315534] [2021-03-11 14:20:48,268 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:20:48,268 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:20:48,268 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:20:48,268 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:20:48,268 INFO L87 Difference]: Start difference. First operand 3111 states and 15531 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:48,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:20:48,506 INFO L93 Difference]: Finished difference Result 6036 states and 26873 transitions. [2021-03-11 14:20:48,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:20:48,507 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:20:48,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:20:48,520 INFO L225 Difference]: With dead ends: 6036 [2021-03-11 14:20:48,521 INFO L226 Difference]: Without dead ends: 6016 [2021-03-11 14:20:48,521 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 383.8ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:20:48,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6016 states. [2021-03-11 14:20:48,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6016 to 3131. [2021-03-11 14:20:48,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3131 states, 3130 states have (on average 4.9843450479233224) internal successors, (15601), 3130 states have internal predecessors, (15601), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:48,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3131 states to 3131 states and 15601 transitions. [2021-03-11 14:20:48,657 INFO L78 Accepts]: Start accepts. Automaton has 3131 states and 15601 transitions. Word has length 31 [2021-03-11 14:20:48,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:20:48,658 INFO L480 AbstractCegarLoop]: Abstraction has 3131 states and 15601 transitions. [2021-03-11 14:20:48,658 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:48,658 INFO L276 IsEmpty]: Start isEmpty. Operand 3131 states and 15601 transitions. [2021-03-11 14:20:48,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:20:48,662 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:20:48,662 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:20:48,662 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable345 [2021-03-11 14:20:48,663 INFO L428 AbstractCegarLoop]: === Iteration 347 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:20:48,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:20:48,663 INFO L82 PathProgramCache]: Analyzing trace with hash 1581782461, now seen corresponding path program 338 times [2021-03-11 14:20:48,663 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:20:48,663 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1009817343] [2021-03-11 14:20:48,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:20:48,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:20:48,679 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:20:48,679 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:20:48,680 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:20:48,680 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:20:48,685 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:20:48,686 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:20:48,696 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:20:48,696 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:20:48,711 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:20:48,711 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:20:48,731 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:20:48,732 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:20:48,760 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:20:48,760 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:20:48,794 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:20:48,794 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:20:48,831 INFO L142 QuantifierPusher]: treesize reduction 45, result has 59.1 percent of original size [2021-03-11 14:20:48,832 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:20:48,901 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:20:48,902 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:20:48,952 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:20:48,953 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:20:48,999 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:20:48,999 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1009817343] [2021-03-11 14:20:48,999 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:20:48,999 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:20:48,999 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [27129586] [2021-03-11 14:20:48,999 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:20:48,999 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:20:49,000 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:20:49,000 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:20:49,000 INFO L87 Difference]: Start difference. First operand 3131 states and 15601 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:49,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:20:49,201 INFO L93 Difference]: Finished difference Result 6033 states and 26861 transitions. [2021-03-11 14:20:49,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:20:49,202 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:20:49,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:20:49,215 INFO L225 Difference]: With dead ends: 6033 [2021-03-11 14:20:49,215 INFO L226 Difference]: Without dead ends: 6010 [2021-03-11 14:20:49,215 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 379.9ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:20:49,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6010 states. [2021-03-11 14:20:49,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6010 to 3125. [2021-03-11 14:20:49,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3125 states, 3124 states have (on average 4.988476312419975) internal successors, (15584), 3124 states have internal predecessors, (15584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:49,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3125 states to 3125 states and 15584 transitions. [2021-03-11 14:20:49,350 INFO L78 Accepts]: Start accepts. Automaton has 3125 states and 15584 transitions. Word has length 31 [2021-03-11 14:20:49,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:20:49,350 INFO L480 AbstractCegarLoop]: Abstraction has 3125 states and 15584 transitions. [2021-03-11 14:20:49,350 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:49,350 INFO L276 IsEmpty]: Start isEmpty. Operand 3125 states and 15584 transitions. [2021-03-11 14:20:49,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:20:49,355 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:20:49,355 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:20:49,355 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable346 [2021-03-11 14:20:49,355 INFO L428 AbstractCegarLoop]: === Iteration 348 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:20:49,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:20:49,355 INFO L82 PathProgramCache]: Analyzing trace with hash 2002442677, now seen corresponding path program 339 times [2021-03-11 14:20:49,356 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:20:49,356 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2030442615] [2021-03-11 14:20:49,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:20:49,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:20:49,367 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:20:49,367 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:20:49,368 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:20:49,368 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:20:49,374 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:20:49,374 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:20:49,384 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:20:49,384 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:20:49,399 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:20:49,399 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:20:49,419 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:20:49,419 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:20:49,444 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:20:49,445 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:20:49,475 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:20:49,476 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:20:49,511 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:20:49,512 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:20:49,555 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:20:49,555 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:20:49,609 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:20:49,610 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:20:49,656 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:20:49,656 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2030442615] [2021-03-11 14:20:49,656 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:20:49,657 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:20:49,657 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1828138698] [2021-03-11 14:20:49,657 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:20:49,657 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:20:49,657 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:20:49,657 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:20:49,657 INFO L87 Difference]: Start difference. First operand 3125 states and 15584 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:49,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:20:49,881 INFO L93 Difference]: Finished difference Result 6038 states and 26872 transitions. [2021-03-11 14:20:49,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:20:49,882 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:20:49,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:20:49,895 INFO L225 Difference]: With dead ends: 6038 [2021-03-11 14:20:49,895 INFO L226 Difference]: Without dead ends: 6018 [2021-03-11 14:20:49,895 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 354.7ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:20:49,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6018 states. [2021-03-11 14:20:50,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6018 to 3132. [2021-03-11 14:20:50,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3132 states, 3131 states have (on average 4.98147556691153) internal successors, (15597), 3131 states have internal predecessors, (15597), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:50,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3132 states to 3132 states and 15597 transitions. [2021-03-11 14:20:50,035 INFO L78 Accepts]: Start accepts. Automaton has 3132 states and 15597 transitions. Word has length 31 [2021-03-11 14:20:50,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:20:50,035 INFO L480 AbstractCegarLoop]: Abstraction has 3132 states and 15597 transitions. [2021-03-11 14:20:50,035 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:50,035 INFO L276 IsEmpty]: Start isEmpty. Operand 3132 states and 15597 transitions. [2021-03-11 14:20:50,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:20:50,040 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:20:50,040 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:20:50,040 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable347 [2021-03-11 14:20:50,040 INFO L428 AbstractCegarLoop]: === Iteration 349 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:20:50,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:20:50,040 INFO L82 PathProgramCache]: Analyzing trace with hash 312499773, now seen corresponding path program 340 times [2021-03-11 14:20:50,040 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:20:50,040 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1077252740] [2021-03-11 14:20:50,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:20:50,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:20:50,052 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:20:50,052 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:20:50,053 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:20:50,053 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:20:50,059 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:20:50,059 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:20:50,069 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:20:50,070 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:20:50,084 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:20:50,085 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:20:50,105 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:20:50,105 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:20:50,131 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:20:50,132 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:20:50,163 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:20:50,163 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:20:50,200 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:20:50,201 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:20:50,245 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:20:50,246 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:20:50,300 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:20:50,300 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:20:50,348 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:20:50,348 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1077252740] [2021-03-11 14:20:50,348 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:20:50,348 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:20:50,348 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [204890859] [2021-03-11 14:20:50,348 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:20:50,348 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:20:50,349 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:20:50,349 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:20:50,349 INFO L87 Difference]: Start difference. First operand 3132 states and 15597 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:50,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:20:50,560 INFO L93 Difference]: Finished difference Result 6036 states and 26861 transitions. [2021-03-11 14:20:50,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:20:50,561 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:20:50,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:20:50,576 INFO L225 Difference]: With dead ends: 6036 [2021-03-11 14:20:50,576 INFO L226 Difference]: Without dead ends: 6011 [2021-03-11 14:20:50,576 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 354.8ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:20:50,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6011 states. [2021-03-11 14:20:50,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6011 to 3125. [2021-03-11 14:20:50,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3125 states, 3124 states have (on average 4.986555697823303) internal successors, (15578), 3124 states have internal predecessors, (15578), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:50,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3125 states to 3125 states and 15578 transitions. [2021-03-11 14:20:50,715 INFO L78 Accepts]: Start accepts. Automaton has 3125 states and 15578 transitions. Word has length 31 [2021-03-11 14:20:50,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:20:50,715 INFO L480 AbstractCegarLoop]: Abstraction has 3125 states and 15578 transitions. [2021-03-11 14:20:50,715 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:50,715 INFO L276 IsEmpty]: Start isEmpty. Operand 3125 states and 15578 transitions. [2021-03-11 14:20:50,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:20:50,720 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:20:50,720 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:20:50,720 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable348 [2021-03-11 14:20:50,720 INFO L428 AbstractCegarLoop]: === Iteration 350 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:20:50,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:20:50,720 INFO L82 PathProgramCache]: Analyzing trace with hash 733159989, now seen corresponding path program 341 times [2021-03-11 14:20:50,720 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:20:50,720 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1921950290] [2021-03-11 14:20:50,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:20:50,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:20:50,732 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:20:50,732 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:20:50,733 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:20:50,733 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:20:50,739 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:20:50,739 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:20:50,749 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:20:50,749 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:20:50,764 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:20:50,764 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:20:50,784 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:20:50,785 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:20:50,811 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:20:50,812 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:20:50,843 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:20:50,844 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:20:50,881 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:20:50,882 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:20:50,926 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:20:50,926 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:20:50,980 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:20:50,980 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:20:51,027 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:20:51,027 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1921950290] [2021-03-11 14:20:51,027 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:20:51,027 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:20:51,028 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217795094] [2021-03-11 14:20:51,028 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:20:51,028 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:20:51,028 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:20:51,028 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:20:51,028 INFO L87 Difference]: Start difference. First operand 3125 states and 15578 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:51,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:20:51,238 INFO L93 Difference]: Finished difference Result 6031 states and 26851 transitions. [2021-03-11 14:20:51,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:20:51,239 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:20:51,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:20:51,252 INFO L225 Difference]: With dead ends: 6031 [2021-03-11 14:20:51,252 INFO L226 Difference]: Without dead ends: 6014 [2021-03-11 14:20:51,253 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 355.4ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:20:51,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6014 states. [2021-03-11 14:20:51,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6014 to 3131. [2021-03-11 14:20:51,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3131 states, 3130 states have (on average 4.980511182108626) internal successors, (15589), 3130 states have internal predecessors, (15589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:51,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3131 states to 3131 states and 15589 transitions. [2021-03-11 14:20:51,398 INFO L78 Accepts]: Start accepts. Automaton has 3131 states and 15589 transitions. Word has length 31 [2021-03-11 14:20:51,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:20:51,398 INFO L480 AbstractCegarLoop]: Abstraction has 3131 states and 15589 transitions. [2021-03-11 14:20:51,398 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:51,398 INFO L276 IsEmpty]: Start isEmpty. Operand 3131 states and 15589 transitions. [2021-03-11 14:20:51,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:20:51,403 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:20:51,403 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:20:51,403 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable349 [2021-03-11 14:20:51,403 INFO L428 AbstractCegarLoop]: === Iteration 351 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:20:51,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:20:51,404 INFO L82 PathProgramCache]: Analyzing trace with hash -111811463, now seen corresponding path program 342 times [2021-03-11 14:20:51,404 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:20:51,404 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [723199015] [2021-03-11 14:20:51,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:20:51,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:20:51,415 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:20:51,416 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:20:51,416 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:20:51,417 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:20:51,423 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:20:51,423 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:20:51,434 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:20:51,435 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:20:51,451 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:20:51,452 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:20:51,474 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:20:51,474 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:20:51,502 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:20:51,502 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:20:51,537 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:20:51,537 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:20:51,578 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:20:51,578 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:20:51,623 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:20:51,624 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:20:51,675 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:20:51,676 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:20:51,723 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:20:51,723 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [723199015] [2021-03-11 14:20:51,723 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:20:51,723 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:20:51,723 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [971955843] [2021-03-11 14:20:51,723 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:20:51,723 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:20:51,723 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:20:51,723 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:20:51,724 INFO L87 Difference]: Start difference. First operand 3131 states and 15589 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:51,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:20:51,951 INFO L93 Difference]: Finished difference Result 6032 states and 26847 transitions. [2021-03-11 14:20:51,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:20:51,952 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:20:51,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:20:51,965 INFO L225 Difference]: With dead ends: 6032 [2021-03-11 14:20:51,965 INFO L226 Difference]: Without dead ends: 6002 [2021-03-11 14:20:51,965 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 365.5ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:20:52,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6002 states. [2021-03-11 14:20:52,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6002 to 3119. [2021-03-11 14:20:52,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3119 states, 3118 states have (on average 4.990699166132136) internal successors, (15561), 3118 states have internal predecessors, (15561), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:52,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3119 states to 3119 states and 15561 transitions. [2021-03-11 14:20:52,101 INFO L78 Accepts]: Start accepts. Automaton has 3119 states and 15561 transitions. Word has length 31 [2021-03-11 14:20:52,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:20:52,101 INFO L480 AbstractCegarLoop]: Abstraction has 3119 states and 15561 transitions. [2021-03-11 14:20:52,101 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:52,101 INFO L276 IsEmpty]: Start isEmpty. Operand 3119 states and 15561 transitions. [2021-03-11 14:20:52,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:20:52,106 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:20:52,106 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:20:52,106 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable350 [2021-03-11 14:20:52,106 INFO L428 AbstractCegarLoop]: === Iteration 352 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:20:52,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:20:52,106 INFO L82 PathProgramCache]: Analyzing trace with hash -123849377, now seen corresponding path program 343 times [2021-03-11 14:20:52,107 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:20:52,107 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [253047119] [2021-03-11 14:20:52,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:20:52,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:20:52,127 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:20:52,127 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:20:52,128 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:20:52,128 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:20:52,136 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:20:52,136 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:20:52,151 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:20:52,151 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:20:52,170 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:20:52,171 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:20:52,197 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:20:52,197 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:20:52,224 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:20:52,224 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:20:52,256 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:20:52,256 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:20:52,317 INFO L142 QuantifierPusher]: treesize reduction 45, result has 59.1 percent of original size [2021-03-11 14:20:52,318 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:20:52,388 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:20:52,389 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:20:52,441 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:20:52,442 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:20:52,489 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:20:52,489 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [253047119] [2021-03-11 14:20:52,489 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:20:52,489 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:20:52,489 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1834245874] [2021-03-11 14:20:52,489 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:20:52,489 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:20:52,489 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:20:52,490 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:20:52,490 INFO L87 Difference]: Start difference. First operand 3119 states and 15561 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:52,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:20:52,718 INFO L93 Difference]: Finished difference Result 6047 states and 26890 transitions. [2021-03-11 14:20:52,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:20:52,719 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:20:52,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:20:52,732 INFO L225 Difference]: With dead ends: 6047 [2021-03-11 14:20:52,732 INFO L226 Difference]: Without dead ends: 6027 [2021-03-11 14:20:52,732 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 426.6ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:20:52,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6027 states. [2021-03-11 14:20:52,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6027 to 3133. [2021-03-11 14:20:52,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3133 states, 3132 states have (on average 4.980842911877395) internal successors, (15600), 3132 states have internal predecessors, (15600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:52,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3133 states to 3133 states and 15600 transitions. [2021-03-11 14:20:52,869 INFO L78 Accepts]: Start accepts. Automaton has 3133 states and 15600 transitions. Word has length 31 [2021-03-11 14:20:52,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:20:52,869 INFO L480 AbstractCegarLoop]: Abstraction has 3133 states and 15600 transitions. [2021-03-11 14:20:52,869 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:52,869 INFO L276 IsEmpty]: Start isEmpty. Operand 3133 states and 15600 transitions. [2021-03-11 14:20:52,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:20:52,874 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:20:52,874 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:20:52,874 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable351 [2021-03-11 14:20:52,874 INFO L428 AbstractCegarLoop]: === Iteration 353 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:20:52,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:20:52,874 INFO L82 PathProgramCache]: Analyzing trace with hash -968820829, now seen corresponding path program 344 times [2021-03-11 14:20:52,874 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:20:52,874 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1183575950] [2021-03-11 14:20:52,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:20:52,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:20:52,891 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:20:52,892 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:20:52,892 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:20:52,893 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:20:52,899 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:20:52,900 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:20:52,910 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:20:52,910 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:20:52,925 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:20:52,925 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:20:52,945 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:20:52,946 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:20:52,971 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:20:52,971 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:20:53,002 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:20:53,003 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:20:53,064 INFO L142 QuantifierPusher]: treesize reduction 45, result has 59.1 percent of original size [2021-03-11 14:20:53,065 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:20:53,134 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:20:53,135 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:20:53,186 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:20:53,186 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:20:53,233 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:20:53,233 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1183575950] [2021-03-11 14:20:53,233 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:20:53,233 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:20:53,233 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1003641676] [2021-03-11 14:20:53,233 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:20:53,233 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:20:53,234 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:20:53,234 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:20:53,234 INFO L87 Difference]: Start difference. First operand 3133 states and 15600 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:53,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:20:53,492 INFO L93 Difference]: Finished difference Result 6044 states and 26878 transitions. [2021-03-11 14:20:53,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:20:53,493 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:20:53,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:20:53,506 INFO L225 Difference]: With dead ends: 6044 [2021-03-11 14:20:53,506 INFO L226 Difference]: Without dead ends: 6021 [2021-03-11 14:20:53,506 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 400.0ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:20:53,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6021 states. [2021-03-11 14:20:53,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6021 to 3127. [2021-03-11 14:20:53,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3127 states, 3126 states have (on average 4.984964811260396) internal successors, (15583), 3126 states have internal predecessors, (15583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:53,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3127 states to 3127 states and 15583 transitions. [2021-03-11 14:20:53,643 INFO L78 Accepts]: Start accepts. Automaton has 3127 states and 15583 transitions. Word has length 31 [2021-03-11 14:20:53,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:20:53,643 INFO L480 AbstractCegarLoop]: Abstraction has 3127 states and 15583 transitions. [2021-03-11 14:20:53,643 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:53,644 INFO L276 IsEmpty]: Start isEmpty. Operand 3127 states and 15583 transitions. [2021-03-11 14:20:53,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:20:53,649 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:20:53,649 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:20:53,649 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable352 [2021-03-11 14:20:53,649 INFO L428 AbstractCegarLoop]: === Iteration 354 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:20:53,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:20:53,649 INFO L82 PathProgramCache]: Analyzing trace with hash -1184627467, now seen corresponding path program 345 times [2021-03-11 14:20:53,649 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:20:53,649 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [439190169] [2021-03-11 14:20:53,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:20:53,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:20:53,661 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:20:53,661 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:20:53,662 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:20:53,662 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:20:53,668 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:20:53,669 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:20:53,679 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:20:53,679 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:20:53,694 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:20:53,695 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:20:53,715 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:20:53,716 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:20:53,741 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:20:53,741 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:20:53,773 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:20:53,773 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:20:53,834 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:20:53,834 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:20:53,880 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:20:53,880 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:20:53,932 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:20:53,932 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:20:53,980 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:20:53,980 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [439190169] [2021-03-11 14:20:53,980 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:20:53,980 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:20:53,980 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1901057752] [2021-03-11 14:20:53,980 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:20:53,980 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:20:53,980 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:20:53,980 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:20:53,981 INFO L87 Difference]: Start difference. First operand 3127 states and 15583 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:54,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:20:54,213 INFO L93 Difference]: Finished difference Result 6057 states and 26905 transitions. [2021-03-11 14:20:54,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:20:54,214 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:20:54,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:20:54,227 INFO L225 Difference]: With dead ends: 6057 [2021-03-11 14:20:54,227 INFO L226 Difference]: Without dead ends: 6037 [2021-03-11 14:20:54,227 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 386.0ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:20:54,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6037 states. [2021-03-11 14:20:54,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6037 to 3138. [2021-03-11 14:20:54,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3138 states, 3137 states have (on average 4.973860376155563) internal successors, (15603), 3137 states have internal predecessors, (15603), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:54,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3138 states to 3138 states and 15603 transitions. [2021-03-11 14:20:54,365 INFO L78 Accepts]: Start accepts. Automaton has 3138 states and 15603 transitions. Word has length 31 [2021-03-11 14:20:54,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:20:54,365 INFO L480 AbstractCegarLoop]: Abstraction has 3138 states and 15603 transitions. [2021-03-11 14:20:54,365 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:54,365 INFO L276 IsEmpty]: Start isEmpty. Operand 3138 states and 15603 transitions. [2021-03-11 14:20:54,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:20:54,370 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:20:54,370 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:20:54,370 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable353 [2021-03-11 14:20:54,370 INFO L428 AbstractCegarLoop]: === Iteration 355 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:20:54,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:20:54,370 INFO L82 PathProgramCache]: Analyzing trace with hash 152939747, now seen corresponding path program 346 times [2021-03-11 14:20:54,370 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:20:54,370 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1446311136] [2021-03-11 14:20:54,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:20:54,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:20:54,382 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:20:54,383 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:20:54,383 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:20:54,384 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:20:54,389 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:20:54,390 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:20:54,400 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:20:54,400 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:20:54,415 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:20:54,415 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:20:54,436 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:20:54,436 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:20:54,461 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:20:54,462 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:20:54,494 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:20:54,494 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:20:54,558 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:20:54,559 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:20:54,606 INFO L142 QuantifierPusher]: treesize reduction 72, result has 49.7 percent of original size [2021-03-11 14:20:54,607 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-03-11 14:20:54,660 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:20:54,661 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:20:54,708 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:20:54,708 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1446311136] [2021-03-11 14:20:54,708 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:20:54,708 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:20:54,708 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1175748787] [2021-03-11 14:20:54,709 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:20:54,709 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:20:54,709 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:20:54,709 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:20:54,709 INFO L87 Difference]: Start difference. First operand 3138 states and 15603 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:54,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:20:54,927 INFO L93 Difference]: Finished difference Result 6059 states and 26899 transitions. [2021-03-11 14:20:54,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:20:54,928 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:20:54,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:20:54,941 INFO L225 Difference]: With dead ends: 6059 [2021-03-11 14:20:54,941 INFO L226 Difference]: Without dead ends: 6026 [2021-03-11 14:20:54,942 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 351.9ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:20:55,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6026 states. [2021-03-11 14:20:55,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6026 to 3127. [2021-03-11 14:20:55,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3127 states, 3126 states have (on average 4.982405630198336) internal successors, (15575), 3126 states have internal predecessors, (15575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:55,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3127 states to 3127 states and 15575 transitions. [2021-03-11 14:20:55,079 INFO L78 Accepts]: Start accepts. Automaton has 3127 states and 15575 transitions. Word has length 31 [2021-03-11 14:20:55,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:20:55,079 INFO L480 AbstractCegarLoop]: Abstraction has 3127 states and 15575 transitions. [2021-03-11 14:20:55,079 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:55,079 INFO L276 IsEmpty]: Start isEmpty. Operand 3127 states and 15575 transitions. [2021-03-11 14:20:55,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:20:55,084 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:20:55,084 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:20:55,084 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable354 [2021-03-11 14:20:55,084 INFO L428 AbstractCegarLoop]: === Iteration 356 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:20:55,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:20:55,084 INFO L82 PathProgramCache]: Analyzing trace with hash 1841057141, now seen corresponding path program 347 times [2021-03-11 14:20:55,084 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:20:55,084 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1996606183] [2021-03-11 14:20:55,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:20:55,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:20:55,096 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:20:55,096 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:20:55,097 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:20:55,097 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:20:55,103 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:20:55,103 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:20:55,113 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:20:55,114 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:20:55,129 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:20:55,129 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:20:55,150 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:20:55,151 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:20:55,177 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:20:55,177 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:20:55,209 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:20:55,209 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:20:55,271 INFO L142 QuantifierPusher]: treesize reduction 54, result has 55.4 percent of original size [2021-03-11 14:20:55,271 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-03-11 14:20:55,346 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:20:55,347 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:20:55,399 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:20:55,400 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:20:55,447 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:20:55,447 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1996606183] [2021-03-11 14:20:55,447 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:20:55,447 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:20:55,447 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [536923131] [2021-03-11 14:20:55,448 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:20:55,448 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:20:55,448 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:20:55,448 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:20:55,448 INFO L87 Difference]: Start difference. First operand 3127 states and 15575 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:55,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:20:55,667 INFO L93 Difference]: Finished difference Result 6047 states and 26875 transitions. [2021-03-11 14:20:55,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:20:55,668 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:20:55,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:20:55,681 INFO L225 Difference]: With dead ends: 6047 [2021-03-11 14:20:55,681 INFO L226 Difference]: Without dead ends: 6030 [2021-03-11 14:20:55,681 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 413.8ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:20:55,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6030 states. [2021-03-11 14:20:55,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6030 to 3134. [2021-03-11 14:20:55,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3134 states, 3133 states have (on average 4.975422917331631) internal successors, (15588), 3133 states have internal predecessors, (15588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:55,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3134 states to 3134 states and 15588 transitions. [2021-03-11 14:20:55,829 INFO L78 Accepts]: Start accepts. Automaton has 3134 states and 15588 transitions. Word has length 31 [2021-03-11 14:20:55,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:20:55,829 INFO L480 AbstractCegarLoop]: Abstraction has 3134 states and 15588 transitions. [2021-03-11 14:20:55,829 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:55,829 INFO L276 IsEmpty]: Start isEmpty. Operand 3134 states and 15588 transitions. [2021-03-11 14:20:55,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:20:55,834 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:20:55,834 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:20:55,834 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable355 [2021-03-11 14:20:55,834 INFO L428 AbstractCegarLoop]: === Iteration 357 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:20:55,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:20:55,834 INFO L82 PathProgramCache]: Analyzing trace with hash -271371489, now seen corresponding path program 348 times [2021-03-11 14:20:55,834 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:20:55,834 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [376779919] [2021-03-11 14:20:55,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:20:55,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:20:55,846 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:20:55,847 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:20:55,847 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:20:55,847 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:20:55,853 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:20:55,854 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:20:55,864 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:20:55,864 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:20:55,879 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:20:55,880 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:20:55,900 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:20:55,901 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:20:55,927 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:20:55,927 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:20:55,960 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:20:55,961 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:20:56,023 INFO L142 QuantifierPusher]: treesize reduction 54, result has 55.4 percent of original size [2021-03-11 14:20:56,024 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-03-11 14:20:56,102 INFO L142 QuantifierPusher]: treesize reduction 72, result has 49.7 percent of original size [2021-03-11 14:20:56,102 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-03-11 14:20:56,157 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:20:56,158 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:20:56,207 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:20:56,207 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [376779919] [2021-03-11 14:20:56,207 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:20:56,207 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:20:56,207 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1089608836] [2021-03-11 14:20:56,207 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:20:56,207 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:20:56,207 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:20:56,207 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:20:56,207 INFO L87 Difference]: Start difference. First operand 3134 states and 15588 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:56,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:20:56,427 INFO L93 Difference]: Finished difference Result 6052 states and 26878 transitions. [2021-03-11 14:20:56,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:20:56,428 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:20:56,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:20:56,441 INFO L225 Difference]: With dead ends: 6052 [2021-03-11 14:20:56,442 INFO L226 Difference]: Without dead ends: 6015 [2021-03-11 14:20:56,442 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 386.9ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:20:56,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6015 states. [2021-03-11 14:20:56,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6015 to 3119. [2021-03-11 14:20:56,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3119 states, 3118 states have (on average 4.988133418858243) internal successors, (15553), 3118 states have internal predecessors, (15553), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:56,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3119 states to 3119 states and 15553 transitions. [2021-03-11 14:20:56,632 INFO L78 Accepts]: Start accepts. Automaton has 3119 states and 15553 transitions. Word has length 31 [2021-03-11 14:20:56,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:20:56,632 INFO L480 AbstractCegarLoop]: Abstraction has 3119 states and 15553 transitions. [2021-03-11 14:20:56,632 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:56,632 INFO L276 IsEmpty]: Start isEmpty. Operand 3119 states and 15553 transitions. [2021-03-11 14:20:56,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:20:56,637 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:20:56,637 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:20:56,637 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable356 [2021-03-11 14:20:56,637 INFO L428 AbstractCegarLoop]: === Iteration 358 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:20:56,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:20:56,638 INFO L82 PathProgramCache]: Analyzing trace with hash -816907041, now seen corresponding path program 349 times [2021-03-11 14:20:56,638 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:20:56,638 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [166346949] [2021-03-11 14:20:56,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:20:56,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:20:56,650 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:20:56,650 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:20:56,651 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:20:56,651 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:20:56,657 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:20:56,657 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:20:56,667 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:20:56,667 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:20:56,682 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:20:56,682 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:20:56,702 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:20:56,703 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:20:56,728 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:20:56,729 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:20:56,759 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:20:56,760 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:20:56,796 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:20:56,797 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:20:56,839 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:20:56,840 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:20:56,891 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:20:56,892 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:20:56,938 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:20:56,938 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [166346949] [2021-03-11 14:20:56,938 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:20:56,938 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:20:56,938 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [406676346] [2021-03-11 14:20:56,938 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:20:56,938 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:20:56,938 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:20:56,938 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:20:56,938 INFO L87 Difference]: Start difference. First operand 3119 states and 15553 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:57,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:20:57,192 INFO L93 Difference]: Finished difference Result 6053 states and 26899 transitions. [2021-03-11 14:20:57,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:20:57,193 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:20:57,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:20:57,206 INFO L225 Difference]: With dead ends: 6053 [2021-03-11 14:20:57,207 INFO L226 Difference]: Without dead ends: 6033 [2021-03-11 14:20:57,207 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 353.9ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:20:57,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6033 states. [2021-03-11 14:20:57,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6033 to 3135. [2021-03-11 14:20:57,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3135 states, 3134 states have (on average 4.97702616464582) internal successors, (15598), 3134 states have internal predecessors, (15598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:57,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3135 states to 3135 states and 15598 transitions. [2021-03-11 14:20:57,342 INFO L78 Accepts]: Start accepts. Automaton has 3135 states and 15598 transitions. Word has length 31 [2021-03-11 14:20:57,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:20:57,342 INFO L480 AbstractCegarLoop]: Abstraction has 3135 states and 15598 transitions. [2021-03-11 14:20:57,342 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:57,342 INFO L276 IsEmpty]: Start isEmpty. Operand 3135 states and 15598 transitions. [2021-03-11 14:20:57,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:20:57,347 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:20:57,347 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:20:57,347 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable357 [2021-03-11 14:20:57,347 INFO L428 AbstractCegarLoop]: === Iteration 359 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:20:57,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:20:57,347 INFO L82 PathProgramCache]: Analyzing trace with hash 1788117351, now seen corresponding path program 350 times [2021-03-11 14:20:57,347 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:20:57,347 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1169368131] [2021-03-11 14:20:57,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:20:57,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:20:57,359 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:20:57,360 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:20:57,360 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:20:57,360 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:20:57,366 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:20:57,366 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:20:57,376 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:20:57,376 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:20:57,391 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:20:57,391 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:20:57,410 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:20:57,411 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:20:57,435 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:20:57,436 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:20:57,466 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:20:57,466 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:20:57,503 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:20:57,503 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:20:57,546 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:20:57,547 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:20:57,597 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:20:57,597 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:20:57,643 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:20:57,643 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1169368131] [2021-03-11 14:20:57,643 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:20:57,643 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:20:57,643 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1048260353] [2021-03-11 14:20:57,644 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:20:57,644 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:20:57,644 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:20:57,644 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:20:57,644 INFO L87 Difference]: Start difference. First operand 3135 states and 15598 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:57,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:20:57,914 INFO L93 Difference]: Finished difference Result 6051 states and 26888 transitions. [2021-03-11 14:20:57,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:20:57,915 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:20:57,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:20:57,929 INFO L225 Difference]: With dead ends: 6051 [2021-03-11 14:20:57,929 INFO L226 Difference]: Without dead ends: 6026 [2021-03-11 14:20:57,929 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 344.1ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:20:58,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6026 states. [2021-03-11 14:20:58,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6026 to 3128. [2021-03-11 14:20:58,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3128 states, 3127 states have (on average 4.981771666133675) internal successors, (15578), 3127 states have internal predecessors, (15578), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:58,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3128 states to 3128 states and 15578 transitions. [2021-03-11 14:20:58,066 INFO L78 Accepts]: Start accepts. Automaton has 3128 states and 15578 transitions. Word has length 31 [2021-03-11 14:20:58,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:20:58,066 INFO L480 AbstractCegarLoop]: Abstraction has 3128 states and 15578 transitions. [2021-03-11 14:20:58,066 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:58,066 INFO L276 IsEmpty]: Start isEmpty. Operand 3128 states and 15578 transitions. [2021-03-11 14:20:58,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:20:58,070 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:20:58,071 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:20:58,071 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable358 [2021-03-11 14:20:58,071 INFO L428 AbstractCegarLoop]: === Iteration 360 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:20:58,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:20:58,071 INFO L82 PathProgramCache]: Analyzing trace with hash -1453373895, now seen corresponding path program 351 times [2021-03-11 14:20:58,071 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:20:58,071 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1924762403] [2021-03-11 14:20:58,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:20:58,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:20:58,083 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:20:58,083 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:20:58,083 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:20:58,084 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:20:58,089 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:20:58,090 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:20:58,099 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:20:58,100 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:20:58,114 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:20:58,115 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:20:58,135 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:20:58,135 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:20:58,160 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:20:58,160 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:20:58,192 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:20:58,192 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:20:58,229 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:20:58,230 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:20:58,274 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:20:58,275 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:20:58,326 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:20:58,326 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:20:58,372 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:20:58,372 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1924762403] [2021-03-11 14:20:58,372 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:20:58,373 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:20:58,373 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2077227909] [2021-03-11 14:20:58,373 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:20:58,373 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:20:58,373 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:20:58,373 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:20:58,373 INFO L87 Difference]: Start difference. First operand 3128 states and 15578 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:58,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:20:58,630 INFO L93 Difference]: Finished difference Result 6061 states and 26908 transitions. [2021-03-11 14:20:58,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:20:58,631 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:20:58,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:20:58,644 INFO L225 Difference]: With dead ends: 6061 [2021-03-11 14:20:58,644 INFO L226 Difference]: Without dead ends: 6041 [2021-03-11 14:20:58,644 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 356.4ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:20:58,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6041 states. [2021-03-11 14:20:58,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6041 to 3139. [2021-03-11 14:20:58,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3139 states, 3138 states have (on average 4.97068196303378) internal successors, (15598), 3138 states have internal predecessors, (15598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:58,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3139 states to 3139 states and 15598 transitions. [2021-03-11 14:20:58,782 INFO L78 Accepts]: Start accepts. Automaton has 3139 states and 15598 transitions. Word has length 31 [2021-03-11 14:20:58,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:20:58,782 INFO L480 AbstractCegarLoop]: Abstraction has 3139 states and 15598 transitions. [2021-03-11 14:20:58,782 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:58,782 INFO L276 IsEmpty]: Start isEmpty. Operand 3139 states and 15598 transitions. [2021-03-11 14:20:58,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:20:58,787 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:20:58,787 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:20:58,787 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable359 [2021-03-11 14:20:58,787 INFO L428 AbstractCegarLoop]: === Iteration 361 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:20:58,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:20:58,787 INFO L82 PathProgramCache]: Analyzing trace with hash -115806681, now seen corresponding path program 352 times [2021-03-11 14:20:58,788 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:20:58,788 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2004020792] [2021-03-11 14:20:58,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:20:58,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:20:58,800 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:20:58,800 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:20:58,801 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:20:58,801 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:20:58,807 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:20:58,807 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:20:58,817 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:20:58,817 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:20:58,832 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:20:58,832 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:20:58,852 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:20:58,853 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:20:58,877 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:20:58,878 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:20:58,909 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:20:58,910 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:20:58,947 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:20:58,948 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:20:58,993 INFO L142 QuantifierPusher]: treesize reduction 72, result has 49.7 percent of original size [2021-03-11 14:20:58,993 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-03-11 14:20:59,046 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:20:59,047 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:20:59,093 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:20:59,093 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2004020792] [2021-03-11 14:20:59,094 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:20:59,094 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:20:59,094 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1598200501] [2021-03-11 14:20:59,094 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:20:59,094 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:20:59,094 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:20:59,094 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:20:59,094 INFO L87 Difference]: Start difference. First operand 3139 states and 15598 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:59,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:20:59,383 INFO L93 Difference]: Finished difference Result 6063 states and 26902 transitions. [2021-03-11 14:20:59,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:20:59,384 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:20:59,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:20:59,397 INFO L225 Difference]: With dead ends: 6063 [2021-03-11 14:20:59,397 INFO L226 Difference]: Without dead ends: 6030 [2021-03-11 14:20:59,397 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 319.2ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:20:59,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6030 states. [2021-03-11 14:20:59,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6030 to 3128. [2021-03-11 14:20:59,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3128 states, 3127 states have (on average 4.978893508154781) internal successors, (15569), 3127 states have internal predecessors, (15569), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:59,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3128 states to 3128 states and 15569 transitions. [2021-03-11 14:20:59,532 INFO L78 Accepts]: Start accepts. Automaton has 3128 states and 15569 transitions. Word has length 31 [2021-03-11 14:20:59,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:20:59,532 INFO L480 AbstractCegarLoop]: Abstraction has 3128 states and 15569 transitions. [2021-03-11 14:20:59,532 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:20:59,532 INFO L276 IsEmpty]: Start isEmpty. Operand 3128 states and 15569 transitions. [2021-03-11 14:20:59,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:20:59,537 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:20:59,537 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:20:59,537 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable360 [2021-03-11 14:20:59,537 INFO L428 AbstractCegarLoop]: === Iteration 362 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:20:59,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:20:59,537 INFO L82 PathProgramCache]: Analyzing trace with hash 303028025, now seen corresponding path program 353 times [2021-03-11 14:20:59,538 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:20:59,538 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [83854784] [2021-03-11 14:20:59,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:20:59,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:20:59,549 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:20:59,550 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:20:59,550 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:20:59,551 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:20:59,556 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:20:59,557 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:20:59,567 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:20:59,567 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:20:59,582 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:20:59,582 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:20:59,602 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:20:59,603 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:20:59,627 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:20:59,628 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:20:59,659 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:20:59,660 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:20:59,697 INFO L142 QuantifierPusher]: treesize reduction 54, result has 55.4 percent of original size [2021-03-11 14:20:59,698 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-03-11 14:20:59,773 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:20:59,773 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:20:59,824 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:20:59,825 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:20:59,871 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:20:59,871 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [83854784] [2021-03-11 14:20:59,871 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:20:59,871 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:20:59,871 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [401954446] [2021-03-11 14:20:59,872 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:20:59,872 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:20:59,872 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:20:59,872 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:20:59,872 INFO L87 Difference]: Start difference. First operand 3128 states and 15569 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:00,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:21:00,198 INFO L93 Difference]: Finished difference Result 6054 states and 26884 transitions. [2021-03-11 14:21:00,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:21:00,199 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:21:00,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:21:00,212 INFO L225 Difference]: With dead ends: 6054 [2021-03-11 14:21:00,212 INFO L226 Difference]: Without dead ends: 6036 [2021-03-11 14:21:00,212 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 383.8ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:21:00,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6036 states. [2021-03-11 14:21:00,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6036 to 3136. [2021-03-11 14:21:00,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3136 states, 3135 states have (on average 4.97097288676236) internal successors, (15584), 3135 states have internal predecessors, (15584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:00,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3136 states to 3136 states and 15584 transitions. [2021-03-11 14:21:00,353 INFO L78 Accepts]: Start accepts. Automaton has 3136 states and 15584 transitions. Word has length 31 [2021-03-11 14:21:00,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:21:00,353 INFO L480 AbstractCegarLoop]: Abstraction has 3136 states and 15584 transitions. [2021-03-11 14:21:00,353 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:00,353 INFO L276 IsEmpty]: Start isEmpty. Operand 3136 states and 15584 transitions. [2021-03-11 14:21:00,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:21:00,357 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:21:00,358 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:21:00,358 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable361 [2021-03-11 14:21:00,358 INFO L428 AbstractCegarLoop]: === Iteration 363 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:21:00,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:21:00,358 INFO L82 PathProgramCache]: Analyzing trace with hash -964429153, now seen corresponding path program 354 times [2021-03-11 14:21:00,358 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:21:00,358 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [528917992] [2021-03-11 14:21:00,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:21:00,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:21:00,370 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:21:00,371 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:21:00,371 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:21:00,372 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:21:00,378 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:21:00,378 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:21:00,388 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:21:00,389 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:21:00,403 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:21:00,404 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:21:00,424 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:21:00,424 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:21:00,449 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:21:00,450 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:21:00,481 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:21:00,482 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:21:00,520 INFO L142 QuantifierPusher]: treesize reduction 54, result has 55.4 percent of original size [2021-03-11 14:21:00,520 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-03-11 14:21:00,595 INFO L142 QuantifierPusher]: treesize reduction 72, result has 49.7 percent of original size [2021-03-11 14:21:00,596 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-03-11 14:21:00,649 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:21:00,650 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:21:00,700 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:21:00,701 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [528917992] [2021-03-11 14:21:00,701 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:21:00,701 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:21:00,701 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1612630105] [2021-03-11 14:21:00,701 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:21:00,701 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:21:00,701 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:21:00,701 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:21:00,701 INFO L87 Difference]: Start difference. First operand 3136 states and 15584 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:01,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:21:01,003 INFO L93 Difference]: Finished difference Result 6058 states and 26884 transitions. [2021-03-11 14:21:01,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:21:01,004 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:21:01,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:21:01,018 INFO L225 Difference]: With dead ends: 6058 [2021-03-11 14:21:01,018 INFO L226 Difference]: Without dead ends: 6019 [2021-03-11 14:21:01,018 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 357.4ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:21:01,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6019 states. [2021-03-11 14:21:01,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6019 to 3119. [2021-03-11 14:21:01,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3119 states, 3118 states have (on average 4.985567671584349) internal successors, (15545), 3118 states have internal predecessors, (15545), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:01,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3119 states to 3119 states and 15545 transitions. [2021-03-11 14:21:01,157 INFO L78 Accepts]: Start accepts. Automaton has 3119 states and 15545 transitions. Word has length 31 [2021-03-11 14:21:01,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:21:01,157 INFO L480 AbstractCegarLoop]: Abstraction has 3119 states and 15545 transitions. [2021-03-11 14:21:01,157 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:01,157 INFO L276 IsEmpty]: Start isEmpty. Operand 3119 states and 15545 transitions. [2021-03-11 14:21:01,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:21:01,162 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:21:01,162 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:21:01,162 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable362 [2021-03-11 14:21:01,162 INFO L428 AbstractCegarLoop]: === Iteration 364 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:21:01,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:21:01,162 INFO L82 PathProgramCache]: Analyzing trace with hash 1940031139, now seen corresponding path program 355 times [2021-03-11 14:21:01,162 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:21:01,162 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1216698524] [2021-03-11 14:21:01,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:21:01,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:21:01,174 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:21:01,174 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:21:01,175 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:21:01,175 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:21:01,181 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:21:01,182 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:21:01,192 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:21:01,192 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:21:01,208 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:21:01,208 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:21:01,229 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:21:01,230 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:21:01,255 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:21:01,256 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:21:01,288 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:21:01,289 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:21:01,355 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:21:01,356 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:21:01,402 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:21:01,403 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:21:01,457 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:21:01,457 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:21:01,508 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:21:01,508 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1216698524] [2021-03-11 14:21:01,508 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:21:01,508 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:21:01,508 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [132499014] [2021-03-11 14:21:01,509 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:21:01,509 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:21:01,509 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:21:01,509 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:21:01,509 INFO L87 Difference]: Start difference. First operand 3119 states and 15545 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:01,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:21:01,771 INFO L93 Difference]: Finished difference Result 6036 states and 26851 transitions. [2021-03-11 14:21:01,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:21:01,772 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:21:01,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:21:01,786 INFO L225 Difference]: With dead ends: 6036 [2021-03-11 14:21:01,786 INFO L226 Difference]: Without dead ends: 6019 [2021-03-11 14:21:01,786 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 396.4ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:21:01,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6019 states. [2021-03-11 14:21:01,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6019 to 3132. [2021-03-11 14:21:01,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3132 states, 3131 states have (on average 4.9766847652507185) internal successors, (15582), 3131 states have internal predecessors, (15582), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:01,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3132 states to 3132 states and 15582 transitions. [2021-03-11 14:21:01,928 INFO L78 Accepts]: Start accepts. Automaton has 3132 states and 15582 transitions. Word has length 31 [2021-03-11 14:21:01,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:21:01,928 INFO L480 AbstractCegarLoop]: Abstraction has 3132 states and 15582 transitions. [2021-03-11 14:21:01,928 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:01,928 INFO L276 IsEmpty]: Start isEmpty. Operand 3132 states and 15582 transitions. [2021-03-11 14:21:01,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:21:01,933 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:21:01,933 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:21:01,933 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable363 [2021-03-11 14:21:01,933 INFO L428 AbstractCegarLoop]: === Iteration 365 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:21:01,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:21:01,933 INFO L82 PathProgramCache]: Analyzing trace with hash 1095059687, now seen corresponding path program 356 times [2021-03-11 14:21:01,933 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:21:01,933 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [428875304] [2021-03-11 14:21:01,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:21:01,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:21:01,945 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:21:01,946 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:21:01,946 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:21:01,947 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:21:01,953 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:21:01,953 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:21:01,963 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:21:01,964 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:21:01,979 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:21:01,980 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:21:02,002 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:21:02,003 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:21:02,031 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:21:02,031 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:21:02,064 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:21:02,065 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:21:02,133 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:21:02,134 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:21:02,188 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:21:02,189 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:21:02,249 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:21:02,250 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:21:02,302 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:21:02,302 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [428875304] [2021-03-11 14:21:02,302 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:21:02,302 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:21:02,302 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683041697] [2021-03-11 14:21:02,302 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:21:02,302 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:21:02,302 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:21:02,302 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:21:02,302 INFO L87 Difference]: Start difference. First operand 3132 states and 15582 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:02,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:21:02,635 INFO L93 Difference]: Finished difference Result 6037 states and 26847 transitions. [2021-03-11 14:21:02,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:21:02,636 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:21:02,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:21:02,649 INFO L225 Difference]: With dead ends: 6037 [2021-03-11 14:21:02,649 INFO L226 Difference]: Without dead ends: 6013 [2021-03-11 14:21:02,650 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 416.2ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:21:02,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6013 states. [2021-03-11 14:21:02,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6013 to 3126. [2021-03-11 14:21:02,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3126 states, 3125 states have (on average 4.9808) internal successors, (15565), 3125 states have internal predecessors, (15565), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:02,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3126 states to 3126 states and 15565 transitions. [2021-03-11 14:21:02,788 INFO L78 Accepts]: Start accepts. Automaton has 3126 states and 15565 transitions. Word has length 31 [2021-03-11 14:21:02,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:21:02,788 INFO L480 AbstractCegarLoop]: Abstraction has 3126 states and 15565 transitions. [2021-03-11 14:21:02,788 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:02,788 INFO L276 IsEmpty]: Start isEmpty. Operand 3126 states and 15565 transitions. [2021-03-11 14:21:02,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:21:02,793 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:21:02,793 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:21:02,793 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable364 [2021-03-11 14:21:02,793 INFO L428 AbstractCegarLoop]: === Iteration 366 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:21:02,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:21:02,793 INFO L82 PathProgramCache]: Analyzing trace with hash 1303564285, now seen corresponding path program 357 times [2021-03-11 14:21:02,793 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:21:02,793 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1987048403] [2021-03-11 14:21:02,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:21:02,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:21:02,805 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:21:02,806 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:21:02,806 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:21:02,807 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:21:02,813 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:21:02,813 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:21:02,823 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:21:02,824 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:21:02,839 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:21:02,840 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:21:02,860 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:21:02,861 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:21:02,887 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:21:02,887 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:21:02,920 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:21:02,921 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:21:02,986 INFO L142 QuantifierPusher]: treesize reduction 54, result has 55.4 percent of original size [2021-03-11 14:21:02,987 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-03-11 14:21:03,063 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:21:03,064 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:21:03,117 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:21:03,118 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:21:03,166 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:21:03,166 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1987048403] [2021-03-11 14:21:03,166 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:21:03,166 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:21:03,166 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [873753820] [2021-03-11 14:21:03,166 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:21:03,166 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:21:03,166 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:21:03,166 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:21:03,166 INFO L87 Difference]: Start difference. First operand 3126 states and 15565 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:03,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:21:03,377 INFO L93 Difference]: Finished difference Result 6041 states and 26854 transitions. [2021-03-11 14:21:03,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:21:03,378 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:21:03,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:21:03,391 INFO L225 Difference]: With dead ends: 6041 [2021-03-11 14:21:03,392 INFO L226 Difference]: Without dead ends: 6024 [2021-03-11 14:21:03,392 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 422.0ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:21:03,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6024 states. [2021-03-11 14:21:03,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6024 to 3133. [2021-03-11 14:21:03,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3133 states, 3132 states have (on average 4.97381864623244) internal successors, (15578), 3132 states have internal predecessors, (15578), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:03,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3133 states to 3133 states and 15578 transitions. [2021-03-11 14:21:03,528 INFO L78 Accepts]: Start accepts. Automaton has 3133 states and 15578 transitions. Word has length 31 [2021-03-11 14:21:03,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:21:03,528 INFO L480 AbstractCegarLoop]: Abstraction has 3133 states and 15578 transitions. [2021-03-11 14:21:03,528 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:03,528 INFO L276 IsEmpty]: Start isEmpty. Operand 3133 states and 15578 transitions. [2021-03-11 14:21:03,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:21:03,533 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:21:03,533 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:21:03,533 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable365 [2021-03-11 14:21:03,533 INFO L428 AbstractCegarLoop]: === Iteration 367 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:21:03,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:21:03,533 INFO L82 PathProgramCache]: Analyzing trace with hash -808864345, now seen corresponding path program 358 times [2021-03-11 14:21:03,533 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:21:03,533 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [619246042] [2021-03-11 14:21:03,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:21:03,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:21:03,545 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:21:03,545 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:21:03,546 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:21:03,546 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:21:03,552 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:21:03,553 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:21:03,563 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:21:03,564 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:21:03,579 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:21:03,579 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:21:03,601 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:21:03,602 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:21:03,628 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:21:03,628 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:21:03,661 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:21:03,661 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:21:03,737 INFO L142 QuantifierPusher]: treesize reduction 54, result has 55.4 percent of original size [2021-03-11 14:21:03,738 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-03-11 14:21:03,821 INFO L142 QuantifierPusher]: treesize reduction 72, result has 49.7 percent of original size [2021-03-11 14:21:03,822 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-03-11 14:21:03,878 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:21:03,879 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:21:03,929 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:21:03,929 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [619246042] [2021-03-11 14:21:03,929 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:21:03,929 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:21:03,929 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [945330167] [2021-03-11 14:21:03,929 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:21:03,929 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:21:03,929 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:21:03,930 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:21:03,930 INFO L87 Difference]: Start difference. First operand 3133 states and 15578 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:04,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:21:04,150 INFO L93 Difference]: Finished difference Result 6046 states and 26857 transitions. [2021-03-11 14:21:04,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:21:04,152 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:21:04,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:21:04,165 INFO L225 Difference]: With dead ends: 6046 [2021-03-11 14:21:04,166 INFO L226 Difference]: Without dead ends: 6017 [2021-03-11 14:21:04,166 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 416.2ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:21:04,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6017 states. [2021-03-11 14:21:04,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6017 to 3126. [2021-03-11 14:21:04,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3126 states, 3125 states have (on average 4.97856) internal successors, (15558), 3125 states have internal predecessors, (15558), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:04,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3126 states to 3126 states and 15558 transitions. [2021-03-11 14:21:04,302 INFO L78 Accepts]: Start accepts. Automaton has 3126 states and 15558 transitions. Word has length 31 [2021-03-11 14:21:04,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:21:04,303 INFO L480 AbstractCegarLoop]: Abstraction has 3126 states and 15558 transitions. [2021-03-11 14:21:04,303 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:04,303 INFO L276 IsEmpty]: Start isEmpty. Operand 3126 states and 15558 transitions. [2021-03-11 14:21:04,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:21:04,307 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:21:04,307 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:21:04,307 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable366 [2021-03-11 14:21:04,307 INFO L428 AbstractCegarLoop]: === Iteration 368 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:21:04,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:21:04,308 INFO L82 PathProgramCache]: Analyzing trace with hash 34281597, now seen corresponding path program 359 times [2021-03-11 14:21:04,308 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:21:04,308 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [170776742] [2021-03-11 14:21:04,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:21:04,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:21:04,319 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:21:04,320 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:21:04,320 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:21:04,321 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:21:04,327 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:21:04,327 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:21:04,337 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:21:04,338 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:21:04,353 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:21:04,353 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:21:04,374 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:21:04,374 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:21:04,400 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:21:04,401 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:21:04,433 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:21:04,433 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:21:04,498 INFO L142 QuantifierPusher]: treesize reduction 54, result has 55.4 percent of original size [2021-03-11 14:21:04,499 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-03-11 14:21:04,578 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:21:04,578 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:21:04,635 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:21:04,636 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:21:04,685 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:21:04,685 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [170776742] [2021-03-11 14:21:04,686 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:21:04,686 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:21:04,686 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [331456751] [2021-03-11 14:21:04,686 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:21:04,686 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:21:04,686 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:21:04,686 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:21:04,686 INFO L87 Difference]: Start difference. First operand 3126 states and 15558 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:04,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:21:04,894 INFO L93 Difference]: Finished difference Result 6044 states and 26854 transitions. [2021-03-11 14:21:04,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:21:04,895 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:21:04,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:21:04,908 INFO L225 Difference]: With dead ends: 6044 [2021-03-11 14:21:04,908 INFO L226 Difference]: Without dead ends: 6026 [2021-03-11 14:21:04,909 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 426.6ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:21:04,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6026 states. [2021-03-11 14:21:05,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6026 to 3134. [2021-03-11 14:21:05,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3134 states, 3133 states have (on average 4.970635173954676) internal successors, (15573), 3133 states have internal predecessors, (15573), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:05,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3134 states to 3134 states and 15573 transitions. [2021-03-11 14:21:05,044 INFO L78 Accepts]: Start accepts. Automaton has 3134 states and 15573 transitions. Word has length 31 [2021-03-11 14:21:05,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:21:05,045 INFO L480 AbstractCegarLoop]: Abstraction has 3134 states and 15573 transitions. [2021-03-11 14:21:05,045 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:05,045 INFO L276 IsEmpty]: Start isEmpty. Operand 3134 states and 15573 transitions. [2021-03-11 14:21:05,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:21:05,049 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:21:05,050 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:21:05,050 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable367 [2021-03-11 14:21:05,050 INFO L428 AbstractCegarLoop]: === Iteration 369 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:21:05,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:21:05,050 INFO L82 PathProgramCache]: Analyzing trace with hash -1233175581, now seen corresponding path program 360 times [2021-03-11 14:21:05,050 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:21:05,050 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [551686733] [2021-03-11 14:21:05,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:21:05,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:21:05,062 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:21:05,062 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:21:05,063 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:21:05,063 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:21:05,069 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:21:05,070 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:21:05,080 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:21:05,081 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:21:05,096 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:21:05,097 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:21:05,118 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:21:05,118 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:21:05,144 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:21:05,145 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:21:05,177 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:21:05,178 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:21:05,243 INFO L142 QuantifierPusher]: treesize reduction 54, result has 55.4 percent of original size [2021-03-11 14:21:05,243 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-03-11 14:21:05,320 INFO L142 QuantifierPusher]: treesize reduction 72, result has 49.7 percent of original size [2021-03-11 14:21:05,321 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-03-11 14:21:05,375 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:21:05,376 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:21:05,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:21:05,423 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [551686733] [2021-03-11 14:21:05,424 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:21:05,424 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:21:05,424 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [703137255] [2021-03-11 14:21:05,424 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:21:05,424 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:21:05,424 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:21:05,424 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:21:05,424 INFO L87 Difference]: Start difference. First operand 3134 states and 15573 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:05,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:21:05,603 INFO L93 Difference]: Finished difference Result 6048 states and 26854 transitions. [2021-03-11 14:21:05,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:21:05,604 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:21:05,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:21:05,618 INFO L225 Difference]: With dead ends: 6048 [2021-03-11 14:21:05,618 INFO L226 Difference]: Without dead ends: 5996 [2021-03-11 14:21:05,618 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 387.2ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:21:05,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5996 states. [2021-03-11 14:21:05,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5996 to 3104. [2021-03-11 14:21:05,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3104 states, 3103 states have (on average 4.998710924911376) internal successors, (15511), 3103 states have internal predecessors, (15511), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:05,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3104 states to 3104 states and 15511 transitions. [2021-03-11 14:21:05,753 INFO L78 Accepts]: Start accepts. Automaton has 3104 states and 15511 transitions. Word has length 31 [2021-03-11 14:21:05,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:21:05,753 INFO L480 AbstractCegarLoop]: Abstraction has 3104 states and 15511 transitions. [2021-03-11 14:21:05,753 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:05,753 INFO L276 IsEmpty]: Start isEmpty. Operand 3104 states and 15511 transitions. [2021-03-11 14:21:05,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:21:05,758 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:21:05,758 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:21:05,758 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable368 [2021-03-11 14:21:05,758 INFO L428 AbstractCegarLoop]: === Iteration 370 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:21:05,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:21:05,758 INFO L82 PathProgramCache]: Analyzing trace with hash -2081777535, now seen corresponding path program 361 times [2021-03-11 14:21:05,758 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:21:05,758 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [711790274] [2021-03-11 14:21:05,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:21:05,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:21:05,770 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:21:05,770 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:21:05,771 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:21:05,771 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:21:05,777 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:21:05,778 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:21:05,788 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:21:05,788 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:21:05,804 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:21:05,804 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:21:05,825 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:21:05,825 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:21:05,851 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:21:05,852 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:21:05,883 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:21:05,884 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:21:05,945 INFO L142 QuantifierPusher]: treesize reduction 45, result has 59.1 percent of original size [2021-03-11 14:21:05,945 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:21:06,015 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:21:06,016 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:21:06,069 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:21:06,070 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:21:06,118 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:21:06,119 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [711790274] [2021-03-11 14:21:06,119 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:21:06,119 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:21:06,119 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1479382666] [2021-03-11 14:21:06,119 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:21:06,119 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:21:06,119 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:21:06,119 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:21:06,119 INFO L87 Difference]: Start difference. First operand 3104 states and 15511 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:06,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:21:06,333 INFO L93 Difference]: Finished difference Result 5968 states and 26706 transitions. [2021-03-11 14:21:06,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:21:06,334 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:21:06,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:21:06,347 INFO L225 Difference]: With dead ends: 5968 [2021-03-11 14:21:06,347 INFO L226 Difference]: Without dead ends: 5952 [2021-03-11 14:21:06,347 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 410.6ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:21:06,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5952 states. [2021-03-11 14:21:06,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5952 to 3124. [2021-03-11 14:21:06,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3124 states, 3123 states have (on average 4.992635286583414) internal successors, (15592), 3123 states have internal predecessors, (15592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:06,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3124 states to 3124 states and 15592 transitions. [2021-03-11 14:21:06,482 INFO L78 Accepts]: Start accepts. Automaton has 3124 states and 15592 transitions. Word has length 31 [2021-03-11 14:21:06,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:21:06,482 INFO L480 AbstractCegarLoop]: Abstraction has 3124 states and 15592 transitions. [2021-03-11 14:21:06,482 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:06,482 INFO L276 IsEmpty]: Start isEmpty. Operand 3124 states and 15592 transitions. [2021-03-11 14:21:06,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:21:06,487 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:21:06,487 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:21:06,487 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable369 [2021-03-11 14:21:06,487 INFO L428 AbstractCegarLoop]: === Iteration 371 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:21:06,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:21:06,487 INFO L82 PathProgramCache]: Analyzing trace with hash 1368218309, now seen corresponding path program 362 times [2021-03-11 14:21:06,487 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:21:06,487 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [412968813] [2021-03-11 14:21:06,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:21:06,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:21:06,498 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:21:06,499 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:21:06,499 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:21:06,500 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:21:06,506 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:21:06,506 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:21:06,517 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:21:06,517 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:21:06,532 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:21:06,533 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:21:06,553 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:21:06,554 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:21:06,580 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:21:06,581 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:21:06,612 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:21:06,612 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:21:06,673 INFO L142 QuantifierPusher]: treesize reduction 45, result has 59.1 percent of original size [2021-03-11 14:21:06,674 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:21:06,744 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:21:06,744 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:21:06,798 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:21:06,798 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:21:06,847 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:21:06,847 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [412968813] [2021-03-11 14:21:06,847 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:21:06,847 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:21:06,847 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1415737156] [2021-03-11 14:21:06,847 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:21:06,847 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:21:06,847 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:21:06,847 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:21:06,848 INFO L87 Difference]: Start difference. First operand 3124 states and 15592 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:07,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:21:07,147 INFO L93 Difference]: Finished difference Result 5972 states and 26709 transitions. [2021-03-11 14:21:07,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:21:07,149 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:21:07,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:21:07,162 INFO L225 Difference]: With dead ends: 5972 [2021-03-11 14:21:07,162 INFO L226 Difference]: Without dead ends: 5947 [2021-03-11 14:21:07,162 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 420.1ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:21:07,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5947 states. [2021-03-11 14:21:07,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5947 to 3119. [2021-03-11 14:21:07,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3119 states, 3118 states have (on average 4.996151379089159) internal successors, (15578), 3118 states have internal predecessors, (15578), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:07,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3119 states to 3119 states and 15578 transitions. [2021-03-11 14:21:07,299 INFO L78 Accepts]: Start accepts. Automaton has 3119 states and 15578 transitions. Word has length 31 [2021-03-11 14:21:07,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:21:07,299 INFO L480 AbstractCegarLoop]: Abstraction has 3119 states and 15578 transitions. [2021-03-11 14:21:07,299 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:07,299 INFO L276 IsEmpty]: Start isEmpty. Operand 3119 states and 15578 transitions. [2021-03-11 14:21:07,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:21:07,304 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:21:07,304 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:21:07,304 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable370 [2021-03-11 14:21:07,304 INFO L428 AbstractCegarLoop]: === Iteration 372 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:21:07,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:21:07,304 INFO L82 PathProgramCache]: Analyzing trace with hash 1788878525, now seen corresponding path program 363 times [2021-03-11 14:21:07,304 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:21:07,304 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [816321958] [2021-03-11 14:21:07,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:21:07,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:21:07,316 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:21:07,316 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:21:07,317 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:21:07,317 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:21:07,323 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:21:07,324 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:21:07,334 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:21:07,335 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:21:07,350 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:21:07,351 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:21:07,372 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:21:07,372 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:21:07,398 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:21:07,399 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:21:07,430 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:21:07,430 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:21:07,495 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:21:07,495 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:21:07,541 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:21:07,542 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:21:07,595 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:21:07,596 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:21:07,649 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:21:07,649 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [816321958] [2021-03-11 14:21:07,649 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:21:07,649 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:21:07,649 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1420645953] [2021-03-11 14:21:07,650 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:21:07,650 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:21:07,650 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:21:07,650 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:21:07,650 INFO L87 Difference]: Start difference. First operand 3119 states and 15578 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:07,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:21:07,949 INFO L93 Difference]: Finished difference Result 5965 states and 26695 transitions. [2021-03-11 14:21:07,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:21:07,950 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:21:07,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:21:07,963 INFO L225 Difference]: With dead ends: 5965 [2021-03-11 14:21:07,963 INFO L226 Difference]: Without dead ends: 5949 [2021-03-11 14:21:07,963 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 396.9ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:21:08,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5949 states. [2021-03-11 14:21:08,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5949 to 3124. [2021-03-11 14:21:08,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3124 states, 3123 states have (on average 4.991034261927633) internal successors, (15587), 3123 states have internal predecessors, (15587), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:08,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3124 states to 3124 states and 15587 transitions. [2021-03-11 14:21:08,099 INFO L78 Accepts]: Start accepts. Automaton has 3124 states and 15587 transitions. Word has length 31 [2021-03-11 14:21:08,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:21:08,099 INFO L480 AbstractCegarLoop]: Abstraction has 3124 states and 15587 transitions. [2021-03-11 14:21:08,099 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:08,099 INFO L276 IsEmpty]: Start isEmpty. Operand 3124 states and 15587 transitions. [2021-03-11 14:21:08,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:21:08,104 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:21:08,104 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:21:08,104 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable371 [2021-03-11 14:21:08,104 INFO L428 AbstractCegarLoop]: === Iteration 373 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:21:08,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:21:08,104 INFO L82 PathProgramCache]: Analyzing trace with hash 98935621, now seen corresponding path program 364 times [2021-03-11 14:21:08,104 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:21:08,104 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1501623364] [2021-03-11 14:21:08,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:21:08,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:21:08,116 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:21:08,116 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:21:08,117 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:21:08,117 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:21:08,124 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:21:08,125 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:21:08,136 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:21:08,136 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:21:08,152 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:21:08,152 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:21:08,174 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:21:08,174 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:21:08,201 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:21:08,202 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:21:08,234 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:21:08,234 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:21:08,299 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:21:08,300 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:21:08,348 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:21:08,349 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:21:08,406 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:21:08,406 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:21:08,455 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:21:08,455 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1501623364] [2021-03-11 14:21:08,455 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:21:08,455 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:21:08,456 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [208832795] [2021-03-11 14:21:08,456 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:21:08,456 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:21:08,456 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:21:08,456 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:21:08,456 INFO L87 Difference]: Start difference. First operand 3124 states and 15587 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:08,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:21:08,702 INFO L93 Difference]: Finished difference Result 5966 states and 26692 transitions. [2021-03-11 14:21:08,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:21:08,703 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:21:08,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:21:08,716 INFO L225 Difference]: With dead ends: 5966 [2021-03-11 14:21:08,716 INFO L226 Difference]: Without dead ends: 5944 [2021-03-11 14:21:08,716 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 402.7ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:21:08,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5944 states. [2021-03-11 14:21:08,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5944 to 3119. [2021-03-11 14:21:08,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3119 states, 3118 states have (on average 4.994547787042976) internal successors, (15573), 3118 states have internal predecessors, (15573), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:08,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3119 states to 3119 states and 15573 transitions. [2021-03-11 14:21:08,850 INFO L78 Accepts]: Start accepts. Automaton has 3119 states and 15573 transitions. Word has length 31 [2021-03-11 14:21:08,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:21:08,850 INFO L480 AbstractCegarLoop]: Abstraction has 3119 states and 15573 transitions. [2021-03-11 14:21:08,850 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:08,850 INFO L276 IsEmpty]: Start isEmpty. Operand 3119 states and 15573 transitions. [2021-03-11 14:21:08,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:21:08,854 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:21:08,855 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:21:08,855 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable372 [2021-03-11 14:21:08,855 INFO L428 AbstractCegarLoop]: === Iteration 374 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:21:08,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:21:08,855 INFO L82 PathProgramCache]: Analyzing trace with hash 519595837, now seen corresponding path program 365 times [2021-03-11 14:21:08,855 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:21:08,855 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [772202543] [2021-03-11 14:21:08,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:21:08,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:21:08,866 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:21:08,867 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:21:08,867 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:21:08,868 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:21:08,874 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:21:08,874 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:21:08,885 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:21:08,885 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:21:08,901 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:21:08,901 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:21:08,922 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:21:08,923 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:21:08,949 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:21:08,949 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:21:08,981 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:21:08,982 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:21:09,047 INFO L142 QuantifierPusher]: treesize reduction 45, result has 59.1 percent of original size [2021-03-11 14:21:09,048 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:21:09,123 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:21:09,124 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:21:09,180 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:21:09,180 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:21:09,233 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:21:09,233 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [772202543] [2021-03-11 14:21:09,233 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:21:09,233 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:21:09,233 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1316407362] [2021-03-11 14:21:09,234 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:21:09,234 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:21:09,234 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:21:09,234 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:21:09,234 INFO L87 Difference]: Start difference. First operand 3119 states and 15573 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:09,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:21:09,461 INFO L93 Difference]: Finished difference Result 5974 states and 26709 transitions. [2021-03-11 14:21:09,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:21:09,462 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:21:09,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:21:09,475 INFO L225 Difference]: With dead ends: 5974 [2021-03-11 14:21:09,475 INFO L226 Difference]: Without dead ends: 5954 [2021-03-11 14:21:09,475 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 436.7ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:21:09,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5954 states. [2021-03-11 14:21:09,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5954 to 3125. [2021-03-11 14:21:09,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3125 states, 3124 states have (on average 4.988476312419975) internal successors, (15584), 3124 states have internal predecessors, (15584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:09,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3125 states to 3125 states and 15584 transitions. [2021-03-11 14:21:09,610 INFO L78 Accepts]: Start accepts. Automaton has 3125 states and 15584 transitions. Word has length 31 [2021-03-11 14:21:09,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:21:09,610 INFO L480 AbstractCegarLoop]: Abstraction has 3125 states and 15584 transitions. [2021-03-11 14:21:09,610 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:09,610 INFO L276 IsEmpty]: Start isEmpty. Operand 3125 states and 15584 transitions. [2021-03-11 14:21:09,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:21:09,615 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:21:09,615 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:21:09,615 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable373 [2021-03-11 14:21:09,615 INFO L428 AbstractCegarLoop]: === Iteration 375 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:21:09,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:21:09,615 INFO L82 PathProgramCache]: Analyzing trace with hash -325375615, now seen corresponding path program 366 times [2021-03-11 14:21:09,615 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:21:09,615 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [664967984] [2021-03-11 14:21:09,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:21:09,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:21:09,627 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:21:09,627 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:21:09,628 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:21:09,628 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:21:09,634 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:21:09,635 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:21:09,645 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:21:09,646 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:21:09,663 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:21:09,664 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:21:09,691 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:21:09,692 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:21:09,725 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:21:09,726 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:21:09,765 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:21:09,766 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:21:09,829 INFO L142 QuantifierPusher]: treesize reduction 45, result has 59.1 percent of original size [2021-03-11 14:21:09,830 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:21:09,908 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:21:09,909 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:21:09,969 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:21:09,970 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:21:10,024 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:21:10,024 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [664967984] [2021-03-11 14:21:10,024 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:21:10,025 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:21:10,025 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [169278106] [2021-03-11 14:21:10,025 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:21:10,025 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:21:10,025 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:21:10,025 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:21:10,025 INFO L87 Difference]: Start difference. First operand 3125 states and 15584 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:10,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:21:10,272 INFO L93 Difference]: Finished difference Result 5971 states and 26697 transitions. [2021-03-11 14:21:10,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:21:10,274 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:21:10,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:21:10,287 INFO L225 Difference]: With dead ends: 5971 [2021-03-11 14:21:10,287 INFO L226 Difference]: Without dead ends: 5943 [2021-03-11 14:21:10,287 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 466.6ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:21:10,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5943 states. [2021-03-11 14:21:10,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5943 to 3114. [2021-03-11 14:21:10,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3114 states, 3113 states have (on average 4.998072598779313) internal successors, (15559), 3113 states have internal predecessors, (15559), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:10,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3114 states to 3114 states and 15559 transitions. [2021-03-11 14:21:10,430 INFO L78 Accepts]: Start accepts. Automaton has 3114 states and 15559 transitions. Word has length 31 [2021-03-11 14:21:10,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:21:10,430 INFO L480 AbstractCegarLoop]: Abstraction has 3114 states and 15559 transitions. [2021-03-11 14:21:10,430 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:10,430 INFO L276 IsEmpty]: Start isEmpty. Operand 3114 states and 15559 transitions. [2021-03-11 14:21:10,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:21:10,436 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:21:10,436 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:21:10,436 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable374 [2021-03-11 14:21:10,436 INFO L428 AbstractCegarLoop]: === Iteration 376 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:21:10,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:21:10,436 INFO L82 PathProgramCache]: Analyzing trace with hash 1944443333, now seen corresponding path program 367 times [2021-03-11 14:21:10,436 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:21:10,436 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [56059147] [2021-03-11 14:21:10,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:21:10,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:21:10,448 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:21:10,448 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:21:10,449 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:21:10,449 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:21:10,456 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:21:10,457 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:21:10,469 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:21:10,469 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:21:10,487 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:21:10,488 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:21:10,512 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:21:10,513 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:21:10,542 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:21:10,543 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:21:10,579 INFO L142 QuantifierPusher]: treesize reduction 27, result has 64.5 percent of original size [2021-03-11 14:21:10,580 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 14:21:10,621 INFO L142 QuantifierPusher]: treesize reduction 45, result has 59.1 percent of original size [2021-03-11 14:21:10,622 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:21:10,701 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:21:10,702 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:21:10,762 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:21:10,762 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:21:10,818 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:21:10,818 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [56059147] [2021-03-11 14:21:10,818 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:21:10,818 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:21:10,818 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1349098879] [2021-03-11 14:21:10,818 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:21:10,818 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:21:10,818 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:21:10,818 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:21:10,819 INFO L87 Difference]: Start difference. First operand 3114 states and 15559 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:11,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:21:11,144 INFO L93 Difference]: Finished difference Result 5970 states and 26706 transitions. [2021-03-11 14:21:11,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:21:11,145 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:21:11,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:21:11,158 INFO L225 Difference]: With dead ends: 5970 [2021-03-11 14:21:11,158 INFO L226 Difference]: Without dead ends: 5954 [2021-03-11 14:21:11,159 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 440.7ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:21:11,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5954 states. [2021-03-11 14:21:11,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5954 to 3124. [2021-03-11 14:21:11,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3124 states, 3123 states have (on average 4.991034261927633) internal successors, (15587), 3123 states have internal predecessors, (15587), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:11,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3124 states to 3124 states and 15587 transitions. [2021-03-11 14:21:11,302 INFO L78 Accepts]: Start accepts. Automaton has 3124 states and 15587 transitions. Word has length 31 [2021-03-11 14:21:11,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:21:11,302 INFO L480 AbstractCegarLoop]: Abstraction has 3124 states and 15587 transitions. [2021-03-11 14:21:11,302 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:11,302 INFO L276 IsEmpty]: Start isEmpty. Operand 3124 states and 15587 transitions. [2021-03-11 14:21:11,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:21:11,307 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:21:11,307 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:21:11,307 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable375 [2021-03-11 14:21:11,307 INFO L428 AbstractCegarLoop]: === Iteration 377 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:21:11,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:21:11,308 INFO L82 PathProgramCache]: Analyzing trace with hash 1099471881, now seen corresponding path program 368 times [2021-03-11 14:21:11,308 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:21:11,308 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2041809731] [2021-03-11 14:21:11,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:21:11,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:21:11,319 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:21:11,320 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:21:11,321 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:21:11,321 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:21:11,328 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:21:11,328 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:21:11,340 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:21:11,341 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:21:11,359 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:21:11,359 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:21:11,384 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:21:11,385 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:21:11,415 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:21:11,416 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:21:11,450 INFO L142 QuantifierPusher]: treesize reduction 27, result has 64.5 percent of original size [2021-03-11 14:21:11,451 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 14:21:11,489 INFO L142 QuantifierPusher]: treesize reduction 45, result has 59.1 percent of original size [2021-03-11 14:21:11,490 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:21:11,562 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:21:11,562 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:21:11,632 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:21:11,633 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:21:11,685 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:21:11,685 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2041809731] [2021-03-11 14:21:11,685 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:21:11,685 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:21:11,685 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1395844881] [2021-03-11 14:21:11,685 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:21:11,685 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:21:11,685 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:21:11,685 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:21:11,685 INFO L87 Difference]: Start difference. First operand 3124 states and 15587 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:11,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:21:11,914 INFO L93 Difference]: Finished difference Result 5974 states and 26709 transitions. [2021-03-11 14:21:11,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:21:11,915 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:21:11,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:21:11,928 INFO L225 Difference]: With dead ends: 5974 [2021-03-11 14:21:11,928 INFO L226 Difference]: Without dead ends: 5949 [2021-03-11 14:21:11,928 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 420.4ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:21:12,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5949 states. [2021-03-11 14:21:12,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5949 to 3119. [2021-03-11 14:21:12,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3119 states, 3118 states have (on average 4.994547787042976) internal successors, (15573), 3118 states have internal predecessors, (15573), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:12,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3119 states to 3119 states and 15573 transitions. [2021-03-11 14:21:12,064 INFO L78 Accepts]: Start accepts. Automaton has 3119 states and 15573 transitions. Word has length 31 [2021-03-11 14:21:12,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:21:12,064 INFO L480 AbstractCegarLoop]: Abstraction has 3119 states and 15573 transitions. [2021-03-11 14:21:12,064 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:12,064 INFO L276 IsEmpty]: Start isEmpty. Operand 3119 states and 15573 transitions. [2021-03-11 14:21:12,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:21:12,068 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:21:12,069 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:21:12,069 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable376 [2021-03-11 14:21:12,069 INFO L428 AbstractCegarLoop]: === Iteration 378 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:21:12,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:21:12,069 INFO L82 PathProgramCache]: Analyzing trace with hash 1095820861, now seen corresponding path program 369 times [2021-03-11 14:21:12,069 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:21:12,069 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [200569516] [2021-03-11 14:21:12,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:21:12,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:21:12,080 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:21:12,081 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:21:12,081 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:21:12,082 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:21:12,088 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:21:12,089 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:21:12,099 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:21:12,100 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:21:12,116 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:21:12,116 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:21:12,138 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:21:12,139 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:21:12,165 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:21:12,166 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:21:12,199 INFO L142 QuantifierPusher]: treesize reduction 27, result has 64.5 percent of original size [2021-03-11 14:21:12,199 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 14:21:12,237 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:21:12,238 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:21:12,285 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:21:12,285 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:21:12,340 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:21:12,340 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:21:12,390 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:21:12,390 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [200569516] [2021-03-11 14:21:12,390 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:21:12,390 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:21:12,390 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [861497570] [2021-03-11 14:21:12,390 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:21:12,391 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:21:12,391 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:21:12,391 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:21:12,391 INFO L87 Difference]: Start difference. First operand 3119 states and 15573 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:12,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:21:12,619 INFO L93 Difference]: Finished difference Result 5968 states and 26697 transitions. [2021-03-11 14:21:12,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:21:12,620 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:21:12,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:21:12,633 INFO L225 Difference]: With dead ends: 5968 [2021-03-11 14:21:12,633 INFO L226 Difference]: Without dead ends: 5952 [2021-03-11 14:21:12,634 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 376.4ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:21:12,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5952 states. [2021-03-11 14:21:12,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5952 to 3124. [2021-03-11 14:21:12,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3124 states, 3123 states have (on average 4.989433237271854) internal successors, (15582), 3123 states have internal predecessors, (15582), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:12,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3124 states to 3124 states and 15582 transitions. [2021-03-11 14:21:12,769 INFO L78 Accepts]: Start accepts. Automaton has 3124 states and 15582 transitions. Word has length 31 [2021-03-11 14:21:12,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:21:12,769 INFO L480 AbstractCegarLoop]: Abstraction has 3124 states and 15582 transitions. [2021-03-11 14:21:12,769 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:12,769 INFO L276 IsEmpty]: Start isEmpty. Operand 3124 states and 15582 transitions. [2021-03-11 14:21:12,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:21:12,774 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:21:12,774 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:21:12,774 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable377 [2021-03-11 14:21:12,774 INFO L428 AbstractCegarLoop]: === Iteration 379 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:21:12,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:21:12,774 INFO L82 PathProgramCache]: Analyzing trace with hash -1439093495, now seen corresponding path program 370 times [2021-03-11 14:21:12,775 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:21:12,775 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [164523142] [2021-03-11 14:21:12,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:21:12,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:21:12,787 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:21:12,788 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:21:12,789 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:21:12,789 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:21:12,795 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:21:12,796 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:21:12,806 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:21:12,807 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:21:12,823 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:21:12,824 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:21:12,846 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:21:12,847 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:21:12,875 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:21:12,876 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:21:12,910 INFO L142 QuantifierPusher]: treesize reduction 27, result has 64.5 percent of original size [2021-03-11 14:21:12,910 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 14:21:12,949 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:21:12,949 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:21:12,996 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:21:12,997 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:21:13,054 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:21:13,055 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:21:13,105 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:21:13,105 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [164523142] [2021-03-11 14:21:13,105 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:21:13,105 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:21:13,105 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [484599864] [2021-03-11 14:21:13,105 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:21:13,105 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:21:13,106 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:21:13,106 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:21:13,106 INFO L87 Difference]: Start difference. First operand 3124 states and 15582 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:13,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:21:13,369 INFO L93 Difference]: Finished difference Result 5970 states and 26696 transitions. [2021-03-11 14:21:13,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:21:13,370 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:21:13,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:21:13,383 INFO L225 Difference]: With dead ends: 5970 [2021-03-11 14:21:13,383 INFO L226 Difference]: Without dead ends: 5947 [2021-03-11 14:21:13,384 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 380.9ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:21:13,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5947 states. [2021-03-11 14:21:13,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5947 to 3119. [2021-03-11 14:21:13,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3119 states, 3118 states have (on average 4.9929441949967925) internal successors, (15568), 3118 states have internal predecessors, (15568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:13,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3119 states to 3119 states and 15568 transitions. [2021-03-11 14:21:13,519 INFO L78 Accepts]: Start accepts. Automaton has 3119 states and 15568 transitions. Word has length 31 [2021-03-11 14:21:13,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:21:13,519 INFO L480 AbstractCegarLoop]: Abstraction has 3119 states and 15568 transitions. [2021-03-11 14:21:13,519 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:13,519 INFO L276 IsEmpty]: Start isEmpty. Operand 3119 states and 15568 transitions. [2021-03-11 14:21:13,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:21:13,524 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:21:13,524 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:21:13,524 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable378 [2021-03-11 14:21:13,524 INFO L428 AbstractCegarLoop]: === Iteration 380 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:21:13,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:21:13,524 INFO L82 PathProgramCache]: Analyzing trace with hash -173461827, now seen corresponding path program 371 times [2021-03-11 14:21:13,524 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:21:13,524 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1989769216] [2021-03-11 14:21:13,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:21:13,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:21:13,536 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:21:13,536 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:21:13,537 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:21:13,537 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:21:13,543 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:21:13,544 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:21:13,554 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:21:13,555 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:21:13,571 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:21:13,572 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:21:13,593 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:21:13,594 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:21:13,621 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:21:13,621 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:21:13,654 INFO L142 QuantifierPusher]: treesize reduction 27, result has 64.5 percent of original size [2021-03-11 14:21:13,654 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 14:21:13,693 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:21:13,694 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:21:13,742 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:21:13,742 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:21:13,799 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:21:13,800 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:21:13,852 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:21:13,852 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1989769216] [2021-03-11 14:21:13,852 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:21:13,852 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:21:13,852 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [638332145] [2021-03-11 14:21:13,852 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:21:13,852 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:21:13,852 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:21:13,852 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:21:13,852 INFO L87 Difference]: Start difference. First operand 3119 states and 15568 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:14,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:21:14,084 INFO L93 Difference]: Finished difference Result 5978 states and 26714 transitions. [2021-03-11 14:21:14,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:21:14,085 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:21:14,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:21:14,098 INFO L225 Difference]: With dead ends: 5978 [2021-03-11 14:21:14,098 INFO L226 Difference]: Without dead ends: 5958 [2021-03-11 14:21:14,098 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 387.5ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:21:14,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5958 states. [2021-03-11 14:21:14,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5958 to 3126. [2021-03-11 14:21:14,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3126 states, 3125 states have (on average 4.98592) internal successors, (15581), 3125 states have internal predecessors, (15581), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:14,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3126 states to 3126 states and 15581 transitions. [2021-03-11 14:21:14,237 INFO L78 Accepts]: Start accepts. Automaton has 3126 states and 15581 transitions. Word has length 31 [2021-03-11 14:21:14,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:21:14,237 INFO L480 AbstractCegarLoop]: Abstraction has 3126 states and 15581 transitions. [2021-03-11 14:21:14,237 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:14,237 INFO L276 IsEmpty]: Start isEmpty. Operand 3126 states and 15581 transitions. [2021-03-11 14:21:14,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:21:14,242 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:21:14,242 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:21:14,242 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable379 [2021-03-11 14:21:14,242 INFO L428 AbstractCegarLoop]: === Iteration 381 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:21:14,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:21:14,242 INFO L82 PathProgramCache]: Analyzing trace with hash -1863404731, now seen corresponding path program 372 times [2021-03-11 14:21:14,242 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:21:14,242 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [660608779] [2021-03-11 14:21:14,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:21:14,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:21:14,254 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:21:14,254 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:21:14,255 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:21:14,255 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:21:14,261 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:21:14,262 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:21:14,273 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:21:14,273 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:21:14,291 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:21:14,291 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:21:14,313 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:21:14,314 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:21:14,341 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:21:14,341 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:21:14,374 INFO L142 QuantifierPusher]: treesize reduction 27, result has 64.5 percent of original size [2021-03-11 14:21:14,375 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 14:21:14,414 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:21:14,415 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:21:14,463 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:21:14,463 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:21:14,520 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:21:14,520 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:21:14,572 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:21:14,572 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [660608779] [2021-03-11 14:21:14,572 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:21:14,572 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:21:14,572 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [206403899] [2021-03-11 14:21:14,572 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:21:14,572 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:21:14,572 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:21:14,572 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:21:14,572 INFO L87 Difference]: Start difference. First operand 3126 states and 15581 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:14,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:21:14,846 INFO L93 Difference]: Finished difference Result 5976 states and 26703 transitions. [2021-03-11 14:21:14,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:21:14,847 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:21:14,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:21:14,859 INFO L225 Difference]: With dead ends: 5976 [2021-03-11 14:21:14,860 INFO L226 Difference]: Without dead ends: 5946 [2021-03-11 14:21:14,860 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 382.1ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:21:14,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5946 states. [2021-03-11 14:21:14,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5946 to 3114. [2021-03-11 14:21:14,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3114 states, 3113 states have (on average 4.996466431095406) internal successors, (15554), 3113 states have internal predecessors, (15554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:14,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3114 states to 3114 states and 15554 transitions. [2021-03-11 14:21:14,995 INFO L78 Accepts]: Start accepts. Automaton has 3114 states and 15554 transitions. Word has length 31 [2021-03-11 14:21:14,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:21:14,995 INFO L480 AbstractCegarLoop]: Abstraction has 3114 states and 15554 transitions. [2021-03-11 14:21:14,995 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:14,995 INFO L276 IsEmpty]: Start isEmpty. Operand 3114 states and 15554 transitions. [2021-03-11 14:21:15,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:21:15,000 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:21:15,000 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:21:15,000 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable380 [2021-03-11 14:21:15,000 INFO L428 AbstractCegarLoop]: === Iteration 382 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:21:15,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:21:15,000 INFO L82 PathProgramCache]: Analyzing trace with hash 1251385669, now seen corresponding path program 373 times [2021-03-11 14:21:15,000 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:21:15,000 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [131384555] [2021-03-11 14:21:15,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:21:15,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:21:15,012 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:21:15,012 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:21:15,013 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:21:15,013 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:21:15,020 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:21:15,020 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:21:15,031 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:21:15,032 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:21:15,048 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:21:15,048 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:21:15,072 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:21:15,072 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:21:15,100 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:21:15,101 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:21:15,135 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:21:15,135 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:21:15,177 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:21:15,178 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:21:15,226 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:21:15,227 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:21:15,283 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:21:15,284 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:21:15,335 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:21:15,335 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [131384555] [2021-03-11 14:21:15,335 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:21:15,335 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:21:15,335 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [490066427] [2021-03-11 14:21:15,336 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:21:15,336 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:21:15,336 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:21:15,336 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:21:15,336 INFO L87 Difference]: Start difference. First operand 3114 states and 15554 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:15,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:21:15,582 INFO L93 Difference]: Finished difference Result 5963 states and 26686 transitions. [2021-03-11 14:21:15,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:21:15,583 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:21:15,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:21:15,596 INFO L225 Difference]: With dead ends: 5963 [2021-03-11 14:21:15,596 INFO L226 Difference]: Without dead ends: 5947 [2021-03-11 14:21:15,596 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 387.9ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:21:15,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5947 states. [2021-03-11 14:21:15,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5947 to 3124. [2021-03-11 14:21:15,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3124 states, 3123 states have (on average 4.989433237271854) internal successors, (15582), 3123 states have internal predecessors, (15582), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:15,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3124 states to 3124 states and 15582 transitions. [2021-03-11 14:21:15,730 INFO L78 Accepts]: Start accepts. Automaton has 3124 states and 15582 transitions. Word has length 31 [2021-03-11 14:21:15,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:21:15,730 INFO L480 AbstractCegarLoop]: Abstraction has 3124 states and 15582 transitions. [2021-03-11 14:21:15,730 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:15,730 INFO L276 IsEmpty]: Start isEmpty. Operand 3124 states and 15582 transitions. [2021-03-11 14:21:15,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:21:15,735 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:21:15,735 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:21:15,735 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable381 [2021-03-11 14:21:15,735 INFO L428 AbstractCegarLoop]: === Iteration 383 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:21:15,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:21:15,735 INFO L82 PathProgramCache]: Analyzing trace with hash -438557235, now seen corresponding path program 374 times [2021-03-11 14:21:15,735 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:21:15,735 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1470392058] [2021-03-11 14:21:15,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:21:15,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:21:15,750 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:21:15,750 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:21:15,751 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:21:15,751 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:21:15,757 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:21:15,758 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:21:15,769 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:21:15,770 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:21:15,786 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:21:15,786 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:21:15,809 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:21:15,809 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:21:15,837 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:21:15,837 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:21:15,870 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:21:15,871 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:21:15,912 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:21:15,913 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:21:15,962 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:21:15,962 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:21:16,020 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:21:16,020 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:21:16,073 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:21:16,074 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1470392058] [2021-03-11 14:21:16,074 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:21:16,074 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:21:16,074 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [408593545] [2021-03-11 14:21:16,074 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:21:16,074 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:21:16,074 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:21:16,074 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:21:16,074 INFO L87 Difference]: Start difference. First operand 3124 states and 15582 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:16,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:21:16,320 INFO L93 Difference]: Finished difference Result 5964 states and 26683 transitions. [2021-03-11 14:21:16,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:21:16,321 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:21:16,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:21:16,334 INFO L225 Difference]: With dead ends: 5964 [2021-03-11 14:21:16,334 INFO L226 Difference]: Without dead ends: 5942 [2021-03-11 14:21:16,334 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 389.6ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:21:16,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5942 states. [2021-03-11 14:21:16,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5942 to 3119. [2021-03-11 14:21:16,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3119 states, 3118 states have (on average 4.9929441949967925) internal successors, (15568), 3118 states have internal predecessors, (15568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:16,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3119 states to 3119 states and 15568 transitions. [2021-03-11 14:21:16,469 INFO L78 Accepts]: Start accepts. Automaton has 3119 states and 15568 transitions. Word has length 31 [2021-03-11 14:21:16,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:21:16,470 INFO L480 AbstractCegarLoop]: Abstraction has 3119 states and 15568 transitions. [2021-03-11 14:21:16,470 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:16,470 INFO L276 IsEmpty]: Start isEmpty. Operand 3119 states and 15568 transitions. [2021-03-11 14:21:16,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:21:16,475 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:21:16,475 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:21:16,475 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable382 [2021-03-11 14:21:16,475 INFO L428 AbstractCegarLoop]: === Iteration 384 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:21:16,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:21:16,476 INFO L82 PathProgramCache]: Analyzing trace with hash 827074433, now seen corresponding path program 375 times [2021-03-11 14:21:16,476 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:21:16,476 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [875970720] [2021-03-11 14:21:16,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:21:16,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:21:16,493 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:21:16,494 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:21:16,494 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:21:16,495 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:21:16,502 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:21:16,502 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:21:16,513 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:21:16,514 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:21:16,530 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:21:16,531 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:21:16,553 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:21:16,553 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:21:16,581 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:21:16,581 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:21:16,615 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:21:16,615 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:21:16,656 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:21:16,657 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:21:16,703 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:21:16,704 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:21:16,761 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:21:16,762 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:21:16,813 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:21:16,814 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [875970720] [2021-03-11 14:21:16,814 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:21:16,814 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:21:16,814 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1714874093] [2021-03-11 14:21:16,814 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:21:16,814 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:21:16,814 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:21:16,814 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:21:16,814 INFO L87 Difference]: Start difference. First operand 3119 states and 15568 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:17,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:21:17,085 INFO L93 Difference]: Finished difference Result 5964 states and 26683 transitions. [2021-03-11 14:21:17,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:21:17,086 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:21:17,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:21:17,099 INFO L225 Difference]: With dead ends: 5964 [2021-03-11 14:21:17,100 INFO L226 Difference]: Without dead ends: 5948 [2021-03-11 14:21:17,100 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 386.8ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:21:17,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5948 states. [2021-03-11 14:21:17,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5948 to 3124. [2021-03-11 14:21:17,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3124 states, 3123 states have (on average 4.987832212616074) internal successors, (15577), 3123 states have internal predecessors, (15577), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:17,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3124 states to 3124 states and 15577 transitions. [2021-03-11 14:21:17,242 INFO L78 Accepts]: Start accepts. Automaton has 3124 states and 15577 transitions. Word has length 31 [2021-03-11 14:21:17,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:21:17,242 INFO L480 AbstractCegarLoop]: Abstraction has 3124 states and 15577 transitions. [2021-03-11 14:21:17,242 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:17,242 INFO L276 IsEmpty]: Start isEmpty. Operand 3124 states and 15577 transitions. [2021-03-11 14:21:17,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:21:17,247 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:21:17,247 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:21:17,247 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable383 [2021-03-11 14:21:17,247 INFO L428 AbstractCegarLoop]: === Iteration 385 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:21:17,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:21:17,248 INFO L82 PathProgramCache]: Analyzing trace with hash -1707839923, now seen corresponding path program 376 times [2021-03-11 14:21:17,248 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:21:17,248 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1406800165] [2021-03-11 14:21:17,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:21:17,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:21:17,259 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:21:17,260 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:21:17,260 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:21:17,261 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:21:17,267 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:21:17,268 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:21:17,279 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:21:17,279 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:21:17,298 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:21:17,299 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:21:17,324 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:21:17,324 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:21:17,354 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:21:17,355 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:21:17,390 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:21:17,391 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:21:17,432 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:21:17,433 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:21:17,483 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:21:17,483 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:21:17,544 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:21:17,545 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:21:17,596 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:21:17,596 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1406800165] [2021-03-11 14:21:17,597 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:21:17,597 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:21:17,597 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1830099689] [2021-03-11 14:21:17,597 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:21:17,597 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:21:17,597 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:21:17,597 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:21:17,597 INFO L87 Difference]: Start difference. First operand 3124 states and 15577 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:17,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:21:17,879 INFO L93 Difference]: Finished difference Result 5966 states and 26682 transitions. [2021-03-11 14:21:17,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:21:17,880 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:21:17,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:21:17,892 INFO L225 Difference]: With dead ends: 5966 [2021-03-11 14:21:17,893 INFO L226 Difference]: Without dead ends: 5943 [2021-03-11 14:21:17,893 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 415.5ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:21:17,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5943 states. [2021-03-11 14:21:18,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5943 to 3119. [2021-03-11 14:21:18,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3119 states, 3118 states have (on average 4.9913406029506096) internal successors, (15563), 3118 states have internal predecessors, (15563), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:18,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3119 states to 3119 states and 15563 transitions. [2021-03-11 14:21:18,028 INFO L78 Accepts]: Start accepts. Automaton has 3119 states and 15563 transitions. Word has length 31 [2021-03-11 14:21:18,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:21:18,028 INFO L480 AbstractCegarLoop]: Abstraction has 3119 states and 15563 transitions. [2021-03-11 14:21:18,028 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:18,028 INFO L276 IsEmpty]: Start isEmpty. Operand 3119 states and 15563 transitions. [2021-03-11 14:21:18,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:21:18,033 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:21:18,033 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:21:18,033 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable384 [2021-03-11 14:21:18,033 INFO L428 AbstractCegarLoop]: === Iteration 386 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:21:18,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:21:18,034 INFO L82 PathProgramCache]: Analyzing trace with hash -1711490943, now seen corresponding path program 377 times [2021-03-11 14:21:18,034 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:21:18,034 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1967954397] [2021-03-11 14:21:18,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:21:18,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:21:18,046 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:21:18,047 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:21:18,047 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:21:18,048 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:21:18,054 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:21:18,054 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:21:18,066 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:21:18,066 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:21:18,082 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:21:18,083 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:21:18,105 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:21:18,106 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:21:18,133 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:21:18,134 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:21:18,167 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:21:18,168 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:21:18,209 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:21:18,210 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:21:18,260 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:21:18,261 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:21:18,325 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:21:18,326 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:21:18,382 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:21:18,382 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1967954397] [2021-03-11 14:21:18,382 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:21:18,382 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:21:18,382 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1334068950] [2021-03-11 14:21:18,383 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:21:18,383 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:21:18,383 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:21:18,383 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:21:18,383 INFO L87 Difference]: Start difference. First operand 3119 states and 15563 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:18,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:21:18,718 INFO L93 Difference]: Finished difference Result 5967 states and 26685 transitions. [2021-03-11 14:21:18,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:21:18,719 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:21:18,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:21:18,732 INFO L225 Difference]: With dead ends: 5967 [2021-03-11 14:21:18,732 INFO L226 Difference]: Without dead ends: 5950 [2021-03-11 14:21:18,732 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 400.4ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:21:18,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5950 states. [2021-03-11 14:21:18,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5950 to 3125. [2021-03-11 14:21:18,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3125 states, 3124 states have (on average 4.98527528809219) internal successors, (15574), 3124 states have internal predecessors, (15574), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:18,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3125 states to 3125 states and 15574 transitions. [2021-03-11 14:21:18,867 INFO L78 Accepts]: Start accepts. Automaton has 3125 states and 15574 transitions. Word has length 31 [2021-03-11 14:21:18,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:21:18,867 INFO L480 AbstractCegarLoop]: Abstraction has 3125 states and 15574 transitions. [2021-03-11 14:21:18,867 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:18,867 INFO L276 IsEmpty]: Start isEmpty. Operand 3125 states and 15574 transitions. [2021-03-11 14:21:18,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:21:18,871 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:21:18,872 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:21:18,872 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable385 [2021-03-11 14:21:18,872 INFO L428 AbstractCegarLoop]: === Iteration 387 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:21:18,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:21:18,872 INFO L82 PathProgramCache]: Analyzing trace with hash 1738504901, now seen corresponding path program 378 times [2021-03-11 14:21:18,872 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:21:18,872 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1826880342] [2021-03-11 14:21:18,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:21:18,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:21:18,883 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:21:18,884 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:21:18,885 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:21:18,885 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:21:18,891 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:21:18,892 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:21:18,904 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:21:18,904 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:21:18,921 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:21:18,921 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:21:18,944 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:21:18,944 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:21:18,972 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:21:18,972 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:21:19,006 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:21:19,006 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:21:19,047 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:21:19,048 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:21:19,096 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:21:19,097 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:21:19,154 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:21:19,154 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:21:19,206 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:21:19,207 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1826880342] [2021-03-11 14:21:19,207 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:21:19,207 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:21:19,207 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1944090664] [2021-03-11 14:21:19,207 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:21:19,207 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:21:19,207 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:21:19,207 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:21:19,207 INFO L87 Difference]: Start difference. First operand 3125 states and 15574 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:19,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:21:19,449 INFO L93 Difference]: Finished difference Result 5968 states and 26681 transitions. [2021-03-11 14:21:19,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:21:19,450 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:21:19,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:21:19,463 INFO L225 Difference]: With dead ends: 5968 [2021-03-11 14:21:19,463 INFO L226 Difference]: Without dead ends: 5939 [2021-03-11 14:21:19,463 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 391.9ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:21:19,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5939 states. [2021-03-11 14:21:19,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5939 to 3114. [2021-03-11 14:21:19,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3114 states, 3113 states have (on average 4.9948602634115) internal successors, (15549), 3113 states have internal predecessors, (15549), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:19,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3114 states to 3114 states and 15549 transitions. [2021-03-11 14:21:19,601 INFO L78 Accepts]: Start accepts. Automaton has 3114 states and 15549 transitions. Word has length 31 [2021-03-11 14:21:19,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:21:19,601 INFO L480 AbstractCegarLoop]: Abstraction has 3114 states and 15549 transitions. [2021-03-11 14:21:19,601 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:19,601 INFO L276 IsEmpty]: Start isEmpty. Operand 3114 states and 15549 transitions. [2021-03-11 14:21:19,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:21:19,606 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:21:19,606 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:21:19,606 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable386 [2021-03-11 14:21:19,606 INFO L428 AbstractCegarLoop]: === Iteration 388 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:21:19,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:21:19,606 INFO L82 PathProgramCache]: Analyzing trace with hash -286643447, now seen corresponding path program 379 times [2021-03-11 14:21:19,606 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:21:19,606 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [288974493] [2021-03-11 14:21:19,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:21:19,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:21:19,618 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:21:19,619 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:21:19,619 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:21:19,619 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:21:19,626 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:21:19,626 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:21:19,638 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:21:19,638 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:21:19,656 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:21:19,656 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:21:19,679 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:21:19,679 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:21:19,707 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:21:19,708 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:21:19,741 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:21:19,742 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:21:19,783 INFO L142 QuantifierPusher]: treesize reduction 45, result has 59.1 percent of original size [2021-03-11 14:21:19,783 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:21:19,865 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:21:19,865 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:21:19,925 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:21:19,926 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:21:19,979 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:21:19,979 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [288974493] [2021-03-11 14:21:19,980 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:21:19,980 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:21:19,980 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1168060760] [2021-03-11 14:21:19,980 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:21:19,980 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:21:19,980 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:21:19,980 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:21:19,980 INFO L87 Difference]: Start difference. First operand 3114 states and 15549 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:20,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:21:20,216 INFO L93 Difference]: Finished difference Result 5980 states and 26721 transitions. [2021-03-11 14:21:20,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:21:20,218 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:21:20,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:21:20,231 INFO L225 Difference]: With dead ends: 5980 [2021-03-11 14:21:20,231 INFO L226 Difference]: Without dead ends: 5960 [2021-03-11 14:21:20,232 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 436.7ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:21:20,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5960 states. [2021-03-11 14:21:20,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5960 to 3126. [2021-03-11 14:21:20,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3126 states, 3125 states have (on average 4.98656) internal successors, (15583), 3125 states have internal predecessors, (15583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:20,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3126 states to 3126 states and 15583 transitions. [2021-03-11 14:21:20,370 INFO L78 Accepts]: Start accepts. Automaton has 3126 states and 15583 transitions. Word has length 31 [2021-03-11 14:21:20,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:21:20,370 INFO L480 AbstractCegarLoop]: Abstraction has 3126 states and 15583 transitions. [2021-03-11 14:21:20,370 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:20,370 INFO L276 IsEmpty]: Start isEmpty. Operand 3126 states and 15583 transitions. [2021-03-11 14:21:20,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:21:20,375 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:21:20,375 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:21:20,375 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable387 [2021-03-11 14:21:20,375 INFO L428 AbstractCegarLoop]: === Iteration 389 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:21:20,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:21:20,376 INFO L82 PathProgramCache]: Analyzing trace with hash -1131614899, now seen corresponding path program 380 times [2021-03-11 14:21:20,376 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:21:20,376 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [729208507] [2021-03-11 14:21:20,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:21:20,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:21:20,388 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:21:20,389 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:21:20,389 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:21:20,390 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:21:20,397 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:21:20,397 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:21:20,410 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:21:20,411 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:21:20,428 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:21:20,428 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:21:20,451 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:21:20,452 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:21:20,483 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:21:20,484 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:21:20,519 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:21:20,519 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:21:20,563 INFO L142 QuantifierPusher]: treesize reduction 45, result has 59.1 percent of original size [2021-03-11 14:21:20,564 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:21:20,647 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:21:20,648 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:21:20,708 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:21:20,708 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:21:20,773 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:21:20,773 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [729208507] [2021-03-11 14:21:20,773 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:21:20,774 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:21:20,774 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969950249] [2021-03-11 14:21:20,774 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:21:20,774 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:21:20,774 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:21:20,774 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:21:20,774 INFO L87 Difference]: Start difference. First operand 3126 states and 15583 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:21,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:21:21,042 INFO L93 Difference]: Finished difference Result 5977 states and 26709 transitions. [2021-03-11 14:21:21,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:21:21,043 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:21:21,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:21:21,057 INFO L225 Difference]: With dead ends: 5977 [2021-03-11 14:21:21,057 INFO L226 Difference]: Without dead ends: 5954 [2021-03-11 14:21:21,057 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 451.8ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:21:21,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5954 states. [2021-03-11 14:21:21,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5954 to 3120. [2021-03-11 14:21:21,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3120 states, 3119 states have (on average 4.990702148124399) internal successors, (15566), 3119 states have internal predecessors, (15566), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:21,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3120 states to 3120 states and 15566 transitions. [2021-03-11 14:21:21,196 INFO L78 Accepts]: Start accepts. Automaton has 3120 states and 15566 transitions. Word has length 31 [2021-03-11 14:21:21,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:21:21,196 INFO L480 AbstractCegarLoop]: Abstraction has 3120 states and 15566 transitions. [2021-03-11 14:21:21,196 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:21,196 INFO L276 IsEmpty]: Start isEmpty. Operand 3120 states and 15566 transitions. [2021-03-11 14:21:21,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:21:21,201 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:21:21,201 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:21:21,201 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable388 [2021-03-11 14:21:21,201 INFO L428 AbstractCegarLoop]: === Iteration 390 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:21:21,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:21:21,201 INFO L82 PathProgramCache]: Analyzing trace with hash -710954683, now seen corresponding path program 381 times [2021-03-11 14:21:21,202 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:21:21,202 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2038059779] [2021-03-11 14:21:21,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:21:21,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:21:21,213 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:21:21,214 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:21:21,214 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:21:21,215 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:21:21,221 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:21:21,222 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:21:21,233 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:21:21,234 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:21:21,251 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:21:21,252 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:21:21,275 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:21:21,275 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:21:21,305 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:21:21,305 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:21:21,340 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:21:21,341 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:21:21,382 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:21:21,383 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:21:21,432 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:21:21,433 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:21:21,491 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:21:21,492 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:21:21,545 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:21:21,545 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2038059779] [2021-03-11 14:21:21,545 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:21:21,545 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:21:21,545 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [14088546] [2021-03-11 14:21:21,545 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:21:21,545 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:21:21,545 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:21:21,546 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:21:21,546 INFO L87 Difference]: Start difference. First operand 3120 states and 15566 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:21,808 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 41 [2021-03-11 14:21:21,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:21:21,828 INFO L93 Difference]: Finished difference Result 5982 states and 26720 transitions. [2021-03-11 14:21:21,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:21:21,829 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:21:21,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:21:21,842 INFO L225 Difference]: With dead ends: 5982 [2021-03-11 14:21:21,842 INFO L226 Difference]: Without dead ends: 5962 [2021-03-11 14:21:21,842 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 429.5ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:21:21,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5962 states. [2021-03-11 14:21:21,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5962 to 3127. [2021-03-11 14:21:21,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3127 states, 3126 states have (on average 4.983685220729367) internal successors, (15579), 3126 states have internal predecessors, (15579), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:21,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3127 states to 3127 states and 15579 transitions. [2021-03-11 14:21:21,978 INFO L78 Accepts]: Start accepts. Automaton has 3127 states and 15579 transitions. Word has length 31 [2021-03-11 14:21:21,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:21:21,978 INFO L480 AbstractCegarLoop]: Abstraction has 3127 states and 15579 transitions. [2021-03-11 14:21:21,978 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:21,978 INFO L276 IsEmpty]: Start isEmpty. Operand 3127 states and 15579 transitions. [2021-03-11 14:21:21,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:21:21,983 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:21:21,983 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:21:21,983 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable389 [2021-03-11 14:21:21,983 INFO L428 AbstractCegarLoop]: === Iteration 391 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:21:21,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:21:21,983 INFO L82 PathProgramCache]: Analyzing trace with hash 1894069709, now seen corresponding path program 382 times [2021-03-11 14:21:21,983 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:21:21,983 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [44578253] [2021-03-11 14:21:21,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:21:21,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:21:21,995 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:21:21,995 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:21:21,996 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:21:21,996 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:21:22,003 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:21:22,004 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:21:22,015 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:21:22,016 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:21:22,033 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:21:22,033 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:21:22,056 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:21:22,057 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:21:22,086 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:21:22,086 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:21:22,121 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:21:22,121 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:21:22,163 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:21:22,164 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:21:22,215 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:21:22,215 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:21:22,274 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:21:22,275 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:21:22,327 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:21:22,327 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [44578253] [2021-03-11 14:21:22,328 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:21:22,328 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:21:22,328 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812466663] [2021-03-11 14:21:22,328 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:21:22,328 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:21:22,328 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:21:22,328 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:21:22,328 INFO L87 Difference]: Start difference. First operand 3127 states and 15579 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:22,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:21:22,603 INFO L93 Difference]: Finished difference Result 5980 states and 26709 transitions. [2021-03-11 14:21:22,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:21:22,604 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:21:22,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:21:22,617 INFO L225 Difference]: With dead ends: 5980 [2021-03-11 14:21:22,617 INFO L226 Difference]: Without dead ends: 5955 [2021-03-11 14:21:22,618 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 404.3ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:21:22,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5955 states. [2021-03-11 14:21:22,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5955 to 3120. [2021-03-11 14:21:22,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3120 states, 3119 states have (on average 4.988778454632895) internal successors, (15560), 3119 states have internal predecessors, (15560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:22,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3120 states to 3120 states and 15560 transitions. [2021-03-11 14:21:22,783 INFO L78 Accepts]: Start accepts. Automaton has 3120 states and 15560 transitions. Word has length 31 [2021-03-11 14:21:22,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:21:22,783 INFO L480 AbstractCegarLoop]: Abstraction has 3120 states and 15560 transitions. [2021-03-11 14:21:22,783 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:22,783 INFO L276 IsEmpty]: Start isEmpty. Operand 3120 states and 15560 transitions. [2021-03-11 14:21:22,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:21:22,788 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:21:22,788 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:21:22,788 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable390 [2021-03-11 14:21:22,788 INFO L428 AbstractCegarLoop]: === Iteration 392 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:21:22,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:21:22,789 INFO L82 PathProgramCache]: Analyzing trace with hash -1980237371, now seen corresponding path program 383 times [2021-03-11 14:21:22,789 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:21:22,789 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2013437164] [2021-03-11 14:21:22,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:21:22,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:21:22,801 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:21:22,801 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:21:22,802 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:21:22,803 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:21:22,810 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:21:22,811 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:21:22,822 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:21:22,822 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:21:22,840 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:21:22,841 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:21:22,863 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:21:22,864 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:21:22,892 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:21:22,893 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:21:22,926 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:21:22,926 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:21:22,966 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:21:22,967 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:21:23,020 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:21:23,022 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:21:23,090 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:21:23,090 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:21:23,140 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:21:23,141 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2013437164] [2021-03-11 14:21:23,141 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:21:23,141 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:21:23,141 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1514175652] [2021-03-11 14:21:23,141 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:21:23,141 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:21:23,141 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:21:23,141 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:21:23,141 INFO L87 Difference]: Start difference. First operand 3120 states and 15560 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:23,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:21:23,375 INFO L93 Difference]: Finished difference Result 5975 states and 26699 transitions. [2021-03-11 14:21:23,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:21:23,376 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:21:23,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:21:23,389 INFO L225 Difference]: With dead ends: 5975 [2021-03-11 14:21:23,389 INFO L226 Difference]: Without dead ends: 5958 [2021-03-11 14:21:23,389 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 397.0ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:21:23,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5958 states. [2021-03-11 14:21:23,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5958 to 3126. [2021-03-11 14:21:23,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3126 states, 3125 states have (on average 4.98272) internal successors, (15571), 3125 states have internal predecessors, (15571), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:23,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3126 states to 3126 states and 15571 transitions. [2021-03-11 14:21:23,523 INFO L78 Accepts]: Start accepts. Automaton has 3126 states and 15571 transitions. Word has length 31 [2021-03-11 14:21:23,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:21:23,524 INFO L480 AbstractCegarLoop]: Abstraction has 3126 states and 15571 transitions. [2021-03-11 14:21:23,524 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:23,524 INFO L276 IsEmpty]: Start isEmpty. Operand 3126 states and 15571 transitions. [2021-03-11 14:21:23,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:21:23,528 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:21:23,528 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:21:23,528 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable391 [2021-03-11 14:21:23,528 INFO L428 AbstractCegarLoop]: === Iteration 393 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:21:23,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:21:23,529 INFO L82 PathProgramCache]: Analyzing trace with hash 1469758473, now seen corresponding path program 384 times [2021-03-11 14:21:23,529 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:21:23,529 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [314411789] [2021-03-11 14:21:23,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:21:23,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:21:23,540 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:21:23,541 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:21:23,541 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:21:23,542 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:21:23,549 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:21:23,550 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:21:23,561 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:21:23,562 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:21:23,579 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:21:23,579 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:21:23,603 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:21:23,603 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:21:23,631 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:21:23,631 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:21:23,666 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:21:23,666 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:21:23,708 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:21:23,709 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:21:23,759 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:21:23,760 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:21:23,816 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:21:23,817 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:21:23,867 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:21:23,867 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [314411789] [2021-03-11 14:21:23,867 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:21:23,867 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:21:23,867 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [355878023] [2021-03-11 14:21:23,867 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:21:23,867 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:21:23,868 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:21:23,868 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:21:23,868 INFO L87 Difference]: Start difference. First operand 3126 states and 15571 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:24,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:21:24,130 INFO L93 Difference]: Finished difference Result 5976 states and 26695 transitions. [2021-03-11 14:21:24,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:21:24,132 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:21:24,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:21:24,144 INFO L225 Difference]: With dead ends: 5976 [2021-03-11 14:21:24,144 INFO L226 Difference]: Without dead ends: 5941 [2021-03-11 14:21:24,145 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 389.7ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:21:24,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5941 states. [2021-03-11 14:21:24,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5941 to 3109. [2021-03-11 14:21:24,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3109 states, 3108 states have (on average 4.998391248391249) internal successors, (15535), 3108 states have internal predecessors, (15535), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:24,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3109 states to 3109 states and 15535 transitions. [2021-03-11 14:21:24,281 INFO L78 Accepts]: Start accepts. Automaton has 3109 states and 15535 transitions. Word has length 31 [2021-03-11 14:21:24,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:21:24,281 INFO L480 AbstractCegarLoop]: Abstraction has 3109 states and 15535 transitions. [2021-03-11 14:21:24,281 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:24,281 INFO L276 IsEmpty]: Start isEmpty. Operand 3109 states and 15535 transitions. [2021-03-11 14:21:24,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:21:24,286 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:21:24,286 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:21:24,286 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable392 [2021-03-11 14:21:24,286 INFO L428 AbstractCegarLoop]: === Iteration 394 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:21:24,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:21:24,286 INFO L82 PathProgramCache]: Analyzing trace with hash -1564186887, now seen corresponding path program 385 times [2021-03-11 14:21:24,286 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:21:24,286 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [201905915] [2021-03-11 14:21:24,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:21:24,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:21:24,298 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:21:24,298 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:21:24,299 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:21:24,299 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:21:24,306 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:21:24,306 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:21:24,317 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:21:24,318 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:21:24,334 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:21:24,335 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:21:24,359 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:21:24,360 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:21:24,396 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:21:24,397 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:21:24,430 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:21:24,431 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:21:24,497 INFO L142 QuantifierPusher]: treesize reduction 45, result has 59.1 percent of original size [2021-03-11 14:21:24,498 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:21:24,573 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:21:24,573 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:21:24,630 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:21:24,631 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:21:24,683 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:21:24,683 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [201905915] [2021-03-11 14:21:24,683 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:21:24,683 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:21:24,683 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [259370785] [2021-03-11 14:21:24,683 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:21:24,683 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:21:24,683 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:21:24,683 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:21:24,683 INFO L87 Difference]: Start difference. First operand 3109 states and 15535 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:24,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:21:24,953 INFO L93 Difference]: Finished difference Result 5970 states and 26706 transitions. [2021-03-11 14:21:24,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:21:24,955 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:21:24,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:21:24,968 INFO L225 Difference]: With dead ends: 5970 [2021-03-11 14:21:24,968 INFO L226 Difference]: Without dead ends: 5954 [2021-03-11 14:21:24,968 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 450.3ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:21:25,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5954 states. [2021-03-11 14:21:25,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5954 to 3124. [2021-03-11 14:21:25,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3124 states, 3123 states have (on average 4.991034261927633) internal successors, (15587), 3123 states have internal predecessors, (15587), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:25,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3124 states to 3124 states and 15587 transitions. [2021-03-11 14:21:25,104 INFO L78 Accepts]: Start accepts. Automaton has 3124 states and 15587 transitions. Word has length 31 [2021-03-11 14:21:25,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:21:25,104 INFO L480 AbstractCegarLoop]: Abstraction has 3124 states and 15587 transitions. [2021-03-11 14:21:25,104 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:25,104 INFO L276 IsEmpty]: Start isEmpty. Operand 3124 states and 15587 transitions. [2021-03-11 14:21:25,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:21:25,109 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:21:25,109 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:21:25,109 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable393 [2021-03-11 14:21:25,109 INFO L428 AbstractCegarLoop]: === Iteration 395 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:21:25,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:21:25,109 INFO L82 PathProgramCache]: Analyzing trace with hash 1885808957, now seen corresponding path program 386 times [2021-03-11 14:21:25,110 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:21:25,110 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2037347095] [2021-03-11 14:21:25,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:21:25,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:21:25,121 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:21:25,122 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:21:25,122 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:21:25,123 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:21:25,129 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:21:25,129 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:21:25,140 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:21:25,141 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:21:25,157 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:21:25,158 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:21:25,180 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:21:25,180 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:21:25,207 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:21:25,208 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:21:25,241 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:21:25,241 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:21:25,306 INFO L142 QuantifierPusher]: treesize reduction 45, result has 59.1 percent of original size [2021-03-11 14:21:25,307 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:21:25,381 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:21:25,381 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:21:25,438 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:21:25,439 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:21:25,490 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:21:25,490 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2037347095] [2021-03-11 14:21:25,490 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:21:25,490 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:21:25,490 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [915381378] [2021-03-11 14:21:25,490 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:21:25,490 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:21:25,490 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:21:25,490 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:21:25,490 INFO L87 Difference]: Start difference. First operand 3124 states and 15587 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:25,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:21:25,815 INFO L93 Difference]: Finished difference Result 5974 states and 26709 transitions. [2021-03-11 14:21:25,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:21:25,816 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:21:25,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:21:25,829 INFO L225 Difference]: With dead ends: 5974 [2021-03-11 14:21:25,829 INFO L226 Difference]: Without dead ends: 5949 [2021-03-11 14:21:25,829 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 441.3ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:21:25,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5949 states. [2021-03-11 14:21:25,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5949 to 3119. [2021-03-11 14:21:25,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3119 states, 3118 states have (on average 4.994547787042976) internal successors, (15573), 3118 states have internal predecessors, (15573), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:25,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3119 states to 3119 states and 15573 transitions. [2021-03-11 14:21:25,965 INFO L78 Accepts]: Start accepts. Automaton has 3119 states and 15573 transitions. Word has length 31 [2021-03-11 14:21:25,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:21:25,966 INFO L480 AbstractCegarLoop]: Abstraction has 3119 states and 15573 transitions. [2021-03-11 14:21:25,966 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:25,966 INFO L276 IsEmpty]: Start isEmpty. Operand 3119 states and 15573 transitions. [2021-03-11 14:21:25,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:21:25,971 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:21:25,971 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:21:25,971 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable394 [2021-03-11 14:21:25,971 INFO L428 AbstractCegarLoop]: === Iteration 396 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:21:25,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:21:25,971 INFO L82 PathProgramCache]: Analyzing trace with hash -1988498123, now seen corresponding path program 387 times [2021-03-11 14:21:25,971 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:21:25,971 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [816760029] [2021-03-11 14:21:25,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:21:25,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:21:25,984 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:21:25,985 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:21:25,986 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:21:25,986 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:21:25,995 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:21:25,996 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:21:26,011 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:21:26,012 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:21:26,032 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:21:26,033 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:21:26,057 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:21:26,058 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:21:26,086 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:21:26,086 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:21:26,120 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:21:26,120 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:21:26,186 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:21:26,187 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:21:26,235 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:21:26,235 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:21:26,292 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:21:26,292 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:21:26,343 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:21:26,343 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [816760029] [2021-03-11 14:21:26,344 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:21:26,344 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:21:26,344 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [619848806] [2021-03-11 14:21:26,344 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:21:26,344 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:21:26,344 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:21:26,344 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:21:26,344 INFO L87 Difference]: Start difference. First operand 3119 states and 15573 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:26,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:21:26,620 INFO L93 Difference]: Finished difference Result 5967 states and 26695 transitions. [2021-03-11 14:21:26,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:21:26,621 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:21:26,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:21:26,634 INFO L225 Difference]: With dead ends: 5967 [2021-03-11 14:21:26,634 INFO L226 Difference]: Without dead ends: 5951 [2021-03-11 14:21:26,634 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 422.7ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:21:26,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5951 states. [2021-03-11 14:21:26,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5951 to 3124. [2021-03-11 14:21:26,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3124 states, 3123 states have (on average 4.989433237271854) internal successors, (15582), 3123 states have internal predecessors, (15582), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:26,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3124 states to 3124 states and 15582 transitions. [2021-03-11 14:21:26,771 INFO L78 Accepts]: Start accepts. Automaton has 3124 states and 15582 transitions. Word has length 31 [2021-03-11 14:21:26,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:21:26,771 INFO L480 AbstractCegarLoop]: Abstraction has 3124 states and 15582 transitions. [2021-03-11 14:21:26,771 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:26,771 INFO L276 IsEmpty]: Start isEmpty. Operand 3124 states and 15582 transitions. [2021-03-11 14:21:26,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:21:26,776 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:21:26,776 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:21:26,776 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable395 [2021-03-11 14:21:26,776 INFO L428 AbstractCegarLoop]: === Iteration 397 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:21:26,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:21:26,776 INFO L82 PathProgramCache]: Analyzing trace with hash 616526269, now seen corresponding path program 388 times [2021-03-11 14:21:26,776 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:21:26,776 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [102639308] [2021-03-11 14:21:26,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:21:26,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:21:26,788 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:21:26,788 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:21:26,789 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:21:26,789 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:21:26,796 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:21:26,796 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:21:26,807 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:21:26,808 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:21:26,824 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:21:26,825 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:21:26,847 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:21:26,847 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:21:26,875 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:21:26,875 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:21:26,908 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:21:26,909 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:21:26,974 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:21:26,975 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:21:27,023 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:21:27,024 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:21:27,080 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:21:27,081 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:21:27,132 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:21:27,132 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [102639308] [2021-03-11 14:21:27,132 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:21:27,132 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:21:27,132 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1484075814] [2021-03-11 14:21:27,132 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:21:27,132 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:21:27,132 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:21:27,132 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:21:27,132 INFO L87 Difference]: Start difference. First operand 3124 states and 15582 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:27,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:21:27,386 INFO L93 Difference]: Finished difference Result 5968 states and 26692 transitions. [2021-03-11 14:21:27,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:21:27,387 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:21:27,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:21:27,400 INFO L225 Difference]: With dead ends: 5968 [2021-03-11 14:21:27,401 INFO L226 Difference]: Without dead ends: 5946 [2021-03-11 14:21:27,401 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 409.9ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:21:27,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5946 states. [2021-03-11 14:21:27,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5946 to 3119. [2021-03-11 14:21:27,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3119 states, 3118 states have (on average 4.9929441949967925) internal successors, (15568), 3118 states have internal predecessors, (15568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:27,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3119 states to 3119 states and 15568 transitions. [2021-03-11 14:21:27,536 INFO L78 Accepts]: Start accepts. Automaton has 3119 states and 15568 transitions. Word has length 31 [2021-03-11 14:21:27,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:21:27,536 INFO L480 AbstractCegarLoop]: Abstraction has 3119 states and 15568 transitions. [2021-03-11 14:21:27,536 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:27,536 INFO L276 IsEmpty]: Start isEmpty. Operand 3119 states and 15568 transitions. [2021-03-11 14:21:27,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:21:27,541 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:21:27,541 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:21:27,541 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable396 [2021-03-11 14:21:27,541 INFO L428 AbstractCegarLoop]: === Iteration 398 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:21:27,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:21:27,541 INFO L82 PathProgramCache]: Analyzing trace with hash 1037186485, now seen corresponding path program 389 times [2021-03-11 14:21:27,541 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:21:27,541 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [176491820] [2021-03-11 14:21:27,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:21:27,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:21:27,553 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:21:27,553 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:21:27,554 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:21:27,554 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:21:27,561 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:21:27,561 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:21:27,573 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:21:27,573 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:21:27,590 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:21:27,590 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:21:27,612 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:21:27,613 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:21:27,641 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:21:27,641 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:21:27,676 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:21:27,676 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:21:27,742 INFO L142 QuantifierPusher]: treesize reduction 45, result has 59.1 percent of original size [2021-03-11 14:21:27,743 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:21:27,822 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:21:27,822 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:21:27,882 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:21:27,883 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:21:27,938 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:21:27,938 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [176491820] [2021-03-11 14:21:27,938 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:21:27,938 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:21:27,938 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1886875847] [2021-03-11 14:21:27,938 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:21:27,938 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:21:27,938 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:21:27,938 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:21:27,938 INFO L87 Difference]: Start difference. First operand 3119 states and 15568 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:28,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:21:28,229 INFO L93 Difference]: Finished difference Result 5976 states and 26709 transitions. [2021-03-11 14:21:28,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:21:28,231 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:21:28,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:21:28,244 INFO L225 Difference]: With dead ends: 5976 [2021-03-11 14:21:28,244 INFO L226 Difference]: Without dead ends: 5956 [2021-03-11 14:21:28,244 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 464.1ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:21:28,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5956 states. [2021-03-11 14:21:28,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5956 to 3125. [2021-03-11 14:21:28,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3125 states, 3124 states have (on average 4.986875800256082) internal successors, (15579), 3124 states have internal predecessors, (15579), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:28,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3125 states to 3125 states and 15579 transitions. [2021-03-11 14:21:28,380 INFO L78 Accepts]: Start accepts. Automaton has 3125 states and 15579 transitions. Word has length 31 [2021-03-11 14:21:28,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:21:28,380 INFO L480 AbstractCegarLoop]: Abstraction has 3125 states and 15579 transitions. [2021-03-11 14:21:28,380 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:28,380 INFO L276 IsEmpty]: Start isEmpty. Operand 3125 states and 15579 transitions. [2021-03-11 14:21:28,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:21:28,385 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:21:28,385 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:21:28,385 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable397 [2021-03-11 14:21:28,385 INFO L428 AbstractCegarLoop]: === Iteration 399 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:21:28,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:21:28,385 INFO L82 PathProgramCache]: Analyzing trace with hash 192215033, now seen corresponding path program 390 times [2021-03-11 14:21:28,385 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:21:28,385 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [934453290] [2021-03-11 14:21:28,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:21:28,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:21:28,397 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:21:28,397 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:21:28,398 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:21:28,398 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:21:28,405 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:21:28,405 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:21:28,417 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:21:28,417 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:21:28,434 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:21:28,434 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:21:28,457 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:21:28,457 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:21:28,485 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:21:28,486 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:21:28,519 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:21:28,520 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:21:28,586 INFO L142 QuantifierPusher]: treesize reduction 45, result has 59.1 percent of original size [2021-03-11 14:21:28,587 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:21:28,666 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:21:28,667 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:21:28,725 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:21:28,726 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:21:28,779 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:21:28,779 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [934453290] [2021-03-11 14:21:28,779 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:21:28,779 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:21:28,779 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [416050058] [2021-03-11 14:21:28,779 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:21:28,779 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:21:28,780 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:21:28,780 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:21:28,780 INFO L87 Difference]: Start difference. First operand 3125 states and 15579 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:29,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:21:29,047 INFO L93 Difference]: Finished difference Result 5973 states and 26697 transitions. [2021-03-11 14:21:29,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:21:29,048 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:21:29,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:21:29,061 INFO L225 Difference]: With dead ends: 5973 [2021-03-11 14:21:29,061 INFO L226 Difference]: Without dead ends: 5945 [2021-03-11 14:21:29,062 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 447.9ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:21:29,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5945 states. [2021-03-11 14:21:29,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5945 to 3114. [2021-03-11 14:21:29,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3114 states, 3113 states have (on average 4.996466431095406) internal successors, (15554), 3113 states have internal predecessors, (15554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:29,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3114 states to 3114 states and 15554 transitions. [2021-03-11 14:21:29,196 INFO L78 Accepts]: Start accepts. Automaton has 3114 states and 15554 transitions. Word has length 31 [2021-03-11 14:21:29,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:21:29,196 INFO L480 AbstractCegarLoop]: Abstraction has 3114 states and 15554 transitions. [2021-03-11 14:21:29,196 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:29,197 INFO L276 IsEmpty]: Start isEmpty. Operand 3114 states and 15554 transitions. [2021-03-11 14:21:29,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:21:29,201 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:21:29,201 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:21:29,201 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable398 [2021-03-11 14:21:29,201 INFO L428 AbstractCegarLoop]: === Iteration 400 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:21:29,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:21:29,202 INFO L82 PathProgramCache]: Analyzing trace with hash 1924541125, now seen corresponding path program 391 times [2021-03-11 14:21:29,202 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:21:29,202 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1762889140] [2021-03-11 14:21:29,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:21:29,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:21:29,214 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:21:29,214 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:21:29,215 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:21:29,215 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:21:29,222 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:21:29,222 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:21:29,234 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:21:29,234 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:21:29,251 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:21:29,251 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:21:29,274 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:21:29,274 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:21:29,302 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:21:29,303 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:21:29,336 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:21:29,337 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:21:29,405 INFO L142 QuantifierPusher]: treesize reduction 45, result has 59.1 percent of original size [2021-03-11 14:21:29,406 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:21:29,483 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:21:29,484 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:21:29,541 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:21:29,542 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:21:29,594 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:21:29,594 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1762889140] [2021-03-11 14:21:29,594 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:21:29,594 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:21:29,594 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [453023599] [2021-03-11 14:21:29,594 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:21:29,595 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:21:29,595 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:21:29,595 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:21:29,595 INFO L87 Difference]: Start difference. First operand 3114 states and 15554 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:29,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:21:29,872 INFO L93 Difference]: Finished difference Result 5974 states and 26711 transitions. [2021-03-11 14:21:29,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:21:29,873 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:21:29,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:21:29,886 INFO L225 Difference]: With dead ends: 5974 [2021-03-11 14:21:29,886 INFO L226 Difference]: Without dead ends: 5958 [2021-03-11 14:21:29,886 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 447.4ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:21:29,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5958 states. [2021-03-11 14:21:30,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5958 to 3124. [2021-03-11 14:21:30,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3124 states, 3123 states have (on average 4.989433237271854) internal successors, (15582), 3123 states have internal predecessors, (15582), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:30,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3124 states to 3124 states and 15582 transitions. [2021-03-11 14:21:30,023 INFO L78 Accepts]: Start accepts. Automaton has 3124 states and 15582 transitions. Word has length 31 [2021-03-11 14:21:30,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:21:30,023 INFO L480 AbstractCegarLoop]: Abstraction has 3124 states and 15582 transitions. [2021-03-11 14:21:30,023 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:30,023 INFO L276 IsEmpty]: Start isEmpty. Operand 3124 states and 15582 transitions. [2021-03-11 14:21:30,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:21:30,028 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:21:30,028 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:21:30,028 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable399 [2021-03-11 14:21:30,028 INFO L428 AbstractCegarLoop]: === Iteration 401 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:21:30,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:21:30,028 INFO L82 PathProgramCache]: Analyzing trace with hash 1079569673, now seen corresponding path program 392 times [2021-03-11 14:21:30,028 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:21:30,028 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1433241734] [2021-03-11 14:21:30,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:21:30,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:21:30,040 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:21:30,040 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:21:30,041 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:21:30,041 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:21:30,048 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:21:30,048 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:21:30,060 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:21:30,060 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:21:30,078 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:21:30,079 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:21:30,102 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:21:30,103 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:21:30,132 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:21:30,132 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:21:30,167 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:21:30,167 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:21:30,239 INFO L142 QuantifierPusher]: treesize reduction 45, result has 59.1 percent of original size [2021-03-11 14:21:30,239 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:21:30,315 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:21:30,316 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:21:30,375 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:21:30,376 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:21:30,428 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:21:30,428 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1433241734] [2021-03-11 14:21:30,428 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:21:30,428 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:21:30,428 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1572157274] [2021-03-11 14:21:30,428 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:21:30,428 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:21:30,428 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:21:30,429 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:21:30,429 INFO L87 Difference]: Start difference. First operand 3124 states and 15582 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:30,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:21:30,682 INFO L93 Difference]: Finished difference Result 5978 states and 26714 transitions. [2021-03-11 14:21:30,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:21:30,683 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:21:30,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:21:30,697 INFO L225 Difference]: With dead ends: 5978 [2021-03-11 14:21:30,697 INFO L226 Difference]: Without dead ends: 5953 [2021-03-11 14:21:30,697 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 463.8ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:21:30,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5953 states. [2021-03-11 14:21:30,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5953 to 3119. [2021-03-11 14:21:30,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3119 states, 3118 states have (on average 4.9929441949967925) internal successors, (15568), 3118 states have internal predecessors, (15568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:30,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3119 states to 3119 states and 15568 transitions. [2021-03-11 14:21:30,832 INFO L78 Accepts]: Start accepts. Automaton has 3119 states and 15568 transitions. Word has length 31 [2021-03-11 14:21:30,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:21:30,832 INFO L480 AbstractCegarLoop]: Abstraction has 3119 states and 15568 transitions. [2021-03-11 14:21:30,832 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:30,832 INFO L276 IsEmpty]: Start isEmpty. Operand 3119 states and 15568 transitions. [2021-03-11 14:21:30,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:21:30,837 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:21:30,837 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:21:30,837 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable400 [2021-03-11 14:21:30,837 INFO L428 AbstractCegarLoop]: === Iteration 402 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:21:30,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:21:30,837 INFO L82 PathProgramCache]: Analyzing trace with hash 227296181, now seen corresponding path program 393 times [2021-03-11 14:21:30,838 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:21:30,838 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [57378536] [2021-03-11 14:21:30,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:21:30,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:21:30,850 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:21:30,850 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:21:30,851 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:21:30,851 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:21:30,858 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:21:30,858 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:21:30,870 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:21:30,870 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:21:30,887 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:21:30,888 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:21:30,911 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:21:30,911 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:21:30,941 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:21:30,941 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:21:30,977 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:21:30,978 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:21:31,050 INFO L142 QuantifierPusher]: treesize reduction 45, result has 59.1 percent of original size [2021-03-11 14:21:31,051 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:21:31,133 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:21:31,134 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:21:31,192 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:21:31,193 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:21:31,246 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:21:31,247 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [57378536] [2021-03-11 14:21:31,247 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:21:31,247 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:21:31,247 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [250267016] [2021-03-11 14:21:31,247 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:21:31,247 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:21:31,247 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:21:31,247 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:21:31,247 INFO L87 Difference]: Start difference. First operand 3119 states and 15568 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:31,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:21:31,540 INFO L93 Difference]: Finished difference Result 5973 states and 26704 transitions. [2021-03-11 14:21:31,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:21:31,542 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:21:31,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:21:31,555 INFO L225 Difference]: With dead ends: 5973 [2021-03-11 14:21:31,555 INFO L226 Difference]: Without dead ends: 5957 [2021-03-11 14:21:31,555 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 463.7ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:21:31,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5957 states. [2021-03-11 14:21:31,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5957 to 3124. [2021-03-11 14:21:31,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3124 states, 3123 states have (on average 4.987832212616074) internal successors, (15577), 3123 states have internal predecessors, (15577), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:31,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3124 states to 3124 states and 15577 transitions. [2021-03-11 14:21:31,690 INFO L78 Accepts]: Start accepts. Automaton has 3124 states and 15577 transitions. Word has length 31 [2021-03-11 14:21:31,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:21:31,690 INFO L480 AbstractCegarLoop]: Abstraction has 3124 states and 15577 transitions. [2021-03-11 14:21:31,690 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:31,690 INFO L276 IsEmpty]: Start isEmpty. Operand 3124 states and 15577 transitions. [2021-03-11 14:21:31,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:21:31,695 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:21:31,695 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:21:31,695 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable401 [2021-03-11 14:21:31,695 INFO L428 AbstractCegarLoop]: === Iteration 403 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:21:31,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:21:31,695 INFO L82 PathProgramCache]: Analyzing trace with hash 297406217, now seen corresponding path program 394 times [2021-03-11 14:21:31,695 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:21:31,695 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1655159766] [2021-03-11 14:21:31,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:21:31,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:21:31,707 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:21:31,708 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:21:31,708 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:21:31,709 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:21:31,715 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:21:31,716 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:21:31,730 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:21:31,731 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:21:31,749 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:21:31,749 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:21:31,775 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:21:31,776 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:21:31,806 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:21:31,807 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:21:31,845 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:21:31,845 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:21:31,921 INFO L142 QuantifierPusher]: treesize reduction 45, result has 59.1 percent of original size [2021-03-11 14:21:31,921 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:21:32,010 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:21:32,011 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:21:32,075 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:21:32,076 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:21:32,135 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:21:32,135 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1655159766] [2021-03-11 14:21:32,135 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:21:32,135 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:21:32,135 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1292526214] [2021-03-11 14:21:32,135 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:21:32,135 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:21:32,135 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:21:32,135 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:21:32,136 INFO L87 Difference]: Start difference. First operand 3124 states and 15577 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:32,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:21:32,447 INFO L93 Difference]: Finished difference Result 5976 states and 26705 transitions. [2021-03-11 14:21:32,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:21:32,449 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:21:32,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:21:32,462 INFO L225 Difference]: With dead ends: 5976 [2021-03-11 14:21:32,463 INFO L226 Difference]: Without dead ends: 5952 [2021-03-11 14:21:32,463 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 507.3ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:21:32,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5952 states. [2021-03-11 14:21:32,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5952 to 3119. [2021-03-11 14:21:32,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3119 states, 3118 states have (on average 4.9913406029506096) internal successors, (15563), 3118 states have internal predecessors, (15563), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:32,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3119 states to 3119 states and 15563 transitions. [2021-03-11 14:21:32,606 INFO L78 Accepts]: Start accepts. Automaton has 3119 states and 15563 transitions. Word has length 31 [2021-03-11 14:21:32,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:21:32,606 INFO L480 AbstractCegarLoop]: Abstraction has 3119 states and 15563 transitions. [2021-03-11 14:21:32,606 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:32,606 INFO L276 IsEmpty]: Start isEmpty. Operand 3119 states and 15563 transitions. [2021-03-11 14:21:32,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:21:32,611 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:21:32,611 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:21:32,611 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable402 [2021-03-11 14:21:32,611 INFO L428 AbstractCegarLoop]: === Iteration 404 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:21:32,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:21:32,612 INFO L82 PathProgramCache]: Analyzing trace with hash -1041986507, now seen corresponding path program 395 times [2021-03-11 14:21:32,612 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:21:32,612 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [368202717] [2021-03-11 14:21:32,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:21:32,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:21:32,623 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:21:32,624 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:21:32,625 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:21:32,625 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:21:32,633 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:21:32,633 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:21:32,646 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:21:32,647 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:21:32,665 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:21:32,666 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:21:32,692 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:21:32,693 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:21:32,725 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:21:32,725 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:21:32,763 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:21:32,764 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:21:32,841 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:21:32,842 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:21:32,898 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:21:32,899 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:21:32,963 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:21:32,964 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:21:33,021 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:21:33,021 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [368202717] [2021-03-11 14:21:33,021 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:21:33,021 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:21:33,021 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932598430] [2021-03-11 14:21:33,021 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:21:33,021 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:21:33,021 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:21:33,021 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:21:33,022 INFO L87 Difference]: Start difference. First operand 3119 states and 15563 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:33,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:21:33,421 INFO L93 Difference]: Finished difference Result 5984 states and 26724 transitions. [2021-03-11 14:21:33,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:21:33,422 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:21:33,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:21:33,435 INFO L225 Difference]: With dead ends: 5984 [2021-03-11 14:21:33,435 INFO L226 Difference]: Without dead ends: 5964 [2021-03-11 14:21:33,435 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 471.0ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:21:33,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5964 states. [2021-03-11 14:21:33,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5964 to 3127. [2021-03-11 14:21:33,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3127 states, 3126 states have (on average 4.983365323096609) internal successors, (15578), 3126 states have internal predecessors, (15578), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:33,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3127 states to 3127 states and 15578 transitions. [2021-03-11 14:21:33,571 INFO L78 Accepts]: Start accepts. Automaton has 3127 states and 15578 transitions. Word has length 31 [2021-03-11 14:21:33,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:21:33,571 INFO L480 AbstractCegarLoop]: Abstraction has 3127 states and 15578 transitions. [2021-03-11 14:21:33,571 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:33,571 INFO L276 IsEmpty]: Start isEmpty. Operand 3127 states and 15578 transitions. [2021-03-11 14:21:33,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:21:33,576 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:21:33,576 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:21:33,576 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable403 [2021-03-11 14:21:33,576 INFO L428 AbstractCegarLoop]: === Iteration 405 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:21:33,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:21:33,576 INFO L82 PathProgramCache]: Analyzing trace with hash -126905019, now seen corresponding path program 396 times [2021-03-11 14:21:33,576 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:21:33,576 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1198295436] [2021-03-11 14:21:33,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:21:33,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:21:33,588 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:21:33,589 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:21:33,589 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:21:33,590 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:21:33,596 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:21:33,597 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:21:33,608 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:21:33,609 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:21:33,627 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:21:33,627 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:21:33,650 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:21:33,651 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:21:33,680 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:21:33,681 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:21:33,715 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:21:33,716 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:21:33,786 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:21:33,787 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:21:33,838 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:21:33,839 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:21:33,898 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:21:33,898 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:21:33,952 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:21:33,952 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1198295436] [2021-03-11 14:21:33,952 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:21:33,952 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:21:33,952 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1580713304] [2021-03-11 14:21:33,952 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:21:33,952 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:21:33,953 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:21:33,953 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:21:33,953 INFO L87 Difference]: Start difference. First operand 3127 states and 15578 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:34,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:21:34,234 INFO L93 Difference]: Finished difference Result 5983 states and 26714 transitions. [2021-03-11 14:21:34,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:21:34,235 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:21:34,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:21:34,248 INFO L225 Difference]: With dead ends: 5983 [2021-03-11 14:21:34,248 INFO L226 Difference]: Without dead ends: 5951 [2021-03-11 14:21:34,248 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 436.6ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:21:34,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5951 states. [2021-03-11 14:21:34,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5951 to 3114. [2021-03-11 14:21:34,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3114 states, 3113 states have (on average 4.9948602634115) internal successors, (15549), 3113 states have internal predecessors, (15549), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:34,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3114 states to 3114 states and 15549 transitions. [2021-03-11 14:21:34,382 INFO L78 Accepts]: Start accepts. Automaton has 3114 states and 15549 transitions. Word has length 31 [2021-03-11 14:21:34,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:21:34,382 INFO L480 AbstractCegarLoop]: Abstraction has 3114 states and 15549 transitions. [2021-03-11 14:21:34,382 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:34,382 INFO L276 IsEmpty]: Start isEmpty. Operand 3114 states and 15549 transitions. [2021-03-11 14:21:34,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:21:34,387 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:21:34,387 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:21:34,387 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable404 [2021-03-11 14:21:34,387 INFO L428 AbstractCegarLoop]: === Iteration 406 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:21:34,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:21:34,387 INFO L82 PathProgramCache]: Analyzing trace with hash 1231483461, now seen corresponding path program 397 times [2021-03-11 14:21:34,387 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:21:34,387 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [733127031] [2021-03-11 14:21:34,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:21:34,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:21:34,399 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:21:34,399 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:21:34,400 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:21:34,400 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:21:34,407 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:21:34,407 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:21:34,419 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:21:34,420 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:21:34,437 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:21:34,437 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:21:34,460 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:21:34,461 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:21:34,489 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:21:34,490 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:21:34,525 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:21:34,526 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:21:34,567 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:21:34,567 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:21:34,621 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:21:34,622 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:21:34,681 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:21:34,681 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:21:34,735 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:21:34,735 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [733127031] [2021-03-11 14:21:34,736 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:21:34,736 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:21:34,736 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [310457561] [2021-03-11 14:21:34,736 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:21:34,736 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:21:34,736 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:21:34,736 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:21:34,736 INFO L87 Difference]: Start difference. First operand 3114 states and 15549 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:35,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:21:35,021 INFO L93 Difference]: Finished difference Result 5966 states and 26688 transitions. [2021-03-11 14:21:35,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:21:35,022 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:21:35,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:21:35,035 INFO L225 Difference]: With dead ends: 5966 [2021-03-11 14:21:35,035 INFO L226 Difference]: Without dead ends: 5950 [2021-03-11 14:21:35,035 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 404.9ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:21:35,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5950 states. [2021-03-11 14:21:35,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5950 to 3124. [2021-03-11 14:21:35,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3124 states, 3123 states have (on average 4.987832212616074) internal successors, (15577), 3123 states have internal predecessors, (15577), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:35,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3124 states to 3124 states and 15577 transitions. [2021-03-11 14:21:35,170 INFO L78 Accepts]: Start accepts. Automaton has 3124 states and 15577 transitions. Word has length 31 [2021-03-11 14:21:35,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:21:35,170 INFO L480 AbstractCegarLoop]: Abstraction has 3124 states and 15577 transitions. [2021-03-11 14:21:35,170 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:35,170 INFO L276 IsEmpty]: Start isEmpty. Operand 3124 states and 15577 transitions. [2021-03-11 14:21:35,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:21:35,175 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:21:35,175 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:21:35,175 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable405 [2021-03-11 14:21:35,175 INFO L428 AbstractCegarLoop]: === Iteration 407 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:21:35,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:21:35,175 INFO L82 PathProgramCache]: Analyzing trace with hash -458459443, now seen corresponding path program 398 times [2021-03-11 14:21:35,175 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:21:35,175 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1275652867] [2021-03-11 14:21:35,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:21:35,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:21:35,187 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:21:35,187 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:21:35,188 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:21:35,188 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:21:35,195 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:21:35,196 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:21:35,207 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:21:35,208 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:21:35,225 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:21:35,226 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:21:35,249 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:21:35,250 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:21:35,279 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:21:35,279 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:21:35,314 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:21:35,314 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:21:35,356 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:21:35,356 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:21:35,406 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:21:35,407 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:21:35,465 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:21:35,466 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:21:35,519 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:21:35,519 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1275652867] [2021-03-11 14:21:35,519 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:21:35,519 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:21:35,519 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1563551935] [2021-03-11 14:21:35,520 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:21:35,520 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:21:35,520 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:21:35,520 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:21:35,520 INFO L87 Difference]: Start difference. First operand 3124 states and 15577 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:35,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:21:35,888 INFO L93 Difference]: Finished difference Result 5967 states and 26685 transitions. [2021-03-11 14:21:35,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:21:35,890 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:21:35,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:21:35,902 INFO L225 Difference]: With dead ends: 5967 [2021-03-11 14:21:35,903 INFO L226 Difference]: Without dead ends: 5945 [2021-03-11 14:21:35,903 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 400.3ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:21:35,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5945 states. [2021-03-11 14:21:36,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5945 to 3119. [2021-03-11 14:21:36,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3119 states, 3118 states have (on average 4.9913406029506096) internal successors, (15563), 3118 states have internal predecessors, (15563), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:36,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3119 states to 3119 states and 15563 transitions. [2021-03-11 14:21:36,038 INFO L78 Accepts]: Start accepts. Automaton has 3119 states and 15563 transitions. Word has length 31 [2021-03-11 14:21:36,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:21:36,038 INFO L480 AbstractCegarLoop]: Abstraction has 3119 states and 15563 transitions. [2021-03-11 14:21:36,038 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:36,038 INFO L276 IsEmpty]: Start isEmpty. Operand 3119 states and 15563 transitions. [2021-03-11 14:21:36,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:21:36,043 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:21:36,043 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:21:36,043 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable406 [2021-03-11 14:21:36,043 INFO L428 AbstractCegarLoop]: === Iteration 408 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:21:36,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:21:36,043 INFO L82 PathProgramCache]: Analyzing trace with hash -41450247, now seen corresponding path program 399 times [2021-03-11 14:21:36,043 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:21:36,043 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [116272413] [2021-03-11 14:21:36,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:21:36,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:21:36,055 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:21:36,055 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:21:36,056 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:21:36,056 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:21:36,063 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:21:36,064 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:21:36,075 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:21:36,076 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:21:36,093 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:21:36,094 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:21:36,117 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:21:36,118 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:21:36,146 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:21:36,147 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:21:36,182 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:21:36,182 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:21:36,224 INFO L142 QuantifierPusher]: treesize reduction 45, result has 59.1 percent of original size [2021-03-11 14:21:36,224 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:21:36,306 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:21:36,307 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:21:36,366 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:21:36,367 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:21:36,420 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:21:36,420 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [116272413] [2021-03-11 14:21:36,420 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:21:36,420 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:21:36,420 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2103398327] [2021-03-11 14:21:36,420 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:21:36,420 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:21:36,420 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:21:36,421 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:21:36,421 INFO L87 Difference]: Start difference. First operand 3119 states and 15563 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:36,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:21:36,692 INFO L93 Difference]: Finished difference Result 5968 states and 26687 transitions. [2021-03-11 14:21:36,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:21:36,693 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:21:36,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:21:36,706 INFO L225 Difference]: With dead ends: 5968 [2021-03-11 14:21:36,706 INFO L226 Difference]: Without dead ends: 5952 [2021-03-11 14:21:36,706 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 433.6ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:21:36,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5952 states. [2021-03-11 14:21:36,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5952 to 3124. [2021-03-11 14:21:36,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3124 states, 3123 states have (on average 4.9862311879602945) internal successors, (15572), 3123 states have internal predecessors, (15572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:36,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3124 states to 3124 states and 15572 transitions. [2021-03-11 14:21:36,841 INFO L78 Accepts]: Start accepts. Automaton has 3124 states and 15572 transitions. Word has length 31 [2021-03-11 14:21:36,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:21:36,842 INFO L480 AbstractCegarLoop]: Abstraction has 3124 states and 15572 transitions. [2021-03-11 14:21:36,842 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:36,842 INFO L276 IsEmpty]: Start isEmpty. Operand 3124 states and 15572 transitions. [2021-03-11 14:21:36,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:21:36,846 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:21:36,846 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:21:36,846 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable407 [2021-03-11 14:21:36,847 INFO L428 AbstractCegarLoop]: === Iteration 409 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:21:36,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:21:36,847 INFO L82 PathProgramCache]: Analyzing trace with hash 28659789, now seen corresponding path program 400 times [2021-03-11 14:21:36,847 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:21:36,847 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [457511494] [2021-03-11 14:21:36,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:21:36,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:21:36,863 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:21:36,864 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:21:36,865 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:21:36,865 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:21:36,873 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:21:36,874 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:21:36,886 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:21:36,886 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:21:36,904 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:21:36,904 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:21:36,928 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:21:36,929 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:21:36,958 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:21:36,958 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:21:36,993 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:21:36,994 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:21:37,035 INFO L142 QuantifierPusher]: treesize reduction 45, result has 59.1 percent of original size [2021-03-11 14:21:37,036 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:21:37,118 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:21:37,119 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:21:37,178 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:21:37,179 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:21:37,233 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:21:37,233 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [457511494] [2021-03-11 14:21:37,233 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:21:37,233 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:21:37,233 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [973596545] [2021-03-11 14:21:37,233 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:21:37,233 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:21:37,233 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:21:37,233 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:21:37,234 INFO L87 Difference]: Start difference. First operand 3124 states and 15572 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:37,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:21:37,474 INFO L93 Difference]: Finished difference Result 5971 states and 26688 transitions. [2021-03-11 14:21:37,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:21:37,475 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:21:37,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:21:37,488 INFO L225 Difference]: With dead ends: 5971 [2021-03-11 14:21:37,488 INFO L226 Difference]: Without dead ends: 5947 [2021-03-11 14:21:37,488 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 442.5ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:21:37,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5947 states. [2021-03-11 14:21:37,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5947 to 3119. [2021-03-11 14:21:37,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3119 states, 3118 states have (on average 4.989737010904426) internal successors, (15558), 3118 states have internal predecessors, (15558), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:37,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3119 states to 3119 states and 15558 transitions. [2021-03-11 14:21:37,624 INFO L78 Accepts]: Start accepts. Automaton has 3119 states and 15558 transitions. Word has length 31 [2021-03-11 14:21:37,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:21:37,624 INFO L480 AbstractCegarLoop]: Abstraction has 3119 states and 15558 transitions. [2021-03-11 14:21:37,624 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:37,624 INFO L276 IsEmpty]: Start isEmpty. Operand 3119 states and 15558 transitions. [2021-03-11 14:21:37,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:21:37,629 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:21:37,629 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:21:37,629 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable408 [2021-03-11 14:21:37,629 INFO L428 AbstractCegarLoop]: === Iteration 410 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:21:37,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:21:37,629 INFO L82 PathProgramCache]: Analyzing trace with hash 1714951673, now seen corresponding path program 401 times [2021-03-11 14:21:37,629 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:21:37,629 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [116803838] [2021-03-11 14:21:37,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:21:37,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:21:37,641 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:21:37,641 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:21:37,642 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:21:37,643 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:21:37,650 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:21:37,650 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:21:37,663 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:21:37,664 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:21:37,683 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:21:37,683 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:21:37,707 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:21:37,708 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:21:37,737 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:21:37,737 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:21:37,772 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:21:37,773 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:21:37,815 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:21:37,815 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:21:37,866 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:21:37,867 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:21:37,927 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:21:37,927 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:21:37,981 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:21:37,981 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [116803838] [2021-03-11 14:21:37,981 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:21:37,981 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:21:37,981 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [764035785] [2021-03-11 14:21:37,981 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:21:37,981 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:21:37,981 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:21:37,981 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:21:37,981 INFO L87 Difference]: Start difference. First operand 3119 states and 15558 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:38,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:21:38,215 INFO L93 Difference]: Finished difference Result 5971 states and 26689 transitions. [2021-03-11 14:21:38,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:21:38,216 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:21:38,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:21:38,229 INFO L225 Difference]: With dead ends: 5971 [2021-03-11 14:21:38,229 INFO L226 Difference]: Without dead ends: 5954 [2021-03-11 14:21:38,229 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 408.0ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:21:38,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5954 states. [2021-03-11 14:21:38,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5954 to 3125. [2021-03-11 14:21:38,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3125 states, 3124 states have (on average 4.983674775928297) internal successors, (15569), 3124 states have internal predecessors, (15569), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:38,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3125 states to 3125 states and 15569 transitions. [2021-03-11 14:21:38,363 INFO L78 Accepts]: Start accepts. Automaton has 3125 states and 15569 transitions. Word has length 31 [2021-03-11 14:21:38,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:21:38,363 INFO L480 AbstractCegarLoop]: Abstraction has 3125 states and 15569 transitions. [2021-03-11 14:21:38,363 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:38,364 INFO L276 IsEmpty]: Start isEmpty. Operand 3125 states and 15569 transitions. [2021-03-11 14:21:38,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:21:38,368 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:21:38,368 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:21:38,368 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable409 [2021-03-11 14:21:38,368 INFO L428 AbstractCegarLoop]: === Iteration 411 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:21:38,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:21:38,368 INFO L82 PathProgramCache]: Analyzing trace with hash -819962683, now seen corresponding path program 402 times [2021-03-11 14:21:38,369 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:21:38,369 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1596008743] [2021-03-11 14:21:38,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:21:38,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:21:38,380 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:21:38,380 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:21:38,381 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:21:38,381 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:21:38,388 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:21:38,389 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:21:38,400 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:21:38,401 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:21:38,418 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:21:38,419 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:21:38,443 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:21:38,443 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:21:38,472 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:21:38,473 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:21:38,508 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:21:38,508 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:21:38,550 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:21:38,551 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:21:38,600 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:21:38,601 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:21:38,661 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:21:38,662 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:21:38,716 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:21:38,716 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1596008743] [2021-03-11 14:21:38,716 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:21:38,716 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:21:38,716 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [638282398] [2021-03-11 14:21:38,716 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:21:38,716 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:21:38,716 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:21:38,717 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:21:38,717 INFO L87 Difference]: Start difference. First operand 3125 states and 15569 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:38,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:21:38,971 INFO L93 Difference]: Finished difference Result 5973 states and 26687 transitions. [2021-03-11 14:21:38,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:21:38,972 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:21:38,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:21:38,985 INFO L225 Difference]: With dead ends: 5973 [2021-03-11 14:21:38,985 INFO L226 Difference]: Without dead ends: 5943 [2021-03-11 14:21:38,985 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 410.1ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:21:39,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5943 states. [2021-03-11 14:21:39,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5943 to 3114. [2021-03-11 14:21:39,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3114 states, 3113 states have (on average 4.993254095727594) internal successors, (15544), 3113 states have internal predecessors, (15544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:39,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3114 states to 3114 states and 15544 transitions. [2021-03-11 14:21:39,120 INFO L78 Accepts]: Start accepts. Automaton has 3114 states and 15544 transitions. Word has length 31 [2021-03-11 14:21:39,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:21:39,120 INFO L480 AbstractCegarLoop]: Abstraction has 3114 states and 15544 transitions. [2021-03-11 14:21:39,120 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:39,120 INFO L276 IsEmpty]: Start isEmpty. Operand 3114 states and 15544 transitions. [2021-03-11 14:21:39,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:21:39,125 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:21:39,125 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:21:39,125 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable410 [2021-03-11 14:21:39,125 INFO L428 AbstractCegarLoop]: === Iteration 412 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:21:39,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:21:39,125 INFO L82 PathProgramCache]: Analyzing trace with hash -306545655, now seen corresponding path program 403 times [2021-03-11 14:21:39,125 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:21:39,125 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1057625259] [2021-03-11 14:21:39,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:21:39,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:21:39,137 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:21:39,137 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:21:39,138 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:21:39,138 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:21:39,145 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:21:39,146 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:21:39,158 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:21:39,159 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:21:39,177 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:21:39,178 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:21:39,204 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:21:39,205 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:21:39,236 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:21:39,236 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:21:39,273 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:21:39,273 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:21:39,317 INFO L142 QuantifierPusher]: treesize reduction 45, result has 59.1 percent of original size [2021-03-11 14:21:39,317 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:21:39,399 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:21:39,400 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:21:39,460 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:21:39,461 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:21:39,515 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:21:39,515 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1057625259] [2021-03-11 14:21:39,516 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:21:39,516 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:21:39,516 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1753989961] [2021-03-11 14:21:39,516 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:21:39,516 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:21:39,516 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:21:39,516 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:21:39,516 INFO L87 Difference]: Start difference. First operand 3114 states and 15544 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:39,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:21:39,751 INFO L93 Difference]: Finished difference Result 5984 states and 26726 transitions. [2021-03-11 14:21:39,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:21:39,752 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:21:39,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:21:39,766 INFO L225 Difference]: With dead ends: 5984 [2021-03-11 14:21:39,766 INFO L226 Difference]: Without dead ends: 5964 [2021-03-11 14:21:39,766 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 453.7ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:21:39,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5964 states. [2021-03-11 14:21:39,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5964 to 3126. [2021-03-11 14:21:39,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3126 states, 3125 states have (on average 4.98496) internal successors, (15578), 3125 states have internal predecessors, (15578), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:39,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3126 states to 3126 states and 15578 transitions. [2021-03-11 14:21:39,901 INFO L78 Accepts]: Start accepts. Automaton has 3126 states and 15578 transitions. Word has length 31 [2021-03-11 14:21:39,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:21:39,901 INFO L480 AbstractCegarLoop]: Abstraction has 3126 states and 15578 transitions. [2021-03-11 14:21:39,901 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:39,901 INFO L276 IsEmpty]: Start isEmpty. Operand 3126 states and 15578 transitions. [2021-03-11 14:21:39,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:21:39,906 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:21:39,906 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:21:39,906 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable411 [2021-03-11 14:21:39,906 INFO L428 AbstractCegarLoop]: === Iteration 413 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:21:39,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:21:39,906 INFO L82 PathProgramCache]: Analyzing trace with hash -1151517107, now seen corresponding path program 404 times [2021-03-11 14:21:39,906 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:21:39,906 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1526592429] [2021-03-11 14:21:39,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:21:39,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:21:39,918 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:21:39,918 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:21:39,919 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:21:39,919 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:21:39,926 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:21:39,926 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:21:39,938 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:21:39,939 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:21:39,956 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:21:39,957 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:21:39,979 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:21:39,980 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:21:40,008 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:21:40,009 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:21:40,043 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:21:40,043 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:21:40,085 INFO L142 QuantifierPusher]: treesize reduction 45, result has 59.1 percent of original size [2021-03-11 14:21:40,085 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:21:40,164 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:21:40,165 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:21:40,224 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:21:40,224 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:21:40,277 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:21:40,277 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1526592429] [2021-03-11 14:21:40,277 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:21:40,277 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:21:40,277 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [500042655] [2021-03-11 14:21:40,277 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:21:40,278 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:21:40,278 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:21:40,278 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:21:40,278 INFO L87 Difference]: Start difference. First operand 3126 states and 15578 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:40,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:21:40,508 INFO L93 Difference]: Finished difference Result 5981 states and 26714 transitions. [2021-03-11 14:21:40,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:21:40,509 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:21:40,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:21:40,522 INFO L225 Difference]: With dead ends: 5981 [2021-03-11 14:21:40,522 INFO L226 Difference]: Without dead ends: 5958 [2021-03-11 14:21:40,522 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 425.7ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:21:40,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5958 states. [2021-03-11 14:21:40,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5958 to 3120. [2021-03-11 14:21:40,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3120 states, 3119 states have (on average 4.989099070214812) internal successors, (15561), 3119 states have internal predecessors, (15561), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:40,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3120 states to 3120 states and 15561 transitions. [2021-03-11 14:21:40,657 INFO L78 Accepts]: Start accepts. Automaton has 3120 states and 15561 transitions. Word has length 31 [2021-03-11 14:21:40,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:21:40,657 INFO L480 AbstractCegarLoop]: Abstraction has 3120 states and 15561 transitions. [2021-03-11 14:21:40,657 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:40,657 INFO L276 IsEmpty]: Start isEmpty. Operand 3120 states and 15561 transitions. [2021-03-11 14:21:40,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:21:40,662 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:21:40,662 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:21:40,662 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable412 [2021-03-11 14:21:40,662 INFO L428 AbstractCegarLoop]: === Iteration 414 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:21:40,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:21:40,663 INFO L82 PathProgramCache]: Analyzing trace with hash -1579479363, now seen corresponding path program 405 times [2021-03-11 14:21:40,663 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:21:40,663 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [710146636] [2021-03-11 14:21:40,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:21:40,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:21:40,674 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:21:40,675 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:21:40,675 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:21:40,676 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:21:40,682 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:21:40,683 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:21:40,694 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:21:40,695 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:21:40,712 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:21:40,713 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:21:40,736 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:21:40,736 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:21:40,765 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:21:40,766 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:21:40,800 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:21:40,800 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:21:40,843 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:21:40,843 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:21:40,896 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:21:40,897 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:21:40,956 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:21:40,957 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:21:41,011 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:21:41,011 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [710146636] [2021-03-11 14:21:41,011 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:21:41,011 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:21:41,011 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1088462343] [2021-03-11 14:21:41,011 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:21:41,011 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:21:41,011 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:21:41,011 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:21:41,012 INFO L87 Difference]: Start difference. First operand 3120 states and 15561 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:41,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:21:41,294 INFO L93 Difference]: Finished difference Result 5988 states and 26730 transitions. [2021-03-11 14:21:41,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:21:41,295 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:21:41,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:21:41,308 INFO L225 Difference]: With dead ends: 5988 [2021-03-11 14:21:41,308 INFO L226 Difference]: Without dead ends: 5968 [2021-03-11 14:21:41,308 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 410.1ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:21:41,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5968 states. [2021-03-11 14:21:41,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5968 to 3128. [2021-03-11 14:21:41,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3128 states, 3127 states have (on average 4.981132075471698) internal successors, (15576), 3127 states have internal predecessors, (15576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:41,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3128 states to 3128 states and 15576 transitions. [2021-03-11 14:21:41,443 INFO L78 Accepts]: Start accepts. Automaton has 3128 states and 15576 transitions. Word has length 31 [2021-03-11 14:21:41,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:21:41,443 INFO L480 AbstractCegarLoop]: Abstraction has 3128 states and 15576 transitions. [2021-03-11 14:21:41,443 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:41,443 INFO L276 IsEmpty]: Start isEmpty. Operand 3128 states and 15576 transitions. [2021-03-11 14:21:41,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:21:41,448 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:21:41,448 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:21:41,448 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable413 [2021-03-11 14:21:41,448 INFO L428 AbstractCegarLoop]: === Iteration 415 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:21:41,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:21:41,449 INFO L82 PathProgramCache]: Analyzing trace with hash -664397875, now seen corresponding path program 406 times [2021-03-11 14:21:41,449 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:21:41,449 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2010054654] [2021-03-11 14:21:41,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:21:41,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:21:41,460 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:21:41,461 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:21:41,461 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:21:41,462 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:21:41,468 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:21:41,469 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:21:41,481 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:21:41,481 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:21:41,500 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:21:41,500 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:21:41,523 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:21:41,524 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:21:41,553 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:21:41,553 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:21:41,588 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:21:41,589 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:21:41,631 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:21:41,631 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:21:41,682 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:21:41,683 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:21:41,742 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:21:41,743 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:21:41,795 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:21:41,796 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2010054654] [2021-03-11 14:21:41,796 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:21:41,796 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:21:41,796 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [941287304] [2021-03-11 14:21:41,796 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:21:41,796 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:21:41,796 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:21:41,796 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:21:41,796 INFO L87 Difference]: Start difference. First operand 3128 states and 15576 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:42,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:21:42,094 INFO L93 Difference]: Finished difference Result 5987 states and 26720 transitions. [2021-03-11 14:21:42,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:21:42,095 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:21:42,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:21:42,108 INFO L225 Difference]: With dead ends: 5987 [2021-03-11 14:21:42,108 INFO L226 Difference]: Without dead ends: 5960 [2021-03-11 14:21:42,108 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 409.5ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:21:42,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5960 states. [2021-03-11 14:21:42,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5960 to 3120. [2021-03-11 14:21:42,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3120 states, 3119 states have (on average 4.987175376723309) internal successors, (15555), 3119 states have internal predecessors, (15555), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:42,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3120 states to 3120 states and 15555 transitions. [2021-03-11 14:21:42,242 INFO L78 Accepts]: Start accepts. Automaton has 3120 states and 15555 transitions. Word has length 31 [2021-03-11 14:21:42,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:21:42,242 INFO L480 AbstractCegarLoop]: Abstraction has 3120 states and 15555 transitions. [2021-03-11 14:21:42,243 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:42,243 INFO L276 IsEmpty]: Start isEmpty. Operand 3120 states and 15555 transitions. [2021-03-11 14:21:42,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:21:42,247 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:21:42,247 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:21:42,247 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable414 [2021-03-11 14:21:42,247 INFO L428 AbstractCegarLoop]: === Iteration 416 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:21:42,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:21:42,248 INFO L82 PathProgramCache]: Analyzing trace with hash 1446205245, now seen corresponding path program 407 times [2021-03-11 14:21:42,248 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:21:42,248 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [419731553] [2021-03-11 14:21:42,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:21:42,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:21:42,260 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:21:42,260 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:21:42,261 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:21:42,262 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:21:42,268 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:21:42,269 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:21:42,281 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:21:42,281 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:21:42,298 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:21:42,299 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:21:42,322 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:21:42,323 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:21:42,352 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:21:42,353 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:21:42,388 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:21:42,388 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:21:42,430 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:21:42,431 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:21:42,480 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:21:42,481 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:21:42,540 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:21:42,540 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:21:42,593 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:21:42,593 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [419731553] [2021-03-11 14:21:42,593 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:21:42,594 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:21:42,594 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1529068077] [2021-03-11 14:21:42,594 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:21:42,594 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:21:42,594 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:21:42,594 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:21:42,594 INFO L87 Difference]: Start difference. First operand 3120 states and 15555 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:42,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:21:42,873 INFO L93 Difference]: Finished difference Result 5980 states and 26706 transitions. [2021-03-11 14:21:42,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:21:42,874 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:21:42,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:21:42,887 INFO L225 Difference]: With dead ends: 5980 [2021-03-11 14:21:42,887 INFO L226 Difference]: Without dead ends: 5963 [2021-03-11 14:21:42,887 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 401.2ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:21:42,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5963 states. [2021-03-11 14:21:43,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5963 to 3126. [2021-03-11 14:21:43,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3126 states, 3125 states have (on average 4.98112) internal successors, (15566), 3125 states have internal predecessors, (15566), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:43,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3126 states to 3126 states and 15566 transitions. [2021-03-11 14:21:43,023 INFO L78 Accepts]: Start accepts. Automaton has 3126 states and 15566 transitions. Word has length 31 [2021-03-11 14:21:43,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:21:43,023 INFO L480 AbstractCegarLoop]: Abstraction has 3126 states and 15566 transitions. [2021-03-11 14:21:43,023 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:43,023 INFO L276 IsEmpty]: Start isEmpty. Operand 3126 states and 15566 transitions. [2021-03-11 14:21:43,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:21:43,028 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:21:43,028 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:21:43,028 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable415 [2021-03-11 14:21:43,028 INFO L428 AbstractCegarLoop]: === Iteration 417 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:21:43,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:21:43,028 INFO L82 PathProgramCache]: Analyzing trace with hash -1088709111, now seen corresponding path program 408 times [2021-03-11 14:21:43,028 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:21:43,028 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1610357836] [2021-03-11 14:21:43,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:21:43,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:21:43,039 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:21:43,040 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:21:43,041 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:21:43,041 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:21:43,048 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:21:43,048 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:21:43,060 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:21:43,061 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:21:43,078 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:21:43,079 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:21:43,102 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:21:43,103 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:21:43,132 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:21:43,133 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:21:43,168 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:21:43,168 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:21:43,211 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:21:43,212 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:21:43,262 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:21:43,263 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:21:43,326 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:21:43,327 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:21:43,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:21:43,380 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1610357836] [2021-03-11 14:21:43,380 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:21:43,380 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:21:43,380 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [106221382] [2021-03-11 14:21:43,380 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:21:43,380 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:21:43,380 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:21:43,380 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:21:43,380 INFO L87 Difference]: Start difference. First operand 3126 states and 15566 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:43,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:21:43,634 INFO L93 Difference]: Finished difference Result 5982 states and 26704 transitions. [2021-03-11 14:21:43,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:21:43,635 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:21:43,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:21:43,648 INFO L225 Difference]: With dead ends: 5982 [2021-03-11 14:21:43,648 INFO L226 Difference]: Without dead ends: 5946 [2021-03-11 14:21:43,648 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 414.5ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:21:43,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5946 states. [2021-03-11 14:21:43,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5946 to 3109. [2021-03-11 14:21:43,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3109 states, 3108 states have (on average 4.9967824967824965) internal successors, (15530), 3108 states have internal predecessors, (15530), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:43,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3109 states to 3109 states and 15530 transitions. [2021-03-11 14:21:43,782 INFO L78 Accepts]: Start accepts. Automaton has 3109 states and 15530 transitions. Word has length 31 [2021-03-11 14:21:43,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:21:43,782 INFO L480 AbstractCegarLoop]: Abstraction has 3109 states and 15530 transitions. [2021-03-11 14:21:43,782 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:43,782 INFO L276 IsEmpty]: Start isEmpty. Operand 3109 states and 15530 transitions. [2021-03-11 14:21:43,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:21:43,787 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:21:43,787 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:21:43,787 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable416 [2021-03-11 14:21:43,787 INFO L428 AbstractCegarLoop]: === Iteration 418 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:21:43,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:21:43,787 INFO L82 PathProgramCache]: Analyzing trace with hash -1574137991, now seen corresponding path program 409 times [2021-03-11 14:21:43,787 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:21:43,787 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [125089788] [2021-03-11 14:21:43,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:21:43,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:21:43,799 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:21:43,799 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:21:43,800 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:21:43,800 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:21:43,807 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:21:43,808 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:21:43,819 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:21:43,820 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:21:43,837 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:21:43,838 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:21:43,863 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:21:43,864 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:21:43,893 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:21:43,894 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:21:43,929 INFO L142 QuantifierPusher]: treesize reduction 27, result has 64.5 percent of original size [2021-03-11 14:21:43,929 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 14:21:43,971 INFO L142 QuantifierPusher]: treesize reduction 45, result has 59.1 percent of original size [2021-03-11 14:21:43,971 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:21:44,048 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:21:44,048 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:21:44,106 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:21:44,107 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:21:44,161 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:21:44,161 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [125089788] [2021-03-11 14:21:44,161 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:21:44,162 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:21:44,162 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1522976680] [2021-03-11 14:21:44,162 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:21:44,162 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:21:44,162 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:21:44,162 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:21:44,162 INFO L87 Difference]: Start difference. First operand 3109 states and 15530 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:44,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:21:44,401 INFO L93 Difference]: Finished difference Result 5976 states and 26718 transitions. [2021-03-11 14:21:44,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:21:44,402 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:21:44,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:21:44,415 INFO L225 Difference]: With dead ends: 5976 [2021-03-11 14:21:44,415 INFO L226 Difference]: Without dead ends: 5960 [2021-03-11 14:21:44,415 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 430.1ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:21:44,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5960 states. [2021-03-11 14:21:44,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5960 to 3124. [2021-03-11 14:21:44,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3124 states, 3123 states have (on average 4.989433237271854) internal successors, (15582), 3123 states have internal predecessors, (15582), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:44,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3124 states to 3124 states and 15582 transitions. [2021-03-11 14:21:44,550 INFO L78 Accepts]: Start accepts. Automaton has 3124 states and 15582 transitions. Word has length 31 [2021-03-11 14:21:44,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:21:44,550 INFO L480 AbstractCegarLoop]: Abstraction has 3124 states and 15582 transitions. [2021-03-11 14:21:44,550 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:44,550 INFO L276 IsEmpty]: Start isEmpty. Operand 3124 states and 15582 transitions. [2021-03-11 14:21:44,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:21:44,555 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:21:44,555 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:21:44,555 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable417 [2021-03-11 14:21:44,555 INFO L428 AbstractCegarLoop]: === Iteration 419 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:21:44,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:21:44,555 INFO L82 PathProgramCache]: Analyzing trace with hash 1875857853, now seen corresponding path program 410 times [2021-03-11 14:21:44,555 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:21:44,555 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [174992941] [2021-03-11 14:21:44,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:21:44,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:21:44,567 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:21:44,567 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:21:44,568 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:21:44,568 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:21:44,575 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:21:44,576 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:21:44,588 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:21:44,588 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:21:44,606 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:21:44,606 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:21:44,630 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:21:44,631 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:21:44,660 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:21:44,661 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:21:44,696 INFO L142 QuantifierPusher]: treesize reduction 27, result has 64.5 percent of original size [2021-03-11 14:21:44,697 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 14:21:44,738 INFO L142 QuantifierPusher]: treesize reduction 45, result has 59.1 percent of original size [2021-03-11 14:21:44,739 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:21:44,817 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:21:44,817 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:21:44,878 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:21:44,879 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:21:44,932 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:21:44,933 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [174992941] [2021-03-11 14:21:44,933 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:21:44,933 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:21:44,933 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [675926001] [2021-03-11 14:21:44,933 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:21:44,933 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:21:44,933 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:21:44,933 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:21:44,933 INFO L87 Difference]: Start difference. First operand 3124 states and 15582 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:45,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:21:45,177 INFO L93 Difference]: Finished difference Result 5980 states and 26721 transitions. [2021-03-11 14:21:45,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:21:45,178 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:21:45,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:21:45,192 INFO L225 Difference]: With dead ends: 5980 [2021-03-11 14:21:45,192 INFO L226 Difference]: Without dead ends: 5955 [2021-03-11 14:21:45,192 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 442.7ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:21:45,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5955 states. [2021-03-11 14:21:45,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5955 to 3119. [2021-03-11 14:21:45,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3119 states, 3118 states have (on average 4.9929441949967925) internal successors, (15568), 3118 states have internal predecessors, (15568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:45,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3119 states to 3119 states and 15568 transitions. [2021-03-11 14:21:45,327 INFO L78 Accepts]: Start accepts. Automaton has 3119 states and 15568 transitions. Word has length 31 [2021-03-11 14:21:45,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:21:45,327 INFO L480 AbstractCegarLoop]: Abstraction has 3119 states and 15568 transitions. [2021-03-11 14:21:45,328 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:45,328 INFO L276 IsEmpty]: Start isEmpty. Operand 3119 states and 15568 transitions. [2021-03-11 14:21:45,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:21:45,333 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:21:45,333 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:21:45,333 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable418 [2021-03-11 14:21:45,333 INFO L428 AbstractCegarLoop]: === Iteration 420 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:21:45,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:21:45,333 INFO L82 PathProgramCache]: Analyzing trace with hash 1872206833, now seen corresponding path program 411 times [2021-03-11 14:21:45,333 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:21:45,333 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1664802652] [2021-03-11 14:21:45,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:21:45,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:21:45,345 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:21:45,346 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:21:45,346 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:21:45,347 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:21:45,354 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:21:45,355 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:21:45,367 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:21:45,368 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:21:45,385 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:21:45,386 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:21:45,409 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:21:45,410 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:21:45,439 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:21:45,440 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:21:45,474 INFO L142 QuantifierPusher]: treesize reduction 27, result has 64.5 percent of original size [2021-03-11 14:21:45,475 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 14:21:45,516 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:21:45,517 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:21:45,567 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:21:45,568 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:21:45,626 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:21:45,627 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:21:45,681 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:21:45,681 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1664802652] [2021-03-11 14:21:45,681 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:21:45,681 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:21:45,681 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [71705552] [2021-03-11 14:21:45,682 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:21:45,682 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:21:45,682 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:21:45,682 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:21:45,682 INFO L87 Difference]: Start difference. First operand 3119 states and 15568 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:45,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:21:45,937 INFO L93 Difference]: Finished difference Result 5974 states and 26709 transitions. [2021-03-11 14:21:45,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:21:45,938 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:21:45,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:21:45,952 INFO L225 Difference]: With dead ends: 5974 [2021-03-11 14:21:45,952 INFO L226 Difference]: Without dead ends: 5958 [2021-03-11 14:21:45,952 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 406.1ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:21:46,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5958 states. [2021-03-11 14:21:46,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5958 to 3124. [2021-03-11 14:21:46,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3124 states, 3123 states have (on average 4.987832212616074) internal successors, (15577), 3123 states have internal predecessors, (15577), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:46,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3124 states to 3124 states and 15577 transitions. [2021-03-11 14:21:46,090 INFO L78 Accepts]: Start accepts. Automaton has 3124 states and 15577 transitions. Word has length 31 [2021-03-11 14:21:46,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:21:46,090 INFO L480 AbstractCegarLoop]: Abstraction has 3124 states and 15577 transitions. [2021-03-11 14:21:46,090 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:46,090 INFO L276 IsEmpty]: Start isEmpty. Operand 3124 states and 15577 transitions. [2021-03-11 14:21:46,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:21:46,095 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:21:46,095 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:21:46,095 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable419 [2021-03-11 14:21:46,095 INFO L428 AbstractCegarLoop]: === Iteration 421 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:21:46,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:21:46,095 INFO L82 PathProgramCache]: Analyzing trace with hash -662707523, now seen corresponding path program 412 times [2021-03-11 14:21:46,095 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:21:46,095 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [84200910] [2021-03-11 14:21:46,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:21:46,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:21:46,107 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:21:46,107 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:21:46,108 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:21:46,108 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:21:46,116 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:21:46,116 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:21:46,128 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:21:46,129 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:21:46,147 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:21:46,147 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:21:46,175 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:21:46,175 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:21:46,206 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:21:46,207 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:21:46,243 INFO L142 QuantifierPusher]: treesize reduction 27, result has 64.5 percent of original size [2021-03-11 14:21:46,243 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 14:21:46,286 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:21:46,287 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:21:46,339 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:21:46,340 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:21:46,404 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:21:46,405 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:21:46,468 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:21:46,468 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [84200910] [2021-03-11 14:21:46,468 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:21:46,468 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:21:46,468 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1678868972] [2021-03-11 14:21:46,468 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:21:46,468 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:21:46,469 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:21:46,469 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:21:46,469 INFO L87 Difference]: Start difference. First operand 3124 states and 15577 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:46,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:21:46,753 INFO L93 Difference]: Finished difference Result 5976 states and 26708 transitions. [2021-03-11 14:21:46,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:21:46,754 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:21:46,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:21:46,767 INFO L225 Difference]: With dead ends: 5976 [2021-03-11 14:21:46,768 INFO L226 Difference]: Without dead ends: 5953 [2021-03-11 14:21:46,768 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 427.3ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:21:46,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5953 states. [2021-03-11 14:21:46,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5953 to 3119. [2021-03-11 14:21:46,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3119 states, 3118 states have (on average 4.9913406029506096) internal successors, (15563), 3118 states have internal predecessors, (15563), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:46,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3119 states to 3119 states and 15563 transitions. [2021-03-11 14:21:46,904 INFO L78 Accepts]: Start accepts. Automaton has 3119 states and 15563 transitions. Word has length 31 [2021-03-11 14:21:46,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:21:46,904 INFO L480 AbstractCegarLoop]: Abstraction has 3119 states and 15563 transitions. [2021-03-11 14:21:46,904 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:46,904 INFO L276 IsEmpty]: Start isEmpty. Operand 3119 states and 15563 transitions. [2021-03-11 14:21:46,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:21:46,909 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:21:46,909 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:21:46,909 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable420 [2021-03-11 14:21:46,909 INFO L428 AbstractCegarLoop]: === Iteration 422 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:21:46,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:21:46,909 INFO L82 PathProgramCache]: Analyzing trace with hash 602924145, now seen corresponding path program 413 times [2021-03-11 14:21:46,909 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:21:46,909 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1771889851] [2021-03-11 14:21:46,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:21:46,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:21:46,921 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:21:46,921 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:21:46,922 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:21:46,922 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:21:46,929 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:21:46,930 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:21:46,942 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:21:46,943 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:21:46,961 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:21:46,962 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:21:46,987 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:21:46,988 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:21:47,018 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:21:47,019 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:21:47,056 INFO L142 QuantifierPusher]: treesize reduction 27, result has 64.5 percent of original size [2021-03-11 14:21:47,056 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 14:21:47,100 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:21:47,100 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:21:47,154 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:21:47,155 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:21:47,218 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:21:47,219 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:21:47,273 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:21:47,273 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1771889851] [2021-03-11 14:21:47,273 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:21:47,273 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:21:47,273 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [785125283] [2021-03-11 14:21:47,273 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:21:47,273 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:21:47,274 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:21:47,274 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:21:47,274 INFO L87 Difference]: Start difference. First operand 3119 states and 15563 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:47,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:21:47,532 INFO L93 Difference]: Finished difference Result 5984 states and 26726 transitions. [2021-03-11 14:21:47,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:21:47,534 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:21:47,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:21:47,546 INFO L225 Difference]: With dead ends: 5984 [2021-03-11 14:21:47,546 INFO L226 Difference]: Without dead ends: 5964 [2021-03-11 14:21:47,547 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 427.6ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:21:47,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5964 states. [2021-03-11 14:21:47,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5964 to 3126. [2021-03-11 14:21:47,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3126 states, 3125 states have (on average 4.98432) internal successors, (15576), 3125 states have internal predecessors, (15576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:47,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3126 states to 3126 states and 15576 transitions. [2021-03-11 14:21:47,681 INFO L78 Accepts]: Start accepts. Automaton has 3126 states and 15576 transitions. Word has length 31 [2021-03-11 14:21:47,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:21:47,681 INFO L480 AbstractCegarLoop]: Abstraction has 3126 states and 15576 transitions. [2021-03-11 14:21:47,681 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:47,681 INFO L276 IsEmpty]: Start isEmpty. Operand 3126 states and 15576 transitions. [2021-03-11 14:21:47,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:21:47,686 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:21:47,686 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:21:47,686 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable421 [2021-03-11 14:21:47,686 INFO L428 AbstractCegarLoop]: === Iteration 423 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:21:47,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:21:47,686 INFO L82 PathProgramCache]: Analyzing trace with hash -1087018759, now seen corresponding path program 414 times [2021-03-11 14:21:47,686 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:21:47,686 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2130893209] [2021-03-11 14:21:47,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:21:47,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:21:47,698 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:21:47,699 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:21:47,699 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:21:47,700 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:21:47,707 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:21:47,708 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:21:47,721 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:21:47,721 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:21:47,740 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:21:47,740 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:21:47,765 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:21:47,766 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:21:47,796 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:21:47,797 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:21:47,835 INFO L142 QuantifierPusher]: treesize reduction 27, result has 64.5 percent of original size [2021-03-11 14:21:47,835 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 14:21:47,877 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:21:47,878 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:21:47,929 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:21:47,930 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:21:47,990 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:21:47,991 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:21:48,045 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:21:48,045 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2130893209] [2021-03-11 14:21:48,045 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:21:48,046 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:21:48,046 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1915511171] [2021-03-11 14:21:48,046 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:21:48,046 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:21:48,046 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:21:48,046 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:21:48,046 INFO L87 Difference]: Start difference. First operand 3126 states and 15576 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:48,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:21:48,286 INFO L93 Difference]: Finished difference Result 5982 states and 26715 transitions. [2021-03-11 14:21:48,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:21:48,288 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:21:48,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:21:48,300 INFO L225 Difference]: With dead ends: 5982 [2021-03-11 14:21:48,301 INFO L226 Difference]: Without dead ends: 5952 [2021-03-11 14:21:48,301 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 415.1ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:21:48,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5952 states. [2021-03-11 14:21:48,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5952 to 3114. [2021-03-11 14:21:48,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3114 states, 3113 states have (on average 4.9948602634115) internal successors, (15549), 3113 states have internal predecessors, (15549), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:48,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3114 states to 3114 states and 15549 transitions. [2021-03-11 14:21:48,435 INFO L78 Accepts]: Start accepts. Automaton has 3114 states and 15549 transitions. Word has length 31 [2021-03-11 14:21:48,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:21:48,435 INFO L480 AbstractCegarLoop]: Abstraction has 3114 states and 15549 transitions. [2021-03-11 14:21:48,435 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:48,435 INFO L276 IsEmpty]: Start isEmpty. Operand 3114 states and 15549 transitions. [2021-03-11 14:21:48,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:21:48,440 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:21:48,440 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:21:48,440 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable422 [2021-03-11 14:21:48,440 INFO L428 AbstractCegarLoop]: === Iteration 424 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:21:48,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:21:48,440 INFO L82 PathProgramCache]: Analyzing trace with hash -2111630847, now seen corresponding path program 415 times [2021-03-11 14:21:48,440 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:21:48,440 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [279333872] [2021-03-11 14:21:48,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:21:48,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:21:48,452 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:21:48,453 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:21:48,453 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:21:48,454 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:21:48,460 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:21:48,461 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:21:48,473 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:21:48,474 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:21:48,492 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:21:48,492 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:21:48,516 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:21:48,517 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:21:48,547 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:21:48,547 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:21:48,583 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:21:48,584 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:21:48,655 INFO L142 QuantifierPusher]: treesize reduction 45, result has 59.1 percent of original size [2021-03-11 14:21:48,655 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:21:48,735 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:21:48,736 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:21:48,796 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:21:48,796 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:21:48,851 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:21:48,851 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [279333872] [2021-03-11 14:21:48,851 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:21:48,851 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:21:48,851 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1581681087] [2021-03-11 14:21:48,851 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:21:48,851 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:21:48,851 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:21:48,851 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:21:48,852 INFO L87 Difference]: Start difference. First operand 3114 states and 15549 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:49,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:21:49,096 INFO L93 Difference]: Finished difference Result 5978 states and 26718 transitions. [2021-03-11 14:21:49,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:21:49,097 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:21:49,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:21:49,110 INFO L225 Difference]: With dead ends: 5978 [2021-03-11 14:21:49,110 INFO L226 Difference]: Without dead ends: 5962 [2021-03-11 14:21:49,110 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 468.1ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:21:49,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5962 states. [2021-03-11 14:21:49,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5962 to 3124. [2021-03-11 14:21:49,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3124 states, 3123 states have (on average 4.987832212616074) internal successors, (15577), 3123 states have internal predecessors, (15577), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:49,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3124 states to 3124 states and 15577 transitions. [2021-03-11 14:21:49,246 INFO L78 Accepts]: Start accepts. Automaton has 3124 states and 15577 transitions. Word has length 31 [2021-03-11 14:21:49,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:21:49,246 INFO L480 AbstractCegarLoop]: Abstraction has 3124 states and 15577 transitions. [2021-03-11 14:21:49,246 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:49,246 INFO L276 IsEmpty]: Start isEmpty. Operand 3124 states and 15577 transitions. [2021-03-11 14:21:49,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:21:49,251 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:21:49,251 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:21:49,251 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable423 [2021-03-11 14:21:49,251 INFO L428 AbstractCegarLoop]: === Iteration 425 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:21:49,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:21:49,251 INFO L82 PathProgramCache]: Analyzing trace with hash 1338364997, now seen corresponding path program 416 times [2021-03-11 14:21:49,251 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:21:49,251 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2057773232] [2021-03-11 14:21:49,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:21:49,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:21:49,263 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:21:49,264 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:21:49,265 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:21:49,265 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:21:49,272 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:21:49,272 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:21:49,285 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:21:49,285 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:21:49,303 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:21:49,304 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:21:49,328 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:21:49,329 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:21:49,359 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:21:49,360 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:21:49,395 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:21:49,396 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:21:49,467 INFO L142 QuantifierPusher]: treesize reduction 45, result has 59.1 percent of original size [2021-03-11 14:21:49,468 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:21:49,547 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:21:49,548 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:21:49,611 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:21:49,612 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:21:49,667 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:21:49,667 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2057773232] [2021-03-11 14:21:49,667 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:21:49,667 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:21:49,667 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1635798797] [2021-03-11 14:21:49,668 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:21:49,668 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:21:49,668 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:21:49,668 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:21:49,668 INFO L87 Difference]: Start difference. First operand 3124 states and 15577 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:49,951 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 41 [2021-03-11 14:21:49,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:21:49,973 INFO L93 Difference]: Finished difference Result 5982 states and 26721 transitions. [2021-03-11 14:21:49,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:21:49,974 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:21:49,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:21:49,987 INFO L225 Difference]: With dead ends: 5982 [2021-03-11 14:21:49,988 INFO L226 Difference]: Without dead ends: 5957 [2021-03-11 14:21:49,988 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 513.9ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:21:50,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5957 states. [2021-03-11 14:21:50,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5957 to 3119. [2021-03-11 14:21:50,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3119 states, 3118 states have (on average 4.9913406029506096) internal successors, (15563), 3118 states have internal predecessors, (15563), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:50,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3119 states to 3119 states and 15563 transitions. [2021-03-11 14:21:50,122 INFO L78 Accepts]: Start accepts. Automaton has 3119 states and 15563 transitions. Word has length 31 [2021-03-11 14:21:50,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:21:50,122 INFO L480 AbstractCegarLoop]: Abstraction has 3119 states and 15563 transitions. [2021-03-11 14:21:50,122 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:50,122 INFO L276 IsEmpty]: Start isEmpty. Operand 3119 states and 15563 transitions. [2021-03-11 14:21:50,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:21:50,127 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:21:50,127 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:21:50,127 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable424 [2021-03-11 14:21:50,127 INFO L428 AbstractCegarLoop]: === Iteration 426 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:21:50,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:21:50,127 INFO L82 PathProgramCache]: Analyzing trace with hash 486091505, now seen corresponding path program 417 times [2021-03-11 14:21:50,127 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:21:50,127 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [72353467] [2021-03-11 14:21:50,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:21:50,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:21:50,139 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:21:50,140 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:21:50,140 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:21:50,141 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:21:50,147 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:21:50,148 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:21:50,160 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:21:50,160 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:21:50,184 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:21:50,185 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:21:50,211 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:21:50,211 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:21:50,241 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:21:50,241 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:21:50,276 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:21:50,277 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:21:50,349 INFO L142 QuantifierPusher]: treesize reduction 45, result has 59.1 percent of original size [2021-03-11 14:21:50,350 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:21:50,432 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:21:50,433 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:21:50,493 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:21:50,494 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:21:50,549 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:21:50,549 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [72353467] [2021-03-11 14:21:50,549 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:21:50,549 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:21:50,549 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1649690261] [2021-03-11 14:21:50,549 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:21:50,549 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:21:50,549 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:21:50,550 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:21:50,550 INFO L87 Difference]: Start difference. First operand 3119 states and 15563 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:50,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:21:50,808 INFO L93 Difference]: Finished difference Result 5977 states and 26711 transitions. [2021-03-11 14:21:50,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:21:50,809 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:21:50,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:21:50,822 INFO L225 Difference]: With dead ends: 5977 [2021-03-11 14:21:50,823 INFO L226 Difference]: Without dead ends: 5961 [2021-03-11 14:21:50,823 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 478.1ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:21:50,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5961 states. [2021-03-11 14:21:50,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5961 to 3124. [2021-03-11 14:21:50,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3124 states, 3123 states have (on average 4.9862311879602945) internal successors, (15572), 3123 states have internal predecessors, (15572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:50,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3124 states to 3124 states and 15572 transitions. [2021-03-11 14:21:50,960 INFO L78 Accepts]: Start accepts. Automaton has 3124 states and 15572 transitions. Word has length 31 [2021-03-11 14:21:50,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:21:50,960 INFO L480 AbstractCegarLoop]: Abstraction has 3124 states and 15572 transitions. [2021-03-11 14:21:50,960 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:50,960 INFO L276 IsEmpty]: Start isEmpty. Operand 3124 states and 15572 transitions. [2021-03-11 14:21:50,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:21:50,965 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:21:50,965 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:21:50,965 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable425 [2021-03-11 14:21:50,965 INFO L428 AbstractCegarLoop]: === Iteration 427 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:21:50,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:21:50,965 INFO L82 PathProgramCache]: Analyzing trace with hash 556201541, now seen corresponding path program 418 times [2021-03-11 14:21:50,965 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:21:50,965 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1167071596] [2021-03-11 14:21:50,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:21:50,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:21:50,977 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:21:50,978 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:21:50,978 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:21:50,979 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:21:50,986 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:21:50,986 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:21:50,998 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:21:50,999 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:21:51,016 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:21:51,017 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:21:51,041 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:21:51,042 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:21:51,073 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:21:51,074 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:21:51,109 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:21:51,110 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:21:51,181 INFO L142 QuantifierPusher]: treesize reduction 45, result has 59.1 percent of original size [2021-03-11 14:21:51,182 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:21:51,265 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:21:51,266 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:21:51,327 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:21:51,327 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:21:51,381 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:21:51,381 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1167071596] [2021-03-11 14:21:51,381 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:21:51,381 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:21:51,381 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1969744671] [2021-03-11 14:21:51,382 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:21:51,382 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:21:51,382 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:21:51,382 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:21:51,382 INFO L87 Difference]: Start difference. First operand 3124 states and 15572 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:51,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:21:51,668 INFO L93 Difference]: Finished difference Result 5980 states and 26712 transitions. [2021-03-11 14:21:51,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:21:51,669 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:21:51,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:21:51,683 INFO L225 Difference]: With dead ends: 5980 [2021-03-11 14:21:51,683 INFO L226 Difference]: Without dead ends: 5956 [2021-03-11 14:21:51,683 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 484.4ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:21:51,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5956 states. [2021-03-11 14:21:51,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5956 to 3119. [2021-03-11 14:21:51,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3119 states, 3118 states have (on average 4.989737010904426) internal successors, (15558), 3118 states have internal predecessors, (15558), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:51,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3119 states to 3119 states and 15558 transitions. [2021-03-11 14:21:51,825 INFO L78 Accepts]: Start accepts. Automaton has 3119 states and 15558 transitions. Word has length 31 [2021-03-11 14:21:51,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:21:51,825 INFO L480 AbstractCegarLoop]: Abstraction has 3119 states and 15558 transitions. [2021-03-11 14:21:51,825 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:51,825 INFO L276 IsEmpty]: Start isEmpty. Operand 3119 states and 15558 transitions. [2021-03-11 14:21:51,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:21:51,830 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:21:51,830 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:21:51,830 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable426 [2021-03-11 14:21:51,830 INFO L428 AbstractCegarLoop]: === Iteration 428 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:21:51,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:21:51,830 INFO L82 PathProgramCache]: Analyzing trace with hash -783191183, now seen corresponding path program 419 times [2021-03-11 14:21:51,830 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:21:51,830 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [208170187] [2021-03-11 14:21:51,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:21:51,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:21:51,842 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:21:51,843 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:21:51,843 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:21:51,844 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:21:51,851 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:21:51,852 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:21:51,865 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:21:51,865 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:21:51,884 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:21:51,885 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:21:51,910 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:21:51,910 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:21:51,942 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:21:51,942 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:21:51,980 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:21:51,981 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:21:52,058 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:21:52,058 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:21:52,114 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:21:52,115 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:21:52,181 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:21:52,181 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:21:52,239 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:21:52,239 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [208170187] [2021-03-11 14:21:52,239 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:21:52,239 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:21:52,239 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [947531733] [2021-03-11 14:21:52,239 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:21:52,239 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:21:52,239 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:21:52,239 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:21:52,239 INFO L87 Difference]: Start difference. First operand 3119 states and 15558 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:52,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:21:52,579 INFO L93 Difference]: Finished difference Result 5988 states and 26731 transitions. [2021-03-11 14:21:52,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:21:52,581 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:21:52,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:21:52,595 INFO L225 Difference]: With dead ends: 5988 [2021-03-11 14:21:52,595 INFO L226 Difference]: Without dead ends: 5968 [2021-03-11 14:21:52,595 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 477.2ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:21:52,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5968 states. [2021-03-11 14:21:52,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5968 to 3127. [2021-03-11 14:21:52,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3127 states, 3126 states have (on average 4.981765834932822) internal successors, (15573), 3126 states have internal predecessors, (15573), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:52,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3127 states to 3127 states and 15573 transitions. [2021-03-11 14:21:52,732 INFO L78 Accepts]: Start accepts. Automaton has 3127 states and 15573 transitions. Word has length 31 [2021-03-11 14:21:52,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:21:52,732 INFO L480 AbstractCegarLoop]: Abstraction has 3127 states and 15573 transitions. [2021-03-11 14:21:52,732 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:52,732 INFO L276 IsEmpty]: Start isEmpty. Operand 3127 states and 15573 transitions. [2021-03-11 14:21:52,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:21:52,738 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:21:52,738 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:21:52,738 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable427 [2021-03-11 14:21:52,738 INFO L428 AbstractCegarLoop]: === Iteration 429 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:21:52,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:21:52,738 INFO L82 PathProgramCache]: Analyzing trace with hash 131890305, now seen corresponding path program 420 times [2021-03-11 14:21:52,738 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:21:52,738 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1406875112] [2021-03-11 14:21:52,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:21:52,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:21:52,750 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:21:52,750 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:21:52,751 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:21:52,752 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:21:52,758 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:21:52,759 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:21:52,771 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:21:52,771 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:21:52,789 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:21:52,789 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:21:52,813 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:21:52,813 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:21:52,843 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:21:52,843 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:21:52,881 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:21:52,882 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:21:52,953 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:21:52,954 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:21:53,005 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:21:53,006 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:21:53,065 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:21:53,066 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:21:53,119 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:21:53,119 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1406875112] [2021-03-11 14:21:53,119 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:21:53,119 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:21:53,119 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [954623441] [2021-03-11 14:21:53,119 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:21:53,119 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:21:53,120 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:21:53,120 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:21:53,120 INFO L87 Difference]: Start difference. First operand 3127 states and 15573 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:53,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:21:53,430 INFO L93 Difference]: Finished difference Result 5987 states and 26721 transitions. [2021-03-11 14:21:53,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:21:53,431 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:21:53,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:21:53,444 INFO L225 Difference]: With dead ends: 5987 [2021-03-11 14:21:53,444 INFO L226 Difference]: Without dead ends: 5955 [2021-03-11 14:21:53,444 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 442.4ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:21:53,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5955 states. [2021-03-11 14:21:53,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5955 to 3114. [2021-03-11 14:21:53,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3114 states, 3113 states have (on average 4.993254095727594) internal successors, (15544), 3113 states have internal predecessors, (15544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:53,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3114 states to 3114 states and 15544 transitions. [2021-03-11 14:21:53,579 INFO L78 Accepts]: Start accepts. Automaton has 3114 states and 15544 transitions. Word has length 31 [2021-03-11 14:21:53,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:21:53,579 INFO L480 AbstractCegarLoop]: Abstraction has 3114 states and 15544 transitions. [2021-03-11 14:21:53,579 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:53,579 INFO L276 IsEmpty]: Start isEmpty. Operand 3114 states and 15544 transitions. [2021-03-11 14:21:53,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:21:53,584 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:21:53,584 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:21:53,584 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable428 [2021-03-11 14:21:53,584 INFO L428 AbstractCegarLoop]: === Iteration 430 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:21:53,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:21:53,584 INFO L82 PathProgramCache]: Analyzing trace with hash 797221121, now seen corresponding path program 421 times [2021-03-11 14:21:53,584 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:21:53,584 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1977605517] [2021-03-11 14:21:53,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:21:53,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:21:53,595 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:21:53,596 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:21:53,597 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:21:53,597 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:21:53,604 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:21:53,604 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:21:53,616 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:21:53,617 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:21:53,634 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:21:53,635 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:21:53,659 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:21:53,659 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:21:53,689 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:21:53,690 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:21:53,725 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:21:53,725 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:21:53,767 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:21:53,768 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:21:53,817 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:21:53,818 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:21:53,876 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:21:53,877 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:21:53,930 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:21:53,931 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1977605517] [2021-03-11 14:21:53,931 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:21:53,931 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:21:53,931 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907213262] [2021-03-11 14:21:53,931 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:21:53,931 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:21:53,931 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:21:53,931 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:21:53,931 INFO L87 Difference]: Start difference. First operand 3114 states and 15544 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:54,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:21:54,207 INFO L93 Difference]: Finished difference Result 5973 states and 26702 transitions. [2021-03-11 14:21:54,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:21:54,208 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:21:54,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:21:54,221 INFO L225 Difference]: With dead ends: 5973 [2021-03-11 14:21:54,221 INFO L226 Difference]: Without dead ends: 5957 [2021-03-11 14:21:54,221 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 403.3ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:21:54,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5957 states. [2021-03-11 14:21:54,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5957 to 3124. [2021-03-11 14:21:54,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3124 states, 3123 states have (on average 4.9862311879602945) internal successors, (15572), 3123 states have internal predecessors, (15572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:54,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3124 states to 3124 states and 15572 transitions. [2021-03-11 14:21:54,355 INFO L78 Accepts]: Start accepts. Automaton has 3124 states and 15572 transitions. Word has length 31 [2021-03-11 14:21:54,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:21:54,355 INFO L480 AbstractCegarLoop]: Abstraction has 3124 states and 15572 transitions. [2021-03-11 14:21:54,355 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:54,355 INFO L276 IsEmpty]: Start isEmpty. Operand 3124 states and 15572 transitions. [2021-03-11 14:21:54,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:21:54,360 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:21:54,360 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:21:54,360 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable429 [2021-03-11 14:21:54,360 INFO L428 AbstractCegarLoop]: === Iteration 431 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:21:54,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:21:54,360 INFO L82 PathProgramCache]: Analyzing trace with hash -1737693235, now seen corresponding path program 422 times [2021-03-11 14:21:54,360 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:21:54,360 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1739538773] [2021-03-11 14:21:54,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:21:54,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:21:54,372 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:21:54,372 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:21:54,373 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:21:54,373 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:21:54,380 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:21:54,381 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:21:54,393 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:21:54,393 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:21:54,412 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:21:54,412 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:21:54,436 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:21:54,436 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:21:54,465 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:21:54,466 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:21:54,501 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:21:54,502 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:21:54,545 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:21:54,545 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:21:54,596 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:21:54,597 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:21:54,658 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:21:54,658 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:21:54,713 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:21:54,713 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1739538773] [2021-03-11 14:21:54,713 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:21:54,713 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:21:54,713 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1962057957] [2021-03-11 14:21:54,714 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:21:54,714 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:21:54,714 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:21:54,714 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:21:54,714 INFO L87 Difference]: Start difference. First operand 3124 states and 15572 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:55,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:21:55,004 INFO L93 Difference]: Finished difference Result 5975 states and 26701 transitions. [2021-03-11 14:21:55,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:21:55,006 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:21:55,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:21:55,018 INFO L225 Difference]: With dead ends: 5975 [2021-03-11 14:21:55,018 INFO L226 Difference]: Without dead ends: 5952 [2021-03-11 14:21:55,019 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 409.5ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:21:55,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5952 states. [2021-03-11 14:21:55,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5952 to 3119. [2021-03-11 14:21:55,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3119 states, 3118 states have (on average 4.989737010904426) internal successors, (15558), 3118 states have internal predecessors, (15558), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:55,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3119 states to 3119 states and 15558 transitions. [2021-03-11 14:21:55,155 INFO L78 Accepts]: Start accepts. Automaton has 3119 states and 15558 transitions. Word has length 31 [2021-03-11 14:21:55,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:21:55,156 INFO L480 AbstractCegarLoop]: Abstraction has 3119 states and 15558 transitions. [2021-03-11 14:21:55,156 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:55,156 INFO L276 IsEmpty]: Start isEmpty. Operand 3119 states and 15558 transitions. [2021-03-11 14:21:55,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:21:55,160 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:21:55,160 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:21:55,161 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable430 [2021-03-11 14:21:55,161 INFO L428 AbstractCegarLoop]: === Iteration 432 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:21:55,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:21:55,161 INFO L82 PathProgramCache]: Analyzing trace with hash -51401351, now seen corresponding path program 423 times [2021-03-11 14:21:55,161 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:21:55,161 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [520399694] [2021-03-11 14:21:55,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:21:55,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:21:55,177 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:21:55,178 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:21:55,179 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:21:55,179 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:21:55,186 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:21:55,187 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:21:55,199 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:21:55,200 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:21:55,217 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:21:55,218 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:21:55,242 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:21:55,242 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:21:55,271 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:21:55,272 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:21:55,307 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:21:55,308 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:21:55,350 INFO L142 QuantifierPusher]: treesize reduction 45, result has 59.1 percent of original size [2021-03-11 14:21:55,351 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:21:55,434 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:21:55,435 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:21:55,494 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:21:55,495 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:21:55,548 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:21:55,549 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [520399694] [2021-03-11 14:21:55,549 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:21:55,549 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:21:55,549 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1791965038] [2021-03-11 14:21:55,549 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:21:55,549 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:21:55,549 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:21:55,549 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:21:55,549 INFO L87 Difference]: Start difference. First operand 3119 states and 15558 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:55,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:21:55,802 INFO L93 Difference]: Finished difference Result 5974 states and 26699 transitions. [2021-03-11 14:21:55,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:21:55,803 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:21:55,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:21:55,816 INFO L225 Difference]: With dead ends: 5974 [2021-03-11 14:21:55,816 INFO L226 Difference]: Without dead ends: 5958 [2021-03-11 14:21:55,816 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 438.8ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:21:55,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5958 states. [2021-03-11 14:21:55,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5958 to 3124. [2021-03-11 14:21:55,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3124 states, 3123 states have (on average 4.984630163304515) internal successors, (15567), 3123 states have internal predecessors, (15567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:55,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3124 states to 3124 states and 15567 transitions. [2021-03-11 14:21:55,953 INFO L78 Accepts]: Start accepts. Automaton has 3124 states and 15567 transitions. Word has length 31 [2021-03-11 14:21:55,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:21:55,953 INFO L480 AbstractCegarLoop]: Abstraction has 3124 states and 15567 transitions. [2021-03-11 14:21:55,953 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:55,953 INFO L276 IsEmpty]: Start isEmpty. Operand 3124 states and 15567 transitions. [2021-03-11 14:21:55,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:21:55,958 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:21:55,958 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:21:55,958 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable431 [2021-03-11 14:21:55,958 INFO L428 AbstractCegarLoop]: === Iteration 433 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:21:55,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:21:55,958 INFO L82 PathProgramCache]: Analyzing trace with hash 18708685, now seen corresponding path program 424 times [2021-03-11 14:21:55,958 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:21:55,958 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2126278760] [2021-03-11 14:21:55,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:21:55,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:21:55,970 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:21:55,970 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:21:55,971 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:21:55,971 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:21:55,978 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:21:55,979 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:21:55,992 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:21:55,992 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:21:56,010 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:21:56,010 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:21:56,034 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:21:56,035 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:21:56,065 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:21:56,066 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:21:56,101 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:21:56,102 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:21:56,145 INFO L142 QuantifierPusher]: treesize reduction 45, result has 59.1 percent of original size [2021-03-11 14:21:56,146 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:21:56,230 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:21:56,230 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:21:56,290 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:21:56,291 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:21:56,345 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:21:56,345 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2126278760] [2021-03-11 14:21:56,345 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:21:56,345 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:21:56,346 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1713519123] [2021-03-11 14:21:56,346 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:21:56,346 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:21:56,346 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:21:56,346 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:21:56,346 INFO L87 Difference]: Start difference. First operand 3124 states and 15567 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:56,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:21:56,604 INFO L93 Difference]: Finished difference Result 5977 states and 26700 transitions. [2021-03-11 14:21:56,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:21:56,606 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:21:56,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:21:56,618 INFO L225 Difference]: With dead ends: 5977 [2021-03-11 14:21:56,619 INFO L226 Difference]: Without dead ends: 5953 [2021-03-11 14:21:56,619 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 450.2ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:21:56,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5953 states. [2021-03-11 14:21:56,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5953 to 3119. [2021-03-11 14:21:56,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3119 states, 3118 states have (on average 4.988133418858243) internal successors, (15553), 3118 states have internal predecessors, (15553), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:56,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3119 states to 3119 states and 15553 transitions. [2021-03-11 14:21:56,753 INFO L78 Accepts]: Start accepts. Automaton has 3119 states and 15553 transitions. Word has length 31 [2021-03-11 14:21:56,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:21:56,753 INFO L480 AbstractCegarLoop]: Abstraction has 3119 states and 15553 transitions. [2021-03-11 14:21:56,753 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:56,753 INFO L276 IsEmpty]: Start isEmpty. Operand 3119 states and 15553 transitions. [2021-03-11 14:21:56,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:21:56,758 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:21:56,758 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:21:56,758 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable432 [2021-03-11 14:21:56,758 INFO L428 AbstractCegarLoop]: === Iteration 434 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:21:56,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:21:56,758 INFO L82 PathProgramCache]: Analyzing trace with hash 435717881, now seen corresponding path program 425 times [2021-03-11 14:21:56,759 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:21:56,759 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1942609656] [2021-03-11 14:21:56,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:21:56,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:21:56,770 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:21:56,771 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:21:56,771 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:21:56,772 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:21:56,779 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:21:56,779 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:21:56,791 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:21:56,792 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:21:56,810 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:21:56,810 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:21:56,834 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:21:56,834 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:21:56,864 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:21:56,864 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:21:56,900 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:21:56,900 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:21:56,943 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:21:56,943 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:21:56,995 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:21:56,996 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:21:57,056 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:21:57,056 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:21:57,110 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:21:57,111 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1942609656] [2021-03-11 14:21:57,111 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:21:57,111 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:21:57,111 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [532194529] [2021-03-11 14:21:57,111 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:21:57,111 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:21:57,111 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:21:57,111 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:21:57,111 INFO L87 Difference]: Start difference. First operand 3119 states and 15553 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:57,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:21:57,406 INFO L93 Difference]: Finished difference Result 5980 states and 26708 transitions. [2021-03-11 14:21:57,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:21:57,408 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:21:57,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:21:57,420 INFO L225 Difference]: With dead ends: 5980 [2021-03-11 14:21:57,421 INFO L226 Difference]: Without dead ends: 5962 [2021-03-11 14:21:57,421 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 409.1ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:21:57,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5962 states. [2021-03-11 14:21:57,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5962 to 3126. [2021-03-11 14:21:57,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3126 states, 3125 states have (on average 4.98112) internal successors, (15566), 3125 states have internal predecessors, (15566), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:57,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3126 states to 3126 states and 15566 transitions. [2021-03-11 14:21:57,555 INFO L78 Accepts]: Start accepts. Automaton has 3126 states and 15566 transitions. Word has length 31 [2021-03-11 14:21:57,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:21:57,555 INFO L480 AbstractCegarLoop]: Abstraction has 3126 states and 15566 transitions. [2021-03-11 14:21:57,555 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:57,555 INFO L276 IsEmpty]: Start isEmpty. Operand 3126 states and 15566 transitions. [2021-03-11 14:21:57,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:21:57,560 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:21:57,560 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:21:57,560 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable433 [2021-03-11 14:21:57,560 INFO L428 AbstractCegarLoop]: === Iteration 435 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:21:57,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:21:57,560 INFO L82 PathProgramCache]: Analyzing trace with hash -1254225023, now seen corresponding path program 426 times [2021-03-11 14:21:57,560 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:21:57,560 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1483561048] [2021-03-11 14:21:57,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:21:57,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:21:57,577 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:21:57,578 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:21:57,579 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:21:57,580 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:21:57,589 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:21:57,590 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:21:57,608 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:21:57,609 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:21:57,635 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:21:57,635 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:21:57,671 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:21:57,672 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:21:57,715 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:21:57,715 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:21:57,764 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:21:57,765 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:21:57,824 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:21:57,825 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:21:57,899 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:21:57,900 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:21:57,985 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:21:57,986 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:21:58,057 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:21:58,057 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1483561048] [2021-03-11 14:21:58,057 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:21:58,057 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:21:58,058 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [173481436] [2021-03-11 14:21:58,058 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:21:58,058 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:21:58,058 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:21:58,058 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:21:58,058 INFO L87 Difference]: Start difference. First operand 3126 states and 15566 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:58,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:21:58,325 INFO L93 Difference]: Finished difference Result 5981 states and 26703 transitions. [2021-03-11 14:21:58,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:21:58,327 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:21:58,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:21:58,340 INFO L225 Difference]: With dead ends: 5981 [2021-03-11 14:21:58,340 INFO L226 Difference]: Without dead ends: 5950 [2021-03-11 14:21:58,340 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 548.1ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:21:58,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5950 states. [2021-03-11 14:21:58,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5950 to 3114. [2021-03-11 14:21:58,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3114 states, 3113 states have (on average 4.991647928043688) internal successors, (15539), 3113 states have internal predecessors, (15539), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:58,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3114 states to 3114 states and 15539 transitions. [2021-03-11 14:21:58,474 INFO L78 Accepts]: Start accepts. Automaton has 3114 states and 15539 transitions. Word has length 31 [2021-03-11 14:21:58,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:21:58,474 INFO L480 AbstractCegarLoop]: Abstraction has 3114 states and 15539 transitions. [2021-03-11 14:21:58,474 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:58,475 INFO L276 IsEmpty]: Start isEmpty. Operand 3114 states and 15539 transitions. [2021-03-11 14:21:58,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:21:58,479 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:21:58,479 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:21:58,479 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable434 [2021-03-11 14:21:58,479 INFO L428 AbstractCegarLoop]: === Iteration 436 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:21:58,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:21:58,480 INFO L82 PathProgramCache]: Analyzing trace with hash -740807995, now seen corresponding path program 427 times [2021-03-11 14:21:58,480 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:21:58,480 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [876714439] [2021-03-11 14:21:58,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:21:58,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:21:58,491 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:21:58,492 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:21:58,492 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:21:58,493 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:21:58,500 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:21:58,500 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:21:58,513 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:21:58,513 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:21:58,532 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:21:58,532 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:21:58,556 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:21:58,557 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:21:58,587 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:21:58,588 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:21:58,624 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:21:58,625 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:21:58,670 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:21:58,670 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:21:58,722 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:21:58,723 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:21:58,783 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:21:58,784 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:21:58,838 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:21:58,838 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [876714439] [2021-03-11 14:21:58,839 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:21:58,839 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:21:58,839 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1012459664] [2021-03-11 14:21:58,839 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:21:58,839 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:21:58,839 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:21:58,839 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:21:58,839 INFO L87 Difference]: Start difference. First operand 3114 states and 15539 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:59,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:21:59,106 INFO L93 Difference]: Finished difference Result 5994 states and 26750 transitions. [2021-03-11 14:21:59,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:21:59,107 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:21:59,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:21:59,120 INFO L225 Difference]: With dead ends: 5994 [2021-03-11 14:21:59,120 INFO L226 Difference]: Without dead ends: 5974 [2021-03-11 14:21:59,120 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 424.0ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:21:59,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5974 states. [2021-03-11 14:21:59,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5974 to 3128. [2021-03-11 14:21:59,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3128 states, 3127 states have (on average 4.9820914614646625) internal successors, (15579), 3127 states have internal predecessors, (15579), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:59,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3128 states to 3128 states and 15579 transitions. [2021-03-11 14:21:59,255 INFO L78 Accepts]: Start accepts. Automaton has 3128 states and 15579 transitions. Word has length 31 [2021-03-11 14:21:59,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:21:59,255 INFO L480 AbstractCegarLoop]: Abstraction has 3128 states and 15579 transitions. [2021-03-11 14:21:59,255 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:59,255 INFO L276 IsEmpty]: Start isEmpty. Operand 3128 states and 15579 transitions. [2021-03-11 14:21:59,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:21:59,260 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:21:59,260 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:21:59,260 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable435 [2021-03-11 14:21:59,260 INFO L428 AbstractCegarLoop]: === Iteration 437 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:21:59,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:21:59,260 INFO L82 PathProgramCache]: Analyzing trace with hash 1864216397, now seen corresponding path program 428 times [2021-03-11 14:21:59,260 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:21:59,260 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1010041380] [2021-03-11 14:21:59,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:21:59,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:21:59,272 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:21:59,272 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:21:59,273 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:21:59,273 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:21:59,280 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:21:59,281 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:21:59,293 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:21:59,293 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:21:59,311 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:21:59,312 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:21:59,336 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:21:59,337 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:21:59,366 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:21:59,367 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:21:59,402 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:21:59,403 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:21:59,447 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:21:59,448 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:21:59,500 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:21:59,500 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:21:59,562 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:21:59,563 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:21:59,619 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:21:59,619 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1010041380] [2021-03-11 14:21:59,619 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:21:59,619 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:21:59,619 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722153167] [2021-03-11 14:21:59,619 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:21:59,619 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:21:59,619 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:21:59,619 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:21:59,619 INFO L87 Difference]: Start difference. First operand 3128 states and 15579 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:21:59,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:21:59,958 INFO L93 Difference]: Finished difference Result 5992 states and 26739 transitions. [2021-03-11 14:21:59,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:21:59,959 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:21:59,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:21:59,972 INFO L225 Difference]: With dead ends: 5992 [2021-03-11 14:21:59,972 INFO L226 Difference]: Without dead ends: 5967 [2021-03-11 14:21:59,972 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 416.9ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:22:00,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5967 states. [2021-03-11 14:22:00,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5967 to 3121. [2021-03-11 14:22:00,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3121 states, 3120 states have (on average 4.986858974358975) internal successors, (15559), 3120 states have internal predecessors, (15559), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:22:00,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3121 states to 3121 states and 15559 transitions. [2021-03-11 14:22:00,109 INFO L78 Accepts]: Start accepts. Automaton has 3121 states and 15559 transitions. Word has length 31 [2021-03-11 14:22:00,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:22:00,109 INFO L480 AbstractCegarLoop]: Abstraction has 3121 states and 15559 transitions. [2021-03-11 14:22:00,109 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:22:00,109 INFO L276 IsEmpty]: Start isEmpty. Operand 3121 states and 15559 transitions. [2021-03-11 14:22:00,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:22:00,113 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:22:00,113 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:22:00,114 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable436 [2021-03-11 14:22:00,114 INFO L428 AbstractCegarLoop]: === Iteration 438 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:22:00,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:22:00,114 INFO L82 PathProgramCache]: Analyzing trace with hash -1589430467, now seen corresponding path program 429 times [2021-03-11 14:22:00,114 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:22:00,114 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [605979953] [2021-03-11 14:22:00,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:22:00,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:22:00,126 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:22:00,132 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:22:00,133 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:22:00,133 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:22:00,142 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:22:00,143 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:22:00,156 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:22:00,156 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:22:00,175 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:22:00,176 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:22:00,202 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:22:00,202 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:22:00,233 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:22:00,234 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:22:00,270 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:22:00,271 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:22:00,316 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:22:00,317 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:22:00,371 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:22:00,371 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:22:00,435 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:22:00,436 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:22:00,493 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:22:00,493 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [605979953] [2021-03-11 14:22:00,493 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:22:00,493 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:22:00,493 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1754671330] [2021-03-11 14:22:00,493 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:22:00,493 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:22:00,493 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:22:00,493 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:22:00,493 INFO L87 Difference]: Start difference. First operand 3121 states and 15559 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:22:00,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:22:00,772 INFO L93 Difference]: Finished difference Result 5996 states and 26748 transitions. [2021-03-11 14:22:00,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:22:00,773 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:22:00,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:22:00,787 INFO L225 Difference]: With dead ends: 5996 [2021-03-11 14:22:00,787 INFO L226 Difference]: Without dead ends: 5976 [2021-03-11 14:22:00,787 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 442.8ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:22:00,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5976 states. [2021-03-11 14:22:00,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5976 to 3129. [2021-03-11 14:22:00,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3129 states, 3128 states have (on average 4.978900255754476) internal successors, (15574), 3128 states have internal predecessors, (15574), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:22:00,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3129 states to 3129 states and 15574 transitions. [2021-03-11 14:22:00,923 INFO L78 Accepts]: Start accepts. Automaton has 3129 states and 15574 transitions. Word has length 31 [2021-03-11 14:22:00,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:22:00,923 INFO L480 AbstractCegarLoop]: Abstraction has 3129 states and 15574 transitions. [2021-03-11 14:22:00,923 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:22:00,924 INFO L276 IsEmpty]: Start isEmpty. Operand 3129 states and 15574 transitions. [2021-03-11 14:22:00,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:22:00,928 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:22:00,928 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:22:00,928 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable437 [2021-03-11 14:22:00,928 INFO L428 AbstractCegarLoop]: === Iteration 439 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:22:00,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:22:00,929 INFO L82 PathProgramCache]: Analyzing trace with hash -674348979, now seen corresponding path program 430 times [2021-03-11 14:22:00,929 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:22:00,929 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [62160611] [2021-03-11 14:22:00,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:22:00,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:22:00,940 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:22:00,941 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:22:00,942 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:22:00,942 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:22:00,950 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:22:00,950 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:22:00,963 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:22:00,964 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:22:00,982 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:22:00,983 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:22:01,009 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:22:01,009 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:22:01,040 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:22:01,041 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:22:01,078 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:22:01,079 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:22:01,127 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:22:01,127 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:22:01,183 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:22:01,184 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:22:01,249 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:22:01,250 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:22:01,307 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:22:01,307 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [62160611] [2021-03-11 14:22:01,307 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:22:01,307 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:22:01,307 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1039553468] [2021-03-11 14:22:01,308 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:22:01,308 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:22:01,308 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:22:01,308 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:22:01,308 INFO L87 Difference]: Start difference. First operand 3129 states and 15574 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:22:01,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:22:01,666 INFO L93 Difference]: Finished difference Result 5995 states and 26738 transitions. [2021-03-11 14:22:01,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:22:01,667 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:22:01,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:22:01,680 INFO L225 Difference]: With dead ends: 5995 [2021-03-11 14:22:01,681 INFO L226 Difference]: Without dead ends: 5968 [2021-03-11 14:22:01,681 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 445.7ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:22:01,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5968 states. [2021-03-11 14:22:01,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5968 to 3121. [2021-03-11 14:22:01,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3121 states, 3120 states have (on average 4.984615384615385) internal successors, (15552), 3120 states have internal predecessors, (15552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:22:01,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3121 states to 3121 states and 15552 transitions. [2021-03-11 14:22:01,822 INFO L78 Accepts]: Start accepts. Automaton has 3121 states and 15552 transitions. Word has length 31 [2021-03-11 14:22:01,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:22:01,822 INFO L480 AbstractCegarLoop]: Abstraction has 3121 states and 15552 transitions. [2021-03-11 14:22:01,822 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:22:01,822 INFO L276 IsEmpty]: Start isEmpty. Operand 3121 states and 15552 transitions. [2021-03-11 14:22:01,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:22:01,827 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:22:01,827 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:22:01,827 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable438 [2021-03-11 14:22:01,827 INFO L428 AbstractCegarLoop]: === Iteration 440 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:22:01,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:22:01,827 INFO L82 PathProgramCache]: Analyzing trace with hash 166971453, now seen corresponding path program 431 times [2021-03-11 14:22:01,827 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:22:01,827 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1662876343] [2021-03-11 14:22:01,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:22:01,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:22:01,839 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:22:01,840 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:22:01,841 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:22:01,841 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:22:01,848 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:22:01,849 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:22:01,862 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:22:01,862 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:22:01,881 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:22:01,881 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:22:01,907 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:22:01,907 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:22:01,938 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:22:01,938 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:22:01,975 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:22:01,976 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:22:02,024 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:22:02,024 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:22:02,081 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:22:02,081 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:22:02,149 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:22:02,150 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:22:02,214 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:22:02,214 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1662876343] [2021-03-11 14:22:02,214 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:22:02,214 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:22:02,214 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1166809141] [2021-03-11 14:22:02,214 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:22:02,214 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:22:02,214 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:22:02,214 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:22:02,214 INFO L87 Difference]: Start difference. First operand 3121 states and 15552 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:22:02,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:22:02,583 INFO L93 Difference]: Finished difference Result 5991 states and 26730 transitions. [2021-03-11 14:22:02,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:22:02,584 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:22:02,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:22:02,598 INFO L225 Difference]: With dead ends: 5991 [2021-03-11 14:22:02,598 INFO L226 Difference]: Without dead ends: 5973 [2021-03-11 14:22:02,598 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 455.5ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:22:02,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5973 states. [2021-03-11 14:22:02,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5973 to 3128. [2021-03-11 14:22:02,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3128 states, 3127 states have (on average 4.977614326830828) internal successors, (15565), 3127 states have internal predecessors, (15565), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:22:02,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3128 states to 3128 states and 15565 transitions. [2021-03-11 14:22:02,742 INFO L78 Accepts]: Start accepts. Automaton has 3128 states and 15565 transitions. Word has length 31 [2021-03-11 14:22:02,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:22:02,742 INFO L480 AbstractCegarLoop]: Abstraction has 3128 states and 15565 transitions. [2021-03-11 14:22:02,742 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:22:02,742 INFO L276 IsEmpty]: Start isEmpty. Operand 3128 states and 15565 transitions. [2021-03-11 14:22:02,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:22:02,747 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:22:02,747 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:22:02,747 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable439 [2021-03-11 14:22:02,747 INFO L428 AbstractCegarLoop]: === Iteration 441 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:22:02,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:22:02,748 INFO L82 PathProgramCache]: Analyzing trace with hash -1522971451, now seen corresponding path program 432 times [2021-03-11 14:22:02,748 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:22:02,748 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1505321765] [2021-03-11 14:22:02,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:22:02,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:22:02,759 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:22:02,760 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:22:02,761 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:22:02,761 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:22:02,770 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:22:02,770 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:22:02,784 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:22:02,785 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:22:02,806 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:22:02,807 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:22:02,835 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:22:02,836 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:22:02,870 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:22:02,871 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:22:02,913 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:22:02,913 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:22:02,965 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:22:02,966 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:22:03,025 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:22:03,026 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:22:03,093 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:22:03,094 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:22:03,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:22:03,155 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1505321765] [2021-03-11 14:22:03,155 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:22:03,155 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:22:03,155 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1980921671] [2021-03-11 14:22:03,155 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:22:03,155 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:22:03,156 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:22:03,156 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:22:03,156 INFO L87 Difference]: Start difference. First operand 3128 states and 15565 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:22:03,479 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 40 [2021-03-11 14:22:03,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:22:03,510 INFO L93 Difference]: Finished difference Result 5992 states and 26725 transitions. [2021-03-11 14:22:03,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:22:03,511 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:22:03,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:22:03,525 INFO L225 Difference]: With dead ends: 5992 [2021-03-11 14:22:03,525 INFO L226 Difference]: Without dead ends: 5954 [2021-03-11 14:22:03,525 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 479.8ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:22:03,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5954 states. [2021-03-11 14:22:03,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5954 to 3109. [2021-03-11 14:22:03,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3109 states, 3108 states have (on average 4.995173745173745) internal successors, (15525), 3108 states have internal predecessors, (15525), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:22:03,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3109 states to 3109 states and 15525 transitions. [2021-03-11 14:22:03,667 INFO L78 Accepts]: Start accepts. Automaton has 3109 states and 15525 transitions. Word has length 31 [2021-03-11 14:22:03,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:22:03,667 INFO L480 AbstractCegarLoop]: Abstraction has 3109 states and 15525 transitions. [2021-03-11 14:22:03,667 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:22:03,667 INFO L276 IsEmpty]: Start isEmpty. Operand 3109 states and 15525 transitions. [2021-03-11 14:22:03,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:22:03,672 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:22:03,672 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:22:03,672 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable440 [2021-03-11 14:22:03,672 INFO L428 AbstractCegarLoop]: === Iteration 442 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:22:03,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:22:03,673 INFO L82 PathProgramCache]: Analyzing trace with hash -2008400331, now seen corresponding path program 433 times [2021-03-11 14:22:03,673 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:22:03,673 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [313749357] [2021-03-11 14:22:03,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:22:03,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:22:03,684 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:22:03,685 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:22:03,686 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:22:03,686 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:22:03,694 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:22:03,695 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:22:03,709 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:22:03,710 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:22:03,730 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:22:03,731 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:22:03,758 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:22:03,759 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:22:03,794 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:22:03,794 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:22:03,836 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:22:03,837 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:22:03,886 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:22:03,887 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:22:03,944 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:22:03,944 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:22:04,013 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:22:04,014 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:22:04,070 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:22:04,070 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [313749357] [2021-03-11 14:22:04,071 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:22:04,071 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:22:04,071 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [968892893] [2021-03-11 14:22:04,071 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:22:04,071 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:22:04,071 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:22:04,071 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:22:04,071 INFO L87 Difference]: Start difference. First operand 3109 states and 15525 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:22:04,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:22:04,373 INFO L93 Difference]: Finished difference Result 5962 states and 26679 transitions. [2021-03-11 14:22:04,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:22:04,374 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:22:04,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:22:04,387 INFO L225 Difference]: With dead ends: 5962 [2021-03-11 14:22:04,387 INFO L226 Difference]: Without dead ends: 5946 [2021-03-11 14:22:04,387 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 455.9ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:22:04,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5946 states. [2021-03-11 14:22:04,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5946 to 3124. [2021-03-11 14:22:04,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3124 states, 3123 states have (on average 4.987832212616074) internal successors, (15577), 3123 states have internal predecessors, (15577), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:22:04,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3124 states to 3124 states and 15577 transitions. [2021-03-11 14:22:04,521 INFO L78 Accepts]: Start accepts. Automaton has 3124 states and 15577 transitions. Word has length 31 [2021-03-11 14:22:04,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:22:04,522 INFO L480 AbstractCegarLoop]: Abstraction has 3124 states and 15577 transitions. [2021-03-11 14:22:04,522 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:22:04,522 INFO L276 IsEmpty]: Start isEmpty. Operand 3124 states and 15577 transitions. [2021-03-11 14:22:04,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:22:04,526 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:22:04,526 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:22:04,526 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable441 [2021-03-11 14:22:04,526 INFO L428 AbstractCegarLoop]: === Iteration 443 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:22:04,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:22:04,527 INFO L82 PathProgramCache]: Analyzing trace with hash 596624061, now seen corresponding path program 434 times [2021-03-11 14:22:04,527 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:22:04,527 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [628297174] [2021-03-11 14:22:04,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:22:04,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:22:04,538 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:22:04,539 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:22:04,539 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:22:04,540 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:22:04,547 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:22:04,548 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:22:04,560 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:22:04,561 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:22:04,581 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:22:04,581 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:22:04,608 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:22:04,608 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:22:04,640 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:22:04,641 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:22:04,679 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:22:04,679 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:22:04,727 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:22:04,727 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:22:04,786 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:22:04,786 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:22:04,848 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:22:04,849 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:22:04,905 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:22:04,905 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [628297174] [2021-03-11 14:22:04,905 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:22:04,905 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:22:04,905 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1257983525] [2021-03-11 14:22:04,905 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:22:04,905 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:22:04,906 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:22:04,906 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:22:04,906 INFO L87 Difference]: Start difference. First operand 3124 states and 15577 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:22:05,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:22:05,211 INFO L93 Difference]: Finished difference Result 5963 states and 26676 transitions. [2021-03-11 14:22:05,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:22:05,213 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:22:05,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:22:05,225 INFO L225 Difference]: With dead ends: 5963 [2021-03-11 14:22:05,226 INFO L226 Difference]: Without dead ends: 5941 [2021-03-11 14:22:05,226 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 438.5ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:22:05,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5941 states. [2021-03-11 14:22:05,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5941 to 3119. [2021-03-11 14:22:05,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3119 states, 3118 states have (on average 4.9913406029506096) internal successors, (15563), 3118 states have internal predecessors, (15563), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:22:05,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3119 states to 3119 states and 15563 transitions. [2021-03-11 14:22:05,364 INFO L78 Accepts]: Start accepts. Automaton has 3119 states and 15563 transitions. Word has length 31 [2021-03-11 14:22:05,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:22:05,364 INFO L480 AbstractCegarLoop]: Abstraction has 3119 states and 15563 transitions. [2021-03-11 14:22:05,364 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:22:05,364 INFO L276 IsEmpty]: Start isEmpty. Operand 3119 states and 15563 transitions. [2021-03-11 14:22:05,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:22:05,369 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:22:05,369 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:22:05,369 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable442 [2021-03-11 14:22:05,369 INFO L428 AbstractCegarLoop]: === Iteration 444 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:22:05,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:22:05,369 INFO L82 PathProgramCache]: Analyzing trace with hash 1862255729, now seen corresponding path program 435 times [2021-03-11 14:22:05,369 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:22:05,369 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [985811884] [2021-03-11 14:22:05,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:22:05,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:22:05,382 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:22:05,382 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:22:05,383 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:22:05,383 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:22:05,391 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:22:05,392 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:22:05,404 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:22:05,405 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:22:05,424 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:22:05,425 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:22:05,450 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:22:05,451 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:22:05,482 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:22:05,482 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:22:05,521 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:22:05,522 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:22:05,567 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:22:05,568 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:22:05,621 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:22:05,622 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:22:05,684 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:22:05,685 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:22:05,741 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:22:05,742 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [985811884] [2021-03-11 14:22:05,742 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:22:05,742 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:22:05,742 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1158091665] [2021-03-11 14:22:05,742 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:22:05,742 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:22:05,742 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:22:05,742 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:22:05,742 INFO L87 Difference]: Start difference. First operand 3119 states and 15563 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:22:06,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:22:06,008 INFO L93 Difference]: Finished difference Result 5963 states and 26676 transitions. [2021-03-11 14:22:06,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:22:06,010 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:22:06,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:22:06,023 INFO L225 Difference]: With dead ends: 5963 [2021-03-11 14:22:06,023 INFO L226 Difference]: Without dead ends: 5947 [2021-03-11 14:22:06,023 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 432.5ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:22:06,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5947 states. [2021-03-11 14:22:06,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5947 to 3124. [2021-03-11 14:22:06,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3124 states, 3123 states have (on average 4.9862311879602945) internal successors, (15572), 3123 states have internal predecessors, (15572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:22:06,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3124 states to 3124 states and 15572 transitions. [2021-03-11 14:22:06,159 INFO L78 Accepts]: Start accepts. Automaton has 3124 states and 15572 transitions. Word has length 31 [2021-03-11 14:22:06,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:22:06,159 INFO L480 AbstractCegarLoop]: Abstraction has 3124 states and 15572 transitions. [2021-03-11 14:22:06,159 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:22:06,159 INFO L276 IsEmpty]: Start isEmpty. Operand 3124 states and 15572 transitions. [2021-03-11 14:22:06,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:22:06,164 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:22:06,164 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:22:06,164 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable443 [2021-03-11 14:22:06,164 INFO L428 AbstractCegarLoop]: === Iteration 445 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:22:06,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:22:06,164 INFO L82 PathProgramCache]: Analyzing trace with hash -672658627, now seen corresponding path program 436 times [2021-03-11 14:22:06,164 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:22:06,164 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [241402703] [2021-03-11 14:22:06,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:22:06,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:22:06,177 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:22:06,177 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:22:06,178 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:22:06,179 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:22:06,186 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:22:06,187 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:22:06,199 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:22:06,200 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:22:06,219 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:22:06,219 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:22:06,244 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:22:06,245 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:22:06,276 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:22:06,277 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:22:06,315 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:22:06,315 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:22:06,364 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:22:06,364 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:22:06,417 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:22:06,418 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:22:06,481 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:22:06,482 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:22:06,539 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:22:06,539 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [241402703] [2021-03-11 14:22:06,539 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:22:06,539 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:22:06,539 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1525382730] [2021-03-11 14:22:06,539 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:22:06,539 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:22:06,539 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:22:06,539 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:22:06,539 INFO L87 Difference]: Start difference. First operand 3124 states and 15572 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:22:06,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:22:06,804 INFO L93 Difference]: Finished difference Result 5965 states and 26675 transitions. [2021-03-11 14:22:06,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:22:06,805 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:22:06,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:22:06,818 INFO L225 Difference]: With dead ends: 5965 [2021-03-11 14:22:06,818 INFO L226 Difference]: Without dead ends: 5942 [2021-03-11 14:22:06,818 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 433.9ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:22:06,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5942 states. [2021-03-11 14:22:06,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5942 to 3119. [2021-03-11 14:22:06,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3119 states, 3118 states have (on average 4.989737010904426) internal successors, (15558), 3118 states have internal predecessors, (15558), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:22:06,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3119 states to 3119 states and 15558 transitions. [2021-03-11 14:22:06,952 INFO L78 Accepts]: Start accepts. Automaton has 3119 states and 15558 transitions. Word has length 31 [2021-03-11 14:22:06,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:22:06,953 INFO L480 AbstractCegarLoop]: Abstraction has 3119 states and 15558 transitions. [2021-03-11 14:22:06,953 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:22:06,953 INFO L276 IsEmpty]: Start isEmpty. Operand 3119 states and 15558 transitions. [2021-03-11 14:22:06,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:22:06,957 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:22:06,957 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:22:06,957 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable444 [2021-03-11 14:22:06,957 INFO L428 AbstractCegarLoop]: === Iteration 446 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:22:06,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:22:06,958 INFO L82 PathProgramCache]: Analyzing trace with hash -676309647, now seen corresponding path program 437 times [2021-03-11 14:22:06,958 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:22:06,958 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [325052633] [2021-03-11 14:22:06,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:22:06,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:22:06,969 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:22:06,970 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:22:06,971 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:22:06,971 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:22:06,979 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:22:06,979 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:22:06,992 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:22:06,993 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:22:07,012 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:22:07,013 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:22:07,038 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:22:07,038 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:22:07,070 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:22:07,070 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:22:07,108 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:22:07,109 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:22:07,154 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:22:07,155 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:22:07,209 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:22:07,210 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:22:07,271 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:22:07,272 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:22:07,329 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:22:07,329 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [325052633] [2021-03-11 14:22:07,329 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:22:07,329 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:22:07,330 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1870938555] [2021-03-11 14:22:07,330 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:22:07,330 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:22:07,330 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:22:07,330 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:22:07,330 INFO L87 Difference]: Start difference. First operand 3119 states and 15558 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:22:07,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:22:07,734 INFO L93 Difference]: Finished difference Result 5966 states and 26678 transitions. [2021-03-11 14:22:07,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:22:07,735 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:22:07,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:22:07,749 INFO L225 Difference]: With dead ends: 5966 [2021-03-11 14:22:07,750 INFO L226 Difference]: Without dead ends: 5949 [2021-03-11 14:22:07,750 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 437.3ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:22:07,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5949 states. [2021-03-11 14:22:07,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5949 to 3125. [2021-03-11 14:22:07,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3125 states, 3124 states have (on average 4.983674775928297) internal successors, (15569), 3124 states have internal predecessors, (15569), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:22:07,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3125 states to 3125 states and 15569 transitions. [2021-03-11 14:22:07,890 INFO L78 Accepts]: Start accepts. Automaton has 3125 states and 15569 transitions. Word has length 31 [2021-03-11 14:22:07,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:22:07,890 INFO L480 AbstractCegarLoop]: Abstraction has 3125 states and 15569 transitions. [2021-03-11 14:22:07,890 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:22:07,890 INFO L276 IsEmpty]: Start isEmpty. Operand 3125 states and 15569 transitions. [2021-03-11 14:22:07,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:22:07,895 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:22:07,895 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:22:07,895 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable445 [2021-03-11 14:22:07,895 INFO L428 AbstractCegarLoop]: === Iteration 447 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:22:07,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:22:07,895 INFO L82 PathProgramCache]: Analyzing trace with hash -1521281099, now seen corresponding path program 438 times [2021-03-11 14:22:07,895 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:22:07,895 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1920127247] [2021-03-11 14:22:07,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:22:07,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:22:07,907 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:22:07,907 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:22:07,908 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:22:07,909 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:22:07,917 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:22:07,917 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:22:07,931 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:22:07,931 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:22:07,950 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:22:07,951 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:22:07,977 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:22:07,977 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:22:08,011 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:22:08,012 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:22:08,053 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:22:08,054 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:22:08,102 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:22:08,102 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:22:08,161 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:22:08,162 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:22:08,226 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:22:08,227 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:22:08,283 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:22:08,284 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1920127247] [2021-03-11 14:22:08,284 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:22:08,284 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:22:08,284 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1946707431] [2021-03-11 14:22:08,284 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:22:08,284 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:22:08,284 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:22:08,284 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:22:08,284 INFO L87 Difference]: Start difference. First operand 3125 states and 15569 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:22:08,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:22:08,577 INFO L93 Difference]: Finished difference Result 5967 states and 26674 transitions. [2021-03-11 14:22:08,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:22:08,579 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:22:08,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:22:08,592 INFO L225 Difference]: With dead ends: 5967 [2021-03-11 14:22:08,592 INFO L226 Difference]: Without dead ends: 5938 [2021-03-11 14:22:08,592 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 450.4ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:22:08,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5938 states. [2021-03-11 14:22:08,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5938 to 3114. [2021-03-11 14:22:08,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3114 states, 3113 states have (on average 4.993254095727594) internal successors, (15544), 3113 states have internal predecessors, (15544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:22:08,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3114 states to 3114 states and 15544 transitions. [2021-03-11 14:22:08,727 INFO L78 Accepts]: Start accepts. Automaton has 3114 states and 15544 transitions. Word has length 31 [2021-03-11 14:22:08,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:22:08,727 INFO L480 AbstractCegarLoop]: Abstraction has 3114 states and 15544 transitions. [2021-03-11 14:22:08,727 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:22:08,727 INFO L276 IsEmpty]: Start isEmpty. Operand 3114 states and 15544 transitions. [2021-03-11 14:22:08,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:22:08,731 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:22:08,732 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:22:08,732 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable446 [2021-03-11 14:22:08,732 INFO L428 AbstractCegarLoop]: === Iteration 448 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:22:08,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:22:08,732 INFO L82 PathProgramCache]: Analyzing trace with hash 1749074109, now seen corresponding path program 439 times [2021-03-11 14:22:08,732 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:22:08,732 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1751169126] [2021-03-11 14:22:08,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:22:08,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:22:08,743 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:22:08,744 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:22:08,745 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:22:08,745 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:22:08,753 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:22:08,753 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:22:08,766 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:22:08,767 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:22:08,786 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:22:08,787 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:22:08,812 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:22:08,813 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:22:08,845 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:22:08,846 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:22:08,884 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:22:08,885 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:22:08,930 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:22:08,931 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:22:08,986 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:22:08,986 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:22:09,051 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:22:09,052 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:22:09,110 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:22:09,110 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1751169126] [2021-03-11 14:22:09,110 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:22:09,110 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:22:09,110 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [751467241] [2021-03-11 14:22:09,110 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:22:09,110 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:22:09,110 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:22:09,110 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:22:09,110 INFO L87 Difference]: Start difference. First operand 3114 states and 15544 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:22:09,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:22:09,419 INFO L93 Difference]: Finished difference Result 5963 states and 26676 transitions. [2021-03-11 14:22:09,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:22:09,421 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:22:09,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:22:09,434 INFO L225 Difference]: With dead ends: 5963 [2021-03-11 14:22:09,434 INFO L226 Difference]: Without dead ends: 5947 [2021-03-11 14:22:09,434 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 440.1ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:22:09,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5947 states. [2021-03-11 14:22:09,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5947 to 3124. [2021-03-11 14:22:09,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3124 states, 3123 states have (on average 4.9862311879602945) internal successors, (15572), 3123 states have internal predecessors, (15572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:22:09,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3124 states to 3124 states and 15572 transitions. [2021-03-11 14:22:09,574 INFO L78 Accepts]: Start accepts. Automaton has 3124 states and 15572 transitions. Word has length 31 [2021-03-11 14:22:09,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:22:09,574 INFO L480 AbstractCegarLoop]: Abstraction has 3124 states and 15572 transitions. [2021-03-11 14:22:09,574 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:22:09,574 INFO L276 IsEmpty]: Start isEmpty. Operand 3124 states and 15572 transitions. [2021-03-11 14:22:09,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:22:09,580 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:22:09,580 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:22:09,580 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable447 [2021-03-11 14:22:09,580 INFO L428 AbstractCegarLoop]: === Iteration 449 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:22:09,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:22:09,581 INFO L82 PathProgramCache]: Analyzing trace with hash 59131205, now seen corresponding path program 440 times [2021-03-11 14:22:09,581 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:22:09,581 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [714627718] [2021-03-11 14:22:09,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:22:09,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:22:09,597 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:22:09,598 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:22:09,598 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:22:09,599 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:22:09,606 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:22:09,607 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:22:09,620 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:22:09,621 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:22:09,640 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:22:09,641 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:22:09,667 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:22:09,668 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:22:09,700 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:22:09,701 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:22:09,741 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:22:09,742 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:22:09,788 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:22:09,788 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:22:09,844 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:22:09,844 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:22:09,909 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:22:09,910 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:22:09,969 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:22:09,969 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [714627718] [2021-03-11 14:22:09,969 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:22:09,969 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:22:09,969 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [80771690] [2021-03-11 14:22:09,969 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:22:09,969 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:22:09,969 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:22:09,970 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:22:09,970 INFO L87 Difference]: Start difference. First operand 3124 states and 15572 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:22:10,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:22:10,310 INFO L93 Difference]: Finished difference Result 5964 states and 26673 transitions. [2021-03-11 14:22:10,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:22:10,311 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:22:10,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:22:10,325 INFO L225 Difference]: With dead ends: 5964 [2021-03-11 14:22:10,325 INFO L226 Difference]: Without dead ends: 5942 [2021-03-11 14:22:10,325 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 445.2ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:22:10,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5942 states. [2021-03-11 14:22:10,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5942 to 3119. [2021-03-11 14:22:10,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3119 states, 3118 states have (on average 4.989737010904426) internal successors, (15558), 3118 states have internal predecessors, (15558), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:22:10,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3119 states to 3119 states and 15558 transitions. [2021-03-11 14:22:10,461 INFO L78 Accepts]: Start accepts. Automaton has 3119 states and 15558 transitions. Word has length 31 [2021-03-11 14:22:10,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:22:10,461 INFO L480 AbstractCegarLoop]: Abstraction has 3119 states and 15558 transitions. [2021-03-11 14:22:10,461 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:22:10,461 INFO L276 IsEmpty]: Start isEmpty. Operand 3119 states and 15558 transitions. [2021-03-11 14:22:10,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:22:10,466 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:22:10,466 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:22:10,466 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable448 [2021-03-11 14:22:10,466 INFO L428 AbstractCegarLoop]: === Iteration 450 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:22:10,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:22:10,467 INFO L82 PathProgramCache]: Analyzing trace with hash 476140401, now seen corresponding path program 441 times [2021-03-11 14:22:10,467 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:22:10,467 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1125755595] [2021-03-11 14:22:10,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:22:10,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:22:10,478 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:22:10,479 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:22:10,480 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:22:10,480 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:22:10,488 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:22:10,489 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:22:10,502 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:22:10,502 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:22:10,522 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:22:10,523 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:22:10,549 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:22:10,550 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:22:10,582 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:22:10,583 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:22:10,623 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:22:10,624 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:22:10,669 INFO L142 QuantifierPusher]: treesize reduction 45, result has 59.1 percent of original size [2021-03-11 14:22:10,670 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:22:10,761 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:22:10,762 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:22:10,827 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:22:10,828 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:22:10,886 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:22:10,887 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1125755595] [2021-03-11 14:22:10,887 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:22:10,887 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:22:10,887 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106300640] [2021-03-11 14:22:10,887 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:22:10,887 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:22:10,887 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:22:10,887 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:22:10,887 INFO L87 Difference]: Start difference. First operand 3119 states and 15558 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:22:11,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:22:11,301 INFO L93 Difference]: Finished difference Result 5965 states and 26675 transitions. [2021-03-11 14:22:11,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:22:11,303 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:22:11,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:22:11,316 INFO L225 Difference]: With dead ends: 5965 [2021-03-11 14:22:11,316 INFO L226 Difference]: Without dead ends: 5949 [2021-03-11 14:22:11,316 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 483.8ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:22:11,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5949 states. [2021-03-11 14:22:11,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5949 to 3124. [2021-03-11 14:22:11,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3124 states, 3123 states have (on average 4.984630163304515) internal successors, (15567), 3123 states have internal predecessors, (15567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:22:11,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3124 states to 3124 states and 15567 transitions. [2021-03-11 14:22:11,453 INFO L78 Accepts]: Start accepts. Automaton has 3124 states and 15567 transitions. Word has length 31 [2021-03-11 14:22:11,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:22:11,453 INFO L480 AbstractCegarLoop]: Abstraction has 3124 states and 15567 transitions. [2021-03-11 14:22:11,453 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:22:11,453 INFO L276 IsEmpty]: Start isEmpty. Operand 3124 states and 15567 transitions. [2021-03-11 14:22:11,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:22:11,458 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:22:11,458 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:22:11,458 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable449 [2021-03-11 14:22:11,458 INFO L428 AbstractCegarLoop]: === Iteration 451 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:22:11,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:22:11,458 INFO L82 PathProgramCache]: Analyzing trace with hash 546250437, now seen corresponding path program 442 times [2021-03-11 14:22:11,458 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:22:11,458 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [50785602] [2021-03-11 14:22:11,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:22:11,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:22:11,470 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:22:11,471 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:22:11,471 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:22:11,472 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:22:11,479 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:22:11,480 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:22:11,493 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:22:11,494 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:22:11,514 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:22:11,515 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:22:11,542 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:22:11,543 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:22:11,575 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:22:11,576 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:22:11,616 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:22:11,616 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:22:11,663 INFO L142 QuantifierPusher]: treesize reduction 45, result has 59.1 percent of original size [2021-03-11 14:22:11,664 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:22:11,754 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:22:11,755 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:22:11,821 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:22:11,822 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:22:11,882 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:22:11,882 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [50785602] [2021-03-11 14:22:11,882 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:22:11,882 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:22:11,882 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1180889593] [2021-03-11 14:22:11,882 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:22:11,882 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:22:11,882 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:22:11,882 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:22:11,882 INFO L87 Difference]: Start difference. First operand 3124 states and 15567 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:22:12,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:22:12,225 INFO L93 Difference]: Finished difference Result 5968 states and 26676 transitions. [2021-03-11 14:22:12,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:22:12,226 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:22:12,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:22:12,239 INFO L225 Difference]: With dead ends: 5968 [2021-03-11 14:22:12,239 INFO L226 Difference]: Without dead ends: 5944 [2021-03-11 14:22:12,240 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 492.1ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:22:12,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5944 states. [2021-03-11 14:22:12,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5944 to 3119. [2021-03-11 14:22:12,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3119 states, 3118 states have (on average 4.988133418858243) internal successors, (15553), 3118 states have internal predecessors, (15553), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:22:12,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3119 states to 3119 states and 15553 transitions. [2021-03-11 14:22:12,375 INFO L78 Accepts]: Start accepts. Automaton has 3119 states and 15553 transitions. Word has length 31 [2021-03-11 14:22:12,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:22:12,375 INFO L480 AbstractCegarLoop]: Abstraction has 3119 states and 15553 transitions. [2021-03-11 14:22:12,375 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:22:12,375 INFO L276 IsEmpty]: Start isEmpty. Operand 3119 states and 15553 transitions. [2021-03-11 14:22:12,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:22:12,380 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:22:12,380 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:22:12,380 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable450 [2021-03-11 14:22:12,380 INFO L428 AbstractCegarLoop]: === Iteration 452 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:22:12,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:22:12,380 INFO L82 PathProgramCache]: Analyzing trace with hash -2062424975, now seen corresponding path program 443 times [2021-03-11 14:22:12,380 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:22:12,380 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [379481455] [2021-03-11 14:22:12,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:22:12,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:22:12,392 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:22:12,392 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:22:12,393 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:22:12,393 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:22:12,401 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:22:12,402 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:22:12,415 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:22:12,416 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:22:12,436 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:22:12,437 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:22:12,463 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:22:12,464 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:22:12,497 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:22:12,498 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:22:12,537 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:22:12,538 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:22:12,584 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:22:12,585 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:22:12,640 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:22:12,641 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:22:12,706 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:22:12,707 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:22:12,767 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:22:12,767 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [379481455] [2021-03-11 14:22:12,767 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:22:12,767 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:22:12,767 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [342513576] [2021-03-11 14:22:12,767 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:22:12,767 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:22:12,768 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:22:12,768 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:22:12,768 INFO L87 Difference]: Start difference. First operand 3119 states and 15553 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:22:13,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:22:13,021 INFO L93 Difference]: Finished difference Result 5968 states and 26677 transitions. [2021-03-11 14:22:13,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:22:13,022 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:22:13,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:22:13,035 INFO L225 Difference]: With dead ends: 5968 [2021-03-11 14:22:13,035 INFO L226 Difference]: Without dead ends: 5951 [2021-03-11 14:22:13,035 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 449.4ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:22:13,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5951 states. [2021-03-11 14:22:13,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5951 to 3125. [2021-03-11 14:22:13,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3125 states, 3124 states have (on average 4.982074263764405) internal successors, (15564), 3124 states have internal predecessors, (15564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:22:13,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3125 states to 3125 states and 15564 transitions. [2021-03-11 14:22:13,170 INFO L78 Accepts]: Start accepts. Automaton has 3125 states and 15564 transitions. Word has length 31 [2021-03-11 14:22:13,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:22:13,170 INFO L480 AbstractCegarLoop]: Abstraction has 3125 states and 15564 transitions. [2021-03-11 14:22:13,170 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:22:13,170 INFO L276 IsEmpty]: Start isEmpty. Operand 3125 states and 15564 transitions. [2021-03-11 14:22:13,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:22:13,175 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:22:13,175 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:22:13,175 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable451 [2021-03-11 14:22:13,175 INFO L428 AbstractCegarLoop]: === Iteration 453 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:22:13,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:22:13,175 INFO L82 PathProgramCache]: Analyzing trace with hash -302372035, now seen corresponding path program 444 times [2021-03-11 14:22:13,175 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:22:13,176 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [912072843] [2021-03-11 14:22:13,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:22:13,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:22:13,187 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:22:13,188 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:22:13,188 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:22:13,189 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:22:13,197 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:22:13,197 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:22:13,211 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:22:13,211 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:22:13,231 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:22:13,232 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:22:13,258 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:22:13,259 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:22:13,292 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:22:13,292 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:22:13,333 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:22:13,334 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:22:13,383 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:22:13,384 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:22:13,443 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:22:13,443 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:22:13,510 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:22:13,511 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:22:13,570 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:22:13,571 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [912072843] [2021-03-11 14:22:13,571 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:22:13,571 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:22:13,571 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [536581389] [2021-03-11 14:22:13,571 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:22:13,571 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:22:13,571 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:22:13,571 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:22:13,571 INFO L87 Difference]: Start difference. First operand 3125 states and 15564 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:22:13,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:22:13,842 INFO L93 Difference]: Finished difference Result 5970 states and 26675 transitions. [2021-03-11 14:22:13,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:22:13,844 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:22:13,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:22:13,857 INFO L225 Difference]: With dead ends: 5970 [2021-03-11 14:22:13,857 INFO L226 Difference]: Without dead ends: 5940 [2021-03-11 14:22:13,857 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 464.0ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:22:13,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5940 states. [2021-03-11 14:22:13,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5940 to 3114. [2021-03-11 14:22:13,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3114 states, 3113 states have (on average 4.991647928043688) internal successors, (15539), 3113 states have internal predecessors, (15539), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:22:13,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3114 states to 3114 states and 15539 transitions. [2021-03-11 14:22:13,992 INFO L78 Accepts]: Start accepts. Automaton has 3114 states and 15539 transitions. Word has length 31 [2021-03-11 14:22:13,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:22:13,992 INFO L480 AbstractCegarLoop]: Abstraction has 3114 states and 15539 transitions. [2021-03-11 14:22:13,992 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:22:13,992 INFO L276 IsEmpty]: Start isEmpty. Operand 3114 states and 15539 transitions. [2021-03-11 14:22:13,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:22:13,997 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:22:13,997 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:22:13,997 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable452 [2021-03-11 14:22:13,997 INFO L428 AbstractCegarLoop]: === Iteration 454 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:22:13,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:22:13,997 INFO L82 PathProgramCache]: Analyzing trace with hash 1056016445, now seen corresponding path program 445 times [2021-03-11 14:22:13,997 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:22:13,997 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [623227419] [2021-03-11 14:22:13,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:22:13,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:22:14,009 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:22:14,009 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:22:14,010 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:22:14,011 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:22:14,018 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:22:14,019 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:22:14,033 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:22:14,033 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:22:14,054 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:22:14,055 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:22:14,082 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:22:14,083 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:22:14,116 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:22:14,116 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:22:14,157 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:22:14,157 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:22:14,204 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:22:14,205 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:22:14,260 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:22:14,261 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:22:14,326 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:22:14,327 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:22:14,386 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:22:14,386 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [623227419] [2021-03-11 14:22:14,386 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:22:14,386 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:22:14,386 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [240709525] [2021-03-11 14:22:14,386 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:22:14,386 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:22:14,386 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:22:14,386 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:22:14,386 INFO L87 Difference]: Start difference. First operand 3114 states and 15539 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:22:14,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:22:14,645 INFO L93 Difference]: Finished difference Result 5966 states and 26678 transitions. [2021-03-11 14:22:14,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:22:14,647 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:22:14,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:22:14,659 INFO L225 Difference]: With dead ends: 5966 [2021-03-11 14:22:14,660 INFO L226 Difference]: Without dead ends: 5950 [2021-03-11 14:22:14,660 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 453.9ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:22:14,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5950 states. [2021-03-11 14:22:14,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5950 to 3124. [2021-03-11 14:22:14,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3124 states, 3123 states have (on average 4.984630163304515) internal successors, (15567), 3123 states have internal predecessors, (15567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:22:14,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3124 states to 3124 states and 15567 transitions. [2021-03-11 14:22:14,800 INFO L78 Accepts]: Start accepts. Automaton has 3124 states and 15567 transitions. Word has length 31 [2021-03-11 14:22:14,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:22:14,800 INFO L480 AbstractCegarLoop]: Abstraction has 3124 states and 15567 transitions. [2021-03-11 14:22:14,800 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:22:14,800 INFO L276 IsEmpty]: Start isEmpty. Operand 3124 states and 15567 transitions. [2021-03-11 14:22:14,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:22:14,805 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:22:14,805 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:22:14,805 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable453 [2021-03-11 14:22:14,805 INFO L428 AbstractCegarLoop]: === Iteration 455 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:22:14,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:22:14,805 INFO L82 PathProgramCache]: Analyzing trace with hash -1478897911, now seen corresponding path program 446 times [2021-03-11 14:22:14,805 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:22:14,805 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [877643375] [2021-03-11 14:22:14,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:22:14,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:22:14,817 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:22:14,818 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:22:14,818 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:22:14,819 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:22:14,827 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:22:14,827 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:22:14,841 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:22:14,842 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:22:14,862 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:22:14,862 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:22:14,889 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:22:14,890 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:22:14,922 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:22:14,923 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:22:14,963 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:22:14,964 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:22:15,011 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:22:15,012 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:22:15,069 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:22:15,070 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:22:15,141 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:22:15,142 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:22:15,203 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:22:15,203 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [877643375] [2021-03-11 14:22:15,203 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:22:15,203 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:22:15,203 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [298944563] [2021-03-11 14:22:15,203 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:22:15,203 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:22:15,204 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:22:15,204 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:22:15,204 INFO L87 Difference]: Start difference. First operand 3124 states and 15567 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:22:15,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:22:15,462 INFO L93 Difference]: Finished difference Result 5968 states and 26677 transitions. [2021-03-11 14:22:15,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:22:15,464 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:22:15,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:22:15,477 INFO L225 Difference]: With dead ends: 5968 [2021-03-11 14:22:15,477 INFO L226 Difference]: Without dead ends: 5945 [2021-03-11 14:22:15,477 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 462.5ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:22:15,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5945 states. [2021-03-11 14:22:15,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5945 to 3119. [2021-03-11 14:22:15,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3119 states, 3118 states have (on average 4.988133418858243) internal successors, (15553), 3118 states have internal predecessors, (15553), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:22:15,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3119 states to 3119 states and 15553 transitions. [2021-03-11 14:22:15,612 INFO L78 Accepts]: Start accepts. Automaton has 3119 states and 15553 transitions. Word has length 31 [2021-03-11 14:22:15,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:22:15,612 INFO L480 AbstractCegarLoop]: Abstraction has 3119 states and 15553 transitions. [2021-03-11 14:22:15,612 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:22:15,612 INFO L276 IsEmpty]: Start isEmpty. Operand 3119 states and 15553 transitions. [2021-03-11 14:22:15,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:22:15,617 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:22:15,617 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:22:15,617 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable454 [2021-03-11 14:22:15,617 INFO L428 AbstractCegarLoop]: === Iteration 456 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:22:15,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:22:15,617 INFO L82 PathProgramCache]: Analyzing trace with hash 207393973, now seen corresponding path program 447 times [2021-03-11 14:22:15,617 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:22:15,617 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1668076492] [2021-03-11 14:22:15,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:22:15,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:22:15,629 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:22:15,629 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:22:15,630 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:22:15,631 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:22:15,638 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:22:15,639 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:22:15,653 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:22:15,653 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:22:15,673 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:22:15,674 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:22:15,701 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:22:15,702 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:22:15,735 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:22:15,736 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:22:15,778 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:22:15,778 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:22:15,826 INFO L142 QuantifierPusher]: treesize reduction 45, result has 59.1 percent of original size [2021-03-11 14:22:15,827 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:22:15,919 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:22:15,920 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:22:15,987 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:22:15,988 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:22:16,051 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:22:16,051 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1668076492] [2021-03-11 14:22:16,051 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:22:16,051 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:22:16,051 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [292870762] [2021-03-11 14:22:16,051 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:22:16,052 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:22:16,052 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:22:16,052 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:22:16,052 INFO L87 Difference]: Start difference. First operand 3119 states and 15553 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:22:16,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:22:16,316 INFO L93 Difference]: Finished difference Result 5967 states and 26675 transitions. [2021-03-11 14:22:16,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:22:16,318 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:22:16,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:22:16,331 INFO L225 Difference]: With dead ends: 5967 [2021-03-11 14:22:16,331 INFO L226 Difference]: Without dead ends: 5951 [2021-03-11 14:22:16,331 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 498.1ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:22:16,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5951 states. [2021-03-11 14:22:16,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5951 to 3124. [2021-03-11 14:22:16,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3124 states, 3123 states have (on average 4.983029138648735) internal successors, (15562), 3123 states have internal predecessors, (15562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:22:16,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3124 states to 3124 states and 15562 transitions. [2021-03-11 14:22:16,466 INFO L78 Accepts]: Start accepts. Automaton has 3124 states and 15562 transitions. Word has length 31 [2021-03-11 14:22:16,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:22:16,466 INFO L480 AbstractCegarLoop]: Abstraction has 3124 states and 15562 transitions. [2021-03-11 14:22:16,466 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:22:16,466 INFO L276 IsEmpty]: Start isEmpty. Operand 3124 states and 15562 transitions. [2021-03-11 14:22:16,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:22:16,471 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:22:16,471 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:22:16,471 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable455 [2021-03-11 14:22:16,471 INFO L428 AbstractCegarLoop]: === Iteration 457 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:22:16,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:22:16,471 INFO L82 PathProgramCache]: Analyzing trace with hash 277504009, now seen corresponding path program 448 times [2021-03-11 14:22:16,471 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:22:16,471 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2140303640] [2021-03-11 14:22:16,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:22:16,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:22:16,483 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:22:16,483 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:22:16,484 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:22:16,485 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:22:16,492 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:22:16,493 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:22:16,507 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:22:16,507 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:22:16,527 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:22:16,528 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:22:16,555 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:22:16,556 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:22:16,592 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:22:16,593 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:22:16,634 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:22:16,635 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:22:16,683 INFO L142 QuantifierPusher]: treesize reduction 45, result has 59.1 percent of original size [2021-03-11 14:22:16,683 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:22:16,779 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:22:16,780 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:22:16,847 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:22:16,848 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:22:16,908 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:22:16,909 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2140303640] [2021-03-11 14:22:16,909 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:22:16,909 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:22:16,909 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [465950333] [2021-03-11 14:22:16,909 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:22:16,909 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:22:16,909 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:22:16,909 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:22:16,909 INFO L87 Difference]: Start difference. First operand 3124 states and 15562 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:22:17,169 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 40 [2021-03-11 14:22:17,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:22:17,202 INFO L93 Difference]: Finished difference Result 5970 states and 26676 transitions. [2021-03-11 14:22:17,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:22:17,203 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:22:17,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:22:17,216 INFO L225 Difference]: With dead ends: 5970 [2021-03-11 14:22:17,216 INFO L226 Difference]: Without dead ends: 5946 [2021-03-11 14:22:17,217 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 515.2ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:22:17,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5946 states. [2021-03-11 14:22:17,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5946 to 3119. [2021-03-11 14:22:17,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3119 states, 3118 states have (on average 4.986529826812059) internal successors, (15548), 3118 states have internal predecessors, (15548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:22:17,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3119 states to 3119 states and 15548 transitions. [2021-03-11 14:22:17,353 INFO L78 Accepts]: Start accepts. Automaton has 3119 states and 15548 transitions. Word has length 31 [2021-03-11 14:22:17,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:22:17,353 INFO L480 AbstractCegarLoop]: Abstraction has 3119 states and 15548 transitions. [2021-03-11 14:22:17,353 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:22:17,353 INFO L276 IsEmpty]: Start isEmpty. Operand 3119 states and 15548 transitions. [2021-03-11 14:22:17,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:22:17,358 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:22:17,358 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:22:17,358 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable456 [2021-03-11 14:22:17,359 INFO L428 AbstractCegarLoop]: === Iteration 458 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:22:17,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:22:17,359 INFO L82 PathProgramCache]: Analyzing trace with hash 694513205, now seen corresponding path program 449 times [2021-03-11 14:22:17,359 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:22:17,359 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [487006906] [2021-03-11 14:22:17,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:22:17,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:22:17,371 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:22:17,371 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:22:17,372 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:22:17,372 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:22:17,380 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:22:17,381 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:22:17,395 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:22:17,395 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:22:17,416 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:22:17,416 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:22:17,444 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:22:17,444 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:22:17,478 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:22:17,478 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:22:17,519 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:22:17,520 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:22:17,568 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:22:17,568 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:22:17,626 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:22:17,627 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:22:17,694 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:22:17,695 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:22:17,755 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:22:17,755 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [487006906] [2021-03-11 14:22:17,756 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:22:17,756 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:22:17,756 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1567903578] [2021-03-11 14:22:17,756 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:22:17,756 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:22:17,756 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:22:17,756 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:22:17,756 INFO L87 Difference]: Start difference. First operand 3119 states and 15548 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:22:18,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:22:18,035 INFO L93 Difference]: Finished difference Result 5973 states and 26684 transitions. [2021-03-11 14:22:18,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:22:18,037 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:22:18,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:22:18,050 INFO L225 Difference]: With dead ends: 5973 [2021-03-11 14:22:18,050 INFO L226 Difference]: Without dead ends: 5955 [2021-03-11 14:22:18,050 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 465.0ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:22:18,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5955 states. [2021-03-11 14:22:18,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5955 to 3126. [2021-03-11 14:22:18,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3126 states, 3125 states have (on average 4.97952) internal successors, (15561), 3125 states have internal predecessors, (15561), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:22:18,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3126 states to 3126 states and 15561 transitions. [2021-03-11 14:22:18,185 INFO L78 Accepts]: Start accepts. Automaton has 3126 states and 15561 transitions. Word has length 31 [2021-03-11 14:22:18,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:22:18,185 INFO L480 AbstractCegarLoop]: Abstraction has 3126 states and 15561 transitions. [2021-03-11 14:22:18,185 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:22:18,185 INFO L276 IsEmpty]: Start isEmpty. Operand 3126 states and 15561 transitions. [2021-03-11 14:22:18,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:22:18,190 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:22:18,190 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:22:18,190 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable457 [2021-03-11 14:22:18,190 INFO L428 AbstractCegarLoop]: === Iteration 459 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:22:18,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:22:18,190 INFO L82 PathProgramCache]: Analyzing trace with hash -995429699, now seen corresponding path program 450 times [2021-03-11 14:22:18,190 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:22:18,190 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [646864030] [2021-03-11 14:22:18,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:22:18,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:22:18,202 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:22:18,202 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:22:18,203 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:22:18,204 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:22:18,212 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:22:18,213 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:22:18,228 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:22:18,228 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:22:18,250 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:22:18,251 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:22:18,280 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:22:18,281 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:22:18,317 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:22:18,318 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:22:18,362 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:22:18,363 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:22:18,413 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:22:18,414 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:22:18,476 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:22:18,477 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:22:18,548 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:22:18,548 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:22:18,612 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:22:18,612 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [646864030] [2021-03-11 14:22:18,612 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:22:18,612 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:22:18,612 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [150392442] [2021-03-11 14:22:18,612 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:22:18,612 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:22:18,613 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:22:18,613 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:22:18,613 INFO L87 Difference]: Start difference. First operand 3126 states and 15561 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:22:18,882 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 40 [2021-03-11 14:22:18,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:22:18,916 INFO L93 Difference]: Finished difference Result 5974 states and 26679 transitions. [2021-03-11 14:22:18,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:22:18,917 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:22:18,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:22:18,930 INFO L225 Difference]: With dead ends: 5974 [2021-03-11 14:22:18,930 INFO L226 Difference]: Without dead ends: 5943 [2021-03-11 14:22:18,930 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 499.1ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:22:19,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5943 states. [2021-03-11 14:22:19,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5943 to 3114. [2021-03-11 14:22:19,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3114 states, 3113 states have (on average 4.990041760359782) internal successors, (15534), 3113 states have internal predecessors, (15534), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:22:19,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3114 states to 3114 states and 15534 transitions. [2021-03-11 14:22:19,094 INFO L78 Accepts]: Start accepts. Automaton has 3114 states and 15534 transitions. Word has length 31 [2021-03-11 14:22:19,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:22:19,094 INFO L480 AbstractCegarLoop]: Abstraction has 3114 states and 15534 transitions. [2021-03-11 14:22:19,094 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:22:19,094 INFO L276 IsEmpty]: Start isEmpty. Operand 3114 states and 15534 transitions. [2021-03-11 14:22:19,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:22:19,099 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:22:19,099 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:22:19,099 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable458 [2021-03-11 14:22:19,099 INFO L428 AbstractCegarLoop]: === Iteration 460 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:22:19,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:22:19,100 INFO L82 PathProgramCache]: Analyzing trace with hash -2020041787, now seen corresponding path program 451 times [2021-03-11 14:22:19,100 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:22:19,100 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [262372091] [2021-03-11 14:22:19,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:22:19,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:22:19,112 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:22:19,113 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:22:19,113 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:22:19,114 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:22:19,122 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:22:19,123 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:22:19,137 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:22:19,138 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:22:19,159 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:22:19,159 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:22:19,187 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:22:19,188 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:22:19,222 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:22:19,223 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:22:19,264 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:22:19,265 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:22:19,315 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:22:19,316 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:22:19,374 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:22:19,375 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:22:19,443 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:22:19,444 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:22:19,505 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:22:19,505 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [262372091] [2021-03-11 14:22:19,505 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:22:19,505 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:22:19,505 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [882595003] [2021-03-11 14:22:19,505 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:22:19,505 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:22:19,505 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:22:19,506 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:22:19,506 INFO L87 Difference]: Start difference. First operand 3114 states and 15534 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:22:19,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:22:19,836 INFO L93 Difference]: Finished difference Result 5973 states and 26692 transitions. [2021-03-11 14:22:19,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:22:19,838 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:22:19,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:22:19,851 INFO L225 Difference]: With dead ends: 5973 [2021-03-11 14:22:19,851 INFO L226 Difference]: Without dead ends: 5956 [2021-03-11 14:22:19,851 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 472.3ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:22:19,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5956 states. [2021-03-11 14:22:19,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5956 to 3126. [2021-03-11 14:22:19,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3126 states, 3125 states have (on average 4.98176) internal successors, (15568), 3125 states have internal predecessors, (15568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:22:19,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3126 states to 3126 states and 15568 transitions. [2021-03-11 14:22:19,986 INFO L78 Accepts]: Start accepts. Automaton has 3126 states and 15568 transitions. Word has length 31 [2021-03-11 14:22:19,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:22:19,986 INFO L480 AbstractCegarLoop]: Abstraction has 3126 states and 15568 transitions. [2021-03-11 14:22:19,986 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:22:19,986 INFO L276 IsEmpty]: Start isEmpty. Operand 3126 states and 15568 transitions. [2021-03-11 14:22:19,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:22:19,991 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:22:19,991 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:22:19,991 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable459 [2021-03-11 14:22:19,991 INFO L428 AbstractCegarLoop]: === Iteration 461 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:22:19,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:22:19,992 INFO L82 PathProgramCache]: Analyzing trace with hash 1429954057, now seen corresponding path program 452 times [2021-03-11 14:22:19,992 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:22:19,992 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1040827675] [2021-03-11 14:22:19,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:22:19,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:22:20,004 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:22:20,005 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:22:20,006 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:22:20,006 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:22:20,015 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:22:20,016 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:22:20,030 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:22:20,031 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:22:20,052 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:22:20,052 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:22:20,081 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:22:20,082 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:22:20,116 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:22:20,117 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:22:20,159 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:22:20,160 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:22:20,212 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:22:20,213 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:22:20,278 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:22:20,278 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:22:20,347 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:22:20,348 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:22:20,412 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:22:20,412 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1040827675] [2021-03-11 14:22:20,412 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:22:20,412 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:22:20,412 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [207408473] [2021-03-11 14:22:20,412 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:22:20,412 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:22:20,412 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:22:20,413 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:22:20,413 INFO L87 Difference]: Start difference. First operand 3126 states and 15568 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:22:20,774 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 39 [2021-03-11 14:22:20,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:22:20,805 INFO L93 Difference]: Finished difference Result 5974 states and 26688 transitions. [2021-03-11 14:22:20,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:22:20,807 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:22:20,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:22:20,821 INFO L225 Difference]: With dead ends: 5974 [2021-03-11 14:22:20,821 INFO L226 Difference]: Without dead ends: 5950 [2021-03-11 14:22:20,821 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 499.0ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:22:20,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5950 states. [2021-03-11 14:22:20,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5950 to 3120. [2021-03-11 14:22:20,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3120 states, 3119 states have (on average 4.98589291439564) internal successors, (15551), 3119 states have internal predecessors, (15551), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:22:20,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3120 states to 3120 states and 15551 transitions. [2021-03-11 14:22:20,965 INFO L78 Accepts]: Start accepts. Automaton has 3120 states and 15551 transitions. Word has length 31 [2021-03-11 14:22:20,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:22:20,965 INFO L480 AbstractCegarLoop]: Abstraction has 3120 states and 15551 transitions. [2021-03-11 14:22:20,965 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:22:20,965 INFO L276 IsEmpty]: Start isEmpty. Operand 3120 states and 15551 transitions. [2021-03-11 14:22:20,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:22:20,970 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:22:20,970 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:22:20,970 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable460 [2021-03-11 14:22:20,970 INFO L428 AbstractCegarLoop]: === Iteration 462 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:22:20,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:22:20,970 INFO L82 PathProgramCache]: Analyzing trace with hash 1426303037, now seen corresponding path program 453 times [2021-03-11 14:22:20,970 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:22:20,970 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [862855310] [2021-03-11 14:22:20,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:22:20,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:22:20,982 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:22:20,983 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:22:20,984 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:22:20,984 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:22:20,994 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:22:20,995 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:22:21,011 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:22:21,011 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:22:21,035 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:22:21,036 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:22:21,068 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:22:21,068 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:22:21,108 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:22:21,108 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:22:21,156 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:22:21,157 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:22:21,213 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:22:21,213 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:22:21,278 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:22:21,279 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:22:21,357 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:22:21,358 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:22:21,427 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:22:21,427 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [862855310] [2021-03-11 14:22:21,427 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:22:21,428 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:22:21,428 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [794900214] [2021-03-11 14:22:21,428 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:22:21,428 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:22:21,428 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:22:21,428 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:22:21,428 INFO L87 Difference]: Start difference. First operand 3120 states and 15551 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:22:21,737 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 39 [2021-03-11 14:22:21,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:22:21,764 INFO L93 Difference]: Finished difference Result 5974 states and 26688 transitions. [2021-03-11 14:22:21,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:22:21,766 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:22:21,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:22:21,780 INFO L225 Difference]: With dead ends: 5974 [2021-03-11 14:22:21,780 INFO L226 Difference]: Without dead ends: 5957 [2021-03-11 14:22:21,780 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 534.6ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:22:21,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5957 states. [2021-03-11 14:22:21,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5957 to 3126. [2021-03-11 14:22:21,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3126 states, 3125 states have (on average 4.97984) internal successors, (15562), 3125 states have internal predecessors, (15562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:22:21,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3126 states to 3126 states and 15562 transitions. [2021-03-11 14:22:21,923 INFO L78 Accepts]: Start accepts. Automaton has 3126 states and 15562 transitions. Word has length 31 [2021-03-11 14:22:21,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:22:21,923 INFO L480 AbstractCegarLoop]: Abstraction has 3126 states and 15562 transitions. [2021-03-11 14:22:21,923 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:22:21,923 INFO L276 IsEmpty]: Start isEmpty. Operand 3126 states and 15562 transitions. [2021-03-11 14:22:21,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:22:21,928 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:22:21,928 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:22:21,928 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable461 [2021-03-11 14:22:21,928 INFO L428 AbstractCegarLoop]: === Iteration 463 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:22:21,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:22:21,928 INFO L82 PathProgramCache]: Analyzing trace with hash -1108611319, now seen corresponding path program 454 times [2021-03-11 14:22:21,928 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:22:21,928 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1153006338] [2021-03-11 14:22:21,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:22:21,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:22:21,940 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:22:21,941 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:22:21,941 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:22:21,942 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:22:21,951 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:22:21,952 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:22:21,969 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:22:21,970 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:22:21,994 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:22:21,995 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:22:22,027 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:22:22,028 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:22:22,066 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:22:22,067 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:22:22,114 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:22:22,114 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:22:22,171 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:22:22,172 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:22:22,236 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:22:22,237 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:22:22,314 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:22:22,315 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:22:22,385 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:22:22,385 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1153006338] [2021-03-11 14:22:22,385 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:22:22,385 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:22:22,385 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1471786375] [2021-03-11 14:22:22,385 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:22:22,386 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:22:22,386 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:22:22,386 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:22:22,386 INFO L87 Difference]: Start difference. First operand 3126 states and 15562 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:22:22,696 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 41 [2021-03-11 14:22:22,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:22:22,725 INFO L93 Difference]: Finished difference Result 5976 states and 26686 transitions. [2021-03-11 14:22:22,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:22:22,726 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:22:22,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:22:22,739 INFO L225 Difference]: With dead ends: 5976 [2021-03-11 14:22:22,740 INFO L226 Difference]: Without dead ends: 5951 [2021-03-11 14:22:22,740 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 540.1ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:22:22,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5951 states. [2021-03-11 14:22:22,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5951 to 3120. [2021-03-11 14:22:22,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3120 states, 3119 states have (on average 4.983969220904136) internal successors, (15545), 3119 states have internal predecessors, (15545), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:22:22,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3120 states to 3120 states and 15545 transitions. [2021-03-11 14:22:22,877 INFO L78 Accepts]: Start accepts. Automaton has 3120 states and 15545 transitions. Word has length 31 [2021-03-11 14:22:22,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:22:22,878 INFO L480 AbstractCegarLoop]: Abstraction has 3120 states and 15545 transitions. [2021-03-11 14:22:22,878 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:22:22,878 INFO L276 IsEmpty]: Start isEmpty. Operand 3120 states and 15545 transitions. [2021-03-11 14:22:22,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:22:22,882 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:22:22,882 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:22:22,882 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable462 [2021-03-11 14:22:22,882 INFO L428 AbstractCegarLoop]: === Iteration 464 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:22:22,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:22:22,883 INFO L82 PathProgramCache]: Analyzing trace with hash 157020349, now seen corresponding path program 455 times [2021-03-11 14:22:22,883 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:22:22,883 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1512001773] [2021-03-11 14:22:22,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:22:22,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:22:22,895 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:22:22,895 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:22:22,896 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:22:22,897 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:22:22,905 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:22:22,906 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:22:22,920 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:22:22,921 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:22:22,943 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:22:22,943 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:22:22,972 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:22:22,973 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:22:23,008 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:22:23,009 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:22:23,051 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:22:23,052 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:22:23,103 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:22:23,104 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:22:23,164 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:22:23,165 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:22:23,234 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:22:23,235 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:22:23,297 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:22:23,298 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1512001773] [2021-03-11 14:22:23,298 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:22:23,298 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:22:23,298 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [147254690] [2021-03-11 14:22:23,298 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:22:23,298 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:22:23,298 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:22:23,298 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:22:23,298 INFO L87 Difference]: Start difference. First operand 3120 states and 15545 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:22:23,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:22:23,582 INFO L93 Difference]: Finished difference Result 5977 states and 26689 transitions. [2021-03-11 14:22:23,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:22:23,583 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:22:23,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:22:23,596 INFO L225 Difference]: With dead ends: 5977 [2021-03-11 14:22:23,596 INFO L226 Difference]: Without dead ends: 5959 [2021-03-11 14:22:23,597 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 482.9ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:22:23,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5959 states. [2021-03-11 14:22:23,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5959 to 3127. [2021-03-11 14:22:23,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3127 states, 3126 states have (on average 4.976967370441459) internal successors, (15558), 3126 states have internal predecessors, (15558), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:22:23,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3127 states to 3127 states and 15558 transitions. [2021-03-11 14:22:23,730 INFO L78 Accepts]: Start accepts. Automaton has 3127 states and 15558 transitions. Word has length 31 [2021-03-11 14:22:23,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:22:23,730 INFO L480 AbstractCegarLoop]: Abstraction has 3127 states and 15558 transitions. [2021-03-11 14:22:23,730 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:22:23,731 INFO L276 IsEmpty]: Start isEmpty. Operand 3127 states and 15558 transitions. [2021-03-11 14:22:23,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:22:23,735 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:22:23,735 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:22:23,735 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable463 [2021-03-11 14:22:23,735 INFO L428 AbstractCegarLoop]: === Iteration 465 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:22:23,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:22:23,736 INFO L82 PathProgramCache]: Analyzing trace with hash -1532922555, now seen corresponding path program 456 times [2021-03-11 14:22:23,736 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:22:23,736 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1036193215] [2021-03-11 14:22:23,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:22:23,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:22:23,747 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:22:23,748 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:22:23,749 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:22:23,749 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:22:23,758 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:22:23,758 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:22:23,773 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:22:23,774 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:22:23,795 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:22:23,795 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:22:23,824 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:22:23,825 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:22:23,860 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:22:23,860 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:22:23,903 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:22:23,903 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:22:23,954 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:22:23,955 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:22:24,016 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:22:24,016 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:22:24,087 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:22:24,088 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:22:24,150 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:22:24,151 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1036193215] [2021-03-11 14:22:24,151 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:22:24,151 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:22:24,151 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1833354363] [2021-03-11 14:22:24,151 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:22:24,151 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:22:24,151 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:22:24,151 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:22:24,151 INFO L87 Difference]: Start difference. First operand 3127 states and 15558 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:22:24,463 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 41 [2021-03-11 14:22:24,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:22:24,500 INFO L93 Difference]: Finished difference Result 5978 states and 26684 transitions. [2021-03-11 14:22:24,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:22:24,501 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:22:24,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:22:24,515 INFO L225 Difference]: With dead ends: 5978 [2021-03-11 14:22:24,515 INFO L226 Difference]: Without dead ends: 5941 [2021-03-11 14:22:24,515 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 491.4ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:22:24,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5941 states. [2021-03-11 14:22:24,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5941 to 3109. [2021-03-11 14:22:24,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3109 states, 3108 states have (on average 4.993564993564994) internal successors, (15520), 3108 states have internal predecessors, (15520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:22:24,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3109 states to 3109 states and 15520 transitions. [2021-03-11 14:22:24,649 INFO L78 Accepts]: Start accepts. Automaton has 3109 states and 15520 transitions. Word has length 31 [2021-03-11 14:22:24,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:22:24,649 INFO L480 AbstractCegarLoop]: Abstraction has 3109 states and 15520 transitions. [2021-03-11 14:22:24,649 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:22:24,649 INFO L276 IsEmpty]: Start isEmpty. Operand 3109 states and 15520 transitions. [2021-03-11 14:22:24,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:22:24,654 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:22:24,654 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:22:24,654 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable464 [2021-03-11 14:22:24,654 INFO L428 AbstractCegarLoop]: === Iteration 466 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:22:24,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:22:24,654 INFO L82 PathProgramCache]: Analyzing trace with hash 1007333173, now seen corresponding path program 457 times [2021-03-11 14:22:24,655 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:22:24,655 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1038435122] [2021-03-11 14:22:24,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:22:24,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:22:24,666 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:22:24,667 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:22:24,668 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:22:24,668 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:22:24,677 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:22:24,677 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:22:24,692 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:22:24,693 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:22:24,714 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:22:24,714 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:22:24,744 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:22:24,745 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:22:24,783 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:22:24,784 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:22:24,829 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:22:24,830 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:22:24,881 INFO L142 QuantifierPusher]: treesize reduction 45, result has 59.1 percent of original size [2021-03-11 14:22:24,881 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:22:24,977 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:22:24,978 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:22:25,049 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:22:25,050 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:22:25,112 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:22:25,113 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1038435122] [2021-03-11 14:22:25,113 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:22:25,113 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:22:25,113 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1661578672] [2021-03-11 14:22:25,113 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:22:25,113 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:22:25,113 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:22:25,113 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:22:25,113 INFO L87 Difference]: Start difference. First operand 3109 states and 15520 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:22:25,438 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 41 [2021-03-11 14:22:25,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:22:25,460 INFO L93 Difference]: Finished difference Result 5994 states and 26761 transitions. [2021-03-11 14:22:25,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:22:25,462 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:22:25,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:22:25,475 INFO L225 Difference]: With dead ends: 5994 [2021-03-11 14:22:25,475 INFO L226 Difference]: Without dead ends: 5974 [2021-03-11 14:22:25,475 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 535.6ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:22:25,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5974 states. [2021-03-11 14:22:25,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5974 to 3127. [2021-03-11 14:22:25,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3127 states, 3126 states have (on average 4.984964811260396) internal successors, (15583), 3126 states have internal predecessors, (15583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:22:25,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3127 states to 3127 states and 15583 transitions. [2021-03-11 14:22:25,609 INFO L78 Accepts]: Start accepts. Automaton has 3127 states and 15583 transitions. Word has length 31 [2021-03-11 14:22:25,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:22:25,609 INFO L480 AbstractCegarLoop]: Abstraction has 3127 states and 15583 transitions. [2021-03-11 14:22:25,609 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:22:25,609 INFO L276 IsEmpty]: Start isEmpty. Operand 3127 states and 15583 transitions. [2021-03-11 14:22:25,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:22:25,614 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:22:25,614 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:22:25,614 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable465 [2021-03-11 14:22:25,614 INFO L428 AbstractCegarLoop]: === Iteration 467 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:22:25,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:22:25,614 INFO L82 PathProgramCache]: Analyzing trace with hash 162361721, now seen corresponding path program 458 times [2021-03-11 14:22:25,614 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:22:25,614 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1542887582] [2021-03-11 14:22:25,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:22:25,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:22:25,626 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:22:25,627 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:22:25,627 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:22:25,628 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:22:25,636 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:22:25,637 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:22:25,652 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:22:25,653 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:22:25,674 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:22:25,675 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:22:25,703 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:22:25,704 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:22:25,739 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:22:25,740 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:22:25,784 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:22:25,785 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:22:25,839 INFO L142 QuantifierPusher]: treesize reduction 45, result has 59.1 percent of original size [2021-03-11 14:22:25,840 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:22:25,936 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:22:25,937 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:22:26,009 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:22:26,010 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:22:26,074 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:22:26,074 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1542887582] [2021-03-11 14:22:26,074 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:22:26,074 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:22:26,074 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1137769675] [2021-03-11 14:22:26,074 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:22:26,074 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:22:26,074 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:22:26,074 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:22:26,075 INFO L87 Difference]: Start difference. First operand 3127 states and 15583 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:22:26,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:22:26,354 INFO L93 Difference]: Finished difference Result 5991 states and 26749 transitions. [2021-03-11 14:22:26,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:22:26,356 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:22:26,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:22:26,369 INFO L225 Difference]: With dead ends: 5991 [2021-03-11 14:22:26,369 INFO L226 Difference]: Without dead ends: 5968 [2021-03-11 14:22:26,369 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 528.7ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:22:26,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5968 states. [2021-03-11 14:22:26,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5968 to 3121. [2021-03-11 14:22:26,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3121 states, 3120 states have (on average 4.989102564102564) internal successors, (15566), 3120 states have internal predecessors, (15566), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:22:26,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3121 states to 3121 states and 15566 transitions. [2021-03-11 14:22:26,504 INFO L78 Accepts]: Start accepts. Automaton has 3121 states and 15566 transitions. Word has length 31 [2021-03-11 14:22:26,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:22:26,504 INFO L480 AbstractCegarLoop]: Abstraction has 3121 states and 15566 transitions. [2021-03-11 14:22:26,504 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:22:26,504 INFO L276 IsEmpty]: Start isEmpty. Operand 3121 states and 15566 transitions. [2021-03-11 14:22:26,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:22:26,508 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:22:26,508 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:22:26,509 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable466 [2021-03-11 14:22:26,509 INFO L428 AbstractCegarLoop]: === Iteration 468 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:22:26,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:22:26,509 INFO L82 PathProgramCache]: Analyzing trace with hash 583021937, now seen corresponding path program 459 times [2021-03-11 14:22:26,509 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:22:26,509 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1491243034] [2021-03-11 14:22:26,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:22:26,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:22:26,520 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:22:26,521 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:22:26,522 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:22:26,522 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:22:26,531 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:22:26,532 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:22:26,546 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:22:26,547 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:22:26,568 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:22:26,569 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:22:26,598 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:22:26,598 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:22:26,633 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:22:26,634 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:22:26,677 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:22:26,678 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:22:26,729 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:22:26,730 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:22:26,790 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:22:26,791 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:22:26,862 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:22:26,863 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:22:26,926 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:22:26,926 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1491243034] [2021-03-11 14:22:26,926 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:22:26,927 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:22:26,927 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1831012872] [2021-03-11 14:22:26,927 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:22:26,927 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:22:26,927 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:22:26,927 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:22:26,927 INFO L87 Difference]: Start difference. First operand 3121 states and 15566 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:22:27,274 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 41 [2021-03-11 14:22:27,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:22:27,297 INFO L93 Difference]: Finished difference Result 5996 states and 26760 transitions. [2021-03-11 14:22:27,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:22:27,298 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:22:27,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:22:27,311 INFO L225 Difference]: With dead ends: 5996 [2021-03-11 14:22:27,311 INFO L226 Difference]: Without dead ends: 5976 [2021-03-11 14:22:27,311 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 495.8ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:22:27,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5976 states. [2021-03-11 14:22:27,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5976 to 3128. [2021-03-11 14:22:27,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3128 states, 3127 states have (on average 4.9820914614646625) internal successors, (15579), 3127 states have internal predecessors, (15579), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:22:27,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3128 states to 3128 states and 15579 transitions. [2021-03-11 14:22:27,448 INFO L78 Accepts]: Start accepts. Automaton has 3128 states and 15579 transitions. Word has length 31 [2021-03-11 14:22:27,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:22:27,448 INFO L480 AbstractCegarLoop]: Abstraction has 3128 states and 15579 transitions. [2021-03-11 14:22:27,448 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:22:27,448 INFO L276 IsEmpty]: Start isEmpty. Operand 3128 states and 15579 transitions. [2021-03-11 14:22:27,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:22:27,453 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:22:27,453 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:22:27,453 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable467 [2021-03-11 14:22:27,453 INFO L428 AbstractCegarLoop]: === Iteration 469 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:22:27,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:22:27,453 INFO L82 PathProgramCache]: Analyzing trace with hash -1106920967, now seen corresponding path program 460 times [2021-03-11 14:22:27,454 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:22:27,454 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [523867295] [2021-03-11 14:22:27,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:22:27,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:22:27,470 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:22:27,471 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:22:27,472 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:22:27,472 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:22:27,483 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:22:27,484 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:22:27,500 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:22:27,501 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:22:27,522 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:22:27,523 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:22:27,551 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:22:27,552 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:22:27,588 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:22:27,588 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:22:27,632 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:22:27,633 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:22:27,684 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:22:27,684 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:22:27,746 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:22:27,747 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:22:27,820 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:22:27,821 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:22:27,884 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:22:27,885 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [523867295] [2021-03-11 14:22:27,885 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:22:27,885 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:22:27,885 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [513214435] [2021-03-11 14:22:27,885 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:22:27,885 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:22:27,885 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:22:27,885 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:22:27,885 INFO L87 Difference]: Start difference. First operand 3128 states and 15579 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:22:28,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:22:28,194 INFO L93 Difference]: Finished difference Result 5994 states and 26749 transitions. [2021-03-11 14:22:28,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:22:28,195 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:22:28,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:22:28,209 INFO L225 Difference]: With dead ends: 5994 [2021-03-11 14:22:28,209 INFO L226 Difference]: Without dead ends: 5969 [2021-03-11 14:22:28,209 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 496.6ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:22:28,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5969 states. [2021-03-11 14:22:28,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5969 to 3121. [2021-03-11 14:22:28,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3121 states, 3120 states have (on average 4.987179487179487) internal successors, (15560), 3120 states have internal predecessors, (15560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:22:28,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3121 states to 3121 states and 15560 transitions. [2021-03-11 14:22:28,343 INFO L78 Accepts]: Start accepts. Automaton has 3121 states and 15560 transitions. Word has length 31 [2021-03-11 14:22:28,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:22:28,343 INFO L480 AbstractCegarLoop]: Abstraction has 3121 states and 15560 transitions. [2021-03-11 14:22:28,343 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:22:28,343 INFO L276 IsEmpty]: Start isEmpty. Operand 3121 states and 15560 transitions. [2021-03-11 14:22:28,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:22:28,348 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:22:28,348 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:22:28,348 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable468 [2021-03-11 14:22:28,348 INFO L428 AbstractCegarLoop]: === Iteration 470 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:22:28,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:22:28,348 INFO L82 PathProgramCache]: Analyzing trace with hash -686260751, now seen corresponding path program 461 times [2021-03-11 14:22:28,348 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:22:28,349 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [230871295] [2021-03-11 14:22:28,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:22:28,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:22:28,360 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:22:28,361 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:22:28,362 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:22:28,362 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:22:28,371 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:22:28,372 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:22:28,386 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:22:28,387 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:22:28,409 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:22:28,410 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:22:28,439 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:22:28,440 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:22:28,479 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:22:28,480 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:22:28,527 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:22:28,528 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:22:28,580 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:22:28,581 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:22:28,642 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:22:28,643 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:22:28,715 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:22:28,716 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:22:28,779 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:22:28,779 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [230871295] [2021-03-11 14:22:28,779 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:22:28,779 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:22:28,779 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1873841840] [2021-03-11 14:22:28,779 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:22:28,779 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:22:28,780 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:22:28,780 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:22:28,780 INFO L87 Difference]: Start difference. First operand 3121 states and 15560 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:22:29,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:22:29,175 INFO L93 Difference]: Finished difference Result 5989 states and 26739 transitions. [2021-03-11 14:22:29,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:22:29,177 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:22:29,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:22:29,190 INFO L225 Difference]: With dead ends: 5989 [2021-03-11 14:22:29,190 INFO L226 Difference]: Without dead ends: 5972 [2021-03-11 14:22:29,190 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 499.8ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:22:29,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5972 states. [2021-03-11 14:22:29,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5972 to 3127. [2021-03-11 14:22:29,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3127 states, 3126 states have (on average 4.9811260396673065) internal successors, (15571), 3126 states have internal predecessors, (15571), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:22:29,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3127 states to 3127 states and 15571 transitions. [2021-03-11 14:22:29,323 INFO L78 Accepts]: Start accepts. Automaton has 3127 states and 15571 transitions. Word has length 31 [2021-03-11 14:22:29,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:22:29,324 INFO L480 AbstractCegarLoop]: Abstraction has 3127 states and 15571 transitions. [2021-03-11 14:22:29,324 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:22:29,324 INFO L276 IsEmpty]: Start isEmpty. Operand 3127 states and 15571 transitions. [2021-03-11 14:22:29,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:22:29,328 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:22:29,328 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:22:29,328 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable469 [2021-03-11 14:22:29,329 INFO L428 AbstractCegarLoop]: === Iteration 471 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:22:29,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:22:29,329 INFO L82 PathProgramCache]: Analyzing trace with hash -1531232203, now seen corresponding path program 462 times [2021-03-11 14:22:29,329 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:22:29,329 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1968870765] [2021-03-11 14:22:29,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:22:29,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:22:29,341 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:22:29,341 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:22:29,342 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:22:29,343 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:22:29,351 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:22:29,352 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:22:29,367 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:22:29,367 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:22:29,389 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:22:29,390 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:22:29,419 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:22:29,419 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:22:29,455 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:22:29,456 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:22:29,500 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:22:29,501 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:22:29,553 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:22:29,553 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:22:29,616 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:22:29,617 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:22:29,689 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:22:29,690 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:22:29,754 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:22:29,754 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1968870765] [2021-03-11 14:22:29,754 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:22:29,754 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:22:29,754 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1933614478] [2021-03-11 14:22:29,754 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:22:29,754 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:22:29,754 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:22:29,754 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:22:29,755 INFO L87 Difference]: Start difference. First operand 3127 states and 15571 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:22:30,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:22:30,127 INFO L93 Difference]: Finished difference Result 5990 states and 26735 transitions. [2021-03-11 14:22:30,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:22:30,129 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:22:30,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:22:30,142 INFO L225 Difference]: With dead ends: 5990 [2021-03-11 14:22:30,142 INFO L226 Difference]: Without dead ends: 5960 [2021-03-11 14:22:30,142 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 496.5ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:22:30,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5960 states. [2021-03-11 14:22:30,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5960 to 3115. [2021-03-11 14:22:30,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3115 states, 3114 states have (on average 4.991329479768786) internal successors, (15543), 3114 states have internal predecessors, (15543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:22:30,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3115 states to 3115 states and 15543 transitions. [2021-03-11 14:22:30,277 INFO L78 Accepts]: Start accepts. Automaton has 3115 states and 15543 transitions. Word has length 31 [2021-03-11 14:22:30,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:22:30,277 INFO L480 AbstractCegarLoop]: Abstraction has 3115 states and 15543 transitions. [2021-03-11 14:22:30,277 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:22:30,277 INFO L276 IsEmpty]: Start isEmpty. Operand 3115 states and 15543 transitions. [2021-03-11 14:22:30,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:22:30,282 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:22:30,282 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:22:30,282 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable470 [2021-03-11 14:22:30,282 INFO L428 AbstractCegarLoop]: === Iteration 472 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:22:30,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:22:30,282 INFO L82 PathProgramCache]: Analyzing trace with hash 469840317, now seen corresponding path program 463 times [2021-03-11 14:22:30,282 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:22:30,282 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1260848975] [2021-03-11 14:22:30,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:22:30,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:22:30,294 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:22:30,294 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:22:30,295 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:22:30,296 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:22:30,304 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:22:30,305 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:22:30,320 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:22:30,321 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:22:30,343 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:22:30,343 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:22:30,373 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:22:30,374 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:22:30,410 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:22:30,411 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:22:30,455 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:22:30,456 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:22:30,508 INFO L142 QuantifierPusher]: treesize reduction 45, result has 59.1 percent of original size [2021-03-11 14:22:30,509 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:22:30,608 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:22:30,608 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:22:30,681 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:22:30,682 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:22:30,746 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:22:30,746 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1260848975] [2021-03-11 14:22:30,746 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:22:30,747 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:22:30,747 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [771916961] [2021-03-11 14:22:30,747 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:22:30,747 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:22:30,747 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:22:30,747 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:22:30,747 INFO L87 Difference]: Start difference. First operand 3115 states and 15543 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:22:31,076 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 41 [2021-03-11 14:22:31,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:22:31,102 INFO L93 Difference]: Finished difference Result 5996 states and 26760 transitions. [2021-03-11 14:22:31,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:22:31,104 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:22:31,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:22:31,117 INFO L225 Difference]: With dead ends: 5996 [2021-03-11 14:22:31,117 INFO L226 Difference]: Without dead ends: 5976 [2021-03-11 14:22:31,117 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 549.5ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:22:31,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5976 states. [2021-03-11 14:22:31,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5976 to 3127. [2021-03-11 14:22:31,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3127 states, 3126 states have (on average 4.983045425463851) internal successors, (15577), 3126 states have internal predecessors, (15577), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:22:31,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3127 states to 3127 states and 15577 transitions. [2021-03-11 14:22:31,253 INFO L78 Accepts]: Start accepts. Automaton has 3127 states and 15577 transitions. Word has length 31 [2021-03-11 14:22:31,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:22:31,253 INFO L480 AbstractCegarLoop]: Abstraction has 3127 states and 15577 transitions. [2021-03-11 14:22:31,253 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:22:31,253 INFO L276 IsEmpty]: Start isEmpty. Operand 3127 states and 15577 transitions. [2021-03-11 14:22:31,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:22:31,258 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:22:31,258 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:22:31,258 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable471 [2021-03-11 14:22:31,258 INFO L428 AbstractCegarLoop]: === Iteration 473 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:22:31,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:22:31,258 INFO L82 PathProgramCache]: Analyzing trace with hash -375131135, now seen corresponding path program 464 times [2021-03-11 14:22:31,258 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:22:31,258 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [816667998] [2021-03-11 14:22:31,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:22:31,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:22:31,270 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:22:31,271 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:22:31,271 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:22:31,272 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:22:31,281 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:22:31,282 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:22:31,297 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:22:31,298 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:22:31,320 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:22:31,320 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:22:31,350 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:22:31,351 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:22:31,388 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:22:31,389 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:22:31,434 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:22:31,435 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:22:31,490 INFO L142 QuantifierPusher]: treesize reduction 45, result has 59.1 percent of original size [2021-03-11 14:22:31,491 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:22:31,597 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:22:31,598 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:22:31,671 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:22:31,672 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:22:31,737 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:22:31,738 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [816667998] [2021-03-11 14:22:31,738 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:22:31,738 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:22:31,738 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [786343433] [2021-03-11 14:22:31,738 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:22:31,738 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:22:31,738 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:22:31,738 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:22:31,738 INFO L87 Difference]: Start difference. First operand 3127 states and 15577 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:22:32,022 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 39 [2021-03-11 14:22:32,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:22:32,053 INFO L93 Difference]: Finished difference Result 5993 states and 26748 transitions. [2021-03-11 14:22:32,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:22:32,055 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:22:32,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:22:32,068 INFO L225 Difference]: With dead ends: 5993 [2021-03-11 14:22:32,068 INFO L226 Difference]: Without dead ends: 5970 [2021-03-11 14:22:32,068 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 553.4ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:22:32,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5970 states. [2021-03-11 14:22:32,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5970 to 3121. [2021-03-11 14:22:32,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3121 states, 3120 states have (on average 4.987179487179487) internal successors, (15560), 3120 states have internal predecessors, (15560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:22:32,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3121 states to 3121 states and 15560 transitions. [2021-03-11 14:22:32,209 INFO L78 Accepts]: Start accepts. Automaton has 3121 states and 15560 transitions. Word has length 31 [2021-03-11 14:22:32,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:22:32,210 INFO L480 AbstractCegarLoop]: Abstraction has 3121 states and 15560 transitions. [2021-03-11 14:22:32,210 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:22:32,210 INFO L276 IsEmpty]: Start isEmpty. Operand 3121 states and 15560 transitions. [2021-03-11 14:22:32,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:22:32,215 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:22:32,215 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:22:32,215 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable472 [2021-03-11 14:22:32,215 INFO L428 AbstractCegarLoop]: === Iteration 474 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:22:32,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:22:32,215 INFO L82 PathProgramCache]: Analyzing trace with hash -803093391, now seen corresponding path program 465 times [2021-03-11 14:22:32,215 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:22:32,215 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [293519837] [2021-03-11 14:22:32,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:22:32,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:22:32,227 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:22:32,228 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:22:32,229 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:22:32,229 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:22:32,239 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:22:32,240 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:22:32,257 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:22:32,258 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:22:32,282 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:22:32,283 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:22:32,315 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:22:32,316 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:22:32,356 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:22:32,357 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:22:32,406 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:22:32,407 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:22:32,464 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:22:32,465 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:22:32,535 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:22:32,536 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:22:32,616 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:22:32,617 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:22:32,689 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:22:32,689 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [293519837] [2021-03-11 14:22:32,689 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:22:32,689 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:22:32,689 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [323717828] [2021-03-11 14:22:32,689 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:22:32,689 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:22:32,689 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:22:32,689 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:22:32,689 INFO L87 Difference]: Start difference. First operand 3121 states and 15560 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:22:33,065 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 41 [2021-03-11 14:22:33,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:22:33,091 INFO L93 Difference]: Finished difference Result 6000 states and 26764 transitions. [2021-03-11 14:22:33,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:22:33,093 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:22:33,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:22:33,106 INFO L225 Difference]: With dead ends: 6000 [2021-03-11 14:22:33,106 INFO L226 Difference]: Without dead ends: 5980 [2021-03-11 14:22:33,106 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 563.7ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:22:33,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5980 states. [2021-03-11 14:22:33,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5980 to 3129. [2021-03-11 14:22:33,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3129 states, 3128 states have (on average 4.979219948849105) internal successors, (15575), 3128 states have internal predecessors, (15575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:22:33,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3129 states to 3129 states and 15575 transitions. [2021-03-11 14:22:33,249 INFO L78 Accepts]: Start accepts. Automaton has 3129 states and 15575 transitions. Word has length 31 [2021-03-11 14:22:33,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:22:33,249 INFO L480 AbstractCegarLoop]: Abstraction has 3129 states and 15575 transitions. [2021-03-11 14:22:33,249 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:22:33,249 INFO L276 IsEmpty]: Start isEmpty. Operand 3129 states and 15575 transitions. [2021-03-11 14:22:33,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:22:33,254 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:22:33,254 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:22:33,254 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable473 [2021-03-11 14:22:33,254 INFO L428 AbstractCegarLoop]: === Iteration 475 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:22:33,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:22:33,254 INFO L82 PathProgramCache]: Analyzing trace with hash 111988097, now seen corresponding path program 466 times [2021-03-11 14:22:33,254 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:22:33,254 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [106403036] [2021-03-11 14:22:33,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:22:33,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:22:33,266 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:22:33,267 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:22:33,268 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:22:33,268 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:22:33,278 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:22:33,279 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:22:33,296 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:22:33,297 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:22:33,321 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:22:33,322 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:22:33,355 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:22:33,356 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:22:33,396 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:22:33,397 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:22:33,447 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:22:33,448 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:22:33,506 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:22:33,507 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:22:33,578 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:22:33,579 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:22:33,660 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:22:33,661 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:22:33,733 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:22:33,733 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [106403036] [2021-03-11 14:22:33,733 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:22:33,733 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:22:33,733 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1796470375] [2021-03-11 14:22:33,733 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:22:33,733 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:22:33,733 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:22:33,733 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:22:33,733 INFO L87 Difference]: Start difference. First operand 3129 states and 15575 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:22:34,105 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 41 [2021-03-11 14:22:34,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:22:34,139 INFO L93 Difference]: Finished difference Result 5999 states and 26754 transitions. [2021-03-11 14:22:34,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:22:34,141 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:22:34,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:22:34,155 INFO L225 Difference]: With dead ends: 5999 [2021-03-11 14:22:34,155 INFO L226 Difference]: Without dead ends: 5972 [2021-03-11 14:22:34,155 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 568.0ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:22:34,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5972 states. [2021-03-11 14:22:34,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5972 to 3121. [2021-03-11 14:22:34,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3121 states, 3120 states have (on average 4.98525641025641) internal successors, (15554), 3120 states have internal predecessors, (15554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:22:34,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3121 states to 3121 states and 15554 transitions. [2021-03-11 14:22:34,297 INFO L78 Accepts]: Start accepts. Automaton has 3121 states and 15554 transitions. Word has length 31 [2021-03-11 14:22:34,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:22:34,297 INFO L480 AbstractCegarLoop]: Abstraction has 3121 states and 15554 transitions. [2021-03-11 14:22:34,297 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:22:34,297 INFO L276 IsEmpty]: Start isEmpty. Operand 3121 states and 15554 transitions. [2021-03-11 14:22:34,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:22:34,302 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:22:34,302 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:22:34,303 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable474 [2021-03-11 14:22:34,303 INFO L428 AbstractCegarLoop]: === Iteration 476 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:22:34,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:22:34,303 INFO L82 PathProgramCache]: Analyzing trace with hash -2072376079, now seen corresponding path program 467 times [2021-03-11 14:22:34,303 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:22:34,303 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [599342957] [2021-03-11 14:22:34,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:22:34,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:22:34,314 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:22:34,315 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:22:34,316 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:22:34,317 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:22:34,327 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:22:34,327 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:22:34,344 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:22:34,345 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:22:34,370 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:22:34,371 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:22:34,404 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:22:34,405 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:22:34,445 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:22:34,446 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:22:34,495 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:22:34,496 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:22:34,555 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:22:34,556 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:22:34,621 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:22:34,622 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:22:34,703 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:22:34,704 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:22:34,772 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:22:34,773 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [599342957] [2021-03-11 14:22:34,773 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:22:34,773 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:22:34,773 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [484622518] [2021-03-11 14:22:34,773 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:22:34,773 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:22:34,773 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:22:34,773 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:22:34,773 INFO L87 Difference]: Start difference. First operand 3121 states and 15554 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:22:35,054 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 39 [2021-03-11 14:22:35,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:22:35,080 INFO L93 Difference]: Finished difference Result 5992 states and 26740 transitions. [2021-03-11 14:22:35,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:22:35,082 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:22:35,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:22:35,095 INFO L225 Difference]: With dead ends: 5992 [2021-03-11 14:22:35,095 INFO L226 Difference]: Without dead ends: 5975 [2021-03-11 14:22:35,095 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 540.1ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:22:35,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5975 states. [2021-03-11 14:22:35,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5975 to 3127. [2021-03-11 14:22:35,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3127 states, 3126 states have (on average 4.979206653870762) internal successors, (15565), 3126 states have internal predecessors, (15565), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:22:35,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3127 states to 3127 states and 15565 transitions. [2021-03-11 14:22:35,229 INFO L78 Accepts]: Start accepts. Automaton has 3127 states and 15565 transitions. Word has length 31 [2021-03-11 14:22:35,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:22:35,229 INFO L480 AbstractCegarLoop]: Abstraction has 3127 states and 15565 transitions. [2021-03-11 14:22:35,229 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:22:35,229 INFO L276 IsEmpty]: Start isEmpty. Operand 3127 states and 15565 transitions. [2021-03-11 14:22:35,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:22:35,234 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:22:35,234 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:22:35,234 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable475 [2021-03-11 14:22:35,234 INFO L428 AbstractCegarLoop]: === Iteration 477 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:22:35,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:22:35,234 INFO L82 PathProgramCache]: Analyzing trace with hash -312323139, now seen corresponding path program 468 times [2021-03-11 14:22:35,234 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:22:35,234 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [102951967] [2021-03-11 14:22:35,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:22:35,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:22:35,246 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:22:35,247 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:22:35,247 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:22:35,248 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:22:35,257 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:22:35,258 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:22:35,273 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:22:35,274 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:22:35,296 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:22:35,297 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:22:35,327 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:22:35,328 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:22:35,365 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:22:35,366 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:22:35,412 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:22:35,413 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:22:35,467 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:22:35,468 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:22:35,529 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:22:35,530 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:22:35,604 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:22:35,605 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:22:35,670 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:22:35,670 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [102951967] [2021-03-11 14:22:35,670 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:22:35,671 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:22:35,671 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [653294118] [2021-03-11 14:22:35,671 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:22:35,671 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:22:35,671 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:22:35,671 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:22:35,671 INFO L87 Difference]: Start difference. First operand 3127 states and 15565 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:22:35,961 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 41 [2021-03-11 14:22:35,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:22:35,990 INFO L93 Difference]: Finished difference Result 5994 states and 26738 transitions. [2021-03-11 14:22:35,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:22:35,992 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:22:35,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:22:36,005 INFO L225 Difference]: With dead ends: 5994 [2021-03-11 14:22:36,005 INFO L226 Difference]: Without dead ends: 5963 [2021-03-11 14:22:36,005 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 517.1ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:22:36,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5963 states. [2021-03-11 14:22:36,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5963 to 3115. [2021-03-11 14:22:36,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3115 states, 3114 states have (on average 4.989402697495183) internal successors, (15537), 3114 states have internal predecessors, (15537), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:22:36,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3115 states to 3115 states and 15537 transitions. [2021-03-11 14:22:36,143 INFO L78 Accepts]: Start accepts. Automaton has 3115 states and 15537 transitions. Word has length 31 [2021-03-11 14:22:36,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:22:36,143 INFO L480 AbstractCegarLoop]: Abstraction has 3115 states and 15537 transitions. [2021-03-11 14:22:36,143 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:22:36,143 INFO L276 IsEmpty]: Start isEmpty. Operand 3115 states and 15537 transitions. [2021-03-11 14:22:36,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:22:36,148 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:22:36,148 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:22:36,148 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable476 [2021-03-11 14:22:36,148 INFO L428 AbstractCegarLoop]: === Iteration 478 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:22:36,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:22:36,148 INFO L82 PathProgramCache]: Analyzing trace with hash -223217347, now seen corresponding path program 469 times [2021-03-11 14:22:36,148 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:22:36,148 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [161623892] [2021-03-11 14:22:36,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:22:36,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:22:36,160 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:22:36,160 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:22:36,161 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:22:36,162 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:22:36,171 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:22:36,172 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:22:36,187 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:22:36,188 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:22:36,210 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:22:36,211 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:22:36,241 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:22:36,242 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:22:36,279 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:22:36,279 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:22:36,325 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:22:36,325 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:22:36,380 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:22:36,381 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:22:36,443 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:22:36,444 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:22:36,518 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:22:36,519 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:22:36,584 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:22:36,585 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [161623892] [2021-03-11 14:22:36,585 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:22:36,585 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:22:36,585 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1130185889] [2021-03-11 14:22:36,585 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:22:36,585 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:22:36,585 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:22:36,585 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:22:36,585 INFO L87 Difference]: Start difference. First operand 3115 states and 15537 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:22:36,981 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 41 [2021-03-11 14:22:37,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:22:37,005 INFO L93 Difference]: Finished difference Result 6002 states and 26771 transitions. [2021-03-11 14:22:37,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:22:37,006 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:22:37,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:22:37,019 INFO L225 Difference]: With dead ends: 6002 [2021-03-11 14:22:37,019 INFO L226 Difference]: Without dead ends: 5982 [2021-03-11 14:22:37,020 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 518.1ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:22:37,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5982 states. [2021-03-11 14:22:37,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5982 to 3129. [2021-03-11 14:22:37,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3129 states, 3128 states have (on average 4.9798593350383635) internal successors, (15577), 3128 states have internal predecessors, (15577), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:22:37,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3129 states to 3129 states and 15577 transitions. [2021-03-11 14:22:37,153 INFO L78 Accepts]: Start accepts. Automaton has 3129 states and 15577 transitions. Word has length 31 [2021-03-11 14:22:37,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:22:37,153 INFO L480 AbstractCegarLoop]: Abstraction has 3129 states and 15577 transitions. [2021-03-11 14:22:37,153 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:22:37,153 INFO L276 IsEmpty]: Start isEmpty. Operand 3129 states and 15577 transitions. [2021-03-11 14:22:37,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:22:37,158 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:22:37,158 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:22:37,158 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable477 [2021-03-11 14:22:37,158 INFO L428 AbstractCegarLoop]: === Iteration 479 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:22:37,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:22:37,159 INFO L82 PathProgramCache]: Analyzing trace with hash -1913160251, now seen corresponding path program 470 times [2021-03-11 14:22:37,159 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:22:37,159 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2074871956] [2021-03-11 14:22:37,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:22:37,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:22:37,170 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:22:37,171 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:22:37,172 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:22:37,172 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:22:37,181 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:22:37,182 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:22:37,197 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:22:37,198 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:22:37,220 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:22:37,221 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:22:37,251 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:22:37,252 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:22:37,289 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:22:37,290 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:22:37,337 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:22:37,338 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:22:37,395 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:22:37,396 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:22:37,461 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:22:37,462 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:22:37,539 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:22:37,540 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:22:37,608 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:22:37,608 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2074871956] [2021-03-11 14:22:37,608 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:22:37,608 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:22:37,608 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1126931622] [2021-03-11 14:22:37,608 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:22:37,608 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:22:37,608 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:22:37,608 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:22:37,608 INFO L87 Difference]: Start difference. First operand 3129 states and 15577 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:22:37,940 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 39 [2021-03-11 14:22:37,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:22:37,968 INFO L93 Difference]: Finished difference Result 6000 states and 26760 transitions. [2021-03-11 14:22:37,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:22:37,970 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:22:37,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:22:37,983 INFO L225 Difference]: With dead ends: 6000 [2021-03-11 14:22:37,983 INFO L226 Difference]: Without dead ends: 5975 [2021-03-11 14:22:37,983 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 523.4ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:22:38,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5975 states. [2021-03-11 14:22:38,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5975 to 3122. [2021-03-11 14:22:38,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3122 states, 3121 states have (on average 4.984620314001923) internal successors, (15557), 3121 states have internal predecessors, (15557), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:22:38,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3122 states to 3122 states and 15557 transitions. [2021-03-11 14:22:38,117 INFO L78 Accepts]: Start accepts. Automaton has 3122 states and 15557 transitions. Word has length 31 [2021-03-11 14:22:38,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:22:38,117 INFO L480 AbstractCegarLoop]: Abstraction has 3122 states and 15557 transitions. [2021-03-11 14:22:38,117 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:22:38,118 INFO L276 IsEmpty]: Start isEmpty. Operand 3122 states and 15557 transitions. [2021-03-11 14:22:38,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:22:38,122 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:22:38,122 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:22:38,122 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable478 [2021-03-11 14:22:38,122 INFO L428 AbstractCegarLoop]: === Iteration 480 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:22:38,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:22:38,123 INFO L82 PathProgramCache]: Analyzing trace with hash -1071839819, now seen corresponding path program 471 times [2021-03-11 14:22:38,123 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:22:38,123 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [179633239] [2021-03-11 14:22:38,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:22:38,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:22:38,134 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:22:38,135 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:22:38,136 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:22:38,136 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:22:38,145 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:22:38,146 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:22:38,161 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:22:38,162 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:22:38,185 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:22:38,186 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:22:38,216 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:22:38,217 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:22:38,254 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:22:38,255 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:22:38,302 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:22:38,303 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:22:38,358 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:22:38,359 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:22:38,423 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:22:38,424 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:22:38,498 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:22:38,498 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:22:38,564 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:22:38,565 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [179633239] [2021-03-11 14:22:38,565 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:22:38,565 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:22:38,565 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [223812971] [2021-03-11 14:22:38,565 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:22:38,565 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:22:38,565 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:22:38,565 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:22:38,565 INFO L87 Difference]: Start difference. First operand 3122 states and 15557 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:22:38,969 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 42 [2021-03-11 14:22:38,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:22:38,992 INFO L93 Difference]: Finished difference Result 6004 states and 26769 transitions. [2021-03-11 14:22:38,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:22:38,994 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:22:38,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:22:39,007 INFO L225 Difference]: With dead ends: 6004 [2021-03-11 14:22:39,007 INFO L226 Difference]: Without dead ends: 5984 [2021-03-11 14:22:39,007 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 524.3ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:22:39,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5984 states. [2021-03-11 14:22:39,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5984 to 3130. [2021-03-11 14:22:39,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3130 states, 3129 states have (on average 4.9766698625759025) internal successors, (15572), 3129 states have internal predecessors, (15572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:22:39,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3130 states to 3130 states and 15572 transitions. [2021-03-11 14:22:39,141 INFO L78 Accepts]: Start accepts. Automaton has 3130 states and 15572 transitions. Word has length 31 [2021-03-11 14:22:39,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:22:39,142 INFO L480 AbstractCegarLoop]: Abstraction has 3130 states and 15572 transitions. [2021-03-11 14:22:39,142 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:22:39,142 INFO L276 IsEmpty]: Start isEmpty. Operand 3130 states and 15572 transitions. [2021-03-11 14:22:39,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:22:39,146 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:22:39,146 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:22:39,146 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable479 [2021-03-11 14:22:39,146 INFO L428 AbstractCegarLoop]: === Iteration 481 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:22:39,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:22:39,147 INFO L82 PathProgramCache]: Analyzing trace with hash -156758331, now seen corresponding path program 472 times [2021-03-11 14:22:39,147 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:22:39,147 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1888674878] [2021-03-11 14:22:39,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:22:39,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:22:39,159 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:22:39,159 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:22:39,160 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:22:39,161 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:22:39,170 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:22:39,171 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:22:39,187 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:22:39,188 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:22:39,211 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:22:39,212 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:22:39,243 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:22:39,244 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:22:39,282 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:22:39,283 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:22:39,329 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:22:39,330 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:22:39,386 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:22:39,387 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:22:39,451 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:22:39,452 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:22:39,527 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:22:39,528 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:22:39,595 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:22:39,595 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1888674878] [2021-03-11 14:22:39,595 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:22:39,595 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:22:39,595 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654087738] [2021-03-11 14:22:39,595 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:22:39,595 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:22:39,595 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:22:39,595 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:22:39,595 INFO L87 Difference]: Start difference. First operand 3130 states and 15572 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:22:39,880 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 41 [2021-03-11 14:22:39,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:22:39,909 INFO L93 Difference]: Finished difference Result 6003 states and 26759 transitions. [2021-03-11 14:22:39,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:22:39,911 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:22:39,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:22:39,924 INFO L225 Difference]: With dead ends: 6003 [2021-03-11 14:22:39,924 INFO L226 Difference]: Without dead ends: 5976 [2021-03-11 14:22:39,924 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 529.0ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:22:40,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5976 states. [2021-03-11 14:22:40,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5976 to 3122. [2021-03-11 14:22:40,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3122 states, 3121 states have (on average 4.982377443127203) internal successors, (15550), 3121 states have internal predecessors, (15550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:22:40,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3122 states to 3122 states and 15550 transitions. [2021-03-11 14:22:40,059 INFO L78 Accepts]: Start accepts. Automaton has 3122 states and 15550 transitions. Word has length 31 [2021-03-11 14:22:40,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:22:40,059 INFO L480 AbstractCegarLoop]: Abstraction has 3122 states and 15550 transitions. [2021-03-11 14:22:40,059 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:22:40,059 INFO L276 IsEmpty]: Start isEmpty. Operand 3122 states and 15550 transitions. [2021-03-11 14:22:40,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:22:40,064 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:22:40,064 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:22:40,064 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable480 [2021-03-11 14:22:40,064 INFO L428 AbstractCegarLoop]: === Iteration 482 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:22:40,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:22:40,065 INFO L82 PathProgramCache]: Analyzing trace with hash 684562101, now seen corresponding path program 473 times [2021-03-11 14:22:40,065 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:22:40,065 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [206808243] [2021-03-11 14:22:40,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:22:40,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:22:40,077 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:22:40,078 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:22:40,079 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:22:40,079 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:22:40,088 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:22:40,089 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:22:40,105 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:22:40,106 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:22:40,129 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:22:40,130 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:22:40,160 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:22:40,161 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:22:40,199 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:22:40,200 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:22:40,246 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:22:40,247 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:22:40,303 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:22:40,304 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:22:40,368 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:22:40,369 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:22:40,445 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:22:40,446 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:22:40,513 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:22:40,514 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [206808243] [2021-03-11 14:22:40,514 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:22:40,514 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:22:40,514 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010567502] [2021-03-11 14:22:40,514 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:22:40,514 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:22:40,514 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:22:40,514 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:22:40,514 INFO L87 Difference]: Start difference. First operand 3122 states and 15550 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:22:40,891 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 39 [2021-03-11 14:22:40,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:22:40,918 INFO L93 Difference]: Finished difference Result 5999 states and 26751 transitions. [2021-03-11 14:22:40,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:22:40,920 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:22:40,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:22:40,933 INFO L225 Difference]: With dead ends: 5999 [2021-03-11 14:22:40,933 INFO L226 Difference]: Without dead ends: 5981 [2021-03-11 14:22:40,933 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 525.2ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:22:41,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5981 states. [2021-03-11 14:22:41,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5981 to 3129. [2021-03-11 14:22:41,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3129 states, 3128 states have (on average 4.975383631713555) internal successors, (15563), 3128 states have internal predecessors, (15563), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:22:41,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3129 states to 3129 states and 15563 transitions. [2021-03-11 14:22:41,069 INFO L78 Accepts]: Start accepts. Automaton has 3129 states and 15563 transitions. Word has length 31 [2021-03-11 14:22:41,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:22:41,069 INFO L480 AbstractCegarLoop]: Abstraction has 3129 states and 15563 transitions. [2021-03-11 14:22:41,069 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:22:41,069 INFO L276 IsEmpty]: Start isEmpty. Operand 3129 states and 15563 transitions. [2021-03-11 14:22:41,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:22:41,073 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:22:41,073 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:22:41,074 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable481 [2021-03-11 14:22:41,074 INFO L428 AbstractCegarLoop]: === Iteration 483 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:22:41,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:22:41,074 INFO L82 PathProgramCache]: Analyzing trace with hash -1005380803, now seen corresponding path program 474 times [2021-03-11 14:22:41,074 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:22:41,074 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [21271008] [2021-03-11 14:22:41,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:22:41,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:22:41,086 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:22:41,086 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:22:41,087 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:22:41,088 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:22:41,097 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:22:41,098 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:22:41,113 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:22:41,114 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:22:41,138 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:22:41,139 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:22:41,171 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:22:41,172 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:22:41,210 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:22:41,211 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:22:41,258 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:22:41,259 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:22:41,315 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:22:41,316 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:22:41,381 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:22:41,382 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:22:41,457 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:22:41,458 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:22:41,525 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:22:41,525 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [21271008] [2021-03-11 14:22:41,525 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:22:41,525 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:22:41,525 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557935958] [2021-03-11 14:22:41,525 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:22:41,525 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:22:41,526 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:22:41,526 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:22:41,526 INFO L87 Difference]: Start difference. First operand 3129 states and 15563 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:22:41,853 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 41 [2021-03-11 14:22:41,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:22:41,888 INFO L93 Difference]: Finished difference Result 6000 states and 26746 transitions. [2021-03-11 14:22:41,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:22:41,889 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:22:41,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:22:41,903 INFO L225 Difference]: With dead ends: 6000 [2021-03-11 14:22:41,903 INFO L226 Difference]: Without dead ends: 5967 [2021-03-11 14:22:41,903 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 533.1ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:22:41,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5967 states. [2021-03-11 14:22:42,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5967 to 3115. [2021-03-11 14:22:42,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3115 states, 3114 states have (on average 4.98747591522158) internal successors, (15531), 3114 states have internal predecessors, (15531), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:22:42,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3115 states to 3115 states and 15531 transitions. [2021-03-11 14:22:42,036 INFO L78 Accepts]: Start accepts. Automaton has 3115 states and 15531 transitions. Word has length 31 [2021-03-11 14:22:42,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:22:42,036 INFO L480 AbstractCegarLoop]: Abstraction has 3115 states and 15531 transitions. [2021-03-11 14:22:42,036 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:22:42,037 INFO L276 IsEmpty]: Start isEmpty. Operand 3115 states and 15531 transitions. [2021-03-11 14:22:42,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:22:42,041 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:22:42,041 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:22:42,041 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable482 [2021-03-11 14:22:42,041 INFO L428 AbstractCegarLoop]: === Iteration 484 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:22:42,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:22:42,042 INFO L82 PathProgramCache]: Analyzing trace with hash -1761246463, now seen corresponding path program 475 times [2021-03-11 14:22:42,042 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:22:42,042 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1477098274] [2021-03-11 14:22:42,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:22:42,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:22:42,053 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:22:42,054 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:22:42,055 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:22:42,055 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:22:42,065 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:22:42,066 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:22:42,082 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:22:42,083 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:22:42,106 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:22:42,107 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:22:42,140 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:22:42,141 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:22:42,180 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:22:42,181 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:22:42,228 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:22:42,229 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:22:42,286 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:22:42,287 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:22:42,358 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:22:42,359 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:22:42,436 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:22:42,437 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:22:42,509 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:22:42,509 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1477098274] [2021-03-11 14:22:42,509 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:22:42,509 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:22:42,509 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1053252951] [2021-03-11 14:22:42,509 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:22:42,509 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:22:42,509 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:22:42,510 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:22:42,510 INFO L87 Difference]: Start difference. First operand 3115 states and 15531 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:22:42,875 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 39 [2021-03-11 14:22:42,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:22:42,901 INFO L93 Difference]: Finished difference Result 5988 states and 26731 transitions. [2021-03-11 14:22:42,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:22:42,903 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:22:42,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:22:42,916 INFO L225 Difference]: With dead ends: 5988 [2021-03-11 14:22:42,916 INFO L226 Difference]: Without dead ends: 5971 [2021-03-11 14:22:42,916 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 544.4ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:22:42,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5971 states. [2021-03-11 14:22:43,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5971 to 3127. [2021-03-11 14:22:43,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3127 states, 3126 states have (on average 4.979206653870762) internal successors, (15565), 3126 states have internal predecessors, (15565), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:22:43,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3127 states to 3127 states and 15565 transitions. [2021-03-11 14:22:43,052 INFO L78 Accepts]: Start accepts. Automaton has 3127 states and 15565 transitions. Word has length 31 [2021-03-11 14:22:43,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:22:43,052 INFO L480 AbstractCegarLoop]: Abstraction has 3127 states and 15565 transitions. [2021-03-11 14:22:43,052 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:22:43,052 INFO L276 IsEmpty]: Start isEmpty. Operand 3127 states and 15565 transitions. [2021-03-11 14:22:43,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:22:43,057 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:22:43,057 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:22:43,057 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable483 [2021-03-11 14:22:43,057 INFO L428 AbstractCegarLoop]: === Iteration 485 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:22:43,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:22:43,057 INFO L82 PathProgramCache]: Analyzing trace with hash 1688749381, now seen corresponding path program 476 times [2021-03-11 14:22:43,057 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:22:43,057 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1931101873] [2021-03-11 14:22:43,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:22:43,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:22:43,069 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:22:43,070 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:22:43,071 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:22:43,071 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:22:43,081 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:22:43,081 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:22:43,098 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:22:43,099 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:22:43,122 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:22:43,123 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:22:43,155 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:22:43,156 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:22:43,194 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:22:43,195 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:22:43,242 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:22:43,243 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:22:43,298 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:22:43,299 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:22:43,364 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:22:43,365 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:22:43,442 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:22:43,443 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:22:43,513 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:22:43,513 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1931101873] [2021-03-11 14:22:43,513 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:22:43,513 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:22:43,513 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1203969190] [2021-03-11 14:22:43,513 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:22:43,513 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:22:43,513 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:22:43,513 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:22:43,513 INFO L87 Difference]: Start difference. First operand 3127 states and 15565 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:22:43,859 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 39 [2021-03-11 14:22:43,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:22:43,889 INFO L93 Difference]: Finished difference Result 5989 states and 26727 transitions. [2021-03-11 14:22:43,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:22:43,890 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:22:43,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:22:43,903 INFO L225 Difference]: With dead ends: 5989 [2021-03-11 14:22:43,903 INFO L226 Difference]: Without dead ends: 5965 [2021-03-11 14:22:43,904 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 530.7ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:22:43,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5965 states. [2021-03-11 14:22:44,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5965 to 3121. [2021-03-11 14:22:44,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3121 states, 3120 states have (on average 4.983333333333333) internal successors, (15548), 3120 states have internal predecessors, (15548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:22:44,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3121 states to 3121 states and 15548 transitions. [2021-03-11 14:22:44,039 INFO L78 Accepts]: Start accepts. Automaton has 3121 states and 15548 transitions. Word has length 31 [2021-03-11 14:22:44,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:22:44,039 INFO L480 AbstractCegarLoop]: Abstraction has 3121 states and 15548 transitions. [2021-03-11 14:22:44,039 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:22:44,039 INFO L276 IsEmpty]: Start isEmpty. Operand 3121 states and 15548 transitions. [2021-03-11 14:22:44,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:22:44,044 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:22:44,044 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:22:44,044 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable484 [2021-03-11 14:22:44,044 INFO L428 AbstractCegarLoop]: === Iteration 486 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:22:44,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:22:44,044 INFO L82 PathProgramCache]: Analyzing trace with hash 1685098361, now seen corresponding path program 477 times [2021-03-11 14:22:44,044 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:22:44,044 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1945078510] [2021-03-11 14:22:44,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:22:44,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:22:44,056 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:22:44,056 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:22:44,057 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:22:44,058 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:22:44,068 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:22:44,068 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:22:44,085 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:22:44,085 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:22:44,109 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:22:44,109 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:22:44,145 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:22:44,145 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:22:44,184 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:22:44,185 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:22:44,232 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:22:44,232 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:22:44,288 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:22:44,289 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:22:44,353 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:22:44,354 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:22:44,429 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:22:44,430 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:22:44,498 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:22:44,498 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1945078510] [2021-03-11 14:22:44,498 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:22:44,498 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:22:44,498 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [202302012] [2021-03-11 14:22:44,498 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:22:44,498 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:22:44,498 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:22:44,498 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:22:44,498 INFO L87 Difference]: Start difference. First operand 3121 states and 15548 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:22:44,826 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 39 [2021-03-11 14:22:44,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:22:44,854 INFO L93 Difference]: Finished difference Result 5989 states and 26727 transitions. [2021-03-11 14:22:44,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:22:44,856 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:22:44,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:22:44,869 INFO L225 Difference]: With dead ends: 5989 [2021-03-11 14:22:44,869 INFO L226 Difference]: Without dead ends: 5972 [2021-03-11 14:22:44,869 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 533.3ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:22:44,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5972 states. [2021-03-11 14:22:44,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5972 to 3127. [2021-03-11 14:22:44,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3127 states, 3126 states have (on average 4.977287268074217) internal successors, (15559), 3126 states have internal predecessors, (15559), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:22:45,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3127 states to 3127 states and 15559 transitions. [2021-03-11 14:22:45,002 INFO L78 Accepts]: Start accepts. Automaton has 3127 states and 15559 transitions. Word has length 31 [2021-03-11 14:22:45,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:22:45,002 INFO L480 AbstractCegarLoop]: Abstraction has 3127 states and 15559 transitions. [2021-03-11 14:22:45,002 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:22:45,002 INFO L276 IsEmpty]: Start isEmpty. Operand 3127 states and 15559 transitions. [2021-03-11 14:22:45,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:22:45,007 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:22:45,007 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:22:45,007 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable485 [2021-03-11 14:22:45,007 INFO L428 AbstractCegarLoop]: === Iteration 487 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:22:45,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:22:45,007 INFO L82 PathProgramCache]: Analyzing trace with hash -849815995, now seen corresponding path program 478 times [2021-03-11 14:22:45,007 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:22:45,007 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1643986255] [2021-03-11 14:22:45,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:22:45,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:22:45,019 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:22:45,019 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:22:45,020 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:22:45,021 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:22:45,030 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:22:45,031 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:22:45,047 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:22:45,047 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:22:45,071 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:22:45,072 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:22:45,103 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:22:45,104 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:22:45,143 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:22:45,144 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:22:45,193 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:22:45,194 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:22:45,250 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:22:45,251 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:22:45,314 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:22:45,315 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:22:45,391 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:22:45,392 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:22:45,460 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:22:45,460 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1643986255] [2021-03-11 14:22:45,460 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:22:45,460 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:22:45,460 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [343899518] [2021-03-11 14:22:45,461 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:22:45,461 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:22:45,461 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:22:45,461 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:22:45,461 INFO L87 Difference]: Start difference. First operand 3127 states and 15559 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:22:45,771 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 41 [2021-03-11 14:22:45,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:22:45,802 INFO L93 Difference]: Finished difference Result 5991 states and 26725 transitions. [2021-03-11 14:22:45,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:22:45,804 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:22:45,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:22:45,817 INFO L225 Difference]: With dead ends: 5991 [2021-03-11 14:22:45,817 INFO L226 Difference]: Without dead ends: 5966 [2021-03-11 14:22:45,817 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 536.0ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:22:45,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5966 states. [2021-03-11 14:22:45,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5966 to 3121. [2021-03-11 14:22:45,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3121 states, 3120 states have (on average 4.981410256410256) internal successors, (15542), 3120 states have internal predecessors, (15542), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:22:45,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3121 states to 3121 states and 15542 transitions. [2021-03-11 14:22:45,952 INFO L78 Accepts]: Start accepts. Automaton has 3121 states and 15542 transitions. Word has length 31 [2021-03-11 14:22:45,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:22:45,952 INFO L480 AbstractCegarLoop]: Abstraction has 3121 states and 15542 transitions. [2021-03-11 14:22:45,952 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:22:45,952 INFO L276 IsEmpty]: Start isEmpty. Operand 3121 states and 15542 transitions. [2021-03-11 14:22:45,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:22:45,957 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:22:45,957 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:22:45,957 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable486 [2021-03-11 14:22:45,957 INFO L428 AbstractCegarLoop]: === Iteration 488 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:22:45,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:22:45,957 INFO L82 PathProgramCache]: Analyzing trace with hash 415815673, now seen corresponding path program 479 times [2021-03-11 14:22:45,958 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:22:45,958 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [651103714] [2021-03-11 14:22:45,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:22:45,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:22:45,969 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:22:45,970 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:22:45,971 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:22:45,972 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:22:45,981 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:22:45,982 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:22:45,998 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:22:45,999 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:22:46,024 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:22:46,025 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:22:46,058 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:22:46,059 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:22:46,101 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:22:46,102 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:22:46,153 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:22:46,154 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:22:46,210 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:22:46,211 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:22:46,279 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:22:46,280 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:22:46,359 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:22:46,360 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:22:46,428 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:22:46,429 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [651103714] [2021-03-11 14:22:46,429 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:22:46,429 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:22:46,429 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1728628913] [2021-03-11 14:22:46,429 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:22:46,429 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:22:46,429 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:22:46,429 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:22:46,429 INFO L87 Difference]: Start difference. First operand 3121 states and 15542 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:22:46,814 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 39 [2021-03-11 14:22:46,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:22:46,843 INFO L93 Difference]: Finished difference Result 5992 states and 26728 transitions. [2021-03-11 14:22:46,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:22:46,844 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:22:46,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:22:46,857 INFO L225 Difference]: With dead ends: 5992 [2021-03-11 14:22:46,858 INFO L226 Difference]: Without dead ends: 5974 [2021-03-11 14:22:46,858 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 547.5ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:22:46,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5974 states. [2021-03-11 14:22:46,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5974 to 3128. [2021-03-11 14:22:46,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3128 states, 3127 states have (on average 4.974416373520946) internal successors, (15555), 3127 states have internal predecessors, (15555), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:22:46,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3128 states to 3128 states and 15555 transitions. [2021-03-11 14:22:46,994 INFO L78 Accepts]: Start accepts. Automaton has 3128 states and 15555 transitions. Word has length 31 [2021-03-11 14:22:46,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:22:46,994 INFO L480 AbstractCegarLoop]: Abstraction has 3128 states and 15555 transitions. [2021-03-11 14:22:46,994 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:22:46,994 INFO L276 IsEmpty]: Start isEmpty. Operand 3128 states and 15555 transitions. [2021-03-11 14:22:47,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:22:47,000 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:22:47,000 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:22:47,000 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable487 [2021-03-11 14:22:47,000 INFO L428 AbstractCegarLoop]: === Iteration 489 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:22:47,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:22:47,000 INFO L82 PathProgramCache]: Analyzing trace with hash -1274127231, now seen corresponding path program 480 times [2021-03-11 14:22:47,000 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:22:47,000 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1316090119] [2021-03-11 14:22:47,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:22:47,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:22:47,017 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:22:47,019 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:22:47,020 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:22:47,021 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:22:47,032 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:22:47,033 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:22:47,050 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:22:47,051 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:22:47,075 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:22:47,076 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:22:47,108 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:22:47,108 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:22:47,148 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:22:47,149 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:22:47,197 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:22:47,198 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:22:47,255 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:22:47,256 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:22:47,323 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:22:47,324 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:22:47,401 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:22:47,402 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:22:47,471 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:22:47,471 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1316090119] [2021-03-11 14:22:47,471 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:22:47,471 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:22:47,472 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2142694567] [2021-03-11 14:22:47,472 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:22:47,472 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:22:47,472 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:22:47,472 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:22:47,472 INFO L87 Difference]: Start difference. First operand 3128 states and 15555 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:22:47,957 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 41 [2021-03-11 14:22:47,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:22:47,998 INFO L93 Difference]: Finished difference Result 5993 states and 26723 transitions. [2021-03-11 14:22:48,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:22:48,000 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:22:48,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:22:48,013 INFO L225 Difference]: With dead ends: 5993 [2021-03-11 14:22:48,014 INFO L226 Difference]: Without dead ends: 5950 [2021-03-11 14:22:48,014 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 549.0ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:22:48,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5950 states. [2021-03-11 14:22:48,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5950 to 3104. [2021-03-11 14:22:48,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3104 states, 3103 states have (on average 4.9970995810505965) internal successors, (15506), 3103 states have internal predecessors, (15506), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:22:48,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3104 states to 3104 states and 15506 transitions. [2021-03-11 14:22:48,149 INFO L78 Accepts]: Start accepts. Automaton has 3104 states and 15506 transitions. Word has length 31 [2021-03-11 14:22:48,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:22:48,149 INFO L480 AbstractCegarLoop]: Abstraction has 3104 states and 15506 transitions. [2021-03-11 14:22:48,149 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:22:48,149 INFO L276 IsEmpty]: Start isEmpty. Operand 3104 states and 15506 transitions. [2021-03-11 14:22:48,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:22:48,153 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:22:48,154 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:22:48,154 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable488 [2021-03-11 14:22:48,154 INFO L428 AbstractCegarLoop]: === Iteration 490 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:22:48,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:22:48,154 INFO L82 PathProgramCache]: Analyzing trace with hash 1750463425, now seen corresponding path program 481 times [2021-03-11 14:22:48,154 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:22:48,154 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [758723316] [2021-03-11 14:22:48,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:22:48,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:22:48,166 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:22:48,167 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:22:48,167 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:22:48,168 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:22:48,178 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:22:48,178 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:22:48,195 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:22:48,195 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:22:48,221 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:22:48,221 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:22:48,253 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:22:48,254 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:22:48,293 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:22:48,294 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:22:48,370 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:22:48,371 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:22:48,460 INFO L142 QuantifierPusher]: treesize reduction 45, result has 59.1 percent of original size [2021-03-11 14:22:48,461 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:22:48,563 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:22:48,564 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:22:48,639 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:22:48,640 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:22:48,710 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:22:48,710 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [758723316] [2021-03-11 14:22:48,710 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:22:48,710 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:22:48,710 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1782903780] [2021-03-11 14:22:48,711 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:22:48,711 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:22:48,711 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:22:48,711 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:22:48,711 INFO L87 Difference]: Start difference. First operand 3104 states and 15506 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:22:49,054 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 38 [2021-03-11 14:22:49,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:22:49,081 INFO L93 Difference]: Finished difference Result 6020 states and 26836 transitions. [2021-03-11 14:22:49,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:22:49,082 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:22:49,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:22:49,096 INFO L225 Difference]: With dead ends: 6020 [2021-03-11 14:22:49,096 INFO L226 Difference]: Without dead ends: 6004 [2021-03-11 14:22:49,096 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 632.3ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:22:49,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6004 states. [2021-03-11 14:22:49,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6004 to 3129. [2021-03-11 14:22:49,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3129 states, 3128 states have (on average 4.989130434782608) internal successors, (15606), 3128 states have internal predecessors, (15606), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:22:49,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3129 states to 3129 states and 15606 transitions. [2021-03-11 14:22:49,231 INFO L78 Accepts]: Start accepts. Automaton has 3129 states and 15606 transitions. Word has length 31 [2021-03-11 14:22:49,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:22:49,231 INFO L480 AbstractCegarLoop]: Abstraction has 3129 states and 15606 transitions. [2021-03-11 14:22:49,231 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:22:49,231 INFO L276 IsEmpty]: Start isEmpty. Operand 3129 states and 15606 transitions. [2021-03-11 14:22:49,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:22:49,236 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:22:49,236 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:22:49,236 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable489 [2021-03-11 14:22:49,236 INFO L428 AbstractCegarLoop]: === Iteration 491 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:22:49,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:22:49,236 INFO L82 PathProgramCache]: Analyzing trace with hash 905491973, now seen corresponding path program 482 times [2021-03-11 14:22:49,236 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:22:49,236 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [447527615] [2021-03-11 14:22:49,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:22:49,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:22:49,248 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:22:49,249 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:22:49,249 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:22:49,250 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:22:49,260 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:22:49,260 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:22:49,276 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:22:49,277 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:22:49,301 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:22:49,302 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:22:49,334 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:22:49,334 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:22:49,374 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:22:49,374 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:22:49,452 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:22:49,452 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:22:49,542 INFO L142 QuantifierPusher]: treesize reduction 45, result has 59.1 percent of original size [2021-03-11 14:22:49,542 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:22:49,646 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:22:49,646 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:22:49,726 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:22:49,727 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:22:49,796 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:22:49,796 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [447527615] [2021-03-11 14:22:49,796 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:22:49,796 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:22:49,796 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [108040407] [2021-03-11 14:22:49,797 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:22:49,797 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:22:49,797 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:22:49,797 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:22:49,797 INFO L87 Difference]: Start difference. First operand 3129 states and 15606 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:22:50,281 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 41 [2021-03-11 14:22:50,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:22:50,310 INFO L93 Difference]: Finished difference Result 6024 states and 26839 transitions. [2021-03-11 14:22:50,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:22:50,312 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:22:50,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:22:50,325 INFO L225 Difference]: With dead ends: 6024 [2021-03-11 14:22:50,326 INFO L226 Difference]: Without dead ends: 5999 [2021-03-11 14:22:50,326 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 647.6ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:22:50,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5999 states. [2021-03-11 14:22:50,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5999 to 3124. [2021-03-11 14:22:50,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3124 states, 3123 states have (on average 4.992635286583414) internal successors, (15592), 3123 states have internal predecessors, (15592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:22:50,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3124 states to 3124 states and 15592 transitions. [2021-03-11 14:22:50,461 INFO L78 Accepts]: Start accepts. Automaton has 3124 states and 15592 transitions. Word has length 31 [2021-03-11 14:22:50,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:22:50,461 INFO L480 AbstractCegarLoop]: Abstraction has 3124 states and 15592 transitions. [2021-03-11 14:22:50,461 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:22:50,461 INFO L276 IsEmpty]: Start isEmpty. Operand 3124 states and 15592 transitions. [2021-03-11 14:22:50,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:22:50,466 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:22:50,466 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:22:50,466 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable490 [2021-03-11 14:22:50,466 INFO L428 AbstractCegarLoop]: === Iteration 492 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:22:50,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:22:50,466 INFO L82 PathProgramCache]: Analyzing trace with hash 1326152189, now seen corresponding path program 483 times [2021-03-11 14:22:50,467 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:22:50,467 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [471032920] [2021-03-11 14:22:50,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:22:50,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:22:50,478 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:22:50,479 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:22:50,480 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:22:50,481 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:22:50,490 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:22:50,491 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:22:50,508 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:22:50,509 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:22:50,533 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:22:50,534 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:22:50,567 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:22:50,567 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:22:50,608 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:22:50,609 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:22:50,688 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:22:50,689 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:22:50,780 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:22:50,781 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:22:50,850 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:22:50,850 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:22:50,929 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:22:50,930 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:22:51,006 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:22:51,006 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [471032920] [2021-03-11 14:22:51,006 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:22:51,006 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:22:51,006 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1548131501] [2021-03-11 14:22:51,006 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:22:51,006 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:22:51,006 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:22:51,006 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:22:51,007 INFO L87 Difference]: Start difference. First operand 3124 states and 15592 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:22:51,489 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 38 [2021-03-11 14:22:51,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:22:51,524 INFO L93 Difference]: Finished difference Result 6017 states and 26825 transitions. [2021-03-11 14:22:51,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:22:51,526 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:22:51,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:22:51,540 INFO L225 Difference]: With dead ends: 6017 [2021-03-11 14:22:51,540 INFO L226 Difference]: Without dead ends: 6001 [2021-03-11 14:22:51,541 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 629.6ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:22:51,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6001 states. [2021-03-11 14:22:51,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6001 to 3129. [2021-03-11 14:22:51,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3129 states, 3128 states have (on average 4.987531969309463) internal successors, (15601), 3128 states have internal predecessors, (15601), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:22:51,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3129 states to 3129 states and 15601 transitions. [2021-03-11 14:22:51,684 INFO L78 Accepts]: Start accepts. Automaton has 3129 states and 15601 transitions. Word has length 31 [2021-03-11 14:22:51,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:22:51,684 INFO L480 AbstractCegarLoop]: Abstraction has 3129 states and 15601 transitions. [2021-03-11 14:22:51,684 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:22:51,684 INFO L276 IsEmpty]: Start isEmpty. Operand 3129 states and 15601 transitions. [2021-03-11 14:22:51,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:22:51,689 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:22:51,689 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:22:51,689 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable491 [2021-03-11 14:22:51,689 INFO L428 AbstractCegarLoop]: === Iteration 493 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:22:51,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:22:51,689 INFO L82 PathProgramCache]: Analyzing trace with hash -363790715, now seen corresponding path program 484 times [2021-03-11 14:22:51,690 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:22:51,690 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [111324327] [2021-03-11 14:22:51,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:22:51,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:22:51,701 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:22:51,702 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:22:51,703 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:22:51,704 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:22:51,715 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:22:51,716 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:22:51,734 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:22:51,735 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:22:51,763 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:22:51,764 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:22:51,800 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:22:51,801 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:22:51,847 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:22:51,848 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:22:51,936 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:22:51,937 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:22:52,038 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:22:52,039 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:22:52,113 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:22:52,116 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:22:52,202 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:22:52,203 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:22:52,283 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:22:52,283 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [111324327] [2021-03-11 14:22:52,283 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:22:52,283 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:22:52,283 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1444897506] [2021-03-11 14:22:52,284 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:22:52,284 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:22:52,284 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:22:52,284 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:22:52,284 INFO L87 Difference]: Start difference. First operand 3129 states and 15601 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:22:52,846 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 39 [2021-03-11 14:22:52,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:22:52,882 INFO L93 Difference]: Finished difference Result 6018 states and 26822 transitions. [2021-03-11 14:22:52,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:22:52,884 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:22:52,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:22:52,899 INFO L225 Difference]: With dead ends: 6018 [2021-03-11 14:22:52,899 INFO L226 Difference]: Without dead ends: 5996 [2021-03-11 14:22:52,899 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 714.2ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:22:52,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5996 states. [2021-03-11 14:22:53,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5996 to 3124. [2021-03-11 14:22:53,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3124 states, 3123 states have (on average 4.991034261927633) internal successors, (15587), 3123 states have internal predecessors, (15587), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:22:53,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3124 states to 3124 states and 15587 transitions. [2021-03-11 14:22:53,041 INFO L78 Accepts]: Start accepts. Automaton has 3124 states and 15587 transitions. Word has length 31 [2021-03-11 14:22:53,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:22:53,041 INFO L480 AbstractCegarLoop]: Abstraction has 3124 states and 15587 transitions. [2021-03-11 14:22:53,042 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:22:53,042 INFO L276 IsEmpty]: Start isEmpty. Operand 3124 states and 15587 transitions. [2021-03-11 14:22:53,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:22:53,047 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:22:53,047 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:22:53,047 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable492 [2021-03-11 14:22:53,047 INFO L428 AbstractCegarLoop]: === Iteration 494 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:22:53,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:22:53,047 INFO L82 PathProgramCache]: Analyzing trace with hash 56869501, now seen corresponding path program 485 times [2021-03-11 14:22:53,047 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:22:53,047 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [555644947] [2021-03-11 14:22:53,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:22:53,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:22:53,060 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:22:53,061 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:22:53,062 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:22:53,063 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:22:53,073 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:22:53,074 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:22:53,092 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:22:53,093 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:22:53,119 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:22:53,120 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:22:53,154 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:22:53,155 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:22:53,206 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:22:53,207 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:22:53,291 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:22:53,292 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:22:53,381 INFO L142 QuantifierPusher]: treesize reduction 45, result has 59.1 percent of original size [2021-03-11 14:22:53,382 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:22:53,493 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:22:53,494 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:22:53,574 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:22:53,574 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:22:53,643 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:22:53,643 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [555644947] [2021-03-11 14:22:53,643 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:22:53,643 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:22:53,643 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1825096307] [2021-03-11 14:22:53,643 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:22:53,643 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:22:53,643 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:22:53,643 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:22:53,643 INFO L87 Difference]: Start difference. First operand 3124 states and 15587 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:22:53,989 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 41 [2021-03-11 14:22:54,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:22:54,014 INFO L93 Difference]: Finished difference Result 6026 states and 26839 transitions. [2021-03-11 14:22:54,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:22:54,016 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:22:54,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:22:54,029 INFO L225 Difference]: With dead ends: 6026 [2021-03-11 14:22:54,029 INFO L226 Difference]: Without dead ends: 6006 [2021-03-11 14:22:54,029 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 679.7ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:22:54,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6006 states. [2021-03-11 14:22:54,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6006 to 3130. [2021-03-11 14:22:54,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3130 states, 3129 states have (on average 4.984979226589965) internal successors, (15598), 3129 states have internal predecessors, (15598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:22:54,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3130 states to 3130 states and 15598 transitions. [2021-03-11 14:22:54,165 INFO L78 Accepts]: Start accepts. Automaton has 3130 states and 15598 transitions. Word has length 31 [2021-03-11 14:22:54,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:22:54,165 INFO L480 AbstractCegarLoop]: Abstraction has 3130 states and 15598 transitions. [2021-03-11 14:22:54,165 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:22:54,165 INFO L276 IsEmpty]: Start isEmpty. Operand 3130 states and 15598 transitions. [2021-03-11 14:22:54,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:22:54,170 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:22:54,170 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:22:54,170 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable493 [2021-03-11 14:22:54,170 INFO L428 AbstractCegarLoop]: === Iteration 495 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:22:54,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:22:54,170 INFO L82 PathProgramCache]: Analyzing trace with hash -788101951, now seen corresponding path program 486 times [2021-03-11 14:22:54,170 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:22:54,170 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [503962585] [2021-03-11 14:22:54,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:22:54,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:22:54,182 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:22:54,182 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:22:54,183 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:22:54,184 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:22:54,194 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:22:54,194 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:22:54,211 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:22:54,212 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:22:54,236 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:22:54,236 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:22:54,268 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:22:54,269 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:22:54,307 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:22:54,308 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:22:54,384 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:22:54,385 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:22:54,475 INFO L142 QuantifierPusher]: treesize reduction 45, result has 59.1 percent of original size [2021-03-11 14:22:54,476 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:22:54,583 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:22:54,584 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:22:54,664 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:22:54,665 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:22:54,735 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:22:54,735 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [503962585] [2021-03-11 14:22:54,735 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:22:54,735 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:22:54,735 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [504688788] [2021-03-11 14:22:54,736 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:22:54,736 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:22:54,736 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:22:54,736 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:22:54,736 INFO L87 Difference]: Start difference. First operand 3130 states and 15598 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:22:55,025 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 39 [2021-03-11 14:22:55,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:22:55,056 INFO L93 Difference]: Finished difference Result 6023 states and 26827 transitions. [2021-03-11 14:22:55,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:22:55,058 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:22:55,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:22:55,071 INFO L225 Difference]: With dead ends: 6023 [2021-03-11 14:22:55,071 INFO L226 Difference]: Without dead ends: 5995 [2021-03-11 14:22:55,071 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 648.2ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:22:55,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5995 states. [2021-03-11 14:22:55,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5995 to 3119. [2021-03-11 14:22:55,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3119 states, 3118 states have (on average 4.994547787042976) internal successors, (15573), 3118 states have internal predecessors, (15573), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:22:55,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3119 states to 3119 states and 15573 transitions. [2021-03-11 14:22:55,204 INFO L78 Accepts]: Start accepts. Automaton has 3119 states and 15573 transitions. Word has length 31 [2021-03-11 14:22:55,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:22:55,205 INFO L480 AbstractCegarLoop]: Abstraction has 3119 states and 15573 transitions. [2021-03-11 14:22:55,205 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:22:55,205 INFO L276 IsEmpty]: Start isEmpty. Operand 3119 states and 15573 transitions. [2021-03-11 14:22:55,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:22:55,209 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:22:55,209 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:22:55,209 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable494 [2021-03-11 14:22:55,209 INFO L428 AbstractCegarLoop]: === Iteration 496 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:22:55,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:22:55,210 INFO L82 PathProgramCache]: Analyzing trace with hash -1068886293, now seen corresponding path program 487 times [2021-03-11 14:22:55,210 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:22:55,210 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2098508508] [2021-03-11 14:22:55,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:22:55,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:22:55,222 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:22:55,223 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:22:55,223 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:22:55,224 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:22:55,244 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:22:55,245 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:22:55,266 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:22:55,267 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:22:55,298 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:22:55,299 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:22:55,342 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:22:55,343 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:22:55,394 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:22:55,395 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:22:55,496 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:22:55,497 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:22:55,586 INFO L142 QuantifierPusher]: treesize reduction 45, result has 59.1 percent of original size [2021-03-11 14:22:55,587 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:22:55,689 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:22:55,690 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:22:55,765 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:22:55,766 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:22:55,835 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:22:55,835 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2098508508] [2021-03-11 14:22:55,835 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:22:55,835 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:22:55,835 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1270691027] [2021-03-11 14:22:55,835 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:22:55,835 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:22:55,835 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:22:55,835 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:22:55,835 INFO L87 Difference]: Start difference. First operand 3119 states and 15573 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:22:56,117 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 38 [2021-03-11 14:22:56,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:22:56,143 INFO L93 Difference]: Finished difference Result 6033 states and 26859 transitions. [2021-03-11 14:22:56,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:22:56,145 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:22:56,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:22:56,158 INFO L225 Difference]: With dead ends: 6033 [2021-03-11 14:22:56,158 INFO L226 Difference]: Without dead ends: 6017 [2021-03-11 14:22:56,158 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 688.0ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:22:56,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6017 states. [2021-03-11 14:22:56,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6017 to 3131. [2021-03-11 14:22:56,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3131 states, 3130 states have (on average 4.9859424920127795) internal successors, (15606), 3130 states have internal predecessors, (15606), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:22:56,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3131 states to 3131 states and 15606 transitions. [2021-03-11 14:22:56,293 INFO L78 Accepts]: Start accepts. Automaton has 3131 states and 15606 transitions. Word has length 31 [2021-03-11 14:22:56,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:22:56,293 INFO L480 AbstractCegarLoop]: Abstraction has 3131 states and 15606 transitions. [2021-03-11 14:22:56,293 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:22:56,293 INFO L276 IsEmpty]: Start isEmpty. Operand 3131 states and 15606 transitions. [2021-03-11 14:22:56,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:22:56,298 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:22:56,298 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:22:56,298 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable495 [2021-03-11 14:22:56,298 INFO L428 AbstractCegarLoop]: === Iteration 497 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:22:56,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:22:56,298 INFO L82 PathProgramCache]: Analyzing trace with hash -1913857745, now seen corresponding path program 488 times [2021-03-11 14:22:56,299 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:22:56,299 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1548413232] [2021-03-11 14:22:56,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:22:56,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:22:56,310 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:22:56,311 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:22:56,312 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:22:56,313 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:22:56,322 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:22:56,323 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:22:56,339 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:22:56,340 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:22:56,363 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:22:56,364 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:22:56,395 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:22:56,396 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:22:56,435 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:22:56,436 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:22:56,513 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:22:56,514 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:22:56,603 INFO L142 QuantifierPusher]: treesize reduction 45, result has 59.1 percent of original size [2021-03-11 14:22:56,604 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:22:56,706 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:22:56,707 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:22:56,786 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:22:56,787 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:22:56,857 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:22:56,857 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1548413232] [2021-03-11 14:22:56,857 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:22:56,857 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:22:56,857 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [344543815] [2021-03-11 14:22:56,857 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:22:56,857 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:22:56,857 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:22:56,857 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:22:56,857 INFO L87 Difference]: Start difference. First operand 3131 states and 15606 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:22:57,164 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 41 [2021-03-11 14:22:57,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:22:57,192 INFO L93 Difference]: Finished difference Result 6037 states and 26862 transitions. [2021-03-11 14:22:57,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:22:57,194 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:22:57,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:22:57,207 INFO L225 Difference]: With dead ends: 6037 [2021-03-11 14:22:57,207 INFO L226 Difference]: Without dead ends: 6012 [2021-03-11 14:22:57,208 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 645.1ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:22:57,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6012 states. [2021-03-11 14:22:57,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6012 to 3126. [2021-03-11 14:22:57,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3126 states, 3125 states have (on average 4.98944) internal successors, (15592), 3125 states have internal predecessors, (15592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:22:57,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3126 states to 3126 states and 15592 transitions. [2021-03-11 14:22:57,342 INFO L78 Accepts]: Start accepts. Automaton has 3126 states and 15592 transitions. Word has length 31 [2021-03-11 14:22:57,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:22:57,342 INFO L480 AbstractCegarLoop]: Abstraction has 3126 states and 15592 transitions. [2021-03-11 14:22:57,342 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:22:57,342 INFO L276 IsEmpty]: Start isEmpty. Operand 3126 states and 15592 transitions. [2021-03-11 14:22:57,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:22:57,347 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:22:57,347 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:22:57,347 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable496 [2021-03-11 14:22:57,347 INFO L428 AbstractCegarLoop]: === Iteration 498 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:22:57,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:22:57,347 INFO L82 PathProgramCache]: Analyzing trace with hash 1740991677, now seen corresponding path program 489 times [2021-03-11 14:22:57,347 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:22:57,347 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [472284038] [2021-03-11 14:22:57,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:22:57,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:22:57,359 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:22:57,360 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:22:57,361 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:22:57,361 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:22:57,371 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:22:57,372 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:22:57,388 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:22:57,389 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:22:57,412 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:22:57,413 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:22:57,445 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:22:57,446 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:22:57,484 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:22:57,485 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:22:57,563 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:22:57,564 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:22:57,652 INFO L142 QuantifierPusher]: treesize reduction 54, result has 55.4 percent of original size [2021-03-11 14:22:57,653 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-03-11 14:22:57,754 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:22:57,755 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:22:57,834 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:22:57,835 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:22:57,911 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:22:57,911 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [472284038] [2021-03-11 14:22:57,911 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:22:57,911 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:22:57,911 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [882782604] [2021-03-11 14:22:57,911 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:22:57,911 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:22:57,912 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:22:57,912 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:22:57,912 INFO L87 Difference]: Start difference. First operand 3126 states and 15592 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:22:58,224 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 38 [2021-03-11 14:22:58,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:22:58,250 INFO L93 Difference]: Finished difference Result 6036 states and 26859 transitions. [2021-03-11 14:22:58,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:22:58,252 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:22:58,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:22:58,265 INFO L225 Difference]: With dead ends: 6036 [2021-03-11 14:22:58,265 INFO L226 Difference]: Without dead ends: 6020 [2021-03-11 14:22:58,265 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 641.3ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:22:58,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6020 states. [2021-03-11 14:22:58,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6020 to 3132. [2021-03-11 14:22:58,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3132 states, 3131 states have (on average 4.983391887575855) internal successors, (15603), 3131 states have internal predecessors, (15603), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:22:58,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3132 states to 3132 states and 15603 transitions. [2021-03-11 14:22:58,400 INFO L78 Accepts]: Start accepts. Automaton has 3132 states and 15603 transitions. Word has length 31 [2021-03-11 14:22:58,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:22:58,400 INFO L480 AbstractCegarLoop]: Abstraction has 3132 states and 15603 transitions. [2021-03-11 14:22:58,401 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:22:58,401 INFO L276 IsEmpty]: Start isEmpty. Operand 3132 states and 15603 transitions. [2021-03-11 14:22:58,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:22:58,405 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:22:58,405 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:22:58,405 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable497 [2021-03-11 14:22:58,405 INFO L428 AbstractCegarLoop]: === Iteration 499 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:22:58,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:22:58,406 INFO L82 PathProgramCache]: Analyzing trace with hash -2061379857, now seen corresponding path program 490 times [2021-03-11 14:22:58,406 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:22:58,406 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [249102543] [2021-03-11 14:22:58,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:22:58,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:22:58,418 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:22:58,418 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:22:58,419 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:22:58,420 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:22:58,430 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:22:58,431 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:22:58,447 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:22:58,448 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:22:58,473 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:22:58,473 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:22:58,506 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:22:58,507 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:22:58,548 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:22:58,549 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:22:58,627 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:22:58,628 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:22:58,717 INFO L142 QuantifierPusher]: treesize reduction 54, result has 55.4 percent of original size [2021-03-11 14:22:58,718 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-03-11 14:22:58,818 INFO L142 QuantifierPusher]: treesize reduction 72, result has 49.7 percent of original size [2021-03-11 14:22:58,819 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-03-11 14:22:58,898 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:22:58,899 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:22:58,969 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:22:58,969 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [249102543] [2021-03-11 14:22:58,969 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:22:58,969 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:22:58,969 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1964560232] [2021-03-11 14:22:58,969 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:22:58,969 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:22:58,969 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:22:58,969 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:22:58,969 INFO L87 Difference]: Start difference. First operand 3132 states and 15603 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:22:59,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:22:59,236 INFO L93 Difference]: Finished difference Result 6042 states and 26865 transitions. [2021-03-11 14:22:59,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:22:59,238 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:22:59,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:22:59,251 INFO L225 Difference]: With dead ends: 6042 [2021-03-11 14:22:59,251 INFO L226 Difference]: Without dead ends: 6014 [2021-03-11 14:22:59,251 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 589.6ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:22:59,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6014 states. [2021-03-11 14:22:59,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6014 to 3126. [2021-03-11 14:22:59,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3126 states, 3125 states have (on average 4.98752) internal successors, (15586), 3125 states have internal predecessors, (15586), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:22:59,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3126 states to 3126 states and 15586 transitions. [2021-03-11 14:22:59,386 INFO L78 Accepts]: Start accepts. Automaton has 3126 states and 15586 transitions. Word has length 31 [2021-03-11 14:22:59,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:22:59,387 INFO L480 AbstractCegarLoop]: Abstraction has 3126 states and 15586 transitions. [2021-03-11 14:22:59,387 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:22:59,387 INFO L276 IsEmpty]: Start isEmpty. Operand 3126 states and 15586 transitions. [2021-03-11 14:22:59,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:22:59,391 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:22:59,391 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:22:59,391 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable498 [2021-03-11 14:22:59,392 INFO L428 AbstractCegarLoop]: === Iteration 500 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:22:59,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:22:59,392 INFO L82 PathProgramCache]: Analyzing trace with hash 471708989, now seen corresponding path program 491 times [2021-03-11 14:22:59,392 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:22:59,392 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [44588468] [2021-03-11 14:22:59,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:22:59,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:22:59,404 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:22:59,404 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:22:59,405 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:22:59,406 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:22:59,416 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:22:59,416 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:22:59,433 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:22:59,434 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:22:59,457 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:22:59,458 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:22:59,490 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:22:59,491 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:22:59,530 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:22:59,531 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:22:59,610 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:22:59,611 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:22:59,701 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:22:59,702 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:22:59,772 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:22:59,772 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:22:59,852 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:22:59,852 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:22:59,923 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:22:59,924 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [44588468] [2021-03-11 14:22:59,924 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:22:59,924 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:22:59,924 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1826091468] [2021-03-11 14:22:59,924 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:22:59,924 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:22:59,924 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:22:59,924 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:22:59,924 INFO L87 Difference]: Start difference. First operand 3126 states and 15586 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:23:00,347 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 41 [2021-03-11 14:23:00,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:23:00,375 INFO L93 Difference]: Finished difference Result 6049 states and 26882 transitions. [2021-03-11 14:23:00,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:23:00,378 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:23:00,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:23:00,392 INFO L225 Difference]: With dead ends: 6049 [2021-03-11 14:23:00,392 INFO L226 Difference]: Without dead ends: 6029 [2021-03-11 14:23:00,392 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 620.5ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:23:00,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6029 states. [2021-03-11 14:23:00,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6029 to 3137. [2021-03-11 14:23:00,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3137 states, 3136 states have (on average 4.97640306122449) internal successors, (15606), 3136 states have internal predecessors, (15606), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:23:00,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3137 states to 3137 states and 15606 transitions. [2021-03-11 14:23:00,535 INFO L78 Accepts]: Start accepts. Automaton has 3137 states and 15606 transitions. Word has length 31 [2021-03-11 14:23:00,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:23:00,535 INFO L480 AbstractCegarLoop]: Abstraction has 3137 states and 15606 transitions. [2021-03-11 14:23:00,535 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:23:00,535 INFO L276 IsEmpty]: Start isEmpty. Operand 3137 states and 15606 transitions. [2021-03-11 14:23:00,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:23:00,540 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:23:00,540 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:23:00,540 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable499 [2021-03-11 14:23:00,540 INFO L428 AbstractCegarLoop]: === Iteration 501 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:23:00,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:23:00,541 INFO L82 PathProgramCache]: Analyzing trace with hash 1809276203, now seen corresponding path program 492 times [2021-03-11 14:23:00,541 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:23:00,541 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [584744087] [2021-03-11 14:23:00,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:23:00,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:23:00,558 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:23:00,559 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:23:00,560 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:23:00,561 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:23:00,575 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:23:00,576 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:23:00,601 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:23:00,602 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:23:00,638 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:23:00,640 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:23:00,686 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:23:00,687 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:23:00,741 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:23:00,742 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:23:00,847 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:23:00,849 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:23:00,970 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:23:00,971 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:23:01,066 INFO L142 QuantifierPusher]: treesize reduction 72, result has 49.7 percent of original size [2021-03-11 14:23:01,067 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-03-11 14:23:01,156 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:23:01,157 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:23:01,230 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:23:01,230 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [584744087] [2021-03-11 14:23:01,230 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:23:01,230 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:23:01,230 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [16183635] [2021-03-11 14:23:01,231 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:23:01,231 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:23:01,231 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:23:01,231 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:23:01,231 INFO L87 Difference]: Start difference. First operand 3137 states and 15606 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:23:01,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:23:01,589 INFO L93 Difference]: Finished difference Result 6051 states and 26876 transitions. [2021-03-11 14:23:01,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:23:01,591 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:23:01,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:23:01,604 INFO L225 Difference]: With dead ends: 6051 [2021-03-11 14:23:01,605 INFO L226 Difference]: Without dead ends: 6011 [2021-03-11 14:23:01,605 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 703.6ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:23:01,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6011 states. [2021-03-11 14:23:01,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6011 to 3119. [2021-03-11 14:23:01,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3119 states, 3118 states have (on average 4.99230275817832) internal successors, (15566), 3118 states have internal predecessors, (15566), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:23:01,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3119 states to 3119 states and 15566 transitions. [2021-03-11 14:23:01,744 INFO L78 Accepts]: Start accepts. Automaton has 3119 states and 15566 transitions. Word has length 31 [2021-03-11 14:23:01,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:23:01,744 INFO L480 AbstractCegarLoop]: Abstraction has 3119 states and 15566 transitions. [2021-03-11 14:23:01,744 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:23:01,744 INFO L276 IsEmpty]: Start isEmpty. Operand 3119 states and 15566 transitions. [2021-03-11 14:23:01,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:23:01,749 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:23:01,749 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:23:01,749 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable500 [2021-03-11 14:23:01,749 INFO L428 AbstractCegarLoop]: === Iteration 502 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:23:01,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:23:01,750 INFO L82 PathProgramCache]: Analyzing trace with hash -1761943957, now seen corresponding path program 493 times [2021-03-11 14:23:01,750 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:23:01,750 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1225135950] [2021-03-11 14:23:01,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:23:01,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:23:01,762 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:23:01,763 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:23:01,764 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:23:01,764 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:23:01,774 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:23:01,775 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:23:01,792 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:23:01,793 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:23:01,818 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:23:01,819 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:23:01,852 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:23:01,853 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:23:01,895 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:23:01,896 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:23:01,977 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:23:01,978 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:23:02,082 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:23:02,083 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:23:02,153 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:23:02,154 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:23:02,234 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:23:02,235 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:23:02,307 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:23:02,307 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1225135950] [2021-03-11 14:23:02,307 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:23:02,307 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:23:02,307 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1956367199] [2021-03-11 14:23:02,307 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:23:02,307 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:23:02,308 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:23:02,308 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:23:02,308 INFO L87 Difference]: Start difference. First operand 3119 states and 15566 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:23:02,746 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 38 [2021-03-11 14:23:02,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:23:02,775 INFO L93 Difference]: Finished difference Result 6022 states and 26828 transitions. [2021-03-11 14:23:02,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:23:02,778 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:23:02,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:23:02,791 INFO L225 Difference]: With dead ends: 6022 [2021-03-11 14:23:02,791 INFO L226 Difference]: Without dead ends: 6006 [2021-03-11 14:23:02,791 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 647.4ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:23:02,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6006 states. [2021-03-11 14:23:02,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6006 to 3130. [2021-03-11 14:23:02,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3130 states, 3129 states have (on average 4.984659635666347) internal successors, (15597), 3129 states have internal predecessors, (15597), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:23:02,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3130 states to 3130 states and 15597 transitions. [2021-03-11 14:23:02,934 INFO L78 Accepts]: Start accepts. Automaton has 3130 states and 15597 transitions. Word has length 31 [2021-03-11 14:23:02,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:23:02,934 INFO L480 AbstractCegarLoop]: Abstraction has 3130 states and 15597 transitions. [2021-03-11 14:23:02,934 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:23:02,934 INFO L276 IsEmpty]: Start isEmpty. Operand 3130 states and 15597 transitions. [2021-03-11 14:23:02,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:23:02,939 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:23:02,939 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:23:02,939 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable501 [2021-03-11 14:23:02,939 INFO L428 AbstractCegarLoop]: === Iteration 503 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:23:02,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:23:02,940 INFO L82 PathProgramCache]: Analyzing trace with hash 843080435, now seen corresponding path program 494 times [2021-03-11 14:23:02,940 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:23:02,940 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1778090017] [2021-03-11 14:23:02,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:23:02,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:23:02,952 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:23:02,952 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:23:02,953 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:23:02,954 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:23:02,965 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:23:02,966 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:23:02,984 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:23:02,985 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:23:03,012 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:23:03,013 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:23:03,049 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:23:03,050 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:23:03,095 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:23:03,096 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:23:03,183 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:23:03,184 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:23:03,291 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:23:03,292 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:23:03,368 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:23:03,369 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:23:03,457 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:23:03,458 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:23:03,538 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:23:03,538 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1778090017] [2021-03-11 14:23:03,538 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:23:03,538 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:23:03,538 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [122017769] [2021-03-11 14:23:03,538 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:23:03,538 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:23:03,539 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:23:03,539 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:23:03,539 INFO L87 Difference]: Start difference. First operand 3130 states and 15597 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:23:03,867 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 39 [2021-03-11 14:23:03,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:23:03,899 INFO L93 Difference]: Finished difference Result 6023 states and 26825 transitions. [2021-03-11 14:23:03,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:23:03,902 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:23:03,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:23:03,915 INFO L225 Difference]: With dead ends: 6023 [2021-03-11 14:23:03,915 INFO L226 Difference]: Without dead ends: 6001 [2021-03-11 14:23:03,915 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 685.5ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:23:04,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6001 states. [2021-03-11 14:23:04,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6001 to 3125. [2021-03-11 14:23:04,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3125 states, 3124 states have (on average 4.988156209987196) internal successors, (15583), 3124 states have internal predecessors, (15583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:23:04,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3125 states to 3125 states and 15583 transitions. [2021-03-11 14:23:04,057 INFO L78 Accepts]: Start accepts. Automaton has 3125 states and 15583 transitions. Word has length 31 [2021-03-11 14:23:04,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:23:04,057 INFO L480 AbstractCegarLoop]: Abstraction has 3125 states and 15583 transitions. [2021-03-11 14:23:04,057 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:23:04,057 INFO L276 IsEmpty]: Start isEmpty. Operand 3125 states and 15583 transitions. [2021-03-11 14:23:04,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:23:04,062 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:23:04,062 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:23:04,062 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable502 [2021-03-11 14:23:04,062 INFO L428 AbstractCegarLoop]: === Iteration 504 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:23:04,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:23:04,062 INFO L82 PathProgramCache]: Analyzing trace with hash 1472245249, now seen corresponding path program 495 times [2021-03-11 14:23:04,062 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:23:04,062 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [845278598] [2021-03-11 14:23:04,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:23:04,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:23:04,074 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:23:04,075 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:23:04,076 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:23:04,077 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:23:04,087 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:23:04,088 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:23:04,106 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:23:04,107 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:23:04,134 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:23:04,135 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:23:04,171 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:23:04,172 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:23:04,215 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:23:04,216 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:23:04,303 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:23:04,304 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:23:04,411 INFO L142 QuantifierPusher]: treesize reduction 54, result has 55.4 percent of original size [2021-03-11 14:23:04,412 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-03-11 14:23:04,522 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:23:04,523 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:23:04,610 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:23:04,611 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:23:04,689 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:23:04,689 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [845278598] [2021-03-11 14:23:04,689 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:23:04,689 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:23:04,690 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1795940576] [2021-03-11 14:23:04,690 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:23:04,690 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:23:04,690 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:23:04,690 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:23:04,690 INFO L87 Difference]: Start difference. First operand 3125 states and 15583 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:23:05,011 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 38 [2021-03-11 14:23:05,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:23:05,038 INFO L93 Difference]: Finished difference Result 6028 states and 26834 transitions. [2021-03-11 14:23:05,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:23:05,040 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:23:05,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:23:05,053 INFO L225 Difference]: With dead ends: 6028 [2021-03-11 14:23:05,053 INFO L226 Difference]: Without dead ends: 6012 [2021-03-11 14:23:05,054 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 706.3ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:23:05,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6012 states. [2021-03-11 14:23:05,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6012 to 3131. [2021-03-11 14:23:05,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3131 states, 3130 states have (on average 4.982108626198083) internal successors, (15594), 3130 states have internal predecessors, (15594), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:23:05,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3131 states to 3131 states and 15594 transitions. [2021-03-11 14:23:05,188 INFO L78 Accepts]: Start accepts. Automaton has 3131 states and 15594 transitions. Word has length 31 [2021-03-11 14:23:05,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:23:05,188 INFO L480 AbstractCegarLoop]: Abstraction has 3131 states and 15594 transitions. [2021-03-11 14:23:05,188 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:23:05,188 INFO L276 IsEmpty]: Start isEmpty. Operand 3131 states and 15594 transitions. [2021-03-11 14:23:05,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:23:05,193 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:23:05,193 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:23:05,193 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable503 [2021-03-11 14:23:05,193 INFO L428 AbstractCegarLoop]: === Iteration 505 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:23:05,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:23:05,193 INFO L82 PathProgramCache]: Analyzing trace with hash 1964841011, now seen corresponding path program 496 times [2021-03-11 14:23:05,193 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:23:05,193 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1665226325] [2021-03-11 14:23:05,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:23:05,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:23:05,205 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:23:05,206 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:23:05,207 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:23:05,207 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:23:05,217 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:23:05,218 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:23:05,235 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:23:05,236 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:23:05,260 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:23:05,261 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:23:05,294 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:23:05,295 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:23:05,335 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:23:05,336 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:23:05,415 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:23:05,416 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:23:05,513 INFO L142 QuantifierPusher]: treesize reduction 54, result has 55.4 percent of original size [2021-03-11 14:23:05,514 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-03-11 14:23:05,616 INFO L142 QuantifierPusher]: treesize reduction 72, result has 49.7 percent of original size [2021-03-11 14:23:05,617 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-03-11 14:23:05,700 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:23:05,701 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:23:05,772 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:23:05,772 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1665226325] [2021-03-11 14:23:05,772 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:23:05,772 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:23:05,773 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [171316927] [2021-03-11 14:23:05,773 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:23:05,773 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:23:05,773 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:23:05,773 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:23:05,773 INFO L87 Difference]: Start difference. First operand 3131 states and 15594 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:23:06,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:23:06,055 INFO L93 Difference]: Finished difference Result 6034 states and 26840 transitions. [2021-03-11 14:23:06,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:23:06,057 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:23:06,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:23:06,070 INFO L225 Difference]: With dead ends: 6034 [2021-03-11 14:23:06,070 INFO L226 Difference]: Without dead ends: 6006 [2021-03-11 14:23:06,071 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 607.6ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:23:06,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6006 states. [2021-03-11 14:23:06,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6006 to 3125. [2021-03-11 14:23:06,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3125 states, 3124 states have (on average 4.986235595390525) internal successors, (15577), 3124 states have internal predecessors, (15577), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:23:06,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3125 states to 3125 states and 15577 transitions. [2021-03-11 14:23:06,205 INFO L78 Accepts]: Start accepts. Automaton has 3125 states and 15577 transitions. Word has length 31 [2021-03-11 14:23:06,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:23:06,205 INFO L480 AbstractCegarLoop]: Abstraction has 3125 states and 15577 transitions. [2021-03-11 14:23:06,205 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:23:06,205 INFO L276 IsEmpty]: Start isEmpty. Operand 3125 states and 15577 transitions. [2021-03-11 14:23:06,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:23:06,210 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:23:06,210 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:23:06,210 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable504 [2021-03-11 14:23:06,210 INFO L428 AbstractCegarLoop]: === Iteration 506 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:23:06,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:23:06,210 INFO L82 PathProgramCache]: Analyzing trace with hash -1066320127, now seen corresponding path program 497 times [2021-03-11 14:23:06,210 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:23:06,210 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [618495331] [2021-03-11 14:23:06,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:23:06,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:23:06,222 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:23:06,222 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:23:06,223 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:23:06,224 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:23:06,234 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:23:06,235 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:23:06,252 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:23:06,253 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:23:06,277 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:23:06,278 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:23:06,310 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:23:06,311 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:23:06,352 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:23:06,352 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:23:06,432 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:23:06,433 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:23:06,532 INFO L142 QuantifierPusher]: treesize reduction 54, result has 55.4 percent of original size [2021-03-11 14:23:06,533 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-03-11 14:23:06,651 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:23:06,652 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:23:06,733 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:23:06,734 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:23:06,810 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:23:06,810 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [618495331] [2021-03-11 14:23:06,810 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:23:06,810 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:23:06,810 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [984019825] [2021-03-11 14:23:06,810 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:23:06,810 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:23:06,810 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:23:06,810 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:23:06,811 INFO L87 Difference]: Start difference. First operand 3125 states and 15577 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:23:07,201 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 39 [2021-03-11 14:23:07,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:23:07,230 INFO L93 Difference]: Finished difference Result 6031 states and 26835 transitions. [2021-03-11 14:23:07,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:23:07,232 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:23:07,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:23:07,245 INFO L225 Difference]: With dead ends: 6031 [2021-03-11 14:23:07,245 INFO L226 Difference]: Without dead ends: 6014 [2021-03-11 14:23:07,245 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 679.1ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:23:07,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6014 states. [2021-03-11 14:23:07,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6014 to 3132. [2021-03-11 14:23:07,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3132 states, 3131 states have (on average 4.979239859469818) internal successors, (15590), 3131 states have internal predecessors, (15590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:23:07,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3132 states to 3132 states and 15590 transitions. [2021-03-11 14:23:07,380 INFO L78 Accepts]: Start accepts. Automaton has 3132 states and 15590 transitions. Word has length 31 [2021-03-11 14:23:07,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:23:07,380 INFO L480 AbstractCegarLoop]: Abstraction has 3132 states and 15590 transitions. [2021-03-11 14:23:07,380 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:23:07,380 INFO L276 IsEmpty]: Start isEmpty. Operand 3132 states and 15590 transitions. [2021-03-11 14:23:07,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:23:07,385 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:23:07,385 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:23:07,385 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable505 [2021-03-11 14:23:07,385 INFO L428 AbstractCegarLoop]: === Iteration 507 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:23:07,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:23:07,385 INFO L82 PathProgramCache]: Analyzing trace with hash 1116218539, now seen corresponding path program 498 times [2021-03-11 14:23:07,385 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:23:07,385 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [553424861] [2021-03-11 14:23:07,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:23:07,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:23:07,402 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:23:07,403 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:23:07,404 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:23:07,405 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:23:07,418 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:23:07,420 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:23:07,442 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:23:07,444 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:23:07,476 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:23:07,477 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:23:07,520 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:23:07,521 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:23:07,565 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:23:07,565 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:23:07,646 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:23:07,646 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:23:07,744 INFO L142 QuantifierPusher]: treesize reduction 54, result has 55.4 percent of original size [2021-03-11 14:23:07,745 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-03-11 14:23:07,861 INFO L142 QuantifierPusher]: treesize reduction 72, result has 49.7 percent of original size [2021-03-11 14:23:07,862 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-03-11 14:23:07,944 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:23:07,945 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:23:08,022 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:23:08,022 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [553424861] [2021-03-11 14:23:08,022 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:23:08,022 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:23:08,022 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [11401144] [2021-03-11 14:23:08,022 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:23:08,023 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:23:08,023 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:23:08,023 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:23:08,023 INFO L87 Difference]: Start difference. First operand 3132 states and 15590 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:23:08,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:23:08,315 INFO L93 Difference]: Finished difference Result 6036 states and 26838 transitions. [2021-03-11 14:23:08,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:23:08,317 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:23:08,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:23:08,330 INFO L225 Difference]: With dead ends: 6036 [2021-03-11 14:23:08,330 INFO L226 Difference]: Without dead ends: 6001 [2021-03-11 14:23:08,331 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 656.0ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:23:08,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6001 states. [2021-03-11 14:23:08,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6001 to 3119. [2021-03-11 14:23:08,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3119 states, 3118 states have (on average 4.990378447722899) internal successors, (15560), 3118 states have internal predecessors, (15560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:23:08,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3119 states to 3119 states and 15560 transitions. [2021-03-11 14:23:08,466 INFO L78 Accepts]: Start accepts. Automaton has 3119 states and 15560 transitions. Word has length 31 [2021-03-11 14:23:08,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:23:08,466 INFO L480 AbstractCegarLoop]: Abstraction has 3119 states and 15560 transitions. [2021-03-11 14:23:08,466 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:23:08,466 INFO L276 IsEmpty]: Start isEmpty. Operand 3119 states and 15560 transitions. [2021-03-11 14:23:08,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:23:08,471 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:23:08,471 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:23:08,471 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable506 [2021-03-11 14:23:08,471 INFO L428 AbstractCegarLoop]: === Iteration 508 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:23:08,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:23:08,471 INFO L82 PathProgramCache]: Analyzing trace with hash 994994223, now seen corresponding path program 499 times [2021-03-11 14:23:08,471 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:23:08,471 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [277850679] [2021-03-11 14:23:08,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:23:08,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:23:08,483 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:23:08,484 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:23:08,484 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:23:08,485 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:23:08,495 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:23:08,496 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:23:08,513 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:23:08,514 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:23:08,539 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:23:08,539 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:23:08,573 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:23:08,573 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:23:08,615 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:23:08,616 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:23:08,701 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:23:08,702 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:23:08,803 INFO L142 QuantifierPusher]: treesize reduction 45, result has 59.1 percent of original size [2021-03-11 14:23:08,804 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:23:08,917 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:23:08,918 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:23:09,000 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:23:09,001 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:23:09,073 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:23:09,073 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [277850679] [2021-03-11 14:23:09,074 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:23:09,074 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:23:09,074 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [695060871] [2021-03-11 14:23:09,074 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:23:09,074 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:23:09,074 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:23:09,074 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:23:09,074 INFO L87 Difference]: Start difference. First operand 3119 states and 15560 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:23:09,390 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 41 [2021-03-11 14:23:09,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:23:09,416 INFO L93 Difference]: Finished difference Result 6043 states and 26871 transitions. [2021-03-11 14:23:09,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:23:09,418 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:23:09,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:23:09,431 INFO L225 Difference]: With dead ends: 6043 [2021-03-11 14:23:09,431 INFO L226 Difference]: Without dead ends: 6023 [2021-03-11 14:23:09,431 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 692.1ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:23:09,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6023 states. [2021-03-11 14:23:09,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6023 to 3133. [2021-03-11 14:23:09,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3133 states, 3132 states have (on average 4.9805236270753515) internal successors, (15599), 3132 states have internal predecessors, (15599), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:23:09,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3133 states to 3133 states and 15599 transitions. [2021-03-11 14:23:09,567 INFO L78 Accepts]: Start accepts. Automaton has 3133 states and 15599 transitions. Word has length 31 [2021-03-11 14:23:09,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:23:09,567 INFO L480 AbstractCegarLoop]: Abstraction has 3133 states and 15599 transitions. [2021-03-11 14:23:09,567 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:23:09,567 INFO L276 IsEmpty]: Start isEmpty. Operand 3133 states and 15599 transitions. [2021-03-11 14:23:09,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:23:09,571 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:23:09,572 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:23:09,572 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable507 [2021-03-11 14:23:09,572 INFO L428 AbstractCegarLoop]: === Iteration 509 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:23:09,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:23:09,572 INFO L82 PathProgramCache]: Analyzing trace with hash 150022771, now seen corresponding path program 500 times [2021-03-11 14:23:09,572 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:23:09,572 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1354699040] [2021-03-11 14:23:09,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:23:09,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:23:09,584 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:23:09,584 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:23:09,585 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:23:09,586 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:23:09,596 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:23:09,597 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:23:09,614 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:23:09,615 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:23:09,640 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:23:09,641 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:23:09,675 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:23:09,676 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:23:09,718 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:23:09,719 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:23:09,800 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:23:09,801 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:23:09,899 INFO L142 QuantifierPusher]: treesize reduction 45, result has 59.1 percent of original size [2021-03-11 14:23:09,900 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:23:10,012 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:23:10,013 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:23:10,095 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:23:10,096 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:23:10,169 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:23:10,169 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1354699040] [2021-03-11 14:23:10,170 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:23:10,170 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:23:10,170 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1183577987] [2021-03-11 14:23:10,170 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:23:10,170 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:23:10,170 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:23:10,170 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:23:10,170 INFO L87 Difference]: Start difference. First operand 3133 states and 15599 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:23:10,466 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 39 [2021-03-11 14:23:10,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:23:10,500 INFO L93 Difference]: Finished difference Result 6040 states and 26859 transitions. [2021-03-11 14:23:10,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:23:10,502 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:23:10,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:23:10,515 INFO L225 Difference]: With dead ends: 6040 [2021-03-11 14:23:10,515 INFO L226 Difference]: Without dead ends: 6017 [2021-03-11 14:23:10,515 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 679.0ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:23:10,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6017 states. [2021-03-11 14:23:10,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6017 to 3127. [2021-03-11 14:23:10,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3127 states, 3126 states have (on average 4.984644913627639) internal successors, (15582), 3126 states have internal predecessors, (15582), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:23:10,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3127 states to 3127 states and 15582 transitions. [2021-03-11 14:23:10,650 INFO L78 Accepts]: Start accepts. Automaton has 3127 states and 15582 transitions. Word has length 31 [2021-03-11 14:23:10,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:23:10,650 INFO L480 AbstractCegarLoop]: Abstraction has 3127 states and 15582 transitions. [2021-03-11 14:23:10,650 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:23:10,651 INFO L276 IsEmpty]: Start isEmpty. Operand 3127 states and 15582 transitions. [2021-03-11 14:23:10,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:23:10,655 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:23:10,655 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:23:10,655 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable508 [2021-03-11 14:23:10,655 INFO L428 AbstractCegarLoop]: === Iteration 510 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:23:10,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:23:10,656 INFO L82 PathProgramCache]: Analyzing trace with hash -65783867, now seen corresponding path program 501 times [2021-03-11 14:23:10,656 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:23:10,656 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1267237711] [2021-03-11 14:23:10,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:23:10,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:23:10,668 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:23:10,668 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:23:10,669 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:23:10,670 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:23:10,680 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:23:10,681 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:23:10,698 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:23:10,699 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:23:10,724 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:23:10,725 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:23:10,759 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:23:10,760 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:23:10,802 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:23:10,802 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:23:10,885 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:23:10,886 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:23:10,986 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:23:10,987 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:23:11,063 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:23:11,064 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:23:11,146 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:23:11,147 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:23:11,220 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:23:11,220 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1267237711] [2021-03-11 14:23:11,220 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:23:11,220 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:23:11,220 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2145577577] [2021-03-11 14:23:11,220 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:23:11,220 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:23:11,220 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:23:11,220 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:23:11,220 INFO L87 Difference]: Start difference. First operand 3127 states and 15582 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:23:11,554 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 41 [2021-03-11 14:23:11,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:23:11,581 INFO L93 Difference]: Finished difference Result 6053 states and 26886 transitions. [2021-03-11 14:23:11,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:23:11,584 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:23:11,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:23:11,597 INFO L225 Difference]: With dead ends: 6053 [2021-03-11 14:23:11,597 INFO L226 Difference]: Without dead ends: 6033 [2021-03-11 14:23:11,597 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 655.5ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:23:11,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6033 states. [2021-03-11 14:23:11,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6033 to 3138. [2021-03-11 14:23:11,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3138 states, 3137 states have (on average 4.973541600255021) internal successors, (15602), 3137 states have internal predecessors, (15602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:23:11,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3138 states to 3138 states and 15602 transitions. [2021-03-11 14:23:11,734 INFO L78 Accepts]: Start accepts. Automaton has 3138 states and 15602 transitions. Word has length 31 [2021-03-11 14:23:11,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:23:11,734 INFO L480 AbstractCegarLoop]: Abstraction has 3138 states and 15602 transitions. [2021-03-11 14:23:11,734 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:23:11,734 INFO L276 IsEmpty]: Start isEmpty. Operand 3138 states and 15602 transitions. [2021-03-11 14:23:11,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:23:11,739 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:23:11,739 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:23:11,739 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable509 [2021-03-11 14:23:11,739 INFO L428 AbstractCegarLoop]: === Iteration 511 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:23:11,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:23:11,739 INFO L82 PathProgramCache]: Analyzing trace with hash 1271783347, now seen corresponding path program 502 times [2021-03-11 14:23:11,739 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:23:11,739 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1485562431] [2021-03-11 14:23:11,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:23:11,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:23:11,753 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:23:11,754 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:23:11,755 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:23:11,756 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:23:11,766 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:23:11,767 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:23:11,784 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:23:11,785 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:23:11,810 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:23:11,811 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:23:11,845 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:23:11,846 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:23:11,890 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:23:11,891 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:23:11,974 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:23:11,975 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:23:12,073 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:23:12,074 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:23:12,147 INFO L142 QuantifierPusher]: treesize reduction 72, result has 49.7 percent of original size [2021-03-11 14:23:12,148 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-03-11 14:23:12,231 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:23:12,232 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:23:12,306 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:23:12,306 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1485562431] [2021-03-11 14:23:12,306 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:23:12,306 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:23:12,306 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [636759535] [2021-03-11 14:23:12,306 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:23:12,306 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:23:12,306 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:23:12,307 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:23:12,307 INFO L87 Difference]: Start difference. First operand 3138 states and 15602 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:23:12,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:23:12,681 INFO L93 Difference]: Finished difference Result 6055 states and 26880 transitions. [2021-03-11 14:23:12,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:23:12,684 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:23:12,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:23:12,697 INFO L225 Difference]: With dead ends: 6055 [2021-03-11 14:23:12,697 INFO L226 Difference]: Without dead ends: 6022 [2021-03-11 14:23:12,697 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 593.4ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:23:12,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6022 states. [2021-03-11 14:23:12,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6022 to 3127. [2021-03-11 14:23:12,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3127 states, 3126 states have (on average 4.982085732565579) internal successors, (15574), 3126 states have internal predecessors, (15574), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:23:12,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3127 states to 3127 states and 15574 transitions. [2021-03-11 14:23:12,831 INFO L78 Accepts]: Start accepts. Automaton has 3127 states and 15574 transitions. Word has length 31 [2021-03-11 14:23:12,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:23:12,832 INFO L480 AbstractCegarLoop]: Abstraction has 3127 states and 15574 transitions. [2021-03-11 14:23:12,832 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:23:12,832 INFO L276 IsEmpty]: Start isEmpty. Operand 3127 states and 15574 transitions. [2021-03-11 14:23:12,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:23:12,836 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:23:12,836 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:23:12,836 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable510 [2021-03-11 14:23:12,836 INFO L428 AbstractCegarLoop]: === Iteration 512 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:23:12,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:23:12,837 INFO L82 PathProgramCache]: Analyzing trace with hash -1335066555, now seen corresponding path program 503 times [2021-03-11 14:23:12,837 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:23:12,837 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2057021659] [2021-03-11 14:23:12,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:23:12,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:23:12,852 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:23:12,853 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:23:12,854 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:23:12,854 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:23:12,865 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:23:12,866 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:23:12,884 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:23:12,885 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:23:12,911 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:23:12,912 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:23:12,946 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:23:12,947 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:23:12,988 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:23:12,989 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:23:13,071 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:23:13,072 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:23:13,172 INFO L142 QuantifierPusher]: treesize reduction 54, result has 55.4 percent of original size [2021-03-11 14:23:13,173 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-03-11 14:23:13,290 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:23:13,291 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:23:13,371 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:23:13,372 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:23:13,446 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:23:13,447 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2057021659] [2021-03-11 14:23:13,447 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:23:13,447 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:23:13,447 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010238017] [2021-03-11 14:23:13,447 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:23:13,447 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:23:13,448 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:23:13,448 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:23:13,448 INFO L87 Difference]: Start difference. First operand 3127 states and 15574 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:23:13,786 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 39 [2021-03-11 14:23:13,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:23:13,814 INFO L93 Difference]: Finished difference Result 6043 states and 26856 transitions. [2021-03-11 14:23:13,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:23:13,816 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:23:13,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:23:13,829 INFO L225 Difference]: With dead ends: 6043 [2021-03-11 14:23:13,829 INFO L226 Difference]: Without dead ends: 6026 [2021-03-11 14:23:13,830 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 688.5ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:23:13,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6026 states. [2021-03-11 14:23:13,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6026 to 3134. [2021-03-11 14:23:13,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3134 states, 3133 states have (on average 4.975103734439834) internal successors, (15587), 3133 states have internal predecessors, (15587), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:23:13,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3134 states to 3134 states and 15587 transitions. [2021-03-11 14:23:13,967 INFO L78 Accepts]: Start accepts. Automaton has 3134 states and 15587 transitions. Word has length 31 [2021-03-11 14:23:13,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:23:13,967 INFO L480 AbstractCegarLoop]: Abstraction has 3134 states and 15587 transitions. [2021-03-11 14:23:13,967 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:23:13,967 INFO L276 IsEmpty]: Start isEmpty. Operand 3134 states and 15587 transitions. [2021-03-11 14:23:13,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:23:13,972 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:23:13,972 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:23:13,972 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable511 [2021-03-11 14:23:13,972 INFO L428 AbstractCegarLoop]: === Iteration 513 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:23:13,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:23:13,973 INFO L82 PathProgramCache]: Analyzing trace with hash 847472111, now seen corresponding path program 504 times [2021-03-11 14:23:13,973 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:23:13,973 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1401176370] [2021-03-11 14:23:13,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:23:13,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:23:13,986 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:23:13,987 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:23:13,987 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:23:13,988 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:23:13,998 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:23:13,999 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:23:14,016 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:23:14,017 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:23:14,042 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:23:14,043 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:23:14,078 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:23:14,079 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:23:14,121 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:23:14,122 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:23:14,204 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:23:14,205 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:23:14,304 INFO L142 QuantifierPusher]: treesize reduction 54, result has 55.4 percent of original size [2021-03-11 14:23:14,304 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-03-11 14:23:14,421 INFO L142 QuantifierPusher]: treesize reduction 72, result has 49.7 percent of original size [2021-03-11 14:23:14,422 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-03-11 14:23:14,505 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:23:14,506 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:23:14,579 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:23:14,580 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1401176370] [2021-03-11 14:23:14,580 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:23:14,580 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:23:14,580 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [735084056] [2021-03-11 14:23:14,580 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:23:14,580 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:23:14,580 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:23:14,580 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:23:14,580 INFO L87 Difference]: Start difference. First operand 3134 states and 15587 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:23:14,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:23:14,889 INFO L93 Difference]: Finished difference Result 6048 states and 26859 transitions. [2021-03-11 14:23:14,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:23:14,891 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:23:14,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:23:14,904 INFO L225 Difference]: With dead ends: 6048 [2021-03-11 14:23:14,905 INFO L226 Difference]: Without dead ends: 6004 [2021-03-11 14:23:14,905 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 635.9ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:23:14,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6004 states. [2021-03-11 14:23:15,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6004 to 3112. [2021-03-11 14:23:15,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3112 states, 3111 states have (on average 4.995178399228544) internal successors, (15540), 3111 states have internal predecessors, (15540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:23:15,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3112 states to 3112 states and 15540 transitions. [2021-03-11 14:23:15,040 INFO L78 Accepts]: Start accepts. Automaton has 3112 states and 15540 transitions. Word has length 31 [2021-03-11 14:23:15,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:23:15,040 INFO L480 AbstractCegarLoop]: Abstraction has 3112 states and 15540 transitions. [2021-03-11 14:23:15,040 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:23:15,040 INFO L276 IsEmpty]: Start isEmpty. Operand 3112 states and 15540 transitions. [2021-03-11 14:23:15,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:23:15,044 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:23:15,044 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:23:15,044 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable512 [2021-03-11 14:23:15,045 INFO L428 AbstractCegarLoop]: === Iteration 514 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:23:15,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:23:15,045 INFO L82 PathProgramCache]: Analyzing trace with hash -267622561, now seen corresponding path program 505 times [2021-03-11 14:23:15,045 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:23:15,045 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [845029954] [2021-03-11 14:23:15,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:23:15,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:23:15,057 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:23:15,057 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:23:15,058 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:23:15,059 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:23:15,070 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:23:15,071 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:23:15,088 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:23:15,089 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:23:15,115 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:23:15,116 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:23:15,151 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:23:15,152 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:23:15,196 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:23:15,197 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:23:15,247 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:23:15,248 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:23:15,346 INFO L142 QuantifierPusher]: treesize reduction 45, result has 59.1 percent of original size [2021-03-11 14:23:15,347 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:23:15,456 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:23:15,457 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:23:15,539 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:23:15,540 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:23:15,614 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:23:15,615 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [845029954] [2021-03-11 14:23:15,615 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:23:15,615 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:23:15,615 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1476856380] [2021-03-11 14:23:15,615 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:23:15,615 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:23:15,615 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:23:15,615 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:23:15,615 INFO L87 Difference]: Start difference. First operand 3112 states and 15540 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:23:15,962 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 38 [2021-03-11 14:23:15,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:23:15,990 INFO L93 Difference]: Finished difference Result 6005 states and 26794 transitions. [2021-03-11 14:23:15,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:23:15,992 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:23:15,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:23:16,005 INFO L225 Difference]: With dead ends: 6005 [2021-03-11 14:23:16,006 INFO L226 Difference]: Without dead ends: 5989 [2021-03-11 14:23:16,006 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 653.1ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:23:16,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5989 states. [2021-03-11 14:23:16,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5989 to 3127. [2021-03-11 14:23:16,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3127 states, 3126 states have (on average 4.987843889955214) internal successors, (15592), 3126 states have internal predecessors, (15592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:23:16,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3127 states to 3127 states and 15592 transitions. [2021-03-11 14:23:16,144 INFO L78 Accepts]: Start accepts. Automaton has 3127 states and 15592 transitions. Word has length 31 [2021-03-11 14:23:16,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:23:16,144 INFO L480 AbstractCegarLoop]: Abstraction has 3127 states and 15592 transitions. [2021-03-11 14:23:16,144 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:23:16,145 INFO L276 IsEmpty]: Start isEmpty. Operand 3127 states and 15592 transitions. [2021-03-11 14:23:16,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:23:16,149 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:23:16,149 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:23:16,149 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable513 [2021-03-11 14:23:16,149 INFO L428 AbstractCegarLoop]: === Iteration 515 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:23:16,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:23:16,150 INFO L82 PathProgramCache]: Analyzing trace with hash -1112594013, now seen corresponding path program 506 times [2021-03-11 14:23:16,150 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:23:16,150 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1101137871] [2021-03-11 14:23:16,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:23:16,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:23:16,162 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:23:16,163 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:23:16,163 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:23:16,164 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:23:16,175 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:23:16,176 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:23:16,195 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:23:16,196 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:23:16,223 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:23:16,224 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:23:16,260 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:23:16,261 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:23:16,306 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:23:16,307 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:23:16,360 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:23:16,361 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:23:16,459 INFO L142 QuantifierPusher]: treesize reduction 45, result has 59.1 percent of original size [2021-03-11 14:23:16,460 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:23:16,568 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:23:16,569 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:23:16,652 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:23:16,653 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:23:16,727 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:23:16,727 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1101137871] [2021-03-11 14:23:16,727 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:23:16,727 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:23:16,727 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [345573522] [2021-03-11 14:23:16,727 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:23:16,727 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:23:16,727 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:23:16,727 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:23:16,728 INFO L87 Difference]: Start difference. First operand 3127 states and 15592 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:23:17,078 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 41 [2021-03-11 14:23:17,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:23:17,110 INFO L93 Difference]: Finished difference Result 6009 states and 26797 transitions. [2021-03-11 14:23:17,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:23:17,114 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:23:17,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:23:17,128 INFO L225 Difference]: With dead ends: 6009 [2021-03-11 14:23:17,128 INFO L226 Difference]: Without dead ends: 5984 [2021-03-11 14:23:17,128 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 672.8ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:23:17,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5984 states. [2021-03-11 14:23:17,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5984 to 3122. [2021-03-11 14:23:17,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3122 states, 3121 states have (on average 4.991348926626081) internal successors, (15578), 3121 states have internal predecessors, (15578), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:23:17,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3122 states to 3122 states and 15578 transitions. [2021-03-11 14:23:17,269 INFO L78 Accepts]: Start accepts. Automaton has 3122 states and 15578 transitions. Word has length 31 [2021-03-11 14:23:17,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:23:17,269 INFO L480 AbstractCegarLoop]: Abstraction has 3122 states and 15578 transitions. [2021-03-11 14:23:17,269 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:23:17,269 INFO L276 IsEmpty]: Start isEmpty. Operand 3122 states and 15578 transitions. [2021-03-11 14:23:17,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:23:17,273 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:23:17,273 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:23:17,274 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable514 [2021-03-11 14:23:17,274 INFO L428 AbstractCegarLoop]: === Iteration 516 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:23:17,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:23:17,274 INFO L82 PathProgramCache]: Analyzing trace with hash -691933797, now seen corresponding path program 507 times [2021-03-11 14:23:17,274 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:23:17,274 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [133207828] [2021-03-11 14:23:17,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:23:17,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:23:17,286 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:23:17,287 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:23:17,288 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:23:17,289 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:23:17,299 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:23:17,300 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:23:17,318 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:23:17,318 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:23:17,344 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:23:17,345 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:23:17,380 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:23:17,381 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:23:17,423 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:23:17,424 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:23:17,474 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:23:17,475 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:23:17,572 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:23:17,573 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:23:17,643 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:23:17,644 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:23:17,726 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:23:17,727 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:23:17,801 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:23:17,801 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [133207828] [2021-03-11 14:23:17,801 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:23:17,801 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:23:17,801 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [928215877] [2021-03-11 14:23:17,801 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:23:17,801 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:23:17,801 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:23:17,802 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:23:17,802 INFO L87 Difference]: Start difference. First operand 3122 states and 15578 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:23:18,133 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 38 [2021-03-11 14:23:18,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:23:18,161 INFO L93 Difference]: Finished difference Result 6002 states and 26783 transitions. [2021-03-11 14:23:18,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:23:18,163 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:23:18,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:23:18,176 INFO L225 Difference]: With dead ends: 6002 [2021-03-11 14:23:18,176 INFO L226 Difference]: Without dead ends: 5986 [2021-03-11 14:23:18,176 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 609.3ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:23:18,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5986 states. [2021-03-11 14:23:18,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5986 to 3127. [2021-03-11 14:23:18,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3127 states, 3126 states have (on average 4.986244401791427) internal successors, (15587), 3126 states have internal predecessors, (15587), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:23:18,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3127 states to 3127 states and 15587 transitions. [2021-03-11 14:23:18,311 INFO L78 Accepts]: Start accepts. Automaton has 3127 states and 15587 transitions. Word has length 31 [2021-03-11 14:23:18,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:23:18,311 INFO L480 AbstractCegarLoop]: Abstraction has 3127 states and 15587 transitions. [2021-03-11 14:23:18,311 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:23:18,311 INFO L276 IsEmpty]: Start isEmpty. Operand 3127 states and 15587 transitions. [2021-03-11 14:23:18,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:23:18,316 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:23:18,316 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:23:18,316 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable515 [2021-03-11 14:23:18,316 INFO L428 AbstractCegarLoop]: === Iteration 517 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:23:18,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:23:18,316 INFO L82 PathProgramCache]: Analyzing trace with hash 1913090595, now seen corresponding path program 508 times [2021-03-11 14:23:18,316 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:23:18,316 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1698177830] [2021-03-11 14:23:18,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:23:18,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:23:18,328 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:23:18,329 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:23:18,330 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:23:18,330 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:23:18,341 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:23:18,341 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:23:18,359 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:23:18,360 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:23:18,385 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:23:18,386 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:23:18,420 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:23:18,421 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:23:18,463 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:23:18,464 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:23:18,514 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:23:18,515 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:23:18,612 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:23:18,613 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:23:18,682 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:23:18,683 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:23:18,765 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:23:18,766 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:23:18,841 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:23:18,841 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1698177830] [2021-03-11 14:23:18,841 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:23:18,841 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:23:18,841 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1238566567] [2021-03-11 14:23:18,841 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:23:18,841 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:23:18,842 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:23:18,842 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:23:18,842 INFO L87 Difference]: Start difference. First operand 3127 states and 15587 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:23:19,199 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 39 [2021-03-11 14:23:19,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:23:19,233 INFO L93 Difference]: Finished difference Result 6003 states and 26780 transitions. [2021-03-11 14:23:19,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:23:19,236 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:23:19,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:23:19,248 INFO L225 Difference]: With dead ends: 6003 [2021-03-11 14:23:19,248 INFO L226 Difference]: Without dead ends: 5981 [2021-03-11 14:23:19,248 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 607.7ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:23:19,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5981 states. [2021-03-11 14:23:19,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5981 to 3122. [2021-03-11 14:23:19,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3122 states, 3121 states have (on average 4.9897468760012815) internal successors, (15573), 3121 states have internal predecessors, (15573), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:23:19,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3122 states to 3122 states and 15573 transitions. [2021-03-11 14:23:19,382 INFO L78 Accepts]: Start accepts. Automaton has 3122 states and 15573 transitions. Word has length 31 [2021-03-11 14:23:19,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:23:19,382 INFO L480 AbstractCegarLoop]: Abstraction has 3122 states and 15573 transitions. [2021-03-11 14:23:19,382 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:23:19,382 INFO L276 IsEmpty]: Start isEmpty. Operand 3122 states and 15573 transitions. [2021-03-11 14:23:19,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:23:19,387 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:23:19,387 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:23:19,387 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable516 [2021-03-11 14:23:19,387 INFO L428 AbstractCegarLoop]: === Iteration 518 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:23:19,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:23:19,387 INFO L82 PathProgramCache]: Analyzing trace with hash -1961216485, now seen corresponding path program 509 times [2021-03-11 14:23:19,387 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:23:19,387 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1039138205] [2021-03-11 14:23:19,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:23:19,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:23:19,399 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:23:19,400 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:23:19,401 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:23:19,401 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:23:19,412 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:23:19,412 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:23:19,430 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:23:19,431 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:23:19,456 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:23:19,457 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:23:19,492 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:23:19,493 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:23:19,535 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:23:19,536 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:23:19,588 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:23:19,589 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:23:19,687 INFO L142 QuantifierPusher]: treesize reduction 45, result has 59.1 percent of original size [2021-03-11 14:23:19,688 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:23:19,804 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:23:19,805 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:23:19,889 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:23:19,890 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:23:19,965 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:23:19,966 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1039138205] [2021-03-11 14:23:19,966 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:23:19,966 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:23:19,966 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1214450792] [2021-03-11 14:23:19,966 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:23:19,966 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:23:19,966 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:23:19,966 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:23:19,966 INFO L87 Difference]: Start difference. First operand 3122 states and 15573 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:23:20,289 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 41 [2021-03-11 14:23:20,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:23:20,318 INFO L93 Difference]: Finished difference Result 6011 states and 26797 transitions. [2021-03-11 14:23:20,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:23:20,320 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:23:20,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:23:20,333 INFO L225 Difference]: With dead ends: 6011 [2021-03-11 14:23:20,333 INFO L226 Difference]: Without dead ends: 5991 [2021-03-11 14:23:20,333 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 679.2ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:23:20,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5991 states. [2021-03-11 14:23:20,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5991 to 3128. [2021-03-11 14:23:20,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3128 states, 3127 states have (on average 4.983690438119604) internal successors, (15584), 3127 states have internal predecessors, (15584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:23:20,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3128 states to 3128 states and 15584 transitions. [2021-03-11 14:23:20,468 INFO L78 Accepts]: Start accepts. Automaton has 3128 states and 15584 transitions. Word has length 31 [2021-03-11 14:23:20,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:23:20,468 INFO L480 AbstractCegarLoop]: Abstraction has 3128 states and 15584 transitions. [2021-03-11 14:23:20,468 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:23:20,469 INFO L276 IsEmpty]: Start isEmpty. Operand 3128 states and 15584 transitions. [2021-03-11 14:23:20,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:23:20,473 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:23:20,473 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:23:20,473 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable517 [2021-03-11 14:23:20,473 INFO L428 AbstractCegarLoop]: === Iteration 519 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:23:20,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:23:20,474 INFO L82 PathProgramCache]: Analyzing trace with hash 1488779359, now seen corresponding path program 510 times [2021-03-11 14:23:20,474 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:23:20,474 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [99148654] [2021-03-11 14:23:20,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:23:20,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:23:20,485 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:23:20,486 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:23:20,487 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:23:20,488 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:23:20,498 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:23:20,499 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:23:20,517 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:23:20,517 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:23:20,544 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:23:20,544 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:23:20,579 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:23:20,580 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:23:20,623 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:23:20,623 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:23:20,675 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:23:20,676 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:23:20,774 INFO L142 QuantifierPusher]: treesize reduction 45, result has 59.1 percent of original size [2021-03-11 14:23:20,775 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:23:20,891 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:23:20,892 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:23:20,976 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:23:20,977 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:23:21,053 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:23:21,053 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [99148654] [2021-03-11 14:23:21,053 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:23:21,053 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:23:21,053 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1320934904] [2021-03-11 14:23:21,053 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:23:21,053 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:23:21,053 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:23:21,053 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:23:21,053 INFO L87 Difference]: Start difference. First operand 3128 states and 15584 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:23:21,407 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 39 [2021-03-11 14:23:21,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:23:21,443 INFO L93 Difference]: Finished difference Result 6008 states and 26785 transitions. [2021-03-11 14:23:21,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:23:21,446 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:23:21,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:23:21,459 INFO L225 Difference]: With dead ends: 6008 [2021-03-11 14:23:21,459 INFO L226 Difference]: Without dead ends: 5980 [2021-03-11 14:23:21,459 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 675.5ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:23:21,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5980 states. [2021-03-11 14:23:21,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5980 to 3117. [2021-03-11 14:23:21,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3117 states, 3116 states have (on average 4.9932605905006415) internal successors, (15559), 3116 states have internal predecessors, (15559), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:23:21,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3117 states to 3117 states and 15559 transitions. [2021-03-11 14:23:21,600 INFO L78 Accepts]: Start accepts. Automaton has 3117 states and 15559 transitions. Word has length 31 [2021-03-11 14:23:21,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:23:21,601 INFO L480 AbstractCegarLoop]: Abstraction has 3117 states and 15559 transitions. [2021-03-11 14:23:21,601 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:23:21,601 INFO L276 IsEmpty]: Start isEmpty. Operand 3117 states and 15559 transitions. [2021-03-11 14:23:21,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:23:21,606 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:23:21,606 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:23:21,606 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable518 [2021-03-11 14:23:21,606 INFO L428 AbstractCegarLoop]: === Iteration 520 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:23:21,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:23:21,606 INFO L82 PathProgramCache]: Analyzing trace with hash -1073861845, now seen corresponding path program 511 times [2021-03-11 14:23:21,606 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:23:21,606 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [924233570] [2021-03-11 14:23:21,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:23:21,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:23:21,618 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:23:21,619 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:23:21,620 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:23:21,620 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:23:21,632 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:23:21,633 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:23:21,653 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:23:21,654 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:23:21,684 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:23:21,684 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:23:21,724 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:23:21,725 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:23:21,773 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:23:21,774 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:23:21,832 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:23:21,833 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:23:21,945 INFO L142 QuantifierPusher]: treesize reduction 45, result has 59.1 percent of original size [2021-03-11 14:23:21,946 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:23:22,071 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:23:22,072 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:23:22,167 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:23:22,168 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:23:22,253 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:23:22,253 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [924233570] [2021-03-11 14:23:22,253 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:23:22,253 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:23:22,253 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312729693] [2021-03-11 14:23:22,253 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:23:22,253 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:23:22,254 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:23:22,254 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:23:22,254 INFO L87 Difference]: Start difference. First operand 3117 states and 15559 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:23:22,627 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 38 [2021-03-11 14:23:22,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:23:22,658 INFO L93 Difference]: Finished difference Result 6009 states and 26799 transitions. [2021-03-11 14:23:22,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:23:22,660 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:23:22,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:23:22,674 INFO L225 Difference]: With dead ends: 6009 [2021-03-11 14:23:22,675 INFO L226 Difference]: Without dead ends: 5993 [2021-03-11 14:23:22,675 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 741.6ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:23:22,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5993 states. [2021-03-11 14:23:22,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5993 to 3127. [2021-03-11 14:23:22,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3127 states, 3126 states have (on average 4.986244401791427) internal successors, (15587), 3126 states have internal predecessors, (15587), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:23:22,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3127 states to 3127 states and 15587 transitions. [2021-03-11 14:23:22,818 INFO L78 Accepts]: Start accepts. Automaton has 3127 states and 15587 transitions. Word has length 31 [2021-03-11 14:23:22,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:23:22,818 INFO L480 AbstractCegarLoop]: Abstraction has 3127 states and 15587 transitions. [2021-03-11 14:23:22,818 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:23:22,819 INFO L276 IsEmpty]: Start isEmpty. Operand 3127 states and 15587 transitions. [2021-03-11 14:23:22,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:23:22,824 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:23:22,824 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:23:22,824 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable519 [2021-03-11 14:23:22,824 INFO L428 AbstractCegarLoop]: === Iteration 521 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:23:22,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:23:22,824 INFO L82 PathProgramCache]: Analyzing trace with hash -1918833297, now seen corresponding path program 512 times [2021-03-11 14:23:22,824 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:23:22,824 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2041431035] [2021-03-11 14:23:22,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:23:22,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:23:22,836 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:23:22,837 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:23:22,838 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:23:22,839 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:23:22,851 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:23:22,852 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:23:22,871 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:23:22,872 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:23:22,901 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:23:22,902 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:23:22,941 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:23:22,942 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:23:22,989 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:23:22,990 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:23:23,047 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:23:23,048 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:23:23,159 INFO L142 QuantifierPusher]: treesize reduction 45, result has 59.1 percent of original size [2021-03-11 14:23:23,160 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:23:23,281 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:23:23,282 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:23:23,376 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:23:23,377 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:23:23,459 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:23:23,459 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2041431035] [2021-03-11 14:23:23,459 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:23:23,459 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:23:23,459 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [885049915] [2021-03-11 14:23:23,459 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:23:23,459 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:23:23,460 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:23:23,460 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:23:23,460 INFO L87 Difference]: Start difference. First operand 3127 states and 15587 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:23:23,845 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 41 [2021-03-11 14:23:23,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:23:23,875 INFO L93 Difference]: Finished difference Result 6013 states and 26802 transitions. [2021-03-11 14:23:23,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:23:23,877 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:23:23,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:23:23,890 INFO L225 Difference]: With dead ends: 6013 [2021-03-11 14:23:23,890 INFO L226 Difference]: Without dead ends: 5988 [2021-03-11 14:23:23,890 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 731.1ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:23:23,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5988 states. [2021-03-11 14:23:24,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5988 to 3122. [2021-03-11 14:23:24,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3122 states, 3121 states have (on average 4.9897468760012815) internal successors, (15573), 3121 states have internal predecessors, (15573), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:23:24,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3122 states to 3122 states and 15573 transitions. [2021-03-11 14:23:24,025 INFO L78 Accepts]: Start accepts. Automaton has 3122 states and 15573 transitions. Word has length 31 [2021-03-11 14:23:24,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:23:24,026 INFO L480 AbstractCegarLoop]: Abstraction has 3122 states and 15573 transitions. [2021-03-11 14:23:24,026 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:23:24,026 INFO L276 IsEmpty]: Start isEmpty. Operand 3122 states and 15573 transitions. [2021-03-11 14:23:24,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:23:24,030 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:23:24,030 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:23:24,031 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable520 [2021-03-11 14:23:24,031 INFO L428 AbstractCegarLoop]: === Iteration 522 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:23:24,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:23:24,031 INFO L82 PathProgramCache]: Analyzing trace with hash 1523860507, now seen corresponding path program 513 times [2021-03-11 14:23:24,031 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:23:24,031 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1895132936] [2021-03-11 14:23:24,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:23:24,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:23:24,042 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:23:24,043 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:23:24,044 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:23:24,045 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:23:24,055 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:23:24,056 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:23:24,075 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:23:24,076 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:23:24,102 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:23:24,103 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:23:24,138 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:23:24,139 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:23:24,182 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:23:24,183 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:23:24,235 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:23:24,236 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:23:24,338 INFO L142 QuantifierPusher]: treesize reduction 45, result has 59.1 percent of original size [2021-03-11 14:23:24,339 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:23:24,457 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:23:24,458 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:23:24,543 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:23:24,544 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:23:24,621 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:23:24,621 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1895132936] [2021-03-11 14:23:24,621 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:23:24,621 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:23:24,621 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2142411495] [2021-03-11 14:23:24,621 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:23:24,621 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:23:24,621 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:23:24,621 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:23:24,622 INFO L87 Difference]: Start difference. First operand 3122 states and 15573 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:23:25,010 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 38 [2021-03-11 14:23:25,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:23:25,038 INFO L93 Difference]: Finished difference Result 6008 states and 26792 transitions. [2021-03-11 14:23:25,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:23:25,040 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:23:25,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:23:25,053 INFO L225 Difference]: With dead ends: 6008 [2021-03-11 14:23:25,053 INFO L226 Difference]: Without dead ends: 5992 [2021-03-11 14:23:25,053 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 679.8ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:23:25,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5992 states. [2021-03-11 14:23:25,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5992 to 3127. [2021-03-11 14:23:25,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3127 states, 3126 states have (on average 4.984644913627639) internal successors, (15582), 3126 states have internal predecessors, (15582), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:23:25,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3127 states to 3127 states and 15582 transitions. [2021-03-11 14:23:25,187 INFO L78 Accepts]: Start accepts. Automaton has 3127 states and 15582 transitions. Word has length 31 [2021-03-11 14:23:25,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:23:25,187 INFO L480 AbstractCegarLoop]: Abstraction has 3127 states and 15582 transitions. [2021-03-11 14:23:25,187 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:23:25,187 INFO L276 IsEmpty]: Start isEmpty. Operand 3127 states and 15582 transitions. [2021-03-11 14:23:25,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:23:25,192 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:23:25,192 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:23:25,192 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable521 [2021-03-11 14:23:25,192 INFO L428 AbstractCegarLoop]: === Iteration 523 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:23:25,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:23:25,192 INFO L82 PathProgramCache]: Analyzing trace with hash 1593970543, now seen corresponding path program 514 times [2021-03-11 14:23:25,192 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:23:25,192 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [278202718] [2021-03-11 14:23:25,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:23:25,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:23:25,204 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:23:25,205 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:23:25,206 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:23:25,206 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:23:25,217 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:23:25,218 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:23:25,236 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:23:25,236 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:23:25,263 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:23:25,264 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:23:25,299 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:23:25,300 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:23:25,343 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:23:25,344 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:23:25,396 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:23:25,397 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:23:25,502 INFO L142 QuantifierPusher]: treesize reduction 45, result has 59.1 percent of original size [2021-03-11 14:23:25,502 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:23:25,621 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:23:25,622 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:23:25,707 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:23:25,708 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:23:25,785 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:23:25,785 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [278202718] [2021-03-11 14:23:25,785 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:23:25,785 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:23:25,785 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1216384409] [2021-03-11 14:23:25,785 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:23:25,785 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:23:25,785 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:23:25,786 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:23:25,786 INFO L87 Difference]: Start difference. First operand 3127 states and 15582 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:23:26,118 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 41 [2021-03-11 14:23:26,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:23:26,153 INFO L93 Difference]: Finished difference Result 6011 states and 26793 transitions. [2021-03-11 14:23:26,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:23:26,155 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:23:26,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:23:26,168 INFO L225 Difference]: With dead ends: 6011 [2021-03-11 14:23:26,168 INFO L226 Difference]: Without dead ends: 5987 [2021-03-11 14:23:26,168 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 689.4ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:23:26,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5987 states. [2021-03-11 14:23:26,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5987 to 3122. [2021-03-11 14:23:26,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3122 states, 3121 states have (on average 4.988144825376482) internal successors, (15568), 3121 states have internal predecessors, (15568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:23:26,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3122 states to 3122 states and 15568 transitions. [2021-03-11 14:23:26,303 INFO L78 Accepts]: Start accepts. Automaton has 3122 states and 15568 transitions. Word has length 31 [2021-03-11 14:23:26,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:23:26,303 INFO L480 AbstractCegarLoop]: Abstraction has 3122 states and 15568 transitions. [2021-03-11 14:23:26,303 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:23:26,303 INFO L276 IsEmpty]: Start isEmpty. Operand 3122 states and 15568 transitions. [2021-03-11 14:23:26,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:23:26,308 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:23:26,308 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:23:26,308 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable522 [2021-03-11 14:23:26,308 INFO L428 AbstractCegarLoop]: === Iteration 524 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:23:26,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:23:26,308 INFO L82 PathProgramCache]: Analyzing trace with hash 254577819, now seen corresponding path program 515 times [2021-03-11 14:23:26,308 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:23:26,308 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [212877042] [2021-03-11 14:23:26,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:23:26,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:23:26,320 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:23:26,320 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:23:26,321 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:23:26,322 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:23:26,333 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:23:26,333 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:23:26,351 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:23:26,352 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:23:26,379 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:23:26,379 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:23:26,416 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:23:26,417 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:23:26,460 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:23:26,461 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:23:26,512 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:23:26,513 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:23:26,615 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:23:26,616 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:23:26,692 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:23:26,693 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:23:26,778 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:23:26,779 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:23:26,855 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:23:26,856 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [212877042] [2021-03-11 14:23:26,856 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:23:26,856 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:23:26,856 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1092123681] [2021-03-11 14:23:26,856 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:23:26,856 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:23:26,856 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:23:26,856 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:23:26,856 INFO L87 Difference]: Start difference. First operand 3122 states and 15568 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:23:27,223 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 41 [2021-03-11 14:23:27,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:23:27,251 INFO L93 Difference]: Finished difference Result 6019 states and 26812 transitions. [2021-03-11 14:23:27,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:23:27,253 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:23:27,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:23:27,266 INFO L225 Difference]: With dead ends: 6019 [2021-03-11 14:23:27,267 INFO L226 Difference]: Without dead ends: 5999 [2021-03-11 14:23:27,267 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 644.0ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:23:27,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5999 states. [2021-03-11 14:23:27,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5999 to 3130. [2021-03-11 14:23:27,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3130 states, 3129 states have (on average 4.980185362735698) internal successors, (15583), 3129 states have internal predecessors, (15583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:23:27,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3130 states to 3130 states and 15583 transitions. [2021-03-11 14:23:27,409 INFO L78 Accepts]: Start accepts. Automaton has 3130 states and 15583 transitions. Word has length 31 [2021-03-11 14:23:27,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:23:27,409 INFO L480 AbstractCegarLoop]: Abstraction has 3130 states and 15583 transitions. [2021-03-11 14:23:27,409 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:23:27,409 INFO L276 IsEmpty]: Start isEmpty. Operand 3130 states and 15583 transitions. [2021-03-11 14:23:27,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:23:27,414 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:23:27,414 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:23:27,415 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable523 [2021-03-11 14:23:27,415 INFO L428 AbstractCegarLoop]: === Iteration 525 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:23:27,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:23:27,415 INFO L82 PathProgramCache]: Analyzing trace with hash 1169659307, now seen corresponding path program 516 times [2021-03-11 14:23:27,415 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:23:27,415 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [243105466] [2021-03-11 14:23:27,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:23:27,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:23:27,427 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:23:27,427 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:23:27,428 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:23:27,429 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:23:27,440 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:23:27,440 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:23:27,459 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:23:27,459 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:23:27,486 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:23:27,487 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:23:27,522 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:23:27,523 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:23:27,567 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:23:27,568 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:23:27,623 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:23:27,624 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:23:27,728 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:23:27,729 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:23:27,806 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:23:27,807 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:23:27,894 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:23:27,895 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:23:27,971 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:23:27,971 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [243105466] [2021-03-11 14:23:27,971 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:23:27,971 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:23:27,971 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312575101] [2021-03-11 14:23:27,971 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:23:27,971 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:23:27,971 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:23:27,972 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:23:27,972 INFO L87 Difference]: Start difference. First operand 3130 states and 15583 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:23:28,344 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 41 [2021-03-11 14:23:28,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:23:28,378 INFO L93 Difference]: Finished difference Result 6018 states and 26802 transitions. [2021-03-11 14:23:28,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:23:28,381 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:23:28,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:23:28,394 INFO L225 Difference]: With dead ends: 6018 [2021-03-11 14:23:28,394 INFO L226 Difference]: Without dead ends: 5986 [2021-03-11 14:23:28,394 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 650.6ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:23:28,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5986 states. [2021-03-11 14:23:28,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5986 to 3117. [2021-03-11 14:23:28,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3117 states, 3116 states have (on average 4.991655969191271) internal successors, (15554), 3116 states have internal predecessors, (15554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:23:28,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3117 states to 3117 states and 15554 transitions. [2021-03-11 14:23:28,531 INFO L78 Accepts]: Start accepts. Automaton has 3117 states and 15554 transitions. Word has length 31 [2021-03-11 14:23:28,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:23:28,531 INFO L480 AbstractCegarLoop]: Abstraction has 3117 states and 15554 transitions. [2021-03-11 14:23:28,531 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:23:28,531 INFO L276 IsEmpty]: Start isEmpty. Operand 3117 states and 15554 transitions. [2021-03-11 14:23:28,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:23:28,535 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:23:28,535 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:23:28,536 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable524 [2021-03-11 14:23:28,536 INFO L428 AbstractCegarLoop]: === Iteration 526 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:23:28,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:23:28,536 INFO L82 PathProgramCache]: Analyzing trace with hash -1766919509, now seen corresponding path program 517 times [2021-03-11 14:23:28,536 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:23:28,536 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1080581374] [2021-03-11 14:23:28,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:23:28,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:23:28,547 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:23:28,548 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:23:28,549 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:23:28,550 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:23:28,561 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:23:28,561 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:23:28,580 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:23:28,580 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:23:28,607 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:23:28,608 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:23:28,643 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:23:28,644 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:23:28,688 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:23:28,689 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:23:28,742 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:23:28,743 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:23:28,806 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:23:28,807 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:23:28,880 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:23:28,881 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:23:28,965 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:23:28,966 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:23:29,042 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:23:29,042 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1080581374] [2021-03-11 14:23:29,043 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:23:29,043 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:23:29,043 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1225553215] [2021-03-11 14:23:29,043 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:23:29,043 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:23:29,043 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:23:29,043 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:23:29,043 INFO L87 Difference]: Start difference. First operand 3117 states and 15554 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:23:29,441 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 38 [2021-03-11 14:23:29,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:23:29,469 INFO L93 Difference]: Finished difference Result 6001 states and 26776 transitions. [2021-03-11 14:23:29,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:23:29,471 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:23:29,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:23:29,483 INFO L225 Difference]: With dead ends: 6001 [2021-03-11 14:23:29,484 INFO L226 Difference]: Without dead ends: 5985 [2021-03-11 14:23:29,484 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 593.7ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:23:29,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5985 states. [2021-03-11 14:23:29,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5985 to 3127. [2021-03-11 14:23:29,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3127 states, 3126 states have (on average 4.984644913627639) internal successors, (15582), 3126 states have internal predecessors, (15582), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:23:29,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3127 states to 3127 states and 15582 transitions. [2021-03-11 14:23:29,648 INFO L78 Accepts]: Start accepts. Automaton has 3127 states and 15582 transitions. Word has length 31 [2021-03-11 14:23:29,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:23:29,648 INFO L480 AbstractCegarLoop]: Abstraction has 3127 states and 15582 transitions. [2021-03-11 14:23:29,648 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:23:29,648 INFO L276 IsEmpty]: Start isEmpty. Operand 3127 states and 15582 transitions. [2021-03-11 14:23:29,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:23:29,652 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:23:29,653 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:23:29,653 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable525 [2021-03-11 14:23:29,653 INFO L428 AbstractCegarLoop]: === Iteration 527 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:23:29,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:23:29,653 INFO L82 PathProgramCache]: Analyzing trace with hash 838104883, now seen corresponding path program 518 times [2021-03-11 14:23:29,653 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:23:29,653 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1774468910] [2021-03-11 14:23:29,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:23:29,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:23:29,665 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:23:29,666 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:23:29,667 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:23:29,667 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:23:29,678 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:23:29,679 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:23:29,697 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:23:29,698 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:23:29,724 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:23:29,725 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:23:29,759 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:23:29,760 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:23:29,802 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:23:29,803 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:23:29,854 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:23:29,855 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:23:29,915 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:23:29,916 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:23:29,988 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:23:29,989 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:23:30,075 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:23:30,076 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:23:30,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:23:30,157 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1774468910] [2021-03-11 14:23:30,157 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:23:30,157 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:23:30,157 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [5956604] [2021-03-11 14:23:30,157 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:23:30,157 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:23:30,158 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:23:30,158 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:23:30,158 INFO L87 Difference]: Start difference. First operand 3127 states and 15582 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:23:30,597 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 39 [2021-03-11 14:23:30,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:23:30,631 INFO L93 Difference]: Finished difference Result 6002 states and 26773 transitions. [2021-03-11 14:23:30,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:23:30,633 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:23:30,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:23:30,647 INFO L225 Difference]: With dead ends: 6002 [2021-03-11 14:23:30,647 INFO L226 Difference]: Without dead ends: 5980 [2021-03-11 14:23:30,647 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 593.0ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:23:30,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5980 states. [2021-03-11 14:23:30,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5980 to 3122. [2021-03-11 14:23:30,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3122 states, 3121 states have (on average 4.988144825376482) internal successors, (15568), 3121 states have internal predecessors, (15568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:23:30,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3122 states to 3122 states and 15568 transitions. [2021-03-11 14:23:30,783 INFO L78 Accepts]: Start accepts. Automaton has 3122 states and 15568 transitions. Word has length 31 [2021-03-11 14:23:30,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:23:30,783 INFO L480 AbstractCegarLoop]: Abstraction has 3122 states and 15568 transitions. [2021-03-11 14:23:30,783 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:23:30,783 INFO L276 IsEmpty]: Start isEmpty. Operand 3122 states and 15568 transitions. [2021-03-11 14:23:30,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:23:30,788 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:23:30,788 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:23:30,788 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable526 [2021-03-11 14:23:30,788 INFO L428 AbstractCegarLoop]: === Iteration 528 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:23:30,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:23:30,788 INFO L82 PathProgramCache]: Analyzing trace with hash 1255114079, now seen corresponding path program 519 times [2021-03-11 14:23:30,788 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:23:30,788 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1838850752] [2021-03-11 14:23:30,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:23:30,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:23:30,801 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:23:30,801 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:23:30,802 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:23:30,803 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:23:30,814 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:23:30,815 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:23:30,833 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:23:30,834 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:23:30,860 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:23:30,861 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:23:30,897 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:23:30,898 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:23:30,943 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:23:30,944 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:23:30,999 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:23:31,000 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:23:31,066 INFO L142 QuantifierPusher]: treesize reduction 45, result has 59.1 percent of original size [2021-03-11 14:23:31,067 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:23:31,193 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:23:31,194 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:23:31,280 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:23:31,281 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:23:31,360 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:23:31,360 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1838850752] [2021-03-11 14:23:31,360 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:23:31,360 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:23:31,361 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1552267038] [2021-03-11 14:23:31,361 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:23:31,361 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:23:31,361 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:23:31,361 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:23:31,361 INFO L87 Difference]: Start difference. First operand 3122 states and 15568 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:23:31,760 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 38 [2021-03-11 14:23:31,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:23:31,789 INFO L93 Difference]: Finished difference Result 6003 states and 26775 transitions. [2021-03-11 14:23:31,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:23:31,792 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:23:31,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:23:31,805 INFO L225 Difference]: With dead ends: 6003 [2021-03-11 14:23:31,805 INFO L226 Difference]: Without dead ends: 5987 [2021-03-11 14:23:31,805 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 661.4ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:23:31,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5987 states. [2021-03-11 14:23:31,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5987 to 3127. [2021-03-11 14:23:31,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3127 states, 3126 states have (on average 4.983045425463851) internal successors, (15577), 3126 states have internal predecessors, (15577), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:23:31,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3127 states to 3127 states and 15577 transitions. [2021-03-11 14:23:31,943 INFO L78 Accepts]: Start accepts. Automaton has 3127 states and 15577 transitions. Word has length 31 [2021-03-11 14:23:31,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:23:31,943 INFO L480 AbstractCegarLoop]: Abstraction has 3127 states and 15577 transitions. [2021-03-11 14:23:31,943 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:23:31,944 INFO L276 IsEmpty]: Start isEmpty. Operand 3127 states and 15577 transitions. [2021-03-11 14:23:31,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:23:31,948 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:23:31,948 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:23:31,948 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable527 [2021-03-11 14:23:31,948 INFO L428 AbstractCegarLoop]: === Iteration 529 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:23:31,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:23:31,949 INFO L82 PathProgramCache]: Analyzing trace with hash 1325224115, now seen corresponding path program 520 times [2021-03-11 14:23:31,949 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:23:31,949 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1676784346] [2021-03-11 14:23:31,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:23:31,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:23:31,960 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:23:31,961 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:23:31,962 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:23:31,963 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:23:31,974 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:23:31,975 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:23:31,994 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:23:31,995 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:23:32,022 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:23:32,023 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:23:32,060 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:23:32,061 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:23:32,107 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:23:32,108 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:23:32,161 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:23:32,162 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:23:32,226 INFO L142 QuantifierPusher]: treesize reduction 45, result has 59.1 percent of original size [2021-03-11 14:23:32,227 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:23:32,351 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 31 [2021-03-11 14:23:32,354 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:23:32,355 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:23:32,444 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:23:32,445 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:23:32,521 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:23:32,521 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1676784346] [2021-03-11 14:23:32,522 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:23:32,522 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:23:32,522 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [341040118] [2021-03-11 14:23:32,522 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:23:32,522 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:23:32,522 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:23:32,522 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:23:32,522 INFO L87 Difference]: Start difference. First operand 3127 states and 15577 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:23:32,957 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 41 [2021-03-11 14:23:33,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:23:33,006 INFO L93 Difference]: Finished difference Result 6006 states and 26776 transitions. [2021-03-11 14:23:33,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:23:33,009 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:23:33,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:23:33,023 INFO L225 Difference]: With dead ends: 6006 [2021-03-11 14:23:33,023 INFO L226 Difference]: Without dead ends: 5982 [2021-03-11 14:23:33,023 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 676.8ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:23:33,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5982 states. [2021-03-11 14:23:33,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5982 to 3122. [2021-03-11 14:23:33,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3122 states, 3121 states have (on average 4.986542774751682) internal successors, (15563), 3121 states have internal predecessors, (15563), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:23:33,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3122 states to 3122 states and 15563 transitions. [2021-03-11 14:23:33,167 INFO L78 Accepts]: Start accepts. Automaton has 3122 states and 15563 transitions. Word has length 31 [2021-03-11 14:23:33,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:23:33,167 INFO L480 AbstractCegarLoop]: Abstraction has 3122 states and 15563 transitions. [2021-03-11 14:23:33,167 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:23:33,167 INFO L276 IsEmpty]: Start isEmpty. Operand 3122 states and 15563 transitions. [2021-03-11 14:23:33,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:23:33,172 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:23:33,172 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:23:33,172 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable528 [2021-03-11 14:23:33,172 INFO L428 AbstractCegarLoop]: === Iteration 530 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:23:33,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:23:33,172 INFO L82 PathProgramCache]: Analyzing trace with hash -1283451297, now seen corresponding path program 521 times [2021-03-11 14:23:33,173 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:23:33,173 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [963515612] [2021-03-11 14:23:33,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:23:33,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:23:33,185 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:23:33,186 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:23:33,187 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:23:33,188 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:23:33,200 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:23:33,201 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:23:33,221 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:23:33,222 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:23:33,251 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:23:33,252 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:23:33,292 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:23:33,293 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:23:33,341 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:23:33,342 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:23:33,399 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:23:33,400 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:23:33,468 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:23:33,469 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:23:33,550 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:23:33,551 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:23:33,646 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:23:33,647 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:23:33,732 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:23:33,732 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [963515612] [2021-03-11 14:23:33,732 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:23:33,732 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:23:33,732 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1165830083] [2021-03-11 14:23:33,732 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:23:33,732 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:23:33,732 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:23:33,733 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:23:33,733 INFO L87 Difference]: Start difference. First operand 3122 states and 15563 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:23:34,147 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 39 [2021-03-11 14:23:34,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:23:34,181 INFO L93 Difference]: Finished difference Result 6006 states and 26777 transitions. [2021-03-11 14:23:34,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:23:34,183 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:23:34,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:23:34,197 INFO L225 Difference]: With dead ends: 6006 [2021-03-11 14:23:34,197 INFO L226 Difference]: Without dead ends: 5989 [2021-03-11 14:23:34,197 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 653.9ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:23:34,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5989 states. [2021-03-11 14:23:34,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5989 to 3128. [2021-03-11 14:23:34,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3128 states, 3127 states have (on average 4.980492484809722) internal successors, (15574), 3127 states have internal predecessors, (15574), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:23:34,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3128 states to 3128 states and 15574 transitions. [2021-03-11 14:23:34,340 INFO L78 Accepts]: Start accepts. Automaton has 3128 states and 15574 transitions. Word has length 31 [2021-03-11 14:23:34,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:23:34,341 INFO L480 AbstractCegarLoop]: Abstraction has 3128 states and 15574 transitions. [2021-03-11 14:23:34,341 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:23:34,341 INFO L276 IsEmpty]: Start isEmpty. Operand 3128 states and 15574 transitions. [2021-03-11 14:23:34,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:23:34,346 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:23:34,346 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:23:34,346 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable529 [2021-03-11 14:23:34,346 INFO L428 AbstractCegarLoop]: === Iteration 531 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:23:34,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:23:34,346 INFO L82 PathProgramCache]: Analyzing trace with hash 476601643, now seen corresponding path program 522 times [2021-03-11 14:23:34,346 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:23:34,346 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2075387751] [2021-03-11 14:23:34,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:23:34,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:23:34,359 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:23:34,360 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:23:34,361 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:23:34,362 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:23:34,373 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:23:34,374 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:23:34,394 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:23:34,395 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:23:34,424 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:23:34,425 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:23:34,464 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:23:34,465 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:23:34,512 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:23:34,513 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:23:34,569 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:23:34,571 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:23:34,639 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:23:34,640 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:23:34,721 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:23:34,722 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:23:34,818 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:23:34,819 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:23:34,904 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:23:34,904 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2075387751] [2021-03-11 14:23:34,904 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:23:34,904 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:23:34,904 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1868723645] [2021-03-11 14:23:34,904 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:23:34,905 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:23:34,905 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:23:34,905 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:23:34,905 INFO L87 Difference]: Start difference. First operand 3128 states and 15574 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:23:35,327 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 41 [2021-03-11 14:23:35,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:23:35,364 INFO L93 Difference]: Finished difference Result 6008 states and 26775 transitions. [2021-03-11 14:23:35,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:23:35,367 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:23:35,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:23:35,379 INFO L225 Difference]: With dead ends: 6008 [2021-03-11 14:23:35,380 INFO L226 Difference]: Without dead ends: 5978 [2021-03-11 14:23:35,380 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 651.7ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:23:35,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5978 states. [2021-03-11 14:23:35,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5978 to 3117. [2021-03-11 14:23:35,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3117 states, 3116 states have (on average 4.9900513478818995) internal successors, (15549), 3116 states have internal predecessors, (15549), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:23:35,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3117 states to 3117 states and 15549 transitions. [2021-03-11 14:23:35,515 INFO L78 Accepts]: Start accepts. Automaton has 3117 states and 15549 transitions. Word has length 31 [2021-03-11 14:23:35,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:23:35,515 INFO L480 AbstractCegarLoop]: Abstraction has 3117 states and 15549 transitions. [2021-03-11 14:23:35,515 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:23:35,515 INFO L276 IsEmpty]: Start isEmpty. Operand 3117 states and 15549 transitions. [2021-03-11 14:23:35,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:23:35,520 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:23:35,520 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:23:35,520 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable530 [2021-03-11 14:23:35,520 INFO L428 AbstractCegarLoop]: === Iteration 532 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:23:35,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:23:35,520 INFO L82 PathProgramCache]: Analyzing trace with hash 990018671, now seen corresponding path program 523 times [2021-03-11 14:23:35,520 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:23:35,520 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1385462831] [2021-03-11 14:23:35,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:23:35,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:23:35,532 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:23:35,533 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:23:35,534 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:23:35,534 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:23:35,545 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:23:35,546 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:23:35,564 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:23:35,565 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:23:35,592 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:23:35,592 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:23:35,628 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:23:35,629 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:23:35,672 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:23:35,673 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:23:35,726 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:23:35,727 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:23:35,790 INFO L142 QuantifierPusher]: treesize reduction 45, result has 59.1 percent of original size [2021-03-11 14:23:35,791 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:23:35,910 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:23:35,911 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:23:35,998 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:23:35,999 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:23:36,076 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:23:36,077 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1385462831] [2021-03-11 14:23:36,077 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:23:36,077 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:23:36,077 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [368309705] [2021-03-11 14:23:36,077 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:23:36,077 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:23:36,077 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:23:36,077 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:23:36,077 INFO L87 Difference]: Start difference. First operand 3117 states and 15549 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:23:36,622 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 41 [2021-03-11 14:23:36,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:23:36,649 INFO L93 Difference]: Finished difference Result 6019 states and 26814 transitions. [2021-03-11 14:23:36,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:23:36,651 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:23:36,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:23:36,665 INFO L225 Difference]: With dead ends: 6019 [2021-03-11 14:23:36,665 INFO L226 Difference]: Without dead ends: 5999 [2021-03-11 14:23:36,665 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 653.2ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:23:36,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5999 states. [2021-03-11 14:23:36,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5999 to 3129. [2021-03-11 14:23:36,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3129 states, 3128 states have (on average 4.981777493606138) internal successors, (15583), 3128 states have internal predecessors, (15583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:23:36,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3129 states to 3129 states and 15583 transitions. [2021-03-11 14:23:36,799 INFO L78 Accepts]: Start accepts. Automaton has 3129 states and 15583 transitions. Word has length 31 [2021-03-11 14:23:36,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:23:36,799 INFO L480 AbstractCegarLoop]: Abstraction has 3129 states and 15583 transitions. [2021-03-11 14:23:36,799 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:23:36,799 INFO L276 IsEmpty]: Start isEmpty. Operand 3129 states and 15583 transitions. [2021-03-11 14:23:36,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:23:36,804 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:23:36,804 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:23:36,804 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable531 [2021-03-11 14:23:36,804 INFO L428 AbstractCegarLoop]: === Iteration 533 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:23:36,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:23:36,804 INFO L82 PathProgramCache]: Analyzing trace with hash 145047219, now seen corresponding path program 524 times [2021-03-11 14:23:36,805 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:23:36,805 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2064161239] [2021-03-11 14:23:36,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:23:36,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:23:36,816 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:23:36,817 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:23:36,818 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:23:36,819 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:23:36,829 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:23:36,830 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:23:36,849 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:23:36,849 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:23:36,876 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:23:36,877 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:23:36,913 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:23:36,914 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:23:36,958 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:23:36,959 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:23:37,011 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:23:37,012 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:23:37,074 INFO L142 QuantifierPusher]: treesize reduction 45, result has 59.1 percent of original size [2021-03-11 14:23:37,075 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:23:37,194 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:23:37,195 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:23:37,280 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:23:37,281 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:23:37,358 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:23:37,358 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2064161239] [2021-03-11 14:23:37,358 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:23:37,358 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:23:37,358 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217495277] [2021-03-11 14:23:37,358 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:23:37,358 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:23:37,358 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:23:37,358 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:23:37,358 INFO L87 Difference]: Start difference. First operand 3129 states and 15583 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:23:37,908 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 39 [2021-03-11 14:23:37,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:23:37,941 INFO L93 Difference]: Finished difference Result 6016 states and 26802 transitions. [2021-03-11 14:23:37,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:23:37,943 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:23:37,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:23:37,956 INFO L225 Difference]: With dead ends: 6016 [2021-03-11 14:23:37,957 INFO L226 Difference]: Without dead ends: 5993 [2021-03-11 14:23:37,957 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 644.8ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:23:38,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5993 states. [2021-03-11 14:23:38,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5993 to 3123. [2021-03-11 14:23:38,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3123 states, 3122 states have (on average 4.985906470211403) internal successors, (15566), 3122 states have internal predecessors, (15566), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:23:38,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3123 states to 3123 states and 15566 transitions. [2021-03-11 14:23:38,093 INFO L78 Accepts]: Start accepts. Automaton has 3123 states and 15566 transitions. Word has length 31 [2021-03-11 14:23:38,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:23:38,093 INFO L480 AbstractCegarLoop]: Abstraction has 3123 states and 15566 transitions. [2021-03-11 14:23:38,094 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:23:38,094 INFO L276 IsEmpty]: Start isEmpty. Operand 3123 states and 15566 transitions. [2021-03-11 14:23:38,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:23:38,098 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:23:38,098 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:23:38,098 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable532 [2021-03-11 14:23:38,099 INFO L428 AbstractCegarLoop]: === Iteration 534 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:23:38,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:23:38,099 INFO L82 PathProgramCache]: Analyzing trace with hash -282915037, now seen corresponding path program 525 times [2021-03-11 14:23:38,099 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:23:38,099 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2135129697] [2021-03-11 14:23:38,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:23:38,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:23:38,111 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:23:38,112 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:23:38,112 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:23:38,113 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:23:38,124 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:23:38,125 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:23:38,144 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:23:38,145 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:23:38,171 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:23:38,172 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:23:38,208 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:23:38,209 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:23:38,254 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:23:38,254 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:23:38,307 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:23:38,308 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:23:38,371 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:23:38,372 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:23:38,448 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:23:38,449 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:23:38,535 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:23:38,536 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:23:38,612 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:23:38,612 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2135129697] [2021-03-11 14:23:38,612 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:23:38,612 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:23:38,612 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1137221315] [2021-03-11 14:23:38,612 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:23:38,612 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:23:38,613 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:23:38,613 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:23:38,613 INFO L87 Difference]: Start difference. First operand 3123 states and 15566 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:23:39,010 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 41 [2021-03-11 14:23:39,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:23:39,037 INFO L93 Difference]: Finished difference Result 6023 states and 26818 transitions. [2021-03-11 14:23:39,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:23:39,039 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:23:39,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:23:39,052 INFO L225 Difference]: With dead ends: 6023 [2021-03-11 14:23:39,052 INFO L226 Difference]: Without dead ends: 6003 [2021-03-11 14:23:39,052 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 609.9ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:23:39,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6003 states. [2021-03-11 14:23:39,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6003 to 3131. [2021-03-11 14:23:39,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3131 states, 3130 states have (on average 4.977955271565495) internal successors, (15581), 3130 states have internal predecessors, (15581), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:23:39,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3131 states to 3131 states and 15581 transitions. [2021-03-11 14:23:39,189 INFO L78 Accepts]: Start accepts. Automaton has 3131 states and 15581 transitions. Word has length 31 [2021-03-11 14:23:39,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:23:39,189 INFO L480 AbstractCegarLoop]: Abstraction has 3131 states and 15581 transitions. [2021-03-11 14:23:39,189 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:23:39,189 INFO L276 IsEmpty]: Start isEmpty. Operand 3131 states and 15581 transitions. [2021-03-11 14:23:39,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:23:39,194 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:23:39,194 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:23:39,194 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable533 [2021-03-11 14:23:39,194 INFO L428 AbstractCegarLoop]: === Iteration 535 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:23:39,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:23:39,194 INFO L82 PathProgramCache]: Analyzing trace with hash 632166451, now seen corresponding path program 526 times [2021-03-11 14:23:39,194 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:23:39,194 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1696756158] [2021-03-11 14:23:39,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:23:39,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:23:39,206 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:23:39,207 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:23:39,208 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:23:39,209 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:23:39,220 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:23:39,220 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:23:39,239 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:23:39,240 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:23:39,267 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:23:39,268 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:23:39,304 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:23:39,305 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:23:39,349 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:23:39,350 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:23:39,403 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:23:39,404 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:23:39,467 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:23:39,468 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:23:39,546 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:23:39,547 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:23:39,634 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:23:39,635 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:23:39,713 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:23:39,713 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1696756158] [2021-03-11 14:23:39,713 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:23:39,713 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:23:39,713 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [828326578] [2021-03-11 14:23:39,713 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:23:39,713 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:23:39,713 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:23:39,713 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:23:39,713 INFO L87 Difference]: Start difference. First operand 3131 states and 15581 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:23:40,264 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 41 [2021-03-11 14:23:40,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:23:40,300 INFO L93 Difference]: Finished difference Result 6022 states and 26808 transitions. [2021-03-11 14:23:40,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:23:40,302 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:23:40,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:23:40,315 INFO L225 Difference]: With dead ends: 6022 [2021-03-11 14:23:40,315 INFO L226 Difference]: Without dead ends: 5995 [2021-03-11 14:23:40,315 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 617.6ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:23:40,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5995 states. [2021-03-11 14:23:40,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5995 to 3123. [2021-03-11 14:23:40,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3123 states, 3122 states have (on average 4.983984625240231) internal successors, (15560), 3122 states have internal predecessors, (15560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:23:40,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3123 states to 3123 states and 15560 transitions. [2021-03-11 14:23:40,450 INFO L78 Accepts]: Start accepts. Automaton has 3123 states and 15560 transitions. Word has length 31 [2021-03-11 14:23:40,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:23:40,450 INFO L480 AbstractCegarLoop]: Abstraction has 3123 states and 15560 transitions. [2021-03-11 14:23:40,450 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:23:40,450 INFO L276 IsEmpty]: Start isEmpty. Operand 3123 states and 15560 transitions. [2021-03-11 14:23:40,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:23:40,455 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:23:40,455 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:23:40,455 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable534 [2021-03-11 14:23:40,455 INFO L428 AbstractCegarLoop]: === Iteration 536 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:23:40,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:23:40,455 INFO L82 PathProgramCache]: Analyzing trace with hash -1552197725, now seen corresponding path program 527 times [2021-03-11 14:23:40,455 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:23:40,455 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [356868036] [2021-03-11 14:23:40,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:23:40,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:23:40,472 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:23:40,473 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:23:40,474 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:23:40,475 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:23:40,490 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:23:40,492 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:23:40,514 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:23:40,515 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:23:40,543 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:23:40,543 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:23:40,580 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:23:40,581 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:23:40,626 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:23:40,627 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:23:40,680 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:23:40,681 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:23:40,745 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:23:40,746 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:23:40,821 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:23:40,822 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:23:40,910 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:23:40,911 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:23:40,990 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:23:40,991 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [356868036] [2021-03-11 14:23:40,991 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:23:40,991 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:23:40,991 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2071783749] [2021-03-11 14:23:40,991 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:23:40,991 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:23:40,991 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:23:40,991 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:23:40,991 INFO L87 Difference]: Start difference. First operand 3123 states and 15560 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:23:41,481 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 39 [2021-03-11 14:23:41,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:23:41,513 INFO L93 Difference]: Finished difference Result 6015 states and 26794 transitions. [2021-03-11 14:23:41,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:23:41,515 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:23:41,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:23:41,528 INFO L225 Difference]: With dead ends: 6015 [2021-03-11 14:23:41,528 INFO L226 Difference]: Without dead ends: 5998 [2021-03-11 14:23:41,528 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 617.2ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:23:41,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5998 states. [2021-03-11 14:23:41,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5998 to 3129. [2021-03-11 14:23:41,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3129 states, 3128 states have (on average 4.977941176470588) internal successors, (15571), 3128 states have internal predecessors, (15571), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:23:41,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3129 states to 3129 states and 15571 transitions. [2021-03-11 14:23:41,664 INFO L78 Accepts]: Start accepts. Automaton has 3129 states and 15571 transitions. Word has length 31 [2021-03-11 14:23:41,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:23:41,664 INFO L480 AbstractCegarLoop]: Abstraction has 3129 states and 15571 transitions. [2021-03-11 14:23:41,664 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:23:41,664 INFO L276 IsEmpty]: Start isEmpty. Operand 3129 states and 15571 transitions. [2021-03-11 14:23:41,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:23:41,669 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:23:41,669 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:23:41,669 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable535 [2021-03-11 14:23:41,669 INFO L428 AbstractCegarLoop]: === Iteration 537 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:23:41,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:23:41,669 INFO L82 PathProgramCache]: Analyzing trace with hash 207855215, now seen corresponding path program 528 times [2021-03-11 14:23:41,669 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:23:41,669 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1970491517] [2021-03-11 14:23:41,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:23:41,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:23:41,686 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:23:41,687 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:23:41,688 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:23:41,688 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:23:41,700 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:23:41,700 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:23:41,720 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:23:41,721 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:23:41,748 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:23:41,749 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:23:41,786 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:23:41,787 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:23:41,831 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:23:41,832 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:23:41,886 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:23:41,887 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:23:41,950 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:23:41,951 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:23:42,025 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:23:42,027 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:23:42,116 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:23:42,117 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:23:42,195 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:23:42,195 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1970491517] [2021-03-11 14:23:42,195 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:23:42,195 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:23:42,195 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2071435874] [2021-03-11 14:23:42,195 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:23:42,195 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:23:42,196 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:23:42,196 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:23:42,196 INFO L87 Difference]: Start difference. First operand 3129 states and 15571 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:23:42,521 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 41 [2021-03-11 14:23:42,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:23:42,559 INFO L93 Difference]: Finished difference Result 6017 states and 26792 transitions. [2021-03-11 14:23:42,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:23:42,561 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:23:42,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:23:42,574 INFO L225 Difference]: With dead ends: 6017 [2021-03-11 14:23:42,574 INFO L226 Difference]: Without dead ends: 5981 [2021-03-11 14:23:42,574 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 618.0ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:23:42,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5981 states. [2021-03-11 14:23:42,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5981 to 3112. [2021-03-11 14:23:42,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3112 states, 3111 states have (on average 4.993571198971392) internal successors, (15535), 3111 states have internal predecessors, (15535), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:23:42,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3112 states to 3112 states and 15535 transitions. [2021-03-11 14:23:42,711 INFO L78 Accepts]: Start accepts. Automaton has 3112 states and 15535 transitions. Word has length 31 [2021-03-11 14:23:42,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:23:42,711 INFO L480 AbstractCegarLoop]: Abstraction has 3112 states and 15535 transitions. [2021-03-11 14:23:42,711 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:23:42,711 INFO L276 IsEmpty]: Start isEmpty. Operand 3112 states and 15535 transitions. [2021-03-11 14:23:42,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:23:42,716 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:23:42,716 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:23:42,716 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable536 [2021-03-11 14:23:42,716 INFO L428 AbstractCegarLoop]: === Iteration 538 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:23:42,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:23:42,716 INFO L82 PathProgramCache]: Analyzing trace with hash -292500321, now seen corresponding path program 529 times [2021-03-11 14:23:42,716 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:23:42,716 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [65168478] [2021-03-11 14:23:42,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:23:42,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:23:42,733 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:23:42,734 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:23:42,736 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:23:42,737 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:23:42,750 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:23:42,751 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:23:42,772 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:23:42,773 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:23:42,800 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:23:42,801 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:23:42,838 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:23:42,839 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:23:42,884 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:23:42,885 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:23:42,979 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:23:42,980 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:23:43,084 INFO L142 QuantifierPusher]: treesize reduction 45, result has 59.1 percent of original size [2021-03-11 14:23:43,085 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:23:43,204 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:23:43,205 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:23:43,291 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:23:43,292 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:23:43,372 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:23:43,372 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [65168478] [2021-03-11 14:23:43,372 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:23:43,372 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:23:43,373 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1651773922] [2021-03-11 14:23:43,373 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:23:43,373 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:23:43,373 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:23:43,373 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:23:43,373 INFO L87 Difference]: Start difference. First operand 3112 states and 15535 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:23:43,712 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 38 [2021-03-11 14:23:43,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:23:43,741 INFO L93 Difference]: Finished difference Result 6043 states and 26879 transitions. [2021-03-11 14:23:43,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:23:43,744 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:23:43,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:23:43,756 INFO L225 Difference]: With dead ends: 6043 [2021-03-11 14:23:43,757 INFO L226 Difference]: Without dead ends: 6027 [2021-03-11 14:23:43,757 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 741.1ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:23:43,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6027 states. [2021-03-11 14:23:43,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6027 to 3132. [2021-03-11 14:23:43,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3132 states, 3131 states have (on average 4.9827531140210795) internal successors, (15601), 3131 states have internal predecessors, (15601), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:23:43,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3132 states to 3132 states and 15601 transitions. [2021-03-11 14:23:43,892 INFO L78 Accepts]: Start accepts. Automaton has 3132 states and 15601 transitions. Word has length 31 [2021-03-11 14:23:43,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:23:43,892 INFO L480 AbstractCegarLoop]: Abstraction has 3132 states and 15601 transitions. [2021-03-11 14:23:43,892 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:23:43,892 INFO L276 IsEmpty]: Start isEmpty. Operand 3132 states and 15601 transitions. [2021-03-11 14:23:43,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:23:43,896 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:23:43,897 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:23:43,897 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable537 [2021-03-11 14:23:43,897 INFO L428 AbstractCegarLoop]: === Iteration 539 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:23:43,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:23:43,897 INFO L82 PathProgramCache]: Analyzing trace with hash -1137471773, now seen corresponding path program 530 times [2021-03-11 14:23:43,897 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:23:43,897 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [51189450] [2021-03-11 14:23:43,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:23:43,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:23:43,909 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:23:43,910 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:23:43,911 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:23:43,911 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:23:43,922 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:23:43,923 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:23:43,942 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:23:43,943 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:23:43,970 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:23:43,971 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:23:44,008 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:23:44,009 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:23:44,054 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:23:44,055 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:23:44,148 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:23:44,149 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:23:44,250 INFO L142 QuantifierPusher]: treesize reduction 45, result has 59.1 percent of original size [2021-03-11 14:23:44,251 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:23:44,372 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:23:44,373 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:23:44,464 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:23:44,465 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:23:44,543 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:23:44,544 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [51189450] [2021-03-11 14:23:44,544 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:23:44,544 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:23:44,544 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [688960644] [2021-03-11 14:23:44,544 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:23:44,544 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:23:44,544 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:23:44,544 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:23:44,544 INFO L87 Difference]: Start difference. First operand 3132 states and 15601 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:23:44,880 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 41 [2021-03-11 14:23:44,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:23:44,915 INFO L93 Difference]: Finished difference Result 6047 states and 26882 transitions. [2021-03-11 14:23:44,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:23:44,918 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:23:44,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:23:44,931 INFO L225 Difference]: With dead ends: 6047 [2021-03-11 14:23:44,931 INFO L226 Difference]: Without dead ends: 6022 [2021-03-11 14:23:44,932 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 745.4ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:23:45,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6022 states. [2021-03-11 14:23:45,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6022 to 3127. [2021-03-11 14:23:45,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3127 states, 3126 states have (on average 4.986244401791427) internal successors, (15587), 3126 states have internal predecessors, (15587), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:23:45,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3127 states to 3127 states and 15587 transitions. [2021-03-11 14:23:45,068 INFO L78 Accepts]: Start accepts. Automaton has 3127 states and 15587 transitions. Word has length 31 [2021-03-11 14:23:45,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:23:45,068 INFO L480 AbstractCegarLoop]: Abstraction has 3127 states and 15587 transitions. [2021-03-11 14:23:45,068 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:23:45,068 INFO L276 IsEmpty]: Start isEmpty. Operand 3127 states and 15587 transitions. [2021-03-11 14:23:45,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:23:45,073 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:23:45,073 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:23:45,073 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable538 [2021-03-11 14:23:45,073 INFO L428 AbstractCegarLoop]: === Iteration 540 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:23:45,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:23:45,073 INFO L82 PathProgramCache]: Analyzing trace with hash -1777589647, now seen corresponding path program 531 times [2021-03-11 14:23:45,073 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:23:45,073 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2035300658] [2021-03-11 14:23:45,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:23:45,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:23:45,085 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:23:45,086 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:23:45,087 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:23:45,088 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:23:45,100 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:23:45,100 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:23:45,120 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:23:45,121 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:23:45,149 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:23:45,150 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:23:45,188 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:23:45,189 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:23:45,235 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:23:45,236 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:23:45,331 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:23:45,332 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:23:45,435 INFO L142 QuantifierPusher]: treesize reduction 54, result has 55.4 percent of original size [2021-03-11 14:23:45,436 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-03-11 14:23:45,552 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:23:45,553 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:23:45,640 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:23:45,641 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:23:45,720 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:23:45,720 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2035300658] [2021-03-11 14:23:45,720 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:23:45,720 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:23:45,721 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1494610322] [2021-03-11 14:23:45,721 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:23:45,721 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:23:45,721 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:23:45,721 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:23:45,721 INFO L87 Difference]: Start difference. First operand 3127 states and 15587 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:23:46,097 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 38 [2021-03-11 14:23:46,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:23:46,128 INFO L93 Difference]: Finished difference Result 6046 states and 26879 transitions. [2021-03-11 14:23:46,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:23:46,131 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:23:46,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:23:46,144 INFO L225 Difference]: With dead ends: 6046 [2021-03-11 14:23:46,144 INFO L226 Difference]: Without dead ends: 6030 [2021-03-11 14:23:46,144 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 739.8ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:23:46,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6030 states. [2021-03-11 14:23:46,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6030 to 3133. [2021-03-11 14:23:46,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3133 states, 3132 states have (on average 4.980204342273308) internal successors, (15598), 3132 states have internal predecessors, (15598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:23:46,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3133 states to 3133 states and 15598 transitions. [2021-03-11 14:23:46,281 INFO L78 Accepts]: Start accepts. Automaton has 3133 states and 15598 transitions. Word has length 31 [2021-03-11 14:23:46,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:23:46,281 INFO L480 AbstractCegarLoop]: Abstraction has 3133 states and 15598 transitions. [2021-03-11 14:23:46,281 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:23:46,281 INFO L276 IsEmpty]: Start isEmpty. Operand 3133 states and 15598 transitions. [2021-03-11 14:23:46,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:23:46,286 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:23:46,286 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:23:46,286 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable539 [2021-03-11 14:23:46,286 INFO L428 AbstractCegarLoop]: === Iteration 541 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:23:46,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:23:46,286 INFO L82 PathProgramCache]: Analyzing trace with hash -1284993885, now seen corresponding path program 532 times [2021-03-11 14:23:46,286 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:23:46,286 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1023655084] [2021-03-11 14:23:46,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:23:46,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:23:46,298 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:23:46,299 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:23:46,300 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:23:46,301 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:23:46,314 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:23:46,314 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:23:46,334 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:23:46,335 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:23:46,363 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:23:46,364 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:23:46,402 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:23:46,403 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:23:46,451 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:23:46,452 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:23:46,548 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:23:46,549 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:23:46,653 INFO L142 QuantifierPusher]: treesize reduction 54, result has 55.4 percent of original size [2021-03-11 14:23:46,654 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-03-11 14:23:46,769 INFO L142 QuantifierPusher]: treesize reduction 72, result has 49.7 percent of original size [2021-03-11 14:23:46,770 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-03-11 14:23:46,863 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:23:46,864 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:23:46,943 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:23:46,943 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1023655084] [2021-03-11 14:23:46,943 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:23:46,943 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:23:46,943 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [447595413] [2021-03-11 14:23:46,944 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:23:46,944 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:23:46,944 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:23:46,944 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:23:46,944 INFO L87 Difference]: Start difference. First operand 3133 states and 15598 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:23:47,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:23:47,256 INFO L93 Difference]: Finished difference Result 6052 states and 26885 transitions. [2021-03-11 14:23:47,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:23:47,259 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:23:47,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:23:47,271 INFO L225 Difference]: With dead ends: 6052 [2021-03-11 14:23:47,272 INFO L226 Difference]: Without dead ends: 6024 [2021-03-11 14:23:47,272 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 695.5ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:23:47,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6024 states. [2021-03-11 14:23:47,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6024 to 3127. [2021-03-11 14:23:47,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3127 states, 3126 states have (on average 4.984325015994882) internal successors, (15581), 3126 states have internal predecessors, (15581), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:23:47,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3127 states to 3127 states and 15581 transitions. [2021-03-11 14:23:47,406 INFO L78 Accepts]: Start accepts. Automaton has 3127 states and 15581 transitions. Word has length 31 [2021-03-11 14:23:47,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:23:47,406 INFO L480 AbstractCegarLoop]: Abstraction has 3127 states and 15581 transitions. [2021-03-11 14:23:47,406 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:23:47,406 INFO L276 IsEmpty]: Start isEmpty. Operand 3127 states and 15581 transitions. [2021-03-11 14:23:47,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:23:47,411 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:23:47,411 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:23:47,411 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable540 [2021-03-11 14:23:47,411 INFO L428 AbstractCegarLoop]: === Iteration 542 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:23:47,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:23:47,411 INFO L82 PathProgramCache]: Analyzing trace with hash 1248094961, now seen corresponding path program 533 times [2021-03-11 14:23:47,411 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:23:47,411 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1997271494] [2021-03-11 14:23:47,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:23:47,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:23:47,424 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:23:47,425 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:23:47,426 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:23:47,427 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:23:47,438 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:23:47,439 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:23:47,458 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:23:47,459 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:23:47,486 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:23:47,487 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:23:47,524 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:23:47,525 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:23:47,570 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:23:47,571 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:23:47,668 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:23:47,669 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:23:47,777 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:23:47,779 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:23:47,859 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:23:47,860 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:23:47,950 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:23:47,951 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:23:48,034 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:23:48,034 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1997271494] [2021-03-11 14:23:48,034 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:23:48,034 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:23:48,034 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1469534008] [2021-03-11 14:23:48,034 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:23:48,034 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:23:48,034 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:23:48,035 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:23:48,035 INFO L87 Difference]: Start difference. First operand 3127 states and 15581 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:23:48,386 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 41 [2021-03-11 14:23:48,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:23:48,416 INFO L93 Difference]: Finished difference Result 6059 states and 26902 transitions. [2021-03-11 14:23:48,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:23:48,418 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:23:48,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:23:48,431 INFO L225 Difference]: With dead ends: 6059 [2021-03-11 14:23:48,431 INFO L226 Difference]: Without dead ends: 6039 [2021-03-11 14:23:48,431 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 722.1ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:23:48,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6039 states. [2021-03-11 14:23:48,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6039 to 3138. [2021-03-11 14:23:48,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3138 states, 3137 states have (on average 4.973222824354479) internal successors, (15601), 3137 states have internal predecessors, (15601), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:23:48,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3138 states to 3138 states and 15601 transitions. [2021-03-11 14:23:48,565 INFO L78 Accepts]: Start accepts. Automaton has 3138 states and 15601 transitions. Word has length 31 [2021-03-11 14:23:48,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:23:48,565 INFO L480 AbstractCegarLoop]: Abstraction has 3138 states and 15601 transitions. [2021-03-11 14:23:48,565 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:23:48,565 INFO L276 IsEmpty]: Start isEmpty. Operand 3138 states and 15601 transitions. [2021-03-11 14:23:48,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:23:48,570 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:23:48,570 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:23:48,570 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable541 [2021-03-11 14:23:48,570 INFO L428 AbstractCegarLoop]: === Iteration 543 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:23:48,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:23:48,570 INFO L82 PathProgramCache]: Analyzing trace with hash -1709305121, now seen corresponding path program 534 times [2021-03-11 14:23:48,570 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:23:48,570 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1040351148] [2021-03-11 14:23:48,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:23:48,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:23:48,582 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:23:48,583 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:23:48,584 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:23:48,585 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:23:48,596 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:23:48,597 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:23:48,616 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:23:48,617 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:23:48,646 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:23:48,647 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:23:48,686 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:23:48,687 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:23:48,736 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:23:48,737 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:23:48,830 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:23:48,831 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:23:48,934 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:23:48,935 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:23:49,015 INFO L142 QuantifierPusher]: treesize reduction 72, result has 49.7 percent of original size [2021-03-11 14:23:49,017 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-03-11 14:23:49,109 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:23:49,110 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:23:49,189 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:23:49,189 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1040351148] [2021-03-11 14:23:49,189 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:23:49,189 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:23:49,189 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [637314255] [2021-03-11 14:23:49,189 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:23:49,189 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:23:49,190 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:23:49,190 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:23:49,190 INFO L87 Difference]: Start difference. First operand 3138 states and 15601 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:23:49,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:23:49,549 INFO L93 Difference]: Finished difference Result 6061 states and 26896 transitions. [2021-03-11 14:23:49,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:23:49,552 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:23:49,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:23:49,565 INFO L225 Difference]: With dead ends: 6061 [2021-03-11 14:23:49,565 INFO L226 Difference]: Without dead ends: 6021 [2021-03-11 14:23:49,565 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 653.1ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:23:49,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6021 states. [2021-03-11 14:23:49,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6021 to 3120. [2021-03-11 14:23:49,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3120 states, 3119 states have (on average 4.989099070214812) internal successors, (15561), 3119 states have internal predecessors, (15561), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:23:49,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3120 states to 3120 states and 15561 transitions. [2021-03-11 14:23:49,701 INFO L78 Accepts]: Start accepts. Automaton has 3120 states and 15561 transitions. Word has length 31 [2021-03-11 14:23:49,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:23:49,701 INFO L480 AbstractCegarLoop]: Abstraction has 3120 states and 15561 transitions. [2021-03-11 14:23:49,701 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:23:49,701 INFO L276 IsEmpty]: Start isEmpty. Operand 3120 states and 15561 transitions. [2021-03-11 14:23:49,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:23:49,706 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:23:49,706 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:23:49,706 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable542 [2021-03-11 14:23:49,706 INFO L428 AbstractCegarLoop]: === Iteration 544 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:23:49,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:23:49,706 INFO L82 PathProgramCache]: Analyzing trace with hash 1720610113, now seen corresponding path program 535 times [2021-03-11 14:23:49,707 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:23:49,707 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [245794007] [2021-03-11 14:23:49,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:23:49,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:23:49,718 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:23:49,719 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:23:49,720 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:23:49,721 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:23:49,732 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:23:49,733 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:23:49,753 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:23:49,754 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:23:49,782 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:23:49,783 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:23:49,820 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:23:49,821 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:23:49,867 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:23:49,868 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:23:49,962 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:23:49,963 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:23:50,071 INFO L142 QuantifierPusher]: treesize reduction 45, result has 59.1 percent of original size [2021-03-11 14:23:50,073 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:23:50,192 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:23:50,193 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:23:50,282 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:23:50,283 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:23:50,364 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:23:50,365 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [245794007] [2021-03-11 14:23:50,365 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:23:50,365 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:23:50,365 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2071268334] [2021-03-11 14:23:50,365 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:23:50,365 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:23:50,365 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:23:50,365 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:23:50,365 INFO L87 Difference]: Start difference. First operand 3120 states and 15561 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:23:50,714 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 38 [2021-03-11 14:23:50,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:23:50,744 INFO L93 Difference]: Finished difference Result 6034 states and 26854 transitions. [2021-03-11 14:23:50,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:23:50,747 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:23:50,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:23:50,760 INFO L225 Difference]: With dead ends: 6034 [2021-03-11 14:23:50,760 INFO L226 Difference]: Without dead ends: 6018 [2021-03-11 14:23:50,760 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 751.9ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:23:50,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6018 states. [2021-03-11 14:23:50,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6018 to 3130. [2021-03-11 14:23:50,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3130 states, 3129 states have (on average 4.982102908277405) internal successors, (15589), 3129 states have internal predecessors, (15589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:23:50,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3130 states to 3130 states and 15589 transitions. [2021-03-11 14:23:50,896 INFO L78 Accepts]: Start accepts. Automaton has 3130 states and 15589 transitions. Word has length 31 [2021-03-11 14:23:50,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:23:50,897 INFO L480 AbstractCegarLoop]: Abstraction has 3130 states and 15589 transitions. [2021-03-11 14:23:50,897 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:23:50,897 INFO L276 IsEmpty]: Start isEmpty. Operand 3130 states and 15589 transitions. [2021-03-11 14:23:50,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:23:50,901 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:23:50,901 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:23:50,902 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable543 [2021-03-11 14:23:50,902 INFO L428 AbstractCegarLoop]: === Iteration 545 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:23:50,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:23:50,902 INFO L82 PathProgramCache]: Analyzing trace with hash 875638661, now seen corresponding path program 536 times [2021-03-11 14:23:50,902 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:23:50,902 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1046978841] [2021-03-11 14:23:50,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:23:50,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:23:50,914 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:23:50,915 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:23:50,916 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:23:50,916 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:23:50,928 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:23:50,929 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:23:50,949 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:23:50,950 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:23:50,978 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:23:50,979 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:23:51,018 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:23:51,019 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:23:51,067 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:23:51,069 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:23:51,166 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:23:51,167 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:23:51,277 INFO L142 QuantifierPusher]: treesize reduction 45, result has 59.1 percent of original size [2021-03-11 14:23:51,279 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:23:51,415 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 29 [2021-03-11 14:23:51,417 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:23:51,418 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:23:51,510 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:23:51,511 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:23:51,600 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:23:51,600 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1046978841] [2021-03-11 14:23:51,600 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:23:51,600 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:23:51,601 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1397659122] [2021-03-11 14:23:51,601 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:23:51,601 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:23:51,601 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:23:51,601 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:23:51,601 INFO L87 Difference]: Start difference. First operand 3130 states and 15589 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:23:52,070 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 41 [2021-03-11 14:23:52,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:23:52,106 INFO L93 Difference]: Finished difference Result 6038 states and 26857 transitions. [2021-03-11 14:23:52,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:23:52,108 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:23:52,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:23:52,122 INFO L225 Difference]: With dead ends: 6038 [2021-03-11 14:23:52,122 INFO L226 Difference]: Without dead ends: 6013 [2021-03-11 14:23:52,122 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 814.8ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:23:52,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6013 states. [2021-03-11 14:23:52,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6013 to 3125. [2021-03-11 14:23:52,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3125 states, 3124 states have (on average 4.985595390524968) internal successors, (15575), 3124 states have internal predecessors, (15575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:23:52,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3125 states to 3125 states and 15575 transitions. [2021-03-11 14:23:52,265 INFO L78 Accepts]: Start accepts. Automaton has 3125 states and 15575 transitions. Word has length 31 [2021-03-11 14:23:52,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:23:52,265 INFO L480 AbstractCegarLoop]: Abstraction has 3125 states and 15575 transitions. [2021-03-11 14:23:52,265 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:23:52,265 INFO L276 IsEmpty]: Start isEmpty. Operand 3125 states and 15575 transitions. [2021-03-11 14:23:52,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:23:52,270 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:23:52,270 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:23:52,270 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable544 [2021-03-11 14:23:52,270 INFO L428 AbstractCegarLoop]: === Iteration 546 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:23:52,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:23:52,270 INFO L82 PathProgramCache]: Analyzing trace with hash 23365169, now seen corresponding path program 537 times [2021-03-11 14:23:52,270 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:23:52,270 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1572205977] [2021-03-11 14:23:52,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:23:52,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:23:52,282 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:23:52,283 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:23:52,284 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:23:52,285 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:23:52,298 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:23:52,299 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:23:52,320 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:23:52,321 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:23:52,353 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:23:52,354 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:23:52,396 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:23:52,397 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:23:52,449 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:23:52,450 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:23:52,557 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:23:52,558 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:23:52,682 INFO L142 QuantifierPusher]: treesize reduction 45, result has 59.1 percent of original size [2021-03-11 14:23:52,684 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:23:52,822 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 31 [2021-03-11 14:23:52,825 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:23:52,826 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:23:52,926 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:23:52,928 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:23:53,017 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:23:53,017 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1572205977] [2021-03-11 14:23:53,017 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:23:53,017 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:23:53,017 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [291935978] [2021-03-11 14:23:53,017 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:23:53,017 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:23:53,017 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:23:53,017 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:23:53,018 INFO L87 Difference]: Start difference. First operand 3125 states and 15575 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:23:53,528 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 38 [2021-03-11 14:23:53,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:23:53,568 INFO L93 Difference]: Finished difference Result 6033 states and 26847 transitions. [2021-03-11 14:23:53,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:23:53,571 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:23:53,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:23:53,585 INFO L225 Difference]: With dead ends: 6033 [2021-03-11 14:23:53,585 INFO L226 Difference]: Without dead ends: 6017 [2021-03-11 14:23:53,585 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 847.8ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:23:53,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6017 states. [2021-03-11 14:23:53,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6017 to 3130. [2021-03-11 14:23:53,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3130 states, 3129 states have (on average 4.980504953659316) internal successors, (15584), 3129 states have internal predecessors, (15584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:23:53,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3130 states to 3130 states and 15584 transitions. [2021-03-11 14:23:53,727 INFO L78 Accepts]: Start accepts. Automaton has 3130 states and 15584 transitions. Word has length 31 [2021-03-11 14:23:53,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:23:53,727 INFO L480 AbstractCegarLoop]: Abstraction has 3130 states and 15584 transitions. [2021-03-11 14:23:53,728 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:23:53,728 INFO L276 IsEmpty]: Start isEmpty. Operand 3130 states and 15584 transitions. [2021-03-11 14:23:53,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:23:53,733 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:23:53,733 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:23:53,733 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable545 [2021-03-11 14:23:53,733 INFO L428 AbstractCegarLoop]: === Iteration 547 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:23:53,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:23:53,733 INFO L82 PathProgramCache]: Analyzing trace with hash 93475205, now seen corresponding path program 538 times [2021-03-11 14:23:53,733 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:23:53,733 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1836134223] [2021-03-11 14:23:53,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:23:53,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:23:53,746 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:23:53,747 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:23:53,748 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:23:53,748 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:23:53,761 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:23:53,762 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:23:53,783 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:23:53,784 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:23:53,814 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:23:53,815 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:23:53,857 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:23:53,858 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:23:53,905 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:23:53,906 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:23:54,000 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:23:54,001 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:23:54,111 INFO L142 QuantifierPusher]: treesize reduction 45, result has 59.1 percent of original size [2021-03-11 14:23:54,112 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:23:54,237 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 31 [2021-03-11 14:23:54,239 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:23:54,240 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:23:54,332 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:23:54,333 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:23:54,414 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:23:54,415 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1836134223] [2021-03-11 14:23:54,415 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:23:54,415 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:23:54,415 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [88058375] [2021-03-11 14:23:54,415 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:23:54,415 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:23:54,415 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:23:54,415 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:23:54,415 INFO L87 Difference]: Start difference. First operand 3130 states and 15584 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:23:54,818 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 41 [2021-03-11 14:23:54,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:23:54,858 INFO L93 Difference]: Finished difference Result 6036 states and 26848 transitions. [2021-03-11 14:23:54,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:23:54,860 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:23:54,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:23:54,873 INFO L225 Difference]: With dead ends: 6036 [2021-03-11 14:23:54,873 INFO L226 Difference]: Without dead ends: 6012 [2021-03-11 14:23:54,873 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 780.6ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:23:54,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6012 states. [2021-03-11 14:23:55,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6012 to 3125. [2021-03-11 14:23:55,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3125 states, 3124 states have (on average 4.9839948783610755) internal successors, (15570), 3124 states have internal predecessors, (15570), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:23:55,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3125 states to 3125 states and 15570 transitions. [2021-03-11 14:23:55,011 INFO L78 Accepts]: Start accepts. Automaton has 3125 states and 15570 transitions. Word has length 31 [2021-03-11 14:23:55,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:23:55,011 INFO L480 AbstractCegarLoop]: Abstraction has 3125 states and 15570 transitions. [2021-03-11 14:23:55,011 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:23:55,011 INFO L276 IsEmpty]: Start isEmpty. Operand 3125 states and 15570 transitions. [2021-03-11 14:23:55,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:23:55,016 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:23:55,016 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:23:55,016 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable546 [2021-03-11 14:23:55,016 INFO L428 AbstractCegarLoop]: === Iteration 548 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:23:55,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:23:55,016 INFO L82 PathProgramCache]: Analyzing trace with hash -1245917519, now seen corresponding path program 539 times [2021-03-11 14:23:55,016 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:23:55,016 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [460448861] [2021-03-11 14:23:55,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:23:55,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:23:55,028 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:23:55,029 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:23:55,030 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:23:55,030 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:23:55,042 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:23:55,043 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:23:55,062 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:23:55,063 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:23:55,091 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:23:55,092 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:23:55,129 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:23:55,130 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:23:55,176 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:23:55,177 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:23:55,272 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:23:55,273 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:23:55,384 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:23:55,385 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:23:55,465 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:23:55,466 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:23:55,558 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:23:55,559 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:23:55,639 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:23:55,639 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [460448861] [2021-03-11 14:23:55,639 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:23:55,639 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:23:55,639 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [608955886] [2021-03-11 14:23:55,639 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:23:55,640 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:23:55,640 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:23:55,640 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:23:55,640 INFO L87 Difference]: Start difference. First operand 3125 states and 15570 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:23:56,065 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 41 [2021-03-11 14:23:56,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:23:56,094 INFO L93 Difference]: Finished difference Result 6044 states and 26867 transitions. [2021-03-11 14:23:56,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:23:56,096 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:23:56,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:23:56,109 INFO L225 Difference]: With dead ends: 6044 [2021-03-11 14:23:56,109 INFO L226 Difference]: Without dead ends: 6024 [2021-03-11 14:23:56,109 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 728.3ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:23:56,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6024 states. [2021-03-11 14:23:56,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6024 to 3133. [2021-03-11 14:23:56,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3133 states, 3132 states have (on average 4.976053639846743) internal successors, (15585), 3132 states have internal predecessors, (15585), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:23:56,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3133 states to 3133 states and 15585 transitions. [2021-03-11 14:23:56,244 INFO L78 Accepts]: Start accepts. Automaton has 3133 states and 15585 transitions. Word has length 31 [2021-03-11 14:23:56,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:23:56,244 INFO L480 AbstractCegarLoop]: Abstraction has 3133 states and 15585 transitions. [2021-03-11 14:23:56,244 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:23:56,244 INFO L276 IsEmpty]: Start isEmpty. Operand 3133 states and 15585 transitions. [2021-03-11 14:23:56,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:23:56,249 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:23:56,249 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:23:56,249 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable547 [2021-03-11 14:23:56,249 INFO L428 AbstractCegarLoop]: === Iteration 549 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:23:56,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:23:56,249 INFO L82 PathProgramCache]: Analyzing trace with hash -330836031, now seen corresponding path program 540 times [2021-03-11 14:23:56,249 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:23:56,249 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2143314010] [2021-03-11 14:23:56,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:23:56,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:23:56,262 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:23:56,262 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:23:56,263 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:23:56,264 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:23:56,276 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:23:56,276 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:23:56,296 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:23:56,297 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:23:56,326 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:23:56,328 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:23:56,366 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:23:56,367 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:23:56,413 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:23:56,414 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:23:56,508 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:23:56,509 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:23:56,618 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:23:56,619 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:23:56,698 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:23:56,699 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:23:56,789 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:23:56,791 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:23:56,872 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:23:56,872 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2143314010] [2021-03-11 14:23:56,873 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:23:56,873 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:23:56,873 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [824796446] [2021-03-11 14:23:56,873 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:23:56,873 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:23:56,873 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:23:56,873 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:23:56,873 INFO L87 Difference]: Start difference. First operand 3133 states and 15585 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:23:57,276 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 41 [2021-03-11 14:23:57,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:23:57,311 INFO L93 Difference]: Finished difference Result 6043 states and 26857 transitions. [2021-03-11 14:23:57,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:23:57,314 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:23:57,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:23:57,326 INFO L225 Difference]: With dead ends: 6043 [2021-03-11 14:23:57,327 INFO L226 Difference]: Without dead ends: 6011 [2021-03-11 14:23:57,327 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 724.2ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:23:57,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6011 states. [2021-03-11 14:23:57,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6011 to 3120. [2021-03-11 14:23:57,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3120 states, 3119 states have (on average 4.9874959923052264) internal successors, (15556), 3119 states have internal predecessors, (15556), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:23:57,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3120 states to 3120 states and 15556 transitions. [2021-03-11 14:23:57,461 INFO L78 Accepts]: Start accepts. Automaton has 3120 states and 15556 transitions. Word has length 31 [2021-03-11 14:23:57,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:23:57,461 INFO L480 AbstractCegarLoop]: Abstraction has 3120 states and 15556 transitions. [2021-03-11 14:23:57,461 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:23:57,461 INFO L276 IsEmpty]: Start isEmpty. Operand 3120 states and 15556 transitions. [2021-03-11 14:23:57,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:23:57,466 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:23:57,466 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:23:57,466 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable548 [2021-03-11 14:23:57,466 INFO L428 AbstractCegarLoop]: === Iteration 550 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:23:57,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:23:57,466 INFO L82 PathProgramCache]: Analyzing trace with hash 1442391937, now seen corresponding path program 541 times [2021-03-11 14:23:57,466 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:23:57,466 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1237264959] [2021-03-11 14:23:57,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:23:57,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:23:57,478 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:23:57,479 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:23:57,480 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:23:57,480 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:23:57,492 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:23:57,493 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:23:57,512 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:23:57,513 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:23:57,542 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:23:57,543 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:23:57,580 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:23:57,581 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:23:57,628 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:23:57,629 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:23:57,728 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:23:57,729 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:23:57,849 INFO L142 QuantifierPusher]: treesize reduction 54, result has 55.4 percent of original size [2021-03-11 14:23:57,851 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-03-11 14:23:57,979 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:23:57,980 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:23:58,072 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:23:58,073 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:23:58,156 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:23:58,156 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1237264959] [2021-03-11 14:23:58,156 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:23:58,156 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:23:58,156 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [774655702] [2021-03-11 14:23:58,156 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:23:58,156 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:23:58,157 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:23:58,157 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:23:58,157 INFO L87 Difference]: Start difference. First operand 3120 states and 15556 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:23:58,502 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 37 [2021-03-11 14:23:58,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:23:58,533 INFO L93 Difference]: Finished difference Result 6042 states and 26864 transitions. [2021-03-11 14:23:58,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:23:58,535 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:23:58,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:23:58,549 INFO L225 Difference]: With dead ends: 6042 [2021-03-11 14:23:58,549 INFO L226 Difference]: Without dead ends: 6026 [2021-03-11 14:23:58,549 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 784.3ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:23:58,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6026 states. [2021-03-11 14:23:58,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6026 to 3132. [2021-03-11 14:23:58,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3132 states, 3131 states have (on average 4.9789204726924305) internal successors, (15589), 3131 states have internal predecessors, (15589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:23:58,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3132 states to 3132 states and 15589 transitions. [2021-03-11 14:23:58,684 INFO L78 Accepts]: Start accepts. Automaton has 3132 states and 15589 transitions. Word has length 31 [2021-03-11 14:23:58,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:23:58,684 INFO L480 AbstractCegarLoop]: Abstraction has 3132 states and 15589 transitions. [2021-03-11 14:23:58,684 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:23:58,684 INFO L276 IsEmpty]: Start isEmpty. Operand 3132 states and 15589 transitions. [2021-03-11 14:23:58,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:23:58,689 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:23:58,689 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:23:58,689 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable549 [2021-03-11 14:23:58,689 INFO L428 AbstractCegarLoop]: === Iteration 551 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:23:58,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:23:58,689 INFO L82 PathProgramCache]: Analyzing trace with hash 1934987699, now seen corresponding path program 542 times [2021-03-11 14:23:58,689 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:23:58,689 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1782396655] [2021-03-11 14:23:58,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:23:58,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:23:58,701 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:23:58,702 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:23:58,703 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:23:58,704 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:23:58,715 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:23:58,716 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:23:58,736 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:23:58,737 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:23:58,766 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:23:58,767 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:23:58,806 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:23:58,807 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:23:58,854 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:23:58,855 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:23:58,950 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:23:58,951 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:23:59,063 INFO L142 QuantifierPusher]: treesize reduction 54, result has 55.4 percent of original size [2021-03-11 14:23:59,065 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-03-11 14:23:59,183 INFO L142 QuantifierPusher]: treesize reduction 72, result has 49.7 percent of original size [2021-03-11 14:23:59,184 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-03-11 14:23:59,278 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:23:59,279 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:23:59,360 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:23:59,360 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1782396655] [2021-03-11 14:23:59,360 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:23:59,360 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:23:59,361 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [309686505] [2021-03-11 14:23:59,361 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:23:59,361 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:23:59,361 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:23:59,361 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:23:59,361 INFO L87 Difference]: Start difference. First operand 3132 states and 15589 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:23:59,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:23:59,679 INFO L93 Difference]: Finished difference Result 6048 states and 26870 transitions. [2021-03-11 14:23:59,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:23:59,682 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:23:59,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:23:59,695 INFO L225 Difference]: With dead ends: 6048 [2021-03-11 14:23:59,696 INFO L226 Difference]: Without dead ends: 6020 [2021-03-11 14:23:59,696 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 707.7ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:23:59,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6020 states. [2021-03-11 14:23:59,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6020 to 3126. [2021-03-11 14:23:59,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3126 states, 3125 states have (on average 4.98304) internal successors, (15572), 3125 states have internal predecessors, (15572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:23:59,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3126 states to 3126 states and 15572 transitions. [2021-03-11 14:23:59,833 INFO L78 Accepts]: Start accepts. Automaton has 3126 states and 15572 transitions. Word has length 31 [2021-03-11 14:23:59,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:23:59,833 INFO L480 AbstractCegarLoop]: Abstraction has 3126 states and 15572 transitions. [2021-03-11 14:23:59,833 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:23:59,833 INFO L276 IsEmpty]: Start isEmpty. Operand 3126 states and 15572 transitions. [2021-03-11 14:23:59,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:23:59,838 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:23:59,838 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:23:59,838 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable550 [2021-03-11 14:23:59,838 INFO L428 AbstractCegarLoop]: === Iteration 552 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:23:59,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:23:59,838 INFO L82 PathProgramCache]: Analyzing trace with hash 1230236319, now seen corresponding path program 543 times [2021-03-11 14:23:59,839 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:23:59,839 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1435525862] [2021-03-11 14:23:59,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:23:59,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:23:59,851 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:23:59,851 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:23:59,852 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:23:59,853 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:23:59,865 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:23:59,866 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:23:59,886 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:23:59,887 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:23:59,916 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:23:59,917 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:23:59,956 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:23:59,957 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:24:00,005 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:24:00,006 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:24:00,106 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:24:00,107 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:24:00,222 INFO L142 QuantifierPusher]: treesize reduction 45, result has 59.1 percent of original size [2021-03-11 14:24:00,223 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:24:00,350 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 31 [2021-03-11 14:24:00,361 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:24:00,362 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:24:00,455 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:24:00,456 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:24:00,540 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:24:00,540 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1435525862] [2021-03-11 14:24:00,540 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:24:00,541 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:24:00,541 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2118564279] [2021-03-11 14:24:00,541 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:24:00,541 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:24:00,541 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:24:00,541 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:24:00,541 INFO L87 Difference]: Start difference. First operand 3126 states and 15572 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:24:00,908 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 37 [2021-03-11 14:24:00,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:24:00,941 INFO L93 Difference]: Finished difference Result 6038 states and 26851 transitions. [2021-03-11 14:24:00,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:24:00,944 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:24:00,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:24:00,958 INFO L225 Difference]: With dead ends: 6038 [2021-03-11 14:24:00,958 INFO L226 Difference]: Without dead ends: 6022 [2021-03-11 14:24:00,958 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 790.7ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:24:01,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6022 states. [2021-03-11 14:24:01,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6022 to 3131. [2021-03-11 14:24:01,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3131 states, 3130 states have (on average 4.977955271565495) internal successors, (15581), 3130 states have internal predecessors, (15581), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:24:01,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3131 states to 3131 states and 15581 transitions. [2021-03-11 14:24:01,097 INFO L78 Accepts]: Start accepts. Automaton has 3131 states and 15581 transitions. Word has length 31 [2021-03-11 14:24:01,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:24:01,097 INFO L480 AbstractCegarLoop]: Abstraction has 3131 states and 15581 transitions. [2021-03-11 14:24:01,097 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:24:01,097 INFO L276 IsEmpty]: Start isEmpty. Operand 3131 states and 15581 transitions. [2021-03-11 14:24:01,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:24:01,102 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:24:01,102 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:24:01,102 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable551 [2021-03-11 14:24:01,102 INFO L428 AbstractCegarLoop]: === Iteration 553 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:24:01,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:24:01,102 INFO L82 PathProgramCache]: Analyzing trace with hash 1300346355, now seen corresponding path program 544 times [2021-03-11 14:24:01,103 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:24:01,103 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1036178847] [2021-03-11 14:24:01,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:24:01,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:24:01,114 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:24:01,116 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:24:01,117 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:24:01,117 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:24:01,130 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:24:01,131 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:24:01,153 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:24:01,154 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:24:01,185 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:24:01,186 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:24:01,226 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:24:01,227 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:24:01,278 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:24:01,279 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:24:01,378 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:24:01,379 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:24:01,505 INFO L142 QuantifierPusher]: treesize reduction 45, result has 59.1 percent of original size [2021-03-11 14:24:01,506 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:24:01,637 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 31 [2021-03-11 14:24:01,640 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:24:01,641 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:24:01,736 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:24:01,737 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:24:01,822 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:24:01,822 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1036178847] [2021-03-11 14:24:01,822 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:24:01,822 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:24:01,822 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1189015628] [2021-03-11 14:24:01,822 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:24:01,822 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:24:01,822 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:24:01,822 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:24:01,822 INFO L87 Difference]: Start difference. First operand 3131 states and 15581 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:24:02,355 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 40 [2021-03-11 14:24:02,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:24:02,392 INFO L93 Difference]: Finished difference Result 6041 states and 26852 transitions. [2021-03-11 14:24:02,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:24:02,394 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:24:02,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:24:02,407 INFO L225 Difference]: With dead ends: 6041 [2021-03-11 14:24:02,407 INFO L226 Difference]: Without dead ends: 6017 [2021-03-11 14:24:02,407 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 825.5ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:24:02,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6017 states. [2021-03-11 14:24:02,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6017 to 3126. [2021-03-11 14:24:02,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3126 states, 3125 states have (on average 4.98144) internal successors, (15567), 3125 states have internal predecessors, (15567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:24:02,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3126 states to 3126 states and 15567 transitions. [2021-03-11 14:24:02,542 INFO L78 Accepts]: Start accepts. Automaton has 3126 states and 15567 transitions. Word has length 31 [2021-03-11 14:24:02,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:24:02,543 INFO L480 AbstractCegarLoop]: Abstraction has 3126 states and 15567 transitions. [2021-03-11 14:24:02,543 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:24:02,543 INFO L276 IsEmpty]: Start isEmpty. Operand 3126 states and 15567 transitions. [2021-03-11 14:24:02,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:24:02,547 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:24:02,547 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:24:02,547 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable552 [2021-03-11 14:24:02,548 INFO L428 AbstractCegarLoop]: === Iteration 554 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:24:02,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:24:02,548 INFO L82 PathProgramCache]: Analyzing trace with hash -186568481, now seen corresponding path program 545 times [2021-03-11 14:24:02,548 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:24:02,548 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1853684075] [2021-03-11 14:24:02,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:24:02,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:24:02,560 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:24:02,561 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:24:02,561 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:24:02,562 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:24:02,574 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:24:02,575 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:24:02,595 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:24:02,596 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:24:02,625 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:24:02,626 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:24:02,666 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:24:02,667 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:24:02,715 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:24:02,716 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:24:02,814 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:24:02,815 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:24:02,927 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:24:02,928 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:24:03,010 INFO L142 QuantifierPusher]: treesize reduction 72, result has 49.7 percent of original size [2021-03-11 14:24:03,011 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-03-11 14:24:03,109 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:24:03,110 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:24:03,192 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:24:03,192 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1853684075] [2021-03-11 14:24:03,192 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:24:03,193 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:24:03,193 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [925281139] [2021-03-11 14:24:03,193 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:24:03,193 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:24:03,193 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:24:03,193 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:24:03,193 INFO L87 Difference]: Start difference. First operand 3126 states and 15567 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:24:03,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:24:03,661 INFO L93 Difference]: Finished difference Result 6054 states and 26879 transitions. [2021-03-11 14:24:03,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:24:03,663 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:24:03,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:24:03,676 INFO L225 Difference]: With dead ends: 6054 [2021-03-11 14:24:03,677 INFO L226 Difference]: Without dead ends: 6032 [2021-03-11 14:24:03,677 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 679.1ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:24:03,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6032 states. [2021-03-11 14:24:03,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6032 to 3135. [2021-03-11 14:24:03,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3135 states, 3134 states have (on average 4.972239948947032) internal successors, (15583), 3134 states have internal predecessors, (15583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:24:03,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3135 states to 3135 states and 15583 transitions. [2021-03-11 14:24:03,811 INFO L78 Accepts]: Start accepts. Automaton has 3135 states and 15583 transitions. Word has length 31 [2021-03-11 14:24:03,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:24:03,811 INFO L480 AbstractCegarLoop]: Abstraction has 3135 states and 15583 transitions. [2021-03-11 14:24:03,811 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:24:03,811 INFO L276 IsEmpty]: Start isEmpty. Operand 3135 states and 15583 transitions. [2021-03-11 14:24:03,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:24:03,816 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:24:03,816 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:24:03,816 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable553 [2021-03-11 14:24:03,816 INFO L428 AbstractCegarLoop]: === Iteration 555 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:24:03,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:24:03,816 INFO L82 PathProgramCache]: Analyzing trace with hash -609054207, now seen corresponding path program 546 times [2021-03-11 14:24:03,816 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:24:03,816 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1491732269] [2021-03-11 14:24:03,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:24:03,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:24:03,828 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:24:03,829 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:24:03,830 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:24:03,831 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:24:03,843 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:24:03,843 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:24:03,863 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:24:03,864 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:24:03,893 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:24:03,894 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:24:03,933 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:24:03,934 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:24:03,982 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:24:03,983 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:24:04,081 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:24:04,082 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:24:04,193 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:24:04,194 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:24:04,276 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:24:04,278 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:24:04,369 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:24:04,370 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:24:04,451 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:24:04,452 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1491732269] [2021-03-11 14:24:04,452 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:24:04,452 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:24:04,452 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906633998] [2021-03-11 14:24:04,452 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:24:04,452 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:24:04,452 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:24:04,452 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:24:04,452 INFO L87 Difference]: Start difference. First operand 3135 states and 15583 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:24:04,889 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 40 [2021-03-11 14:24:04,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:24:04,934 INFO L93 Difference]: Finished difference Result 6051 states and 26865 transitions. [2021-03-11 14:24:04,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:24:04,937 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:24:04,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:24:04,950 INFO L225 Difference]: With dead ends: 6051 [2021-03-11 14:24:04,950 INFO L226 Difference]: Without dead ends: 6017 [2021-03-11 14:24:04,951 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 738.6ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:24:05,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6017 states. [2021-03-11 14:24:05,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6017 to 3120. [2021-03-11 14:24:05,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3120 states, 3119 states have (on average 4.9855722988137225) internal successors, (15550), 3119 states have internal predecessors, (15550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:24:05,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3120 states to 3120 states and 15550 transitions. [2021-03-11 14:24:05,087 INFO L78 Accepts]: Start accepts. Automaton has 3120 states and 15550 transitions. Word has length 31 [2021-03-11 14:24:05,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:24:05,087 INFO L480 AbstractCegarLoop]: Abstraction has 3120 states and 15550 transitions. [2021-03-11 14:24:05,087 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:24:05,087 INFO L276 IsEmpty]: Start isEmpty. Operand 3120 states and 15550 transitions. [2021-03-11 14:24:05,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:24:05,092 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:24:05,092 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:24:05,092 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable554 [2021-03-11 14:24:05,092 INFO L428 AbstractCegarLoop]: === Iteration 556 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:24:05,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:24:05,092 INFO L82 PathProgramCache]: Analyzing trace with hash -95637179, now seen corresponding path program 547 times [2021-03-11 14:24:05,092 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:24:05,092 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1078229278] [2021-03-11 14:24:05,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:24:05,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:24:05,104 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:24:05,105 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:24:05,106 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:24:05,107 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:24:05,119 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:24:05,119 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:24:05,139 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:24:05,140 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:24:05,170 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:24:05,171 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:24:05,211 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:24:05,212 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:24:05,260 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:24:05,261 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:24:05,356 INFO L142 QuantifierPusher]: treesize reduction 54, result has 50.5 percent of original size [2021-03-11 14:24:05,357 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-11 14:24:05,428 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:24:05,429 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:24:05,510 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:24:05,512 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:24:05,603 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:24:05,604 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:24:05,686 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:24:05,686 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1078229278] [2021-03-11 14:24:05,686 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:24:05,686 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:24:05,686 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [438416491] [2021-03-11 14:24:05,686 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:24:05,687 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:24:05,687 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:24:05,687 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:24:05,687 INFO L87 Difference]: Start difference. First operand 3120 states and 15550 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:24:06,093 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 41 [2021-03-11 14:24:06,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:24:06,124 INFO L93 Difference]: Finished difference Result 6072 states and 26932 transitions. [2021-03-11 14:24:06,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:24:06,126 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:24:06,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:24:06,139 INFO L225 Difference]: With dead ends: 6072 [2021-03-11 14:24:06,139 INFO L226 Difference]: Without dead ends: 6052 [2021-03-11 14:24:06,139 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 701.2ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:24:06,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6052 states. [2021-03-11 14:24:06,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6052 to 3142. [2021-03-11 14:24:06,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3142 states, 3141 states have (on average 4.968799745304043) internal successors, (15607), 3141 states have internal predecessors, (15607), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:24:06,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3142 states to 3142 states and 15607 transitions. [2021-03-11 14:24:06,275 INFO L78 Accepts]: Start accepts. Automaton has 3142 states and 15607 transitions. Word has length 31 [2021-03-11 14:24:06,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:24:06,275 INFO L480 AbstractCegarLoop]: Abstraction has 3142 states and 15607 transitions. [2021-03-11 14:24:06,275 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:24:06,275 INFO L276 IsEmpty]: Start isEmpty. Operand 3142 states and 15607 transitions. [2021-03-11 14:24:06,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:24:06,280 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:24:06,280 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:24:06,280 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable555 [2021-03-11 14:24:06,280 INFO L428 AbstractCegarLoop]: === Iteration 557 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:24:06,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:24:06,280 INFO L82 PathProgramCache]: Analyzing trace with hash 1241930035, now seen corresponding path program 548 times [2021-03-11 14:24:06,280 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:24:06,280 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1477185588] [2021-03-11 14:24:06,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:24:06,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:24:06,292 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:24:06,293 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:24:06,294 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:24:06,295 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:24:06,307 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:24:06,308 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:24:06,328 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:24:06,329 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:24:06,359 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:24:06,360 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:24:06,400 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:24:06,401 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:24:06,448 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:24:06,449 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:24:06,546 INFO L142 QuantifierPusher]: treesize reduction 54, result has 50.5 percent of original size [2021-03-11 14:24:06,547 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-11 14:24:06,619 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:24:06,620 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:24:06,704 INFO L142 QuantifierPusher]: treesize reduction 72, result has 49.7 percent of original size [2021-03-11 14:24:06,706 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-03-11 14:24:06,800 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:24:06,802 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:24:06,884 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:24:06,884 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1477185588] [2021-03-11 14:24:06,885 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:24:06,885 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:24:06,885 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1950622728] [2021-03-11 14:24:06,885 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:24:06,885 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:24:06,885 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:24:06,885 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:24:06,885 INFO L87 Difference]: Start difference. First operand 3142 states and 15607 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:24:07,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:24:07,225 INFO L93 Difference]: Finished difference Result 6074 states and 26926 transitions. [2021-03-11 14:24:07,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:24:07,227 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:24:07,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:24:07,240 INFO L225 Difference]: With dead ends: 6074 [2021-03-11 14:24:07,240 INFO L226 Difference]: Without dead ends: 6041 [2021-03-11 14:24:07,240 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 639.2ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:24:07,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6041 states. [2021-03-11 14:24:07,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6041 to 3131. [2021-03-11 14:24:07,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3131 states, 3130 states have (on average 4.976677316293929) internal successors, (15577), 3130 states have internal predecessors, (15577), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:24:07,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3131 states to 3131 states and 15577 transitions. [2021-03-11 14:24:07,375 INFO L78 Accepts]: Start accepts. Automaton has 3131 states and 15577 transitions. Word has length 31 [2021-03-11 14:24:07,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:24:07,375 INFO L480 AbstractCegarLoop]: Abstraction has 3131 states and 15577 transitions. [2021-03-11 14:24:07,375 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:24:07,375 INFO L276 IsEmpty]: Start isEmpty. Operand 3131 states and 15577 transitions. [2021-03-11 14:24:07,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:24:07,380 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:24:07,380 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:24:07,380 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable556 [2021-03-11 14:24:07,380 INFO L428 AbstractCegarLoop]: === Iteration 558 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:24:07,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:24:07,380 INFO L82 PathProgramCache]: Analyzing trace with hash -307792797, now seen corresponding path program 549 times [2021-03-11 14:24:07,380 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:24:07,380 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [712590622] [2021-03-11 14:24:07,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:24:07,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:24:07,392 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:24:07,393 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:24:07,394 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:24:07,395 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:24:07,407 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:24:07,408 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:24:07,430 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:24:07,430 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:24:07,460 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:24:07,461 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:24:07,500 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:24:07,501 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:24:07,548 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:24:07,549 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:24:07,647 INFO L142 QuantifierPusher]: treesize reduction 54, result has 50.5 percent of original size [2021-03-11 14:24:07,648 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-11 14:24:07,719 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:24:07,720 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:24:07,801 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:24:07,802 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:24:07,898 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:24:07,899 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:24:07,995 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:24:07,995 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [712590622] [2021-03-11 14:24:07,995 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:24:07,995 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:24:07,995 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1323567300] [2021-03-11 14:24:07,995 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:24:07,995 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:24:07,996 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:24:07,996 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:24:07,996 INFO L87 Difference]: Start difference. First operand 3131 states and 15577 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:24:08,394 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 41 [2021-03-11 14:24:08,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:24:08,424 INFO L93 Difference]: Finished difference Result 6066 states and 26911 transitions. [2021-03-11 14:24:08,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:24:08,427 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:24:08,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:24:08,440 INFO L225 Difference]: With dead ends: 6066 [2021-03-11 14:24:08,440 INFO L226 Difference]: Without dead ends: 6046 [2021-03-11 14:24:08,440 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 721.5ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:24:08,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6046 states. [2021-03-11 14:24:08,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6046 to 3139. [2021-03-11 14:24:08,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3139 states, 3138 states have (on average 4.968769917144678) internal successors, (15592), 3138 states have internal predecessors, (15592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:24:08,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3139 states to 3139 states and 15592 transitions. [2021-03-11 14:24:08,575 INFO L78 Accepts]: Start accepts. Automaton has 3139 states and 15592 transitions. Word has length 31 [2021-03-11 14:24:08,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:24:08,575 INFO L480 AbstractCegarLoop]: Abstraction has 3139 states and 15592 transitions. [2021-03-11 14:24:08,575 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:24:08,575 INFO L276 IsEmpty]: Start isEmpty. Operand 3139 states and 15592 transitions. [2021-03-11 14:24:08,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:24:08,580 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:24:08,580 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:24:08,580 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable557 [2021-03-11 14:24:08,580 INFO L428 AbstractCegarLoop]: === Iteration 559 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:24:08,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:24:08,580 INFO L82 PathProgramCache]: Analyzing trace with hash 607288691, now seen corresponding path program 550 times [2021-03-11 14:24:08,580 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:24:08,580 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1878095649] [2021-03-11 14:24:08,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:24:08,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:24:08,592 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:24:08,593 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:24:08,593 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:24:08,594 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:24:08,606 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:24:08,607 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:24:08,627 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:24:08,628 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:24:08,659 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:24:08,659 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:24:08,699 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:24:08,700 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:24:08,748 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:24:08,749 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:24:08,848 INFO L142 QuantifierPusher]: treesize reduction 54, result has 50.5 percent of original size [2021-03-11 14:24:08,849 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-11 14:24:08,924 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:24:08,925 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:24:09,007 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:24:09,008 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:24:09,101 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:24:09,102 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:24:09,186 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:24:09,186 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1878095649] [2021-03-11 14:24:09,186 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:24:09,186 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:24:09,186 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1970650885] [2021-03-11 14:24:09,186 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:24:09,186 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:24:09,186 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:24:09,186 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:24:09,186 INFO L87 Difference]: Start difference. First operand 3139 states and 15592 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:24:09,556 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 41 [2021-03-11 14:24:09,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:24:09,597 INFO L93 Difference]: Finished difference Result 6065 states and 26901 transitions. [2021-03-11 14:24:09,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:24:09,599 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:24:09,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:24:09,612 INFO L225 Difference]: With dead ends: 6065 [2021-03-11 14:24:09,612 INFO L226 Difference]: Without dead ends: 6038 [2021-03-11 14:24:09,613 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 711.0ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:24:09,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6038 states. [2021-03-11 14:24:09,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6038 to 3131. [2021-03-11 14:24:09,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3131 states, 3130 states have (on average 4.9741214057507985) internal successors, (15569), 3130 states have internal predecessors, (15569), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:24:09,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3131 states to 3131 states and 15569 transitions. [2021-03-11 14:24:09,781 INFO L78 Accepts]: Start accepts. Automaton has 3131 states and 15569 transitions. Word has length 31 [2021-03-11 14:24:09,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:24:09,781 INFO L480 AbstractCegarLoop]: Abstraction has 3131 states and 15569 transitions. [2021-03-11 14:24:09,781 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:24:09,781 INFO L276 IsEmpty]: Start isEmpty. Operand 3131 states and 15569 transitions. [2021-03-11 14:24:09,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:24:09,786 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:24:09,786 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:24:09,786 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable558 [2021-03-11 14:24:09,786 INFO L428 AbstractCegarLoop]: === Iteration 560 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:24:09,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:24:09,786 INFO L82 PathProgramCache]: Analyzing trace with hash -455314909, now seen corresponding path program 551 times [2021-03-11 14:24:09,786 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:24:09,787 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1239506733] [2021-03-11 14:24:09,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:24:09,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:24:09,798 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:24:09,799 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:24:09,800 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:24:09,801 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:24:09,813 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:24:09,814 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:24:09,834 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:24:09,835 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:24:09,863 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:24:09,864 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:24:09,902 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:24:09,903 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:24:09,950 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:24:09,951 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:24:10,048 INFO L142 QuantifierPusher]: treesize reduction 54, result has 50.5 percent of original size [2021-03-11 14:24:10,049 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-11 14:24:10,120 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:24:10,121 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:24:10,205 INFO L142 QuantifierPusher]: treesize reduction 72, result has 49.7 percent of original size [2021-03-11 14:24:10,206 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-03-11 14:24:10,311 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:24:10,312 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:24:10,403 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:24:10,403 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1239506733] [2021-03-11 14:24:10,404 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:24:10,404 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:24:10,404 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1477656653] [2021-03-11 14:24:10,404 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:24:10,404 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:24:10,404 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:24:10,404 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:24:10,404 INFO L87 Difference]: Start difference. First operand 3131 states and 15569 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:24:10,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:24:10,801 INFO L93 Difference]: Finished difference Result 6071 states and 26911 transitions. [2021-03-11 14:24:10,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:24:10,804 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:24:10,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:24:10,818 INFO L225 Difference]: With dead ends: 6071 [2021-03-11 14:24:10,818 INFO L226 Difference]: Without dead ends: 6049 [2021-03-11 14:24:10,818 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 659.5ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:24:10,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6049 states. [2021-03-11 14:24:10,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6049 to 3140. [2021-03-11 14:24:10,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3140 states, 3139 states have (on average 4.964956992672826) internal successors, (15585), 3139 states have internal predecessors, (15585), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:24:10,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3140 states to 3140 states and 15585 transitions. [2021-03-11 14:24:10,962 INFO L78 Accepts]: Start accepts. Automaton has 3140 states and 15585 transitions. Word has length 31 [2021-03-11 14:24:10,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:24:10,962 INFO L480 AbstractCegarLoop]: Abstraction has 3140 states and 15585 transitions. [2021-03-11 14:24:10,962 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:24:10,962 INFO L276 IsEmpty]: Start isEmpty. Operand 3140 states and 15585 transitions. [2021-03-11 14:24:10,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:24:10,967 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:24:10,967 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:24:10,967 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable559 [2021-03-11 14:24:10,968 INFO L428 AbstractCegarLoop]: === Iteration 561 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:24:10,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:24:10,968 INFO L82 PathProgramCache]: Analyzing trace with hash -877800635, now seen corresponding path program 552 times [2021-03-11 14:24:10,968 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:24:10,968 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1281034240] [2021-03-11 14:24:10,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:24:10,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:24:10,980 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:24:10,981 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:24:10,982 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:24:10,983 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:24:10,997 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:24:10,998 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:24:11,020 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:24:11,021 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:24:11,054 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:24:11,055 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:24:11,099 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:24:11,100 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:24:11,153 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:24:11,155 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:24:11,265 INFO L142 QuantifierPusher]: treesize reduction 54, result has 50.5 percent of original size [2021-03-11 14:24:11,266 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-11 14:24:11,346 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:24:11,347 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:24:11,436 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:24:11,438 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:24:11,537 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:24:11,538 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:24:11,628 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:24:11,628 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1281034240] [2021-03-11 14:24:11,628 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:24:11,628 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:24:11,628 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [954581180] [2021-03-11 14:24:11,628 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:24:11,628 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:24:11,629 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:24:11,629 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:24:11,629 INFO L87 Difference]: Start difference. First operand 3140 states and 15585 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:24:12,033 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 40 [2021-03-11 14:24:12,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:24:12,077 INFO L93 Difference]: Finished difference Result 6068 states and 26897 transitions. [2021-03-11 14:24:12,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:24:12,080 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:24:12,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:24:12,094 INFO L225 Difference]: With dead ends: 6068 [2021-03-11 14:24:12,094 INFO L226 Difference]: Without dead ends: 6021 [2021-03-11 14:24:12,094 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 775.4ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:24:12,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6021 states. [2021-03-11 14:24:12,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6021 to 3112. [2021-03-11 14:24:12,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3112 states, 3111 states have (on average 4.990999678559948) internal successors, (15527), 3111 states have internal predecessors, (15527), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:24:12,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3112 states to 3112 states and 15527 transitions. [2021-03-11 14:24:12,237 INFO L78 Accepts]: Start accepts. Automaton has 3112 states and 15527 transitions. Word has length 31 [2021-03-11 14:24:12,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:24:12,237 INFO L480 AbstractCegarLoop]: Abstraction has 3112 states and 15527 transitions. [2021-03-11 14:24:12,237 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:24:12,237 INFO L276 IsEmpty]: Start isEmpty. Operand 3112 states and 15527 transitions. [2021-03-11 14:24:12,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:24:12,242 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:24:12,242 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:24:12,242 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable560 [2021-03-11 14:24:12,242 INFO L428 AbstractCegarLoop]: === Iteration 562 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:24:12,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:24:12,243 INFO L82 PathProgramCache]: Analyzing trace with hash -726762661, now seen corresponding path program 553 times [2021-03-11 14:24:12,243 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:24:12,243 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [171607553] [2021-03-11 14:24:12,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:24:12,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:24:12,255 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:24:12,256 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:24:12,257 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:24:12,257 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:24:12,270 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:24:12,271 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:24:12,293 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:24:12,294 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:24:12,326 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:24:12,327 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:24:12,369 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:24:12,370 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:24:12,421 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:24:12,422 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:24:12,483 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:24:12,484 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:24:12,602 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:24:12,603 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:24:12,682 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:24:12,683 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:24:12,776 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:24:12,777 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:24:12,862 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:24:12,862 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [171607553] [2021-03-11 14:24:12,862 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:24:12,862 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:24:12,862 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [192197937] [2021-03-11 14:24:12,862 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:24:12,862 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:24:12,863 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:24:12,863 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:24:12,863 INFO L87 Difference]: Start difference. First operand 3112 states and 15527 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:24:13,279 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 37 [2021-03-11 14:24:13,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:24:13,310 INFO L93 Difference]: Finished difference Result 6016 states and 26807 transitions. [2021-03-11 14:24:13,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:24:13,313 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:24:13,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:24:13,326 INFO L225 Difference]: With dead ends: 6016 [2021-03-11 14:24:13,326 INFO L226 Difference]: Without dead ends: 6000 [2021-03-11 14:24:13,327 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 713.5ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:24:13,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6000 states. [2021-03-11 14:24:13,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6000 to 3129. [2021-03-11 14:24:13,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3129 states, 3128 states have (on average 4.982736572890025) internal successors, (15586), 3128 states have internal predecessors, (15586), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:24:13,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3129 states to 3129 states and 15586 transitions. [2021-03-11 14:24:13,465 INFO L78 Accepts]: Start accepts. Automaton has 3129 states and 15586 transitions. Word has length 31 [2021-03-11 14:24:13,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:24:13,465 INFO L480 AbstractCegarLoop]: Abstraction has 3129 states and 15586 transitions. [2021-03-11 14:24:13,465 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:24:13,466 INFO L276 IsEmpty]: Start isEmpty. Operand 3129 states and 15586 transitions. [2021-03-11 14:24:13,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:24:13,470 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:24:13,470 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:24:13,470 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable561 [2021-03-11 14:24:13,470 INFO L428 AbstractCegarLoop]: === Iteration 563 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:24:13,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:24:13,471 INFO L82 PathProgramCache]: Analyzing trace with hash 1878261731, now seen corresponding path program 554 times [2021-03-11 14:24:13,471 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:24:13,471 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2022854986] [2021-03-11 14:24:13,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:24:13,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:24:13,482 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:24:13,483 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:24:13,484 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:24:13,485 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:24:13,497 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:24:13,498 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:24:13,519 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:24:13,520 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:24:13,549 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:24:13,550 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:24:13,588 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:24:13,589 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:24:13,636 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:24:13,637 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:24:13,693 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:24:13,694 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:24:13,809 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:24:13,810 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:24:13,893 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:24:13,894 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:24:13,984 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:24:13,985 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:24:14,066 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:24:14,067 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2022854986] [2021-03-11 14:24:14,067 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:24:14,067 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:24:14,067 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [630103869] [2021-03-11 14:24:14,067 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:24:14,067 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:24:14,067 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:24:14,067 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:24:14,067 INFO L87 Difference]: Start difference. First operand 3129 states and 15586 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:24:14,470 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 38 [2021-03-11 14:24:14,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:24:14,511 INFO L93 Difference]: Finished difference Result 6017 states and 26804 transitions. [2021-03-11 14:24:14,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:24:14,514 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:24:14,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:24:14,527 INFO L225 Difference]: With dead ends: 6017 [2021-03-11 14:24:14,527 INFO L226 Difference]: Without dead ends: 5995 [2021-03-11 14:24:14,527 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 690.1ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:24:14,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5995 states. [2021-03-11 14:24:14,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5995 to 3124. [2021-03-11 14:24:14,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3124 states, 3123 states have (on average 4.9862311879602945) internal successors, (15572), 3123 states have internal predecessors, (15572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:24:14,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3124 states to 3124 states and 15572 transitions. [2021-03-11 14:24:14,666 INFO L78 Accepts]: Start accepts. Automaton has 3124 states and 15572 transitions. Word has length 31 [2021-03-11 14:24:14,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:24:14,666 INFO L480 AbstractCegarLoop]: Abstraction has 3124 states and 15572 transitions. [2021-03-11 14:24:14,666 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:24:14,666 INFO L276 IsEmpty]: Start isEmpty. Operand 3124 states and 15572 transitions. [2021-03-11 14:24:14,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:24:14,671 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:24:14,671 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:24:14,671 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable562 [2021-03-11 14:24:14,671 INFO L428 AbstractCegarLoop]: === Iteration 564 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:24:14,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:24:14,672 INFO L82 PathProgramCache]: Analyzing trace with hash -1787540751, now seen corresponding path program 555 times [2021-03-11 14:24:14,672 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:24:14,672 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [198325475] [2021-03-11 14:24:14,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:24:14,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:24:14,689 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:24:14,690 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:24:14,691 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:24:14,692 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:24:14,707 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:24:14,709 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:24:14,734 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:24:14,735 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:24:14,770 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:24:14,771 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:24:14,809 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:24:14,810 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:24:14,857 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:24:14,857 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:24:14,913 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:24:14,914 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:24:15,028 INFO L142 QuantifierPusher]: treesize reduction 54, result has 55.4 percent of original size [2021-03-11 14:24:15,029 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-03-11 14:24:15,151 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:24:15,152 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:24:15,245 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:24:15,246 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:24:15,328 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:24:15,328 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [198325475] [2021-03-11 14:24:15,328 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:24:15,328 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:24:15,328 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2104963341] [2021-03-11 14:24:15,328 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:24:15,328 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:24:15,328 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:24:15,328 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:24:15,328 INFO L87 Difference]: Start difference. First operand 3124 states and 15572 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:24:15,727 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 37 [2021-03-11 14:24:15,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:24:15,763 INFO L93 Difference]: Finished difference Result 6022 states and 26813 transitions. [2021-03-11 14:24:15,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:24:15,766 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:24:15,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:24:15,779 INFO L225 Difference]: With dead ends: 6022 [2021-03-11 14:24:15,779 INFO L226 Difference]: Without dead ends: 6006 [2021-03-11 14:24:15,779 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 743.7ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:24:15,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6006 states. [2021-03-11 14:24:15,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6006 to 3130. [2021-03-11 14:24:15,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3130 states, 3129 states have (on average 4.980185362735698) internal successors, (15583), 3129 states have internal predecessors, (15583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:24:15,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3130 states to 3130 states and 15583 transitions. [2021-03-11 14:24:15,913 INFO L78 Accepts]: Start accepts. Automaton has 3130 states and 15583 transitions. Word has length 31 [2021-03-11 14:24:15,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:24:15,913 INFO L480 AbstractCegarLoop]: Abstraction has 3130 states and 15583 transitions. [2021-03-11 14:24:15,914 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:24:15,914 INFO L276 IsEmpty]: Start isEmpty. Operand 3130 states and 15583 transitions. [2021-03-11 14:24:15,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:24:15,918 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:24:15,918 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:24:15,918 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable563 [2021-03-11 14:24:15,918 INFO L428 AbstractCegarLoop]: === Iteration 565 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:24:15,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:24:15,919 INFO L82 PathProgramCache]: Analyzing trace with hash -1294944989, now seen corresponding path program 556 times [2021-03-11 14:24:15,919 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:24:15,919 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1925821177] [2021-03-11 14:24:15,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:24:15,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:24:15,930 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:24:15,931 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:24:15,932 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:24:15,933 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:24:15,945 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:24:15,946 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:24:15,967 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:24:15,968 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:24:15,998 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:24:15,999 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:24:16,039 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:24:16,040 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:24:16,089 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:24:16,090 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:24:16,149 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:24:16,151 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:24:16,268 INFO L142 QuantifierPusher]: treesize reduction 54, result has 55.4 percent of original size [2021-03-11 14:24:16,269 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-03-11 14:24:16,395 INFO L142 QuantifierPusher]: treesize reduction 72, result has 49.7 percent of original size [2021-03-11 14:24:16,396 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-03-11 14:24:16,497 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:24:16,498 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:24:16,581 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:24:16,581 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1925821177] [2021-03-11 14:24:16,581 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:24:16,581 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:24:16,581 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1760132154] [2021-03-11 14:24:16,582 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:24:16,582 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:24:16,582 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:24:16,582 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:24:16,582 INFO L87 Difference]: Start difference. First operand 3130 states and 15583 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:24:17,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:24:17,041 INFO L93 Difference]: Finished difference Result 6028 states and 26819 transitions. [2021-03-11 14:24:17,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:24:17,043 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:24:17,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:24:17,056 INFO L225 Difference]: With dead ends: 6028 [2021-03-11 14:24:17,056 INFO L226 Difference]: Without dead ends: 6000 [2021-03-11 14:24:17,057 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 696.8ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:24:17,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6000 states. [2021-03-11 14:24:17,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6000 to 3124. [2021-03-11 14:24:17,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3124 states, 3123 states have (on average 4.984309958373359) internal successors, (15566), 3123 states have internal predecessors, (15566), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:24:17,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3124 states to 3124 states and 15566 transitions. [2021-03-11 14:24:17,194 INFO L78 Accepts]: Start accepts. Automaton has 3124 states and 15566 transitions. Word has length 31 [2021-03-11 14:24:17,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:24:17,194 INFO L480 AbstractCegarLoop]: Abstraction has 3124 states and 15566 transitions. [2021-03-11 14:24:17,194 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:24:17,195 INFO L276 IsEmpty]: Start isEmpty. Operand 3124 states and 15566 transitions. [2021-03-11 14:24:17,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:24:17,199 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:24:17,199 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:24:17,199 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable564 [2021-03-11 14:24:17,199 INFO L428 AbstractCegarLoop]: === Iteration 566 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:24:17,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:24:17,199 INFO L82 PathProgramCache]: Analyzing trace with hash -31138831, now seen corresponding path program 557 times [2021-03-11 14:24:17,200 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:24:17,200 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [671620832] [2021-03-11 14:24:17,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:24:17,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:24:17,217 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:24:17,218 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:24:17,220 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:24:17,221 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:24:17,238 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:24:17,239 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:24:17,267 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:24:17,268 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:24:17,308 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:24:17,309 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:24:17,360 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:24:17,361 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:24:17,422 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:24:17,423 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:24:17,498 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:24:17,499 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:24:17,642 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 28 [2021-03-11 14:24:17,644 INFO L142 QuantifierPusher]: treesize reduction 54, result has 55.4 percent of original size [2021-03-11 14:24:17,645 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-03-11 14:24:17,781 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 32 [2021-03-11 14:24:17,784 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:24:17,785 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:24:17,878 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:24:17,879 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:24:17,961 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:24:17,961 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [671620832] [2021-03-11 14:24:17,961 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:24:17,961 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:24:17,961 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1254899357] [2021-03-11 14:24:17,962 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:24:17,962 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:24:17,962 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:24:17,962 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:24:17,962 INFO L87 Difference]: Start difference. First operand 3124 states and 15566 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:24:18,422 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 38 [2021-03-11 14:24:18,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:24:18,455 INFO L93 Difference]: Finished difference Result 6025 states and 26814 transitions. [2021-03-11 14:24:18,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:24:18,458 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:24:18,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:24:18,471 INFO L225 Difference]: With dead ends: 6025 [2021-03-11 14:24:18,471 INFO L226 Difference]: Without dead ends: 6008 [2021-03-11 14:24:18,471 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 846.3ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:24:18,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6008 states. [2021-03-11 14:24:18,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6008 to 3131. [2021-03-11 14:24:18,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3131 states, 3130 states have (on average 4.977316293929713) internal successors, (15579), 3130 states have internal predecessors, (15579), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:24:18,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3131 states to 3131 states and 15579 transitions. [2021-03-11 14:24:18,606 INFO L78 Accepts]: Start accepts. Automaton has 3131 states and 15579 transitions. Word has length 31 [2021-03-11 14:24:18,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:24:18,606 INFO L480 AbstractCegarLoop]: Abstraction has 3131 states and 15579 transitions. [2021-03-11 14:24:18,606 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:24:18,606 INFO L276 IsEmpty]: Start isEmpty. Operand 3131 states and 15579 transitions. [2021-03-11 14:24:18,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:24:18,611 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:24:18,611 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:24:18,611 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable565 [2021-03-11 14:24:18,611 INFO L428 AbstractCegarLoop]: === Iteration 567 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:24:18,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:24:18,611 INFO L82 PathProgramCache]: Analyzing trace with hash -2143567461, now seen corresponding path program 558 times [2021-03-11 14:24:18,611 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:24:18,611 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [765994613] [2021-03-11 14:24:18,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:24:18,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:24:18,623 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:24:18,624 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:24:18,625 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:24:18,626 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:24:18,638 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:24:18,639 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:24:18,659 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:24:18,660 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:24:18,689 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:24:18,690 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:24:18,729 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:24:18,730 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:24:18,778 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:24:18,779 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:24:18,836 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:24:18,837 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:24:18,951 INFO L142 QuantifierPusher]: treesize reduction 54, result has 55.4 percent of original size [2021-03-11 14:24:18,952 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-03-11 14:24:19,083 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 32 [2021-03-11 14:24:19,085 INFO L142 QuantifierPusher]: treesize reduction 72, result has 49.7 percent of original size [2021-03-11 14:24:19,086 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-03-11 14:24:19,181 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:24:19,182 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:24:19,266 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:24:19,266 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [765994613] [2021-03-11 14:24:19,266 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:24:19,266 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:24:19,266 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640273037] [2021-03-11 14:24:19,267 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:24:19,267 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:24:19,267 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:24:19,267 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:24:19,267 INFO L87 Difference]: Start difference. First operand 3131 states and 15579 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:24:19,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:24:19,652 INFO L93 Difference]: Finished difference Result 6030 states and 26817 transitions. [2021-03-11 14:24:19,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:24:19,655 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:24:19,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:24:19,668 INFO L225 Difference]: With dead ends: 6030 [2021-03-11 14:24:19,668 INFO L226 Difference]: Without dead ends: 5995 [2021-03-11 14:24:19,668 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 692.7ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:24:19,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5995 states. [2021-03-11 14:24:19,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5995 to 3118. [2021-03-11 14:24:19,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3118 states, 3117 states have (on average 4.988450433108758) internal successors, (15549), 3117 states have internal predecessors, (15549), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:24:19,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3118 states to 3118 states and 15549 transitions. [2021-03-11 14:24:19,803 INFO L78 Accepts]: Start accepts. Automaton has 3118 states and 15549 transitions. Word has length 31 [2021-03-11 14:24:19,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:24:19,803 INFO L480 AbstractCegarLoop]: Abstraction has 3118 states and 15549 transitions. [2021-03-11 14:24:19,803 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:24:19,803 INFO L276 IsEmpty]: Start isEmpty. Operand 3118 states and 15549 transitions. [2021-03-11 14:24:19,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:24:19,808 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:24:19,808 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:24:19,808 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable566 [2021-03-11 14:24:19,808 INFO L428 AbstractCegarLoop]: === Iteration 568 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:24:19,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:24:19,808 INFO L82 PathProgramCache]: Analyzing trace with hash 1286347773, now seen corresponding path program 559 times [2021-03-11 14:24:19,808 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:24:19,808 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1086220040] [2021-03-11 14:24:19,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:24:19,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:24:19,820 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:24:19,821 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:24:19,822 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:24:19,823 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:24:19,835 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:24:19,836 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:24:19,856 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:24:19,857 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:24:19,887 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:24:19,888 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:24:19,927 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:24:19,928 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:24:19,976 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:24:19,977 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:24:20,037 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:24:20,038 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:24:20,106 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:24:20,107 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:24:20,188 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:24:20,189 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:24:20,282 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:24:20,283 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:24:20,367 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:24:20,367 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1086220040] [2021-03-11 14:24:20,367 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:24:20,367 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:24:20,367 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1820826860] [2021-03-11 14:24:20,367 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:24:20,367 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:24:20,367 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:24:20,367 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:24:20,367 INFO L87 Difference]: Start difference. First operand 3118 states and 15549 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:24:20,806 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 37 [2021-03-11 14:24:20,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:24:20,837 INFO L93 Difference]: Finished difference Result 6010 states and 26789 transitions. [2021-03-11 14:24:20,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:24:20,840 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:24:20,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:24:20,853 INFO L225 Difference]: With dead ends: 6010 [2021-03-11 14:24:20,853 INFO L226 Difference]: Without dead ends: 5994 [2021-03-11 14:24:20,853 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 655.9ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:24:20,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5994 states. [2021-03-11 14:24:20,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5994 to 3128. [2021-03-11 14:24:20,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3128 states, 3127 states have (on average 4.981451870802687) internal successors, (15577), 3127 states have internal predecessors, (15577), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:24:20,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3128 states to 3128 states and 15577 transitions. [2021-03-11 14:24:20,989 INFO L78 Accepts]: Start accepts. Automaton has 3128 states and 15577 transitions. Word has length 31 [2021-03-11 14:24:20,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:24:20,989 INFO L480 AbstractCegarLoop]: Abstraction has 3128 states and 15577 transitions. [2021-03-11 14:24:20,989 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:24:20,989 INFO L276 IsEmpty]: Start isEmpty. Operand 3128 states and 15577 transitions. [2021-03-11 14:24:20,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:24:20,994 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:24:20,994 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:24:20,994 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable567 [2021-03-11 14:24:20,994 INFO L428 AbstractCegarLoop]: === Iteration 569 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:24:20,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:24:20,994 INFO L82 PathProgramCache]: Analyzing trace with hash -403595131, now seen corresponding path program 560 times [2021-03-11 14:24:20,994 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:24:20,994 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [837546900] [2021-03-11 14:24:20,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:24:20,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:24:21,006 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:24:21,007 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:24:21,008 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:24:21,009 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:24:21,022 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:24:21,023 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:24:21,044 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:24:21,045 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:24:21,075 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:24:21,076 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:24:21,116 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:24:21,117 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:24:21,166 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:24:21,167 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:24:21,224 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:24:21,225 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:24:21,294 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:24:21,295 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:24:21,376 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:24:21,378 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:24:21,472 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:24:21,473 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:24:21,556 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:24:21,557 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [837546900] [2021-03-11 14:24:21,557 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:24:21,557 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:24:21,557 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1321808083] [2021-03-11 14:24:21,557 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:24:21,557 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:24:21,557 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:24:21,557 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:24:21,557 INFO L87 Difference]: Start difference. First operand 3128 states and 15577 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:24:22,006 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 38 [2021-03-11 14:24:22,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:24:22,045 INFO L93 Difference]: Finished difference Result 6011 states and 26786 transitions. [2021-03-11 14:24:22,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:24:22,048 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:24:22,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:24:22,062 INFO L225 Difference]: With dead ends: 6011 [2021-03-11 14:24:22,062 INFO L226 Difference]: Without dead ends: 5989 [2021-03-11 14:24:22,062 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 673.4ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:24:22,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5989 states. [2021-03-11 14:24:22,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5989 to 3123. [2021-03-11 14:24:22,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3123 states, 3122 states have (on average 4.984945547725816) internal successors, (15563), 3122 states have internal predecessors, (15563), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:24:22,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3123 states to 3123 states and 15563 transitions. [2021-03-11 14:24:22,205 INFO L78 Accepts]: Start accepts. Automaton has 3123 states and 15563 transitions. Word has length 31 [2021-03-11 14:24:22,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:24:22,205 INFO L480 AbstractCegarLoop]: Abstraction has 3123 states and 15563 transitions. [2021-03-11 14:24:22,205 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:24:22,205 INFO L276 IsEmpty]: Start isEmpty. Operand 3123 states and 15563 transitions. [2021-03-11 14:24:22,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:24:22,210 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:24:22,210 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:24:22,210 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable568 [2021-03-11 14:24:22,210 INFO L428 AbstractCegarLoop]: === Iteration 570 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:24:22,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:24:22,211 INFO L82 PathProgramCache]: Analyzing trace with hash 13414065, now seen corresponding path program 561 times [2021-03-11 14:24:22,211 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:24:22,211 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1745119103] [2021-03-11 14:24:22,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:24:22,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:24:22,222 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:24:22,224 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:24:22,225 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:24:22,226 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:24:22,239 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:24:22,240 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:24:22,264 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:24:22,265 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:24:22,299 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:24:22,300 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:24:22,344 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:24:22,345 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:24:22,399 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:24:22,400 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:24:22,464 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:24:22,466 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:24:22,542 INFO L142 QuantifierPusher]: treesize reduction 45, result has 59.1 percent of original size [2021-03-11 14:24:22,543 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:24:22,691 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 31 [2021-03-11 14:24:22,694 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:24:22,695 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:24:22,800 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:24:22,802 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:24:22,897 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:24:22,897 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1745119103] [2021-03-11 14:24:22,897 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:24:22,898 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:24:22,898 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [233163305] [2021-03-11 14:24:22,898 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:24:22,898 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:24:22,898 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:24:22,898 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:24:22,898 INFO L87 Difference]: Start difference. First operand 3123 states and 15563 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:24:23,372 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 37 [2021-03-11 14:24:23,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:24:23,407 INFO L93 Difference]: Finished difference Result 6012 states and 26788 transitions. [2021-03-11 14:24:23,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:24:23,410 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:24:23,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:24:23,423 INFO L225 Difference]: With dead ends: 6012 [2021-03-11 14:24:23,423 INFO L226 Difference]: Without dead ends: 5996 [2021-03-11 14:24:23,423 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 796.5ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:24:23,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5996 states. [2021-03-11 14:24:23,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5996 to 3128. [2021-03-11 14:24:23,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3128 states, 3127 states have (on average 4.979852894147745) internal successors, (15572), 3127 states have internal predecessors, (15572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:24:23,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3128 states to 3128 states and 15572 transitions. [2021-03-11 14:24:23,567 INFO L78 Accepts]: Start accepts. Automaton has 3128 states and 15572 transitions. Word has length 31 [2021-03-11 14:24:23,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:24:23,567 INFO L480 AbstractCegarLoop]: Abstraction has 3128 states and 15572 transitions. [2021-03-11 14:24:23,567 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:24:23,567 INFO L276 IsEmpty]: Start isEmpty. Operand 3128 states and 15572 transitions. [2021-03-11 14:24:23,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:24:23,572 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:24:23,572 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:24:23,573 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable569 [2021-03-11 14:24:23,573 INFO L428 AbstractCegarLoop]: === Iteration 571 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:24:23,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:24:23,573 INFO L82 PathProgramCache]: Analyzing trace with hash 83524101, now seen corresponding path program 562 times [2021-03-11 14:24:23,573 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:24:23,573 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [507156085] [2021-03-11 14:24:23,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:24:23,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:24:23,585 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:24:23,586 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:24:23,587 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:24:23,588 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:24:23,601 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:24:23,602 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:24:23,626 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:24:23,627 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:24:23,661 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:24:23,662 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:24:23,705 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:24:23,706 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:24:23,760 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:24:23,761 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:24:23,826 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:24:23,827 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:24:23,902 INFO L142 QuantifierPusher]: treesize reduction 45, result has 59.1 percent of original size [2021-03-11 14:24:23,904 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:24:24,047 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 31 [2021-03-11 14:24:24,050 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:24:24,051 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:24:24,154 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:24:24,155 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:24:24,240 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:24:24,240 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [507156085] [2021-03-11 14:24:24,240 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:24:24,240 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:24:24,240 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [646657783] [2021-03-11 14:24:24,240 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:24:24,240 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:24:24,240 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:24:24,241 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:24:24,241 INFO L87 Difference]: Start difference. First operand 3128 states and 15572 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:24:24,674 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 40 [2021-03-11 14:24:24,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:24:24,714 INFO L93 Difference]: Finished difference Result 6015 states and 26789 transitions. [2021-03-11 14:24:24,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:24:24,717 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:24:24,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:24:24,729 INFO L225 Difference]: With dead ends: 6015 [2021-03-11 14:24:24,730 INFO L226 Difference]: Without dead ends: 5991 [2021-03-11 14:24:24,730 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 777.9ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:24:24,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5991 states. [2021-03-11 14:24:24,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5991 to 3123. [2021-03-11 14:24:24,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3123 states, 3122 states have (on average 4.98334401024984) internal successors, (15558), 3122 states have internal predecessors, (15558), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:24:24,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3123 states to 3123 states and 15558 transitions. [2021-03-11 14:24:24,864 INFO L78 Accepts]: Start accepts. Automaton has 3123 states and 15558 transitions. Word has length 31 [2021-03-11 14:24:24,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:24:24,864 INFO L480 AbstractCegarLoop]: Abstraction has 3123 states and 15558 transitions. [2021-03-11 14:24:24,864 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:24:24,864 INFO L276 IsEmpty]: Start isEmpty. Operand 3123 states and 15558 transitions. [2021-03-11 14:24:24,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:24:24,869 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:24:24,869 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:24:24,869 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable570 [2021-03-11 14:24:24,869 INFO L428 AbstractCegarLoop]: === Iteration 572 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:24:24,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:24:24,869 INFO L82 PathProgramCache]: Analyzing trace with hash 1769815985, now seen corresponding path program 563 times [2021-03-11 14:24:24,869 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:24:24,869 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [659369656] [2021-03-11 14:24:24,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:24:24,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:24:24,881 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:24:24,881 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:24:24,882 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:24:24,883 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:24:24,895 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:24:24,896 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:24:24,917 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:24:24,918 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:24:24,949 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:24:24,950 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:24:24,995 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:24:24,996 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:24:25,046 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:24:25,047 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:24:25,106 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:24:25,107 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:24:25,177 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:24:25,179 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:24:25,259 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:24:25,260 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:24:25,354 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:24:25,355 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:24:25,439 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:24:25,439 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [659369656] [2021-03-11 14:24:25,439 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:24:25,439 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:24:25,439 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1178943999] [2021-03-11 14:24:25,439 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:24:25,439 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:24:25,439 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:24:25,439 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:24:25,439 INFO L87 Difference]: Start difference. First operand 3123 states and 15558 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:24:25,801 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 38 [2021-03-11 14:24:25,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:24:25,832 INFO L93 Difference]: Finished difference Result 6015 states and 26790 transitions. [2021-03-11 14:24:25,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:24:25,834 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:24:25,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:24:25,847 INFO L225 Difference]: With dead ends: 6015 [2021-03-11 14:24:25,847 INFO L226 Difference]: Without dead ends: 5998 [2021-03-11 14:24:25,847 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 667.4ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:24:25,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5998 states. [2021-03-11 14:24:25,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5998 to 3129. [2021-03-11 14:24:25,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3129 states, 3128 states have (on average 4.97730179028133) internal successors, (15569), 3128 states have internal predecessors, (15569), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:24:25,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3129 states to 3129 states and 15569 transitions. [2021-03-11 14:24:25,982 INFO L78 Accepts]: Start accepts. Automaton has 3129 states and 15569 transitions. Word has length 31 [2021-03-11 14:24:25,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:24:25,982 INFO L480 AbstractCegarLoop]: Abstraction has 3129 states and 15569 transitions. [2021-03-11 14:24:25,982 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:24:25,982 INFO L276 IsEmpty]: Start isEmpty. Operand 3129 states and 15569 transitions. [2021-03-11 14:24:25,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:24:25,987 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:24:25,987 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:24:25,987 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable571 [2021-03-11 14:24:25,987 INFO L428 AbstractCegarLoop]: === Iteration 573 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:24:25,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:24:25,987 INFO L82 PathProgramCache]: Analyzing trace with hash -765098371, now seen corresponding path program 564 times [2021-03-11 14:24:25,987 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:24:25,987 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [999227489] [2021-03-11 14:24:25,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:24:25,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:24:25,999 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:24:26,000 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:24:26,001 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:24:26,002 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:24:26,014 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:24:26,015 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:24:26,036 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:24:26,037 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:24:26,066 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:24:26,067 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:24:26,107 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:24:26,108 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:24:26,157 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:24:26,158 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:24:26,216 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:24:26,217 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:24:26,285 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:24:26,286 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:24:26,367 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:24:26,368 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:24:26,464 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:24:26,465 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:24:26,550 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:24:26,550 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [999227489] [2021-03-11 14:24:26,550 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:24:26,550 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:24:26,550 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205909371] [2021-03-11 14:24:26,550 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:24:26,551 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:24:26,551 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:24:26,551 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:24:26,551 INFO L87 Difference]: Start difference. First operand 3129 states and 15569 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:24:26,939 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 40 [2021-03-11 14:24:26,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:24:26,977 INFO L93 Difference]: Finished difference Result 6017 states and 26788 transitions. [2021-03-11 14:24:26,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:24:26,980 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:24:26,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:24:26,993 INFO L225 Difference]: With dead ends: 6017 [2021-03-11 14:24:26,993 INFO L226 Difference]: Without dead ends: 5987 [2021-03-11 14:24:26,993 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 669.5ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:24:27,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5987 states. [2021-03-11 14:24:27,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5987 to 3118. [2021-03-11 14:24:27,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3118 states, 3117 states have (on average 4.986846326596086) internal successors, (15544), 3117 states have internal predecessors, (15544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:24:27,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3118 states to 3118 states and 15544 transitions. [2021-03-11 14:24:27,126 INFO L78 Accepts]: Start accepts. Automaton has 3118 states and 15544 transitions. Word has length 31 [2021-03-11 14:24:27,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:24:27,126 INFO L480 AbstractCegarLoop]: Abstraction has 3118 states and 15544 transitions. [2021-03-11 14:24:27,127 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:24:27,127 INFO L276 IsEmpty]: Start isEmpty. Operand 3118 states and 15544 transitions. [2021-03-11 14:24:27,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:24:27,131 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:24:27,131 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:24:27,131 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable572 [2021-03-11 14:24:27,131 INFO L428 AbstractCegarLoop]: === Iteration 574 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:24:27,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:24:27,132 INFO L82 PathProgramCache]: Analyzing trace with hash 1701187261, now seen corresponding path program 565 times [2021-03-11 14:24:27,132 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:24:27,132 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [640702296] [2021-03-11 14:24:27,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:24:27,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:24:27,143 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:24:27,144 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:24:27,145 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:24:27,146 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:24:27,158 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:24:27,159 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:24:27,180 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:24:27,181 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:24:27,211 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:24:27,212 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:24:27,252 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:24:27,253 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:24:27,301 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:24:27,302 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:24:27,362 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:24:27,363 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:24:27,483 INFO L142 QuantifierPusher]: treesize reduction 54, result has 55.4 percent of original size [2021-03-11 14:24:27,484 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-03-11 14:24:27,608 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:24:27,610 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:24:27,705 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:24:27,706 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:24:27,793 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:24:27,793 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [640702296] [2021-03-11 14:24:27,793 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:24:27,793 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:24:27,794 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1585522998] [2021-03-11 14:24:27,794 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:24:27,794 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:24:27,794 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:24:27,794 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:24:27,794 INFO L87 Difference]: Start difference. First operand 3118 states and 15544 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:24:28,405 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 37 [2021-03-11 14:24:28,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:24:28,437 INFO L93 Difference]: Finished difference Result 6026 states and 26817 transitions. [2021-03-11 14:24:28,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:24:28,440 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:24:28,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:24:28,453 INFO L225 Difference]: With dead ends: 6026 [2021-03-11 14:24:28,453 INFO L226 Difference]: Without dead ends: 6010 [2021-03-11 14:24:28,454 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 764.7ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:24:28,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6010 states. [2021-03-11 14:24:28,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6010 to 3130. [2021-03-11 14:24:28,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3130 states, 3129 states have (on average 4.978267817193991) internal successors, (15577), 3129 states have internal predecessors, (15577), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:24:28,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3130 states to 3130 states and 15577 transitions. [2021-03-11 14:24:28,587 INFO L78 Accepts]: Start accepts. Automaton has 3130 states and 15577 transitions. Word has length 31 [2021-03-11 14:24:28,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:24:28,587 INFO L480 AbstractCegarLoop]: Abstraction has 3130 states and 15577 transitions. [2021-03-11 14:24:28,587 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:24:28,587 INFO L276 IsEmpty]: Start isEmpty. Operand 3130 states and 15577 transitions. [2021-03-11 14:24:28,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:24:28,592 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:24:28,592 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:24:28,592 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable573 [2021-03-11 14:24:28,592 INFO L428 AbstractCegarLoop]: === Iteration 575 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:24:28,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:24:28,592 INFO L82 PathProgramCache]: Analyzing trace with hash -2101184273, now seen corresponding path program 566 times [2021-03-11 14:24:28,592 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:24:28,592 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2097015481] [2021-03-11 14:24:28,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:24:28,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:24:28,604 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:24:28,605 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:24:28,606 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:24:28,607 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:24:28,619 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:24:28,620 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:24:28,641 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:24:28,642 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:24:28,672 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:24:28,674 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:24:28,716 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:24:28,717 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:24:28,767 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:24:28,768 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:24:28,827 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:24:28,828 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:24:28,946 INFO L142 QuantifierPusher]: treesize reduction 54, result has 55.4 percent of original size [2021-03-11 14:24:28,948 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-03-11 14:24:29,072 INFO L142 QuantifierPusher]: treesize reduction 72, result has 49.7 percent of original size [2021-03-11 14:24:29,073 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-03-11 14:24:29,171 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:24:29,172 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:24:29,257 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:24:29,258 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2097015481] [2021-03-11 14:24:29,258 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:24:29,258 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:24:29,258 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [998348510] [2021-03-11 14:24:29,258 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:24:29,258 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:24:29,258 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:24:29,258 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:24:29,258 INFO L87 Difference]: Start difference. First operand 3130 states and 15577 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:24:29,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:24:29,834 INFO L93 Difference]: Finished difference Result 6032 states and 26823 transitions. [2021-03-11 14:24:29,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:24:29,837 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:24:29,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:24:29,849 INFO L225 Difference]: With dead ends: 6032 [2021-03-11 14:24:29,850 INFO L226 Difference]: Without dead ends: 6004 [2021-03-11 14:24:29,850 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 702.5ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:24:29,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6004 states. [2021-03-11 14:24:29,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6004 to 3124. [2021-03-11 14:24:29,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3124 states, 3123 states have (on average 4.9823887287864235) internal successors, (15560), 3123 states have internal predecessors, (15560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:24:29,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3124 states to 3124 states and 15560 transitions. [2021-03-11 14:24:29,983 INFO L78 Accepts]: Start accepts. Automaton has 3124 states and 15560 transitions. Word has length 31 [2021-03-11 14:24:29,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:24:29,983 INFO L480 AbstractCegarLoop]: Abstraction has 3124 states and 15560 transitions. [2021-03-11 14:24:29,983 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:24:29,983 INFO L276 IsEmpty]: Start isEmpty. Operand 3124 states and 15560 transitions. [2021-03-11 14:24:29,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:24:29,988 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:24:29,988 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:24:29,988 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable574 [2021-03-11 14:24:29,988 INFO L428 AbstractCegarLoop]: === Iteration 576 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:24:29,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:24:29,988 INFO L82 PathProgramCache]: Analyzing trace with hash 1489031643, now seen corresponding path program 567 times [2021-03-11 14:24:29,988 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:24:29,988 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1441783594] [2021-03-11 14:24:29,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:24:29,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:24:30,000 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:24:30,001 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:24:30,002 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:24:30,003 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:24:30,017 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:24:30,018 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:24:30,040 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:24:30,040 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:24:30,072 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:24:30,073 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:24:30,116 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:24:30,117 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:24:30,169 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:24:30,170 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:24:30,232 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:24:30,233 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:24:30,353 INFO L142 QuantifierPusher]: treesize reduction 45, result has 59.1 percent of original size [2021-03-11 14:24:30,354 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:24:30,487 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 31 [2021-03-11 14:24:30,490 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:24:30,491 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:24:30,586 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:24:30,587 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:24:30,673 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:24:30,673 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1441783594] [2021-03-11 14:24:30,673 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:24:30,674 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:24:30,674 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [23363846] [2021-03-11 14:24:30,674 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:24:30,674 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:24:30,674 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:24:30,674 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:24:30,674 INFO L87 Difference]: Start difference. First operand 3124 states and 15560 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:24:31,307 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 37 [2021-03-11 14:24:31,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:24:31,340 INFO L93 Difference]: Finished difference Result 6022 states and 26804 transitions. [2021-03-11 14:24:31,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:24:31,343 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:24:31,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:24:31,356 INFO L225 Difference]: With dead ends: 6022 [2021-03-11 14:24:31,356 INFO L226 Difference]: Without dead ends: 6006 [2021-03-11 14:24:31,356 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 792.4ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:24:31,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6006 states. [2021-03-11 14:24:31,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6006 to 3129. [2021-03-11 14:24:31,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3129 states, 3128 states have (on average 4.97730179028133) internal successors, (15569), 3128 states have internal predecessors, (15569), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:24:31,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3129 states to 3129 states and 15569 transitions. [2021-03-11 14:24:31,492 INFO L78 Accepts]: Start accepts. Automaton has 3129 states and 15569 transitions. Word has length 31 [2021-03-11 14:24:31,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:24:31,492 INFO L480 AbstractCegarLoop]: Abstraction has 3129 states and 15569 transitions. [2021-03-11 14:24:31,492 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:24:31,492 INFO L276 IsEmpty]: Start isEmpty. Operand 3129 states and 15569 transitions. [2021-03-11 14:24:31,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:24:31,497 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:24:31,497 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:24:31,497 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable575 [2021-03-11 14:24:31,497 INFO L428 AbstractCegarLoop]: === Iteration 577 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:24:31,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:24:31,497 INFO L82 PathProgramCache]: Analyzing trace with hash 1559141679, now seen corresponding path program 568 times [2021-03-11 14:24:31,497 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:24:31,497 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [866204482] [2021-03-11 14:24:31,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:24:31,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:24:31,509 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:24:31,510 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:24:31,511 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:24:31,512 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:24:31,525 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:24:31,526 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:24:31,548 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:24:31,549 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:24:31,580 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:24:31,581 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:24:31,627 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:24:31,628 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:24:31,683 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:24:31,684 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:24:31,750 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:24:31,752 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:24:31,879 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 27 [2021-03-11 14:24:31,881 INFO L142 QuantifierPusher]: treesize reduction 45, result has 59.1 percent of original size [2021-03-11 14:24:31,882 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:24:32,030 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 31 [2021-03-11 14:24:32,033 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:24:32,034 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:24:32,141 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:24:32,143 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:24:32,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:24:32,238 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [866204482] [2021-03-11 14:24:32,238 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:24:32,238 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:24:32,238 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2136212228] [2021-03-11 14:24:32,238 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:24:32,238 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:24:32,238 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:24:32,239 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:24:32,239 INFO L87 Difference]: Start difference. First operand 3129 states and 15569 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:24:32,743 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 40 [2021-03-11 14:24:32,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:24:32,785 INFO L93 Difference]: Finished difference Result 6025 states and 26805 transitions. [2021-03-11 14:24:32,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:24:32,788 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:24:32,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:24:32,801 INFO L225 Difference]: With dead ends: 6025 [2021-03-11 14:24:32,801 INFO L226 Difference]: Without dead ends: 6001 [2021-03-11 14:24:32,801 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 860.9ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:24:32,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6001 states. [2021-03-11 14:24:32,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6001 to 3124. [2021-03-11 14:24:32,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3124 states, 3123 states have (on average 4.980787704130644) internal successors, (15555), 3123 states have internal predecessors, (15555), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:24:32,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3124 states to 3124 states and 15555 transitions. [2021-03-11 14:24:32,937 INFO L78 Accepts]: Start accepts. Automaton has 3124 states and 15555 transitions. Word has length 31 [2021-03-11 14:24:32,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:24:32,937 INFO L480 AbstractCegarLoop]: Abstraction has 3124 states and 15555 transitions. [2021-03-11 14:24:32,937 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:24:32,937 INFO L276 IsEmpty]: Start isEmpty. Operand 3124 states and 15555 transitions. [2021-03-11 14:24:32,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:24:32,942 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:24:32,942 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:24:32,942 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable576 [2021-03-11 14:24:32,942 INFO L428 AbstractCegarLoop]: === Iteration 578 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:24:32,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:24:32,942 INFO L82 PathProgramCache]: Analyzing trace with hash 72226843, now seen corresponding path program 569 times [2021-03-11 14:24:32,943 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:24:32,943 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1764143000] [2021-03-11 14:24:32,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:24:32,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:24:32,954 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:24:32,955 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:24:32,956 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:24:32,957 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:24:32,969 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:24:32,970 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:24:32,991 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:24:32,992 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:24:33,023 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:24:33,024 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:24:33,065 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:24:33,066 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:24:33,116 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:24:33,117 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:24:33,177 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:24:33,178 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:24:33,297 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:24:33,298 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:24:33,386 INFO L142 QuantifierPusher]: treesize reduction 72, result has 49.7 percent of original size [2021-03-11 14:24:33,387 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-03-11 14:24:33,486 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:24:33,487 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:24:33,572 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:24:33,573 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1764143000] [2021-03-11 14:24:33,573 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:24:33,573 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:24:33,573 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619367998] [2021-03-11 14:24:33,573 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:24:33,573 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:24:33,573 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:24:33,573 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:24:33,573 INFO L87 Difference]: Start difference. First operand 3124 states and 15555 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:24:34,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:24:34,015 INFO L93 Difference]: Finished difference Result 6038 states and 26832 transitions. [2021-03-11 14:24:34,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:24:34,018 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:24:34,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:24:34,031 INFO L225 Difference]: With dead ends: 6038 [2021-03-11 14:24:34,031 INFO L226 Difference]: Without dead ends: 6016 [2021-03-11 14:24:34,031 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 667.0ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:24:34,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6016 states. [2021-03-11 14:24:34,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6016 to 3133. [2021-03-11 14:24:34,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3133 states, 3132 states have (on average 4.971583652618135) internal successors, (15571), 3132 states have internal predecessors, (15571), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:24:34,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3133 states to 3133 states and 15571 transitions. [2021-03-11 14:24:34,164 INFO L78 Accepts]: Start accepts. Automaton has 3133 states and 15571 transitions. Word has length 31 [2021-03-11 14:24:34,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:24:34,165 INFO L480 AbstractCegarLoop]: Abstraction has 3133 states and 15571 transitions. [2021-03-11 14:24:34,165 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:24:34,165 INFO L276 IsEmpty]: Start isEmpty. Operand 3133 states and 15571 transitions. [2021-03-11 14:24:34,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:24:34,169 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:24:34,169 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:24:34,169 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable577 [2021-03-11 14:24:34,169 INFO L428 AbstractCegarLoop]: === Iteration 579 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:24:34,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:24:34,170 INFO L82 PathProgramCache]: Analyzing trace with hash -350258883, now seen corresponding path program 570 times [2021-03-11 14:24:34,170 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:24:34,170 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1721804900] [2021-03-11 14:24:34,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:24:34,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:24:34,181 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:24:34,182 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:24:34,183 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:24:34,184 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:24:34,197 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:24:34,198 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:24:34,219 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:24:34,220 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:24:34,250 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:24:34,251 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:24:34,292 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:24:34,293 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:24:34,343 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:24:34,344 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:24:34,403 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:24:34,404 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:24:34,522 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:24:34,523 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:24:34,611 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:24:34,613 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:24:34,712 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:24:34,713 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:24:34,800 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:24:34,800 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1721804900] [2021-03-11 14:24:34,800 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:24:34,800 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:24:34,800 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [707986082] [2021-03-11 14:24:34,800 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:24:34,800 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:24:34,801 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:24:34,801 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:24:34,801 INFO L87 Difference]: Start difference. First operand 3133 states and 15571 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:24:35,259 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 40 [2021-03-11 14:24:35,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:24:35,304 INFO L93 Difference]: Finished difference Result 6035 states and 26818 transitions. [2021-03-11 14:24:35,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:24:35,306 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:24:35,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:24:35,319 INFO L225 Difference]: With dead ends: 6035 [2021-03-11 14:24:35,319 INFO L226 Difference]: Without dead ends: 6001 [2021-03-11 14:24:35,320 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 740.7ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:24:35,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6001 states. [2021-03-11 14:24:35,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6001 to 3118. [2021-03-11 14:24:35,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3118 states, 3117 states have (on average 4.984921398780879) internal successors, (15538), 3117 states have internal predecessors, (15538), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:24:35,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3118 states to 3118 states and 15538 transitions. [2021-03-11 14:24:35,453 INFO L78 Accepts]: Start accepts. Automaton has 3118 states and 15538 transitions. Word has length 31 [2021-03-11 14:24:35,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:24:35,453 INFO L480 AbstractCegarLoop]: Abstraction has 3118 states and 15538 transitions. [2021-03-11 14:24:35,453 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:24:35,453 INFO L276 IsEmpty]: Start isEmpty. Operand 3118 states and 15538 transitions. [2021-03-11 14:24:35,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:24:35,458 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:24:35,458 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:24:35,458 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable578 [2021-03-11 14:24:35,458 INFO L428 AbstractCegarLoop]: === Iteration 580 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:24:35,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:24:35,458 INFO L82 PathProgramCache]: Analyzing trace with hash -1374870971, now seen corresponding path program 571 times [2021-03-11 14:24:35,458 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:24:35,458 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1419265472] [2021-03-11 14:24:35,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:24:35,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:24:35,470 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:24:35,471 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:24:35,472 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:24:35,473 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:24:35,485 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:24:35,486 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:24:35,507 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:24:35,508 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:24:35,539 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:24:35,540 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:24:35,581 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:24:35,582 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:24:35,632 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:24:35,634 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:24:35,693 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:24:35,694 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:24:35,766 INFO L142 QuantifierPusher]: treesize reduction 54, result has 55.4 percent of original size [2021-03-11 14:24:35,767 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-03-11 14:24:35,904 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 32 [2021-03-11 14:24:35,907 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:24:35,908 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:24:36,005 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:24:36,006 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:24:36,096 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:24:36,096 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1419265472] [2021-03-11 14:24:36,096 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:24:36,096 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:24:36,096 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [639052814] [2021-03-11 14:24:36,096 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:24:36,096 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:24:36,096 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:24:36,096 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:24:36,096 INFO L87 Difference]: Start difference. First operand 3118 states and 15538 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:24:36,448 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 38 [2021-03-11 14:24:36,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:24:36,481 INFO L93 Difference]: Finished difference Result 6033 states and 26830 transitions. [2021-03-11 14:24:36,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:24:36,483 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:24:36,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:24:36,496 INFO L225 Difference]: With dead ends: 6033 [2021-03-11 14:24:36,496 INFO L226 Difference]: Without dead ends: 6016 [2021-03-11 14:24:36,497 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 737.9ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:24:36,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6016 states. [2021-03-11 14:24:36,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6016 to 3132. [2021-03-11 14:24:36,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3132 states, 3131 states have (on average 4.975087831363782) internal successors, (15577), 3131 states have internal predecessors, (15577), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:24:36,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3132 states to 3132 states and 15577 transitions. [2021-03-11 14:24:36,631 INFO L78 Accepts]: Start accepts. Automaton has 3132 states and 15577 transitions. Word has length 31 [2021-03-11 14:24:36,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:24:36,631 INFO L480 AbstractCegarLoop]: Abstraction has 3132 states and 15577 transitions. [2021-03-11 14:24:36,631 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:24:36,631 INFO L276 IsEmpty]: Start isEmpty. Operand 3132 states and 15577 transitions. [2021-03-11 14:24:36,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:24:36,636 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:24:36,636 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:24:36,636 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable579 [2021-03-11 14:24:36,636 INFO L428 AbstractCegarLoop]: === Iteration 581 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:24:36,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:24:36,636 INFO L82 PathProgramCache]: Analyzing trace with hash 807667695, now seen corresponding path program 572 times [2021-03-11 14:24:36,636 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:24:36,636 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1338526697] [2021-03-11 14:24:36,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:24:36,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:24:36,648 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:24:36,649 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:24:36,650 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:24:36,651 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:24:36,664 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:24:36,664 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:24:36,686 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:24:36,687 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:24:36,717 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:24:36,718 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:24:36,760 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:24:36,761 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:24:36,810 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:24:36,812 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:24:36,871 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:24:36,872 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:24:36,943 INFO L142 QuantifierPusher]: treesize reduction 54, result has 55.4 percent of original size [2021-03-11 14:24:36,944 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-03-11 14:24:37,081 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 32 [2021-03-11 14:24:37,084 INFO L142 QuantifierPusher]: treesize reduction 72, result has 49.7 percent of original size [2021-03-11 14:24:37,085 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-03-11 14:24:37,184 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:24:37,185 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:24:37,273 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:24:37,273 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1338526697] [2021-03-11 14:24:37,273 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:24:37,273 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:24:37,273 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [567254290] [2021-03-11 14:24:37,274 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:24:37,274 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:24:37,274 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:24:37,274 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:24:37,274 INFO L87 Difference]: Start difference. First operand 3132 states and 15577 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:24:37,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:24:37,605 INFO L93 Difference]: Finished difference Result 6038 states and 26833 transitions. [2021-03-11 14:24:37,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:24:37,608 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:24:37,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:24:37,621 INFO L225 Difference]: With dead ends: 6038 [2021-03-11 14:24:37,621 INFO L226 Difference]: Without dead ends: 6009 [2021-03-11 14:24:37,621 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 676.4ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:24:37,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6009 states. [2021-03-11 14:24:37,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6009 to 3125. [2021-03-11 14:24:37,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3125 states, 3124 states have (on average 4.979833546734955) internal successors, (15557), 3124 states have internal predecessors, (15557), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:24:37,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3125 states to 3125 states and 15557 transitions. [2021-03-11 14:24:37,755 INFO L78 Accepts]: Start accepts. Automaton has 3125 states and 15557 transitions. Word has length 31 [2021-03-11 14:24:37,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:24:37,755 INFO L480 AbstractCegarLoop]: Abstraction has 3125 states and 15557 transitions. [2021-03-11 14:24:37,756 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:24:37,756 INFO L276 IsEmpty]: Start isEmpty. Operand 3125 states and 15557 transitions. [2021-03-11 14:24:37,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:24:37,760 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:24:37,760 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:24:37,760 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable580 [2021-03-11 14:24:37,760 INFO L428 AbstractCegarLoop]: === Iteration 582 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:24:37,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:24:37,761 INFO L82 PathProgramCache]: Analyzing trace with hash -1587026589, now seen corresponding path program 573 times [2021-03-11 14:24:37,761 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:24:37,761 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1018234580] [2021-03-11 14:24:37,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:24:37,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:24:37,772 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:24:37,773 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:24:37,774 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:24:37,775 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:24:37,788 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:24:37,789 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:24:37,812 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:24:37,813 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:24:37,846 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:24:37,847 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:24:37,891 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:24:37,892 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:24:37,944 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:24:37,946 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:24:38,006 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:24:38,008 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:24:38,080 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:24:38,081 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:24:38,166 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:24:38,167 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:24:38,265 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:24:38,266 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:24:38,353 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:24:38,353 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1018234580] [2021-03-11 14:24:38,353 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:24:38,353 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:24:38,353 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [908520464] [2021-03-11 14:24:38,354 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:24:38,354 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:24:38,354 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:24:38,354 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:24:38,354 INFO L87 Difference]: Start difference. First operand 3125 states and 15557 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:24:38,740 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 38 [2021-03-11 14:24:38,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:24:38,772 INFO L93 Difference]: Finished difference Result 6029 states and 26816 transitions. [2021-03-11 14:24:38,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:24:38,775 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:24:38,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:24:38,788 INFO L225 Difference]: With dead ends: 6029 [2021-03-11 14:24:38,788 INFO L226 Difference]: Without dead ends: 6012 [2021-03-11 14:24:38,788 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 696.1ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:24:38,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6012 states. [2021-03-11 14:24:38,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6012 to 3131. [2021-03-11 14:24:38,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3131 states, 3130 states have (on average 4.973801916932907) internal successors, (15568), 3130 states have internal predecessors, (15568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:24:38,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3131 states to 3131 states and 15568 transitions. [2021-03-11 14:24:38,924 INFO L78 Accepts]: Start accepts. Automaton has 3131 states and 15568 transitions. Word has length 31 [2021-03-11 14:24:38,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:24:38,924 INFO L480 AbstractCegarLoop]: Abstraction has 3131 states and 15568 transitions. [2021-03-11 14:24:38,924 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:24:38,924 INFO L276 IsEmpty]: Start isEmpty. Operand 3131 states and 15568 transitions. [2021-03-11 14:24:38,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:24:38,929 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:24:38,929 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:24:38,929 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable581 [2021-03-11 14:24:38,929 INFO L428 AbstractCegarLoop]: === Iteration 583 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:24:38,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:24:38,929 INFO L82 PathProgramCache]: Analyzing trace with hash 173026351, now seen corresponding path program 574 times [2021-03-11 14:24:38,929 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:24:38,929 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [738981245] [2021-03-11 14:24:38,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:24:38,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:24:38,941 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:24:38,942 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:24:38,943 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:24:38,944 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:24:38,957 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:24:38,958 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:24:38,980 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:24:38,980 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:24:39,012 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:24:39,013 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:24:39,054 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:24:39,055 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:24:39,106 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:24:39,107 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:24:39,169 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:24:39,170 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:24:39,243 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:24:39,244 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:24:39,328 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:24:39,329 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:24:39,430 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:24:39,431 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:24:39,519 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:24:39,520 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [738981245] [2021-03-11 14:24:39,520 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:24:39,520 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:24:39,520 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [287423109] [2021-03-11 14:24:39,520 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:24:39,520 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:24:39,520 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:24:39,520 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:24:39,520 INFO L87 Difference]: Start difference. First operand 3131 states and 15568 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:24:39,917 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 40 [2021-03-11 14:24:39,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:24:39,962 INFO L93 Difference]: Finished difference Result 6031 states and 26814 transitions. [2021-03-11 14:24:39,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:24:39,965 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:24:39,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:24:39,978 INFO L225 Difference]: With dead ends: 6031 [2021-03-11 14:24:39,978 INFO L226 Difference]: Without dead ends: 6006 [2021-03-11 14:24:39,979 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 704.8ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:24:40,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6006 states. [2021-03-11 14:24:40,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6006 to 3125. [2021-03-11 14:24:40,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3125 states, 3124 states have (on average 4.977912932138285) internal successors, (15551), 3124 states have internal predecessors, (15551), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:24:40,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3125 states to 3125 states and 15551 transitions. [2021-03-11 14:24:40,114 INFO L78 Accepts]: Start accepts. Automaton has 3125 states and 15551 transitions. Word has length 31 [2021-03-11 14:24:40,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:24:40,114 INFO L480 AbstractCegarLoop]: Abstraction has 3125 states and 15551 transitions. [2021-03-11 14:24:40,114 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:24:40,114 INFO L276 IsEmpty]: Start isEmpty. Operand 3125 states and 15551 transitions. [2021-03-11 14:24:40,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:24:40,119 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:24:40,119 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:24:40,119 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable582 [2021-03-11 14:24:40,119 INFO L428 AbstractCegarLoop]: === Iteration 584 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:24:40,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:24:40,119 INFO L82 PathProgramCache]: Analyzing trace with hash -465266013, now seen corresponding path program 575 times [2021-03-11 14:24:40,119 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:24:40,119 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [506126383] [2021-03-11 14:24:40,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:24:40,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:24:40,136 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:24:40,138 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:24:40,139 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:24:40,140 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:24:40,157 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:24:40,158 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:24:40,186 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:24:40,187 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:24:40,228 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:24:40,229 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:24:40,286 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:24:40,287 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:24:40,341 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:24:40,342 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:24:40,404 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:24:40,405 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:24:40,478 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:24:40,479 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:24:40,577 INFO L142 QuantifierPusher]: treesize reduction 72, result has 49.7 percent of original size [2021-03-11 14:24:40,578 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-03-11 14:24:40,694 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:24:40,695 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:24:40,795 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:24:40,795 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [506126383] [2021-03-11 14:24:40,795 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:24:40,795 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:24:40,795 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [571140850] [2021-03-11 14:24:40,795 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:24:40,795 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:24:40,795 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:24:40,796 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:24:40,796 INFO L87 Difference]: Start difference. First operand 3125 states and 15551 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:24:41,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:24:41,165 INFO L93 Difference]: Finished difference Result 6042 states and 26836 transitions. [2021-03-11 14:24:41,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:24:41,168 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:24:41,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:24:41,182 INFO L225 Difference]: With dead ends: 6042 [2021-03-11 14:24:41,183 INFO L226 Difference]: Without dead ends: 6020 [2021-03-11 14:24:41,183 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 717.7ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:24:41,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6020 states. [2021-03-11 14:24:41,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6020 to 3134. [2021-03-11 14:24:41,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3134 states, 3133 states have (on average 4.968720076603894) internal successors, (15567), 3133 states have internal predecessors, (15567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:24:41,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3134 states to 3134 states and 15567 transitions. [2021-03-11 14:24:41,325 INFO L78 Accepts]: Start accepts. Automaton has 3134 states and 15567 transitions. Word has length 31 [2021-03-11 14:24:41,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:24:41,325 INFO L480 AbstractCegarLoop]: Abstraction has 3134 states and 15567 transitions. [2021-03-11 14:24:41,326 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:24:41,326 INFO L276 IsEmpty]: Start isEmpty. Operand 3134 states and 15567 transitions. [2021-03-11 14:24:41,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:24:41,330 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:24:41,330 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:24:41,330 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable583 [2021-03-11 14:24:41,331 INFO L428 AbstractCegarLoop]: === Iteration 585 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:24:41,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:24:41,331 INFO L82 PathProgramCache]: Analyzing trace with hash -887751739, now seen corresponding path program 576 times [2021-03-11 14:24:41,331 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:24:41,331 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [307344566] [2021-03-11 14:24:41,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:24:41,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:24:41,343 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:24:41,344 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:24:41,345 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:24:41,346 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:24:41,359 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:24:41,360 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:24:41,382 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:24:41,383 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:24:41,416 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:24:41,417 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:24:41,460 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:24:41,461 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:24:41,513 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:24:41,514 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:24:41,577 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:24:41,578 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:24:41,653 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:24:41,654 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:24:41,744 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:24:41,746 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:24:41,847 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:24:41,848 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:24:41,942 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:24:41,943 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [307344566] [2021-03-11 14:24:41,943 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:24:41,943 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:24:41,943 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [384069753] [2021-03-11 14:24:41,943 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:24:41,943 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:24:41,943 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:24:41,943 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:24:41,943 INFO L87 Difference]: Start difference. First operand 3134 states and 15567 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:24:42,428 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 40 [2021-03-11 14:24:42,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:24:42,485 INFO L93 Difference]: Finished difference Result 6039 states and 26822 transitions. [2021-03-11 14:24:42,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:24:42,488 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:24:42,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:24:42,501 INFO L225 Difference]: With dead ends: 6039 [2021-03-11 14:24:42,501 INFO L226 Difference]: Without dead ends: 5998 [2021-03-11 14:24:42,501 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 729.4ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:24:42,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5998 states. [2021-03-11 14:24:42,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5998 to 3112. [2021-03-11 14:24:42,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3112 states, 3111 states have (on average 4.9890710382513666) internal successors, (15521), 3111 states have internal predecessors, (15521), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:24:42,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3112 states to 3112 states and 15521 transitions. [2021-03-11 14:24:42,637 INFO L78 Accepts]: Start accepts. Automaton has 3112 states and 15521 transitions. Word has length 31 [2021-03-11 14:24:42,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:24:42,637 INFO L480 AbstractCegarLoop]: Abstraction has 3112 states and 15521 transitions. [2021-03-11 14:24:42,637 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:24:42,637 INFO L276 IsEmpty]: Start isEmpty. Operand 3112 states and 15521 transitions. [2021-03-11 14:24:42,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:24:42,642 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:24:42,642 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:24:42,642 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable584 [2021-03-11 14:24:42,642 INFO L428 AbstractCegarLoop]: === Iteration 586 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:24:42,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:24:42,642 INFO L82 PathProgramCache]: Analyzing trace with hash -2005996453, now seen corresponding path program 577 times [2021-03-11 14:24:42,642 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:24:42,642 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [928292158] [2021-03-11 14:24:42,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:24:42,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:24:42,654 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:24:42,655 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:24:42,656 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:24:42,657 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:24:42,671 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:24:42,672 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:24:42,694 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:24:42,695 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:24:42,728 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:24:42,729 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:24:42,778 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:24:42,779 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:24:42,832 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:24:42,833 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:24:42,898 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:24:42,899 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:24:43,019 INFO L142 QuantifierPusher]: treesize reduction 45, result has 59.1 percent of original size [2021-03-11 14:24:43,020 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:24:43,156 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 31 [2021-03-11 14:24:43,159 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:24:43,160 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:24:43,260 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:24:43,261 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:24:43,350 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:24:43,350 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [928292158] [2021-03-11 14:24:43,350 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:24:43,350 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:24:43,350 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [808445576] [2021-03-11 14:24:43,351 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:24:43,351 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:24:43,351 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:24:43,351 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:24:43,351 INFO L87 Difference]: Start difference. First operand 3112 states and 15521 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:24:43,772 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 41 [2021-03-11 14:24:43,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:24:43,805 INFO L93 Difference]: Finished difference Result 6061 states and 26918 transitions. [2021-03-11 14:24:43,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:24:43,808 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:24:43,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:24:43,821 INFO L225 Difference]: With dead ends: 6061 [2021-03-11 14:24:43,821 INFO L226 Difference]: Without dead ends: 6041 [2021-03-11 14:24:43,821 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 823.5ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:24:43,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6041 states. [2021-03-11 14:24:43,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6041 to 3135. [2021-03-11 14:24:43,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3135 states, 3134 states have (on average 4.97702616464582) internal successors, (15598), 3134 states have internal predecessors, (15598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:24:43,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3135 states to 3135 states and 15598 transitions. [2021-03-11 14:24:43,958 INFO L78 Accepts]: Start accepts. Automaton has 3135 states and 15598 transitions. Word has length 31 [2021-03-11 14:24:43,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:24:43,958 INFO L480 AbstractCegarLoop]: Abstraction has 3135 states and 15598 transitions. [2021-03-11 14:24:43,958 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:24:43,958 INFO L276 IsEmpty]: Start isEmpty. Operand 3135 states and 15598 transitions. [2021-03-11 14:24:43,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:24:43,963 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:24:43,963 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:24:43,963 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable585 [2021-03-11 14:24:43,963 INFO L428 AbstractCegarLoop]: === Iteration 587 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:24:43,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:24:43,964 INFO L82 PathProgramCache]: Analyzing trace with hash 1443999391, now seen corresponding path program 578 times [2021-03-11 14:24:43,964 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:24:43,964 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2115744412] [2021-03-11 14:24:43,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:24:43,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:24:43,976 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:24:43,977 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:24:43,978 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:24:43,979 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:24:43,992 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:24:43,993 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:24:44,016 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:24:44,017 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:24:44,050 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:24:44,051 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:24:44,095 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:24:44,096 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:24:44,149 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:24:44,150 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:24:44,213 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:24:44,214 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:24:44,334 INFO L142 QuantifierPusher]: treesize reduction 45, result has 59.1 percent of original size [2021-03-11 14:24:44,335 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:24:44,469 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 31 [2021-03-11 14:24:44,472 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:24:44,473 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:24:44,571 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:24:44,573 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:24:44,664 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:24:44,664 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2115744412] [2021-03-11 14:24:44,664 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:24:44,664 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:24:44,664 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1560435435] [2021-03-11 14:24:44,664 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:24:44,664 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:24:44,664 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:24:44,664 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:24:44,665 INFO L87 Difference]: Start difference. First operand 3135 states and 15598 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:24:45,036 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 39 [2021-03-11 14:24:45,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:24:45,075 INFO L93 Difference]: Finished difference Result 6058 states and 26906 transitions. [2021-03-11 14:24:45,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:24:45,078 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:24:45,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:24:45,091 INFO L225 Difference]: With dead ends: 6058 [2021-03-11 14:24:45,092 INFO L226 Difference]: Without dead ends: 6035 [2021-03-11 14:24:45,092 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 807.7ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:24:45,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6035 states. [2021-03-11 14:24:45,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6035 to 3129. [2021-03-11 14:24:45,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3129 states, 3128 states have (on average 4.9811381074168795) internal successors, (15581), 3128 states have internal predecessors, (15581), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:24:45,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3129 states to 3129 states and 15581 transitions. [2021-03-11 14:24:45,229 INFO L78 Accepts]: Start accepts. Automaton has 3129 states and 15581 transitions. Word has length 31 [2021-03-11 14:24:45,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:24:45,229 INFO L480 AbstractCegarLoop]: Abstraction has 3129 states and 15581 transitions. [2021-03-11 14:24:45,229 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:24:45,229 INFO L276 IsEmpty]: Start isEmpty. Operand 3129 states and 15581 transitions. [2021-03-11 14:24:45,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:24:45,234 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:24:45,234 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:24:45,234 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable586 [2021-03-11 14:24:45,234 INFO L428 AbstractCegarLoop]: === Iteration 588 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:24:45,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:24:45,235 INFO L82 PathProgramCache]: Analyzing trace with hash 1228192753, now seen corresponding path program 579 times [2021-03-11 14:24:45,235 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:24:45,235 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1801792937] [2021-03-11 14:24:45,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:24:45,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:24:45,247 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:24:45,248 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:24:45,249 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:24:45,250 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:24:45,263 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:24:45,264 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:24:45,286 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:24:45,287 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:24:45,319 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:24:45,320 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:24:45,363 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:24:45,364 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:24:45,416 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:24:45,417 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:24:45,482 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:24:45,483 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:24:45,605 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:24:45,607 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:24:45,697 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:24:45,698 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:24:45,799 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:24:45,801 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:24:45,890 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:24:45,890 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1801792937] [2021-03-11 14:24:45,890 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:24:45,890 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:24:45,890 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1011976246] [2021-03-11 14:24:45,890 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:24:45,891 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:24:45,891 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:24:45,891 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:24:45,891 INFO L87 Difference]: Start difference. First operand 3129 states and 15581 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:24:46,281 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 41 [2021-03-11 14:24:46,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:24:46,315 INFO L93 Difference]: Finished difference Result 6071 states and 26933 transitions. [2021-03-11 14:24:46,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:24:46,318 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:24:46,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:24:46,332 INFO L225 Difference]: With dead ends: 6071 [2021-03-11 14:24:46,332 INFO L226 Difference]: Without dead ends: 6051 [2021-03-11 14:24:46,333 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 775.8ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:24:46,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6051 states. [2021-03-11 14:24:46,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6051 to 3140. [2021-03-11 14:24:46,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3140 states, 3139 states have (on average 4.97005415737496) internal successors, (15601), 3139 states have internal predecessors, (15601), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:24:46,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3140 states to 3140 states and 15601 transitions. [2021-03-11 14:24:46,469 INFO L78 Accepts]: Start accepts. Automaton has 3140 states and 15601 transitions. Word has length 31 [2021-03-11 14:24:46,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:24:46,470 INFO L480 AbstractCegarLoop]: Abstraction has 3140 states and 15601 transitions. [2021-03-11 14:24:46,470 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:24:46,470 INFO L276 IsEmpty]: Start isEmpty. Operand 3140 states and 15601 transitions. [2021-03-11 14:24:46,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:24:46,474 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:24:46,474 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:24:46,474 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable587 [2021-03-11 14:24:46,474 INFO L428 AbstractCegarLoop]: === Iteration 589 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:24:46,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:24:46,475 INFO L82 PathProgramCache]: Analyzing trace with hash -1729207329, now seen corresponding path program 580 times [2021-03-11 14:24:46,475 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:24:46,475 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1250871000] [2021-03-11 14:24:46,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:24:46,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:24:46,487 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:24:46,488 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:24:46,489 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:24:46,490 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:24:46,503 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:24:46,504 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:24:46,526 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:24:46,527 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:24:46,559 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:24:46,560 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:24:46,602 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:24:46,604 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:24:46,657 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:24:46,658 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:24:46,722 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:24:46,723 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:24:46,843 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:24:46,844 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:24:46,934 INFO L142 QuantifierPusher]: treesize reduction 72, result has 49.7 percent of original size [2021-03-11 14:24:46,936 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-03-11 14:24:47,042 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:24:47,043 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:24:47,137 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:24:47,137 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1250871000] [2021-03-11 14:24:47,137 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:24:47,137 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:24:47,137 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1057643443] [2021-03-11 14:24:47,137 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:24:47,137 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:24:47,137 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:24:47,137 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:24:47,137 INFO L87 Difference]: Start difference. First operand 3140 states and 15601 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:24:47,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:24:47,522 INFO L93 Difference]: Finished difference Result 6073 states and 26927 transitions. [2021-03-11 14:24:47,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:24:47,525 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:24:47,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:24:47,538 INFO L225 Difference]: With dead ends: 6073 [2021-03-11 14:24:47,538 INFO L226 Difference]: Without dead ends: 6040 [2021-03-11 14:24:47,538 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 701.3ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:24:47,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6040 states. [2021-03-11 14:24:47,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6040 to 3129. [2021-03-11 14:24:47,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3129 states, 3128 states have (on average 4.978580562659847) internal successors, (15573), 3128 states have internal predecessors, (15573), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:24:47,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3129 states to 3129 states and 15573 transitions. [2021-03-11 14:24:47,674 INFO L78 Accepts]: Start accepts. Automaton has 3129 states and 15573 transitions. Word has length 31 [2021-03-11 14:24:47,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:24:47,674 INFO L480 AbstractCegarLoop]: Abstraction has 3129 states and 15573 transitions. [2021-03-11 14:24:47,674 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:24:47,674 INFO L276 IsEmpty]: Start isEmpty. Operand 3129 states and 15573 transitions. [2021-03-11 14:24:47,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:24:47,679 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:24:47,679 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:24:47,679 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable588 [2021-03-11 14:24:47,679 INFO L428 AbstractCegarLoop]: === Iteration 590 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:24:47,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:24:47,679 INFO L82 PathProgramCache]: Analyzing trace with hash -41089935, now seen corresponding path program 581 times [2021-03-11 14:24:47,679 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:24:47,679 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2021284202] [2021-03-11 14:24:47,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:24:47,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:24:47,691 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:24:47,692 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:24:47,693 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:24:47,694 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:24:47,707 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:24:47,708 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:24:47,730 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:24:47,731 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:24:47,766 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:24:47,768 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:24:47,811 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:24:47,812 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:24:47,868 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:24:47,869 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:24:47,933 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:24:47,935 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:24:48,056 INFO L142 QuantifierPusher]: treesize reduction 54, result has 55.4 percent of original size [2021-03-11 14:24:48,057 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-03-11 14:24:48,198 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 32 [2021-03-11 14:24:48,201 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:24:48,202 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:24:48,300 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:24:48,302 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:24:48,392 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:24:48,392 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2021284202] [2021-03-11 14:24:48,392 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:24:48,392 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:24:48,392 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [873475360] [2021-03-11 14:24:48,392 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:24:48,392 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:24:48,392 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:24:48,393 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:24:48,393 INFO L87 Difference]: Start difference. First operand 3129 states and 15573 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:24:48,767 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 39 [2021-03-11 14:24:48,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:24:48,801 INFO L93 Difference]: Finished difference Result 6061 states and 26903 transitions. [2021-03-11 14:24:48,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:24:48,804 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:24:48,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:24:48,818 INFO L225 Difference]: With dead ends: 6061 [2021-03-11 14:24:48,818 INFO L226 Difference]: Without dead ends: 6044 [2021-03-11 14:24:48,818 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 819.2ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:24:48,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6044 states. [2021-03-11 14:24:48,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6044 to 3136. [2021-03-11 14:24:48,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3136 states, 3135 states have (on average 4.971610845295056) internal successors, (15586), 3135 states have internal predecessors, (15586), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:24:48,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3136 states to 3136 states and 15586 transitions. [2021-03-11 14:24:48,953 INFO L78 Accepts]: Start accepts. Automaton has 3136 states and 15586 transitions. Word has length 31 [2021-03-11 14:24:48,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:24:48,953 INFO L480 AbstractCegarLoop]: Abstraction has 3136 states and 15586 transitions. [2021-03-11 14:24:48,953 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:24:48,953 INFO L276 IsEmpty]: Start isEmpty. Operand 3136 states and 15586 transitions. [2021-03-11 14:24:48,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:24:48,958 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:24:48,958 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:24:48,958 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable589 [2021-03-11 14:24:48,958 INFO L428 AbstractCegarLoop]: === Iteration 591 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:24:48,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:24:48,958 INFO L82 PathProgramCache]: Analyzing trace with hash 2141448731, now seen corresponding path program 582 times [2021-03-11 14:24:48,958 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:24:48,958 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [290327409] [2021-03-11 14:24:48,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:24:48,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:24:48,970 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:24:48,971 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:24:48,972 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:24:48,973 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:24:48,987 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:24:48,988 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:24:49,010 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:24:49,011 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:24:49,044 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:24:49,045 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:24:49,088 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:24:49,089 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:24:49,143 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:24:49,144 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:24:49,211 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:24:49,212 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:24:49,335 INFO L142 QuantifierPusher]: treesize reduction 54, result has 55.4 percent of original size [2021-03-11 14:24:49,337 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-03-11 14:24:49,481 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 32 [2021-03-11 14:24:49,484 INFO L142 QuantifierPusher]: treesize reduction 72, result has 49.7 percent of original size [2021-03-11 14:24:49,485 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-03-11 14:24:49,590 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:24:49,591 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:24:49,685 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:24:49,685 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [290327409] [2021-03-11 14:24:49,685 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:24:49,685 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:24:49,685 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1155218457] [2021-03-11 14:24:49,685 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:24:49,685 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:24:49,685 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:24:49,686 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:24:49,686 INFO L87 Difference]: Start difference. First operand 3136 states and 15586 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:24:50,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:24:50,031 INFO L93 Difference]: Finished difference Result 6066 states and 26906 transitions. [2021-03-11 14:24:50,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:24:50,034 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:24:50,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:24:50,047 INFO L225 Difference]: With dead ends: 6066 [2021-03-11 14:24:50,047 INFO L226 Difference]: Without dead ends: 6029 [2021-03-11 14:24:50,048 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 768.8ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:24:50,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6029 states. [2021-03-11 14:24:50,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6029 to 3121. [2021-03-11 14:24:50,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3121 states, 3120 states have (on average 4.984294871794872) internal successors, (15551), 3120 states have internal predecessors, (15551), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:24:50,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3121 states to 3121 states and 15551 transitions. [2021-03-11 14:24:50,183 INFO L78 Accepts]: Start accepts. Automaton has 3121 states and 15551 transitions. Word has length 31 [2021-03-11 14:24:50,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:24:50,183 INFO L480 AbstractCegarLoop]: Abstraction has 3121 states and 15551 transitions. [2021-03-11 14:24:50,183 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:24:50,183 INFO L276 IsEmpty]: Start isEmpty. Operand 3121 states and 15551 transitions. [2021-03-11 14:24:50,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:24:50,188 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:24:50,188 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:24:50,188 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable590 [2021-03-11 14:24:50,188 INFO L428 AbstractCegarLoop]: === Iteration 592 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:24:50,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:24:50,188 INFO L82 PathProgramCache]: Analyzing trace with hash 7113981, now seen corresponding path program 583 times [2021-03-11 14:24:50,189 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:24:50,189 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [562843036] [2021-03-11 14:24:50,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:24:50,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:24:50,200 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:24:50,202 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:24:50,203 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:24:50,204 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:24:50,217 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:24:50,218 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:24:50,241 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:24:50,242 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:24:50,275 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:24:50,276 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:24:50,320 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:24:50,321 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:24:50,377 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:24:50,378 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:24:50,446 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:24:50,447 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:24:50,524 INFO L142 QuantifierPusher]: treesize reduction 45, result has 59.1 percent of original size [2021-03-11 14:24:50,525 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:24:50,666 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 31 [2021-03-11 14:24:50,669 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:24:50,670 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:24:50,774 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:24:50,776 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:24:50,869 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:24:50,869 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [562843036] [2021-03-11 14:24:50,869 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:24:50,869 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:24:50,869 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1102684897] [2021-03-11 14:24:50,869 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:24:50,869 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:24:50,870 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:24:50,870 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:24:50,870 INFO L87 Difference]: Start difference. First operand 3121 states and 15551 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:24:51,267 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 41 [2021-03-11 14:24:51,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:24:51,299 INFO L93 Difference]: Finished difference Result 6052 states and 26892 transitions. [2021-03-11 14:24:51,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:24:51,302 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:24:51,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:24:51,315 INFO L225 Difference]: With dead ends: 6052 [2021-03-11 14:24:51,315 INFO L226 Difference]: Without dead ends: 6032 [2021-03-11 14:24:51,315 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 798.5ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:24:51,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6032 states. [2021-03-11 14:24:51,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6032 to 3133. [2021-03-11 14:24:51,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3133 states, 3132 states have (on average 4.976053639846743) internal successors, (15585), 3132 states have internal predecessors, (15585), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:24:51,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3133 states to 3133 states and 15585 transitions. [2021-03-11 14:24:51,451 INFO L78 Accepts]: Start accepts. Automaton has 3133 states and 15585 transitions. Word has length 31 [2021-03-11 14:24:51,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:24:51,451 INFO L480 AbstractCegarLoop]: Abstraction has 3133 states and 15585 transitions. [2021-03-11 14:24:51,451 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:24:51,451 INFO L276 IsEmpty]: Start isEmpty. Operand 3133 states and 15585 transitions. [2021-03-11 14:24:51,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:24:51,456 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:24:51,456 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:24:51,456 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable591 [2021-03-11 14:24:51,456 INFO L428 AbstractCegarLoop]: === Iteration 593 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:24:51,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:24:51,456 INFO L82 PathProgramCache]: Analyzing trace with hash -837857471, now seen corresponding path program 584 times [2021-03-11 14:24:51,456 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:24:51,456 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1338810918] [2021-03-11 14:24:51,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:24:51,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:24:51,468 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:24:51,469 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:24:51,471 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:24:51,471 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:24:51,485 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:24:51,486 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:24:51,508 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:24:51,509 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:24:51,542 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:24:51,544 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:24:51,587 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:24:51,588 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:24:51,641 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:24:51,642 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:24:51,708 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:24:51,709 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:24:51,785 INFO L142 QuantifierPusher]: treesize reduction 45, result has 59.1 percent of original size [2021-03-11 14:24:51,786 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:24:51,924 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 31 [2021-03-11 14:24:51,927 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:24:51,928 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:24:52,028 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:24:52,029 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:24:52,122 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:24:52,122 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1338810918] [2021-03-11 14:24:52,122 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:24:52,123 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:24:52,123 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360917122] [2021-03-11 14:24:52,123 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:24:52,123 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:24:52,123 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:24:52,123 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:24:52,123 INFO L87 Difference]: Start difference. First operand 3133 states and 15585 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:24:52,552 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 39 [2021-03-11 14:24:52,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:24:52,595 INFO L93 Difference]: Finished difference Result 6049 states and 26880 transitions. [2021-03-11 14:24:52,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:24:52,598 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:24:52,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:24:52,611 INFO L225 Difference]: With dead ends: 6049 [2021-03-11 14:24:52,612 INFO L226 Difference]: Without dead ends: 6026 [2021-03-11 14:24:52,612 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 789.8ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:24:52,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6026 states. [2021-03-11 14:24:52,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6026 to 3127. [2021-03-11 14:24:52,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3127 states, 3126 states have (on average 4.980166346769034) internal successors, (15568), 3126 states have internal predecessors, (15568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:24:52,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3127 states to 3127 states and 15568 transitions. [2021-03-11 14:24:52,782 INFO L78 Accepts]: Start accepts. Automaton has 3127 states and 15568 transitions. Word has length 31 [2021-03-11 14:24:52,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:24:52,782 INFO L480 AbstractCegarLoop]: Abstraction has 3127 states and 15568 transitions. [2021-03-11 14:24:52,782 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:24:52,782 INFO L276 IsEmpty]: Start isEmpty. Operand 3127 states and 15568 transitions. [2021-03-11 14:24:52,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:24:52,787 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:24:52,787 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:24:52,787 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable592 [2021-03-11 14:24:52,787 INFO L428 AbstractCegarLoop]: === Iteration 594 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:24:52,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:24:52,788 INFO L82 PathProgramCache]: Analyzing trace with hash -1265819727, now seen corresponding path program 585 times [2021-03-11 14:24:52,788 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:24:52,788 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [269160686] [2021-03-11 14:24:52,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:24:52,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:24:52,800 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:24:52,801 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:24:52,802 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:24:52,803 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:24:52,819 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:24:52,820 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:24:52,845 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:24:52,846 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:24:52,883 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:24:52,884 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:24:52,932 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:24:52,933 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:24:52,992 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:24:52,993 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:24:53,066 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:24:53,067 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:24:53,151 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:24:53,152 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:24:53,251 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:24:53,253 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:24:53,366 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:24:53,367 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:24:53,468 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:24:53,468 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [269160686] [2021-03-11 14:24:53,468 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:24:53,468 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:24:53,468 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1915778867] [2021-03-11 14:24:53,468 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:24:53,468 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:24:53,468 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:24:53,468 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:24:53,468 INFO L87 Difference]: Start difference. First operand 3127 states and 15568 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:24:53,965 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 41 [2021-03-11 14:24:53,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:24:54,000 INFO L93 Difference]: Finished difference Result 6056 states and 26896 transitions. [2021-03-11 14:24:54,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:24:54,003 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:24:54,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:24:54,017 INFO L225 Difference]: With dead ends: 6056 [2021-03-11 14:24:54,017 INFO L226 Difference]: Without dead ends: 6036 [2021-03-11 14:24:54,017 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 806.5ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:24:54,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6036 states. [2021-03-11 14:24:54,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6036 to 3135. [2021-03-11 14:24:54,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3135 states, 3134 states have (on average 4.972239948947032) internal successors, (15583), 3134 states have internal predecessors, (15583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:24:54,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3135 states to 3135 states and 15583 transitions. [2021-03-11 14:24:54,160 INFO L78 Accepts]: Start accepts. Automaton has 3135 states and 15583 transitions. Word has length 31 [2021-03-11 14:24:54,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:24:54,160 INFO L480 AbstractCegarLoop]: Abstraction has 3135 states and 15583 transitions. [2021-03-11 14:24:54,160 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:24:54,160 INFO L276 IsEmpty]: Start isEmpty. Operand 3135 states and 15583 transitions. [2021-03-11 14:24:54,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:24:54,165 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:24:54,165 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:24:54,165 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable593 [2021-03-11 14:24:54,165 INFO L428 AbstractCegarLoop]: === Iteration 595 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:24:54,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:24:54,166 INFO L82 PathProgramCache]: Analyzing trace with hash -350738239, now seen corresponding path program 586 times [2021-03-11 14:24:54,166 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:24:54,166 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [221594477] [2021-03-11 14:24:54,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:24:54,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:24:54,178 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:24:54,179 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:24:54,180 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:24:54,181 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:24:54,196 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:24:54,197 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:24:54,221 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:24:54,223 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:24:54,259 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:24:54,260 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:24:54,308 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:24:54,310 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:24:54,366 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:24:54,367 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:24:54,437 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:24:54,438 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:24:54,511 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:24:54,512 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:24:54,600 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:24:54,602 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:24:54,702 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:24:54,703 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:24:54,792 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:24:54,792 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [221594477] [2021-03-11 14:24:54,793 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:24:54,793 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:24:54,793 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1691442339] [2021-03-11 14:24:54,793 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:24:54,793 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:24:54,793 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:24:54,793 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:24:54,793 INFO L87 Difference]: Start difference. First operand 3135 states and 15583 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:24:55,184 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 41 [2021-03-11 14:24:55,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:24:55,224 INFO L93 Difference]: Finished difference Result 6055 states and 26886 transitions. [2021-03-11 14:24:55,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:24:55,227 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:24:55,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:24:55,240 INFO L225 Difference]: With dead ends: 6055 [2021-03-11 14:24:55,241 INFO L226 Difference]: Without dead ends: 6028 [2021-03-11 14:24:55,241 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 738.9ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:24:55,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6028 states. [2021-03-11 14:24:55,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6028 to 3127. [2021-03-11 14:24:55,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3127 states, 3126 states have (on average 4.978246960972489) internal successors, (15562), 3126 states have internal predecessors, (15562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:24:55,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3127 states to 3127 states and 15562 transitions. [2021-03-11 14:24:55,376 INFO L78 Accepts]: Start accepts. Automaton has 3127 states and 15562 transitions. Word has length 31 [2021-03-11 14:24:55,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:24:55,376 INFO L480 AbstractCegarLoop]: Abstraction has 3127 states and 15562 transitions. [2021-03-11 14:24:55,376 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:24:55,376 INFO L276 IsEmpty]: Start isEmpty. Operand 3127 states and 15562 transitions. [2021-03-11 14:24:55,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:24:55,381 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:24:55,381 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:24:55,381 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable594 [2021-03-11 14:24:55,381 INFO L428 AbstractCegarLoop]: === Iteration 596 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:24:55,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:24:55,381 INFO L82 PathProgramCache]: Analyzing trace with hash 1759864881, now seen corresponding path program 587 times [2021-03-11 14:24:55,381 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:24:55,381 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [968994976] [2021-03-11 14:24:55,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:24:55,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:24:55,393 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:24:55,394 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:24:55,395 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:24:55,396 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:24:55,409 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:24:55,410 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:24:55,433 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:24:55,434 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:24:55,468 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:24:55,469 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:24:55,514 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:24:55,515 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:24:55,569 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:24:55,570 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:24:55,634 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:24:55,635 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:24:55,709 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:24:55,710 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:24:55,795 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:24:55,796 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:24:55,894 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:24:55,895 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:24:55,985 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:24:55,985 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [968994976] [2021-03-11 14:24:55,985 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:24:55,985 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:24:55,985 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1908824853] [2021-03-11 14:24:55,985 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:24:55,985 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:24:55,985 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:24:55,985 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:24:55,985 INFO L87 Difference]: Start difference. First operand 3127 states and 15562 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:24:56,397 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 39 [2021-03-11 14:24:56,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:24:56,430 INFO L93 Difference]: Finished difference Result 6048 states and 26872 transitions. [2021-03-11 14:24:56,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:24:56,433 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:24:56,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:24:56,446 INFO L225 Difference]: With dead ends: 6048 [2021-03-11 14:24:56,447 INFO L226 Difference]: Without dead ends: 6031 [2021-03-11 14:24:56,447 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 708.6ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:24:56,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6031 states. [2021-03-11 14:24:56,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6031 to 3133. [2021-03-11 14:24:56,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3133 states, 3132 states have (on average 4.972222222222222) internal successors, (15573), 3132 states have internal predecessors, (15573), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:24:56,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3133 states to 3133 states and 15573 transitions. [2021-03-11 14:24:56,581 INFO L78 Accepts]: Start accepts. Automaton has 3133 states and 15573 transitions. Word has length 31 [2021-03-11 14:24:56,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:24:56,581 INFO L480 AbstractCegarLoop]: Abstraction has 3133 states and 15573 transitions. [2021-03-11 14:24:56,581 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:24:56,581 INFO L276 IsEmpty]: Start isEmpty. Operand 3133 states and 15573 transitions. [2021-03-11 14:24:56,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:24:56,586 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:24:56,586 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:24:56,586 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable595 [2021-03-11 14:24:56,586 INFO L428 AbstractCegarLoop]: === Iteration 597 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:24:56,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:24:56,586 INFO L82 PathProgramCache]: Analyzing trace with hash -775049475, now seen corresponding path program 588 times [2021-03-11 14:24:56,586 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:24:56,586 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1918964053] [2021-03-11 14:24:56,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:24:56,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:24:56,598 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:24:56,599 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:24:56,600 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:24:56,601 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:24:56,614 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:24:56,615 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:24:56,637 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:24:56,638 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:24:56,670 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:24:56,672 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:24:56,714 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:24:56,715 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:24:56,768 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:24:56,769 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:24:56,832 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:24:56,834 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:24:56,907 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:24:56,908 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:24:56,993 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:24:56,994 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:24:57,096 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:24:57,097 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:24:57,187 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:24:57,187 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1918964053] [2021-03-11 14:24:57,187 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:24:57,187 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:24:57,187 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1649214297] [2021-03-11 14:24:57,187 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:24:57,187 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:24:57,187 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:24:57,187 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:24:57,187 INFO L87 Difference]: Start difference. First operand 3133 states and 15573 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:24:57,802 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 41 [2021-03-11 14:24:57,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:24:57,845 INFO L93 Difference]: Finished difference Result 6050 states and 26870 transitions. [2021-03-11 14:24:57,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:24:57,848 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:24:57,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:24:57,861 INFO L225 Difference]: With dead ends: 6050 [2021-03-11 14:24:57,861 INFO L226 Difference]: Without dead ends: 6019 [2021-03-11 14:24:57,862 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 715.8ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:24:57,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6019 states. [2021-03-11 14:24:57,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6019 to 3121. [2021-03-11 14:24:57,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3121 states, 3120 states have (on average 4.982371794871795) internal successors, (15545), 3120 states have internal predecessors, (15545), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:24:57,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3121 states to 3121 states and 15545 transitions. [2021-03-11 14:24:57,996 INFO L78 Accepts]: Start accepts. Automaton has 3121 states and 15545 transitions. Word has length 31 [2021-03-11 14:24:57,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:24:57,996 INFO L480 AbstractCegarLoop]: Abstraction has 3121 states and 15545 transitions. [2021-03-11 14:24:57,996 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:24:57,997 INFO L276 IsEmpty]: Start isEmpty. Operand 3121 states and 15545 transitions. [2021-03-11 14:24:58,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:24:58,001 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:24:58,001 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:24:58,001 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable596 [2021-03-11 14:24:58,001 INFO L428 AbstractCegarLoop]: === Iteration 598 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:24:58,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:24:58,002 INFO L82 PathProgramCache]: Analyzing trace with hash 421953469, now seen corresponding path program 589 times [2021-03-11 14:24:58,002 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:24:58,002 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [759782521] [2021-03-11 14:24:58,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:24:58,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:24:58,013 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:24:58,014 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:24:58,015 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:24:58,016 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:24:58,030 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:24:58,031 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:24:58,053 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:24:58,054 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:24:58,087 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:24:58,088 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:24:58,131 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:24:58,132 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:24:58,186 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:24:58,187 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:24:58,250 INFO L142 QuantifierPusher]: treesize reduction 54, result has 50.5 percent of original size [2021-03-11 14:24:58,251 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-11 14:24:58,329 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:24:58,330 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:24:58,420 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:24:58,421 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:24:58,526 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:24:58,527 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:24:58,618 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:24:58,618 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [759782521] [2021-03-11 14:24:58,618 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:24:58,618 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:24:58,618 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360385799] [2021-03-11 14:24:58,618 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:24:58,618 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:24:58,618 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:24:58,618 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:24:58,618 INFO L87 Difference]: Start difference. First operand 3121 states and 15545 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:24:59,134 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 41 [2021-03-11 14:24:59,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:24:59,167 INFO L93 Difference]: Finished difference Result 6080 states and 26950 transitions. [2021-03-11 14:24:59,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:24:59,170 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:24:59,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:24:59,183 INFO L225 Difference]: With dead ends: 6080 [2021-03-11 14:24:59,183 INFO L226 Difference]: Without dead ends: 6060 [2021-03-11 14:24:59,183 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 733.0ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:24:59,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6060 states. [2021-03-11 14:24:59,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6060 to 3143. [2021-03-11 14:24:59,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3143 states, 3142 states have (on average 4.965626989178867) internal successors, (15602), 3142 states have internal predecessors, (15602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:24:59,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3143 states to 3143 states and 15602 transitions. [2021-03-11 14:24:59,333 INFO L78 Accepts]: Start accepts. Automaton has 3143 states and 15602 transitions. Word has length 31 [2021-03-11 14:24:59,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:24:59,333 INFO L480 AbstractCegarLoop]: Abstraction has 3143 states and 15602 transitions. [2021-03-11 14:24:59,333 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:24:59,333 INFO L276 IsEmpty]: Start isEmpty. Operand 3143 states and 15602 transitions. [2021-03-11 14:24:59,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:24:59,338 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:24:59,338 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:24:59,338 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable597 [2021-03-11 14:24:59,338 INFO L428 AbstractCegarLoop]: === Iteration 599 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:24:59,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:24:59,338 INFO L82 PathProgramCache]: Analyzing trace with hash 1759520683, now seen corresponding path program 590 times [2021-03-11 14:24:59,338 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:24:59,338 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [427559270] [2021-03-11 14:24:59,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:24:59,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:24:59,350 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:24:59,351 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:24:59,352 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:24:59,353 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:24:59,366 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:24:59,367 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:24:59,390 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:24:59,392 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:24:59,425 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:24:59,426 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:24:59,469 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:24:59,470 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:24:59,523 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:24:59,524 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:24:59,591 INFO L142 QuantifierPusher]: treesize reduction 54, result has 50.5 percent of original size [2021-03-11 14:24:59,593 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-11 14:24:59,673 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:24:59,675 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:24:59,767 INFO L142 QuantifierPusher]: treesize reduction 72, result has 49.7 percent of original size [2021-03-11 14:24:59,768 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-03-11 14:24:59,872 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:24:59,873 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:24:59,966 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:24:59,966 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [427559270] [2021-03-11 14:24:59,966 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:24:59,966 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:24:59,966 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [390260809] [2021-03-11 14:24:59,966 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:24:59,966 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:24:59,966 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:24:59,966 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:24:59,966 INFO L87 Difference]: Start difference. First operand 3143 states and 15602 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:25:00,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:25:00,500 INFO L93 Difference]: Finished difference Result 6082 states and 26944 transitions. [2021-03-11 14:25:00,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:25:00,503 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:25:00,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:25:00,516 INFO L225 Difference]: With dead ends: 6082 [2021-03-11 14:25:00,516 INFO L226 Difference]: Without dead ends: 6049 [2021-03-11 14:25:00,517 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 669.3ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:25:00,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6049 states. [2021-03-11 14:25:00,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6049 to 3132. [2021-03-11 14:25:00,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3132 states, 3131 states have (on average 4.973490897476845) internal successors, (15572), 3131 states have internal predecessors, (15572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:25:00,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3132 states to 3132 states and 15572 transitions. [2021-03-11 14:25:00,654 INFO L78 Accepts]: Start accepts. Automaton has 3132 states and 15572 transitions. Word has length 31 [2021-03-11 14:25:00,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:25:00,654 INFO L480 AbstractCegarLoop]: Abstraction has 3132 states and 15572 transitions. [2021-03-11 14:25:00,654 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:25:00,654 INFO L276 IsEmpty]: Start isEmpty. Operand 3132 states and 15572 transitions. [2021-03-11 14:25:00,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:25:00,659 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:25:00,659 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:25:00,660 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable598 [2021-03-11 14:25:00,660 INFO L428 AbstractCegarLoop]: === Iteration 600 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:25:00,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:25:00,660 INFO L82 PathProgramCache]: Analyzing trace with hash 209797851, now seen corresponding path program 591 times [2021-03-11 14:25:00,660 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:25:00,660 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1898304569] [2021-03-11 14:25:00,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:25:00,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:25:00,672 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:25:00,673 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:25:00,674 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:25:00,675 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:25:00,689 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:25:00,690 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:25:00,713 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:25:00,714 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:25:00,747 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:25:00,748 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:25:00,792 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:25:00,793 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:25:00,848 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:25:00,849 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:25:00,917 INFO L142 QuantifierPusher]: treesize reduction 54, result has 50.5 percent of original size [2021-03-11 14:25:00,918 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-11 14:25:01,001 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:25:01,002 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:25:01,103 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:25:01,104 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:25:01,216 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:25:01,218 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:25:01,329 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:25:01,329 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1898304569] [2021-03-11 14:25:01,329 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:25:01,329 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:25:01,329 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1803606868] [2021-03-11 14:25:01,330 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:25:01,330 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:25:01,330 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:25:01,330 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:25:01,330 INFO L87 Difference]: Start difference. First operand 3132 states and 15572 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:25:01,840 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 41 [2021-03-11 14:25:01,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:25:01,875 INFO L93 Difference]: Finished difference Result 6074 states and 26929 transitions. [2021-03-11 14:25:01,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:25:01,878 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:25:01,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:25:01,892 INFO L225 Difference]: With dead ends: 6074 [2021-03-11 14:25:01,892 INFO L226 Difference]: Without dead ends: 6054 [2021-03-11 14:25:01,892 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 813.7ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:25:01,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6054 states. [2021-03-11 14:25:02,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6054 to 3140. [2021-03-11 14:25:02,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3140 states, 3139 states have (on average 4.965594138260593) internal successors, (15587), 3139 states have internal predecessors, (15587), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:25:02,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3140 states to 3140 states and 15587 transitions. [2021-03-11 14:25:02,033 INFO L78 Accepts]: Start accepts. Automaton has 3140 states and 15587 transitions. Word has length 31 [2021-03-11 14:25:02,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:25:02,033 INFO L480 AbstractCegarLoop]: Abstraction has 3140 states and 15587 transitions. [2021-03-11 14:25:02,033 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:25:02,033 INFO L276 IsEmpty]: Start isEmpty. Operand 3140 states and 15587 transitions. [2021-03-11 14:25:02,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:25:02,038 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:25:02,038 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:25:02,038 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable599 [2021-03-11 14:25:02,038 INFO L428 AbstractCegarLoop]: === Iteration 601 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:25:02,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:25:02,038 INFO L82 PathProgramCache]: Analyzing trace with hash 1124879339, now seen corresponding path program 592 times [2021-03-11 14:25:02,039 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:25:02,039 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1518173561] [2021-03-11 14:25:02,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:25:02,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:25:02,051 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:25:02,052 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:25:02,053 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:25:02,054 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:25:02,069 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:25:02,070 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:25:02,094 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:25:02,095 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:25:02,131 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:25:02,132 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:25:02,179 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:25:02,181 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:25:02,237 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:25:02,238 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:25:02,309 INFO L142 QuantifierPusher]: treesize reduction 54, result has 50.5 percent of original size [2021-03-11 14:25:02,310 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-11 14:25:02,395 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:25:02,396 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:25:02,487 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:25:02,488 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:25:02,591 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:25:02,593 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:25:02,687 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:25:02,688 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1518173561] [2021-03-11 14:25:02,688 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:25:02,688 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:25:02,688 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1608233774] [2021-03-11 14:25:02,688 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:25:02,688 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:25:02,688 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:25:02,688 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:25:02,688 INFO L87 Difference]: Start difference. First operand 3140 states and 15587 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:25:03,100 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 41 [2021-03-11 14:25:03,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:25:03,146 INFO L93 Difference]: Finished difference Result 6073 states and 26919 transitions. [2021-03-11 14:25:03,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:25:03,149 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:25:03,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:25:03,162 INFO L225 Difference]: With dead ends: 6073 [2021-03-11 14:25:03,163 INFO L226 Difference]: Without dead ends: 6046 [2021-03-11 14:25:03,163 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 768.5ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:25:03,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6046 states. [2021-03-11 14:25:03,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6046 to 3132. [2021-03-11 14:25:03,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3132 states, 3131 states have (on average 4.9709358032577455) internal successors, (15564), 3131 states have internal predecessors, (15564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:25:03,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3132 states to 3132 states and 15564 transitions. [2021-03-11 14:25:03,302 INFO L78 Accepts]: Start accepts. Automaton has 3132 states and 15564 transitions. Word has length 31 [2021-03-11 14:25:03,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:25:03,302 INFO L480 AbstractCegarLoop]: Abstraction has 3132 states and 15564 transitions. [2021-03-11 14:25:03,302 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:25:03,302 INFO L276 IsEmpty]: Start isEmpty. Operand 3132 states and 15564 transitions. [2021-03-11 14:25:03,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:25:03,307 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:25:03,307 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:25:03,307 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable600 [2021-03-11 14:25:03,307 INFO L428 AbstractCegarLoop]: === Iteration 602 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:25:03,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:25:03,307 INFO L82 PathProgramCache]: Analyzing trace with hash 62275739, now seen corresponding path program 593 times [2021-03-11 14:25:03,308 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:25:03,308 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [333651063] [2021-03-11 14:25:03,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:25:03,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:25:03,319 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:25:03,320 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:25:03,321 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:25:03,322 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:25:03,336 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:25:03,337 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:25:03,361 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:25:03,362 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:25:03,398 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:25:03,399 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:25:03,448 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:25:03,449 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:25:03,504 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:25:03,505 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:25:03,577 INFO L142 QuantifierPusher]: treesize reduction 54, result has 50.5 percent of original size [2021-03-11 14:25:03,578 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-11 14:25:03,662 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:25:03,664 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:25:03,759 INFO L142 QuantifierPusher]: treesize reduction 72, result has 49.7 percent of original size [2021-03-11 14:25:03,760 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-03-11 14:25:03,874 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:25:03,875 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:25:03,973 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:25:03,974 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [333651063] [2021-03-11 14:25:03,974 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:25:03,974 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:25:03,974 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2111263935] [2021-03-11 14:25:03,974 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:25:03,974 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:25:03,974 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:25:03,974 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:25:03,974 INFO L87 Difference]: Start difference. First operand 3132 states and 15564 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:25:04,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:25:04,369 INFO L93 Difference]: Finished difference Result 6079 states and 26929 transitions. [2021-03-11 14:25:04,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:25:04,372 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:25:04,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:25:04,386 INFO L225 Difference]: With dead ends: 6079 [2021-03-11 14:25:04,387 INFO L226 Difference]: Without dead ends: 6057 [2021-03-11 14:25:04,387 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 723.9ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:25:04,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6057 states. [2021-03-11 14:25:04,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6057 to 3141. [2021-03-11 14:25:04,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3141 states, 3140 states have (on average 4.961783439490445) internal successors, (15580), 3140 states have internal predecessors, (15580), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:25:04,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3141 states to 3141 states and 15580 transitions. [2021-03-11 14:25:04,525 INFO L78 Accepts]: Start accepts. Automaton has 3141 states and 15580 transitions. Word has length 31 [2021-03-11 14:25:04,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:25:04,525 INFO L480 AbstractCegarLoop]: Abstraction has 3141 states and 15580 transitions. [2021-03-11 14:25:04,525 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:25:04,525 INFO L276 IsEmpty]: Start isEmpty. Operand 3141 states and 15580 transitions. [2021-03-11 14:25:04,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:25:04,530 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:25:04,530 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:25:04,530 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable601 [2021-03-11 14:25:04,530 INFO L428 AbstractCegarLoop]: === Iteration 603 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:25:04,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:25:04,530 INFO L82 PathProgramCache]: Analyzing trace with hash -360209987, now seen corresponding path program 594 times [2021-03-11 14:25:04,530 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:25:04,530 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1528141049] [2021-03-11 14:25:04,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:25:04,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:25:04,542 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:25:04,543 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:25:04,544 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:25:04,546 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:25:04,560 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:25:04,561 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:25:04,587 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:25:04,588 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:25:04,629 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:25:04,631 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:25:04,680 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:25:04,681 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:25:04,736 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:25:04,737 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:25:04,805 INFO L142 QuantifierPusher]: treesize reduction 54, result has 50.5 percent of original size [2021-03-11 14:25:04,806 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-11 14:25:04,887 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:25:04,888 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:25:04,981 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:25:04,982 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:25:05,089 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:25:05,091 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:25:05,190 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:25:05,190 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1528141049] [2021-03-11 14:25:05,190 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:25:05,190 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:25:05,190 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [201264008] [2021-03-11 14:25:05,190 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:25:05,191 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:25:05,191 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:25:05,191 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:25:05,191 INFO L87 Difference]: Start difference. First operand 3141 states and 15580 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:25:05,647 WARN L205 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 40 [2021-03-11 14:25:05,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:25:05,704 INFO L93 Difference]: Finished difference Result 6076 states and 26915 transitions. [2021-03-11 14:25:05,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:25:05,707 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:25:05,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:25:05,720 INFO L225 Difference]: With dead ends: 6076 [2021-03-11 14:25:05,720 INFO L226 Difference]: Without dead ends: 6037 [2021-03-11 14:25:05,720 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 799.2ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:25:05,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6037 states. [2021-03-11 14:25:05,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6037 to 3121. [2021-03-11 14:25:05,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3121 states, 3120 states have (on average 4.97948717948718) internal successors, (15536), 3120 states have internal predecessors, (15536), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:25:05,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3121 states to 3121 states and 15536 transitions. [2021-03-11 14:25:05,857 INFO L78 Accepts]: Start accepts. Automaton has 3121 states and 15536 transitions. Word has length 31 [2021-03-11 14:25:05,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:25:05,857 INFO L480 AbstractCegarLoop]: Abstraction has 3121 states and 15536 transitions. [2021-03-11 14:25:05,857 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:25:05,857 INFO L276 IsEmpty]: Start isEmpty. Operand 3121 states and 15536 transitions. [2021-03-11 14:25:05,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:25:05,862 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:25:05,862 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:25:05,862 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable602 [2021-03-11 14:25:05,862 INFO L428 AbstractCegarLoop]: === Iteration 604 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:25:05,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:25:05,862 INFO L82 PathProgramCache]: Analyzing trace with hash -1116075647, now seen corresponding path program 595 times [2021-03-11 14:25:05,862 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:25:05,862 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [561261462] [2021-03-11 14:25:05,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:25:05,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:25:05,874 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:25:05,875 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:25:05,876 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:25:05,877 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:25:05,892 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:25:05,893 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:25:05,916 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:25:05,917 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:25:05,952 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:25:05,953 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:25:05,999 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:25:06,001 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:25:06,061 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:25:06,063 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:25:06,130 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:25:06,132 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:25:06,209 INFO L142 QuantifierPusher]: treesize reduction 54, result has 55.4 percent of original size [2021-03-11 14:25:06,210 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-03-11 14:25:06,360 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 32 [2021-03-11 14:25:06,363 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:25:06,364 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:25:06,469 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:25:06,470 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:25:06,563 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:25:06,563 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [561261462] [2021-03-11 14:25:06,563 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:25:06,563 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:25:06,564 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [180057010] [2021-03-11 14:25:06,564 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:25:06,564 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:25:06,564 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:25:06,564 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:25:06,564 INFO L87 Difference]: Start difference. First operand 3121 states and 15536 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:25:06,963 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 38 [2021-03-11 14:25:07,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:25:07,002 INFO L93 Difference]: Finished difference Result 6057 states and 26886 transitions. [2021-03-11 14:25:07,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:25:07,005 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:25:07,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:25:07,018 INFO L225 Difference]: With dead ends: 6057 [2021-03-11 14:25:07,019 INFO L226 Difference]: Without dead ends: 6040 [2021-03-11 14:25:07,019 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 817.9ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:25:07,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6040 states. [2021-03-11 14:25:07,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6040 to 3135. [2021-03-11 14:25:07,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3135 states, 3134 states have (on average 4.969687300574346) internal successors, (15575), 3134 states have internal predecessors, (15575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:25:07,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3135 states to 3135 states and 15575 transitions. [2021-03-11 14:25:07,161 INFO L78 Accepts]: Start accepts. Automaton has 3135 states and 15575 transitions. Word has length 31 [2021-03-11 14:25:07,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:25:07,161 INFO L480 AbstractCegarLoop]: Abstraction has 3135 states and 15575 transitions. [2021-03-11 14:25:07,161 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:25:07,161 INFO L276 IsEmpty]: Start isEmpty. Operand 3135 states and 15575 transitions. [2021-03-11 14:25:07,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:25:07,166 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:25:07,166 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:25:07,166 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable603 [2021-03-11 14:25:07,166 INFO L428 AbstractCegarLoop]: === Iteration 605 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:25:07,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:25:07,166 INFO L82 PathProgramCache]: Analyzing trace with hash 1066463019, now seen corresponding path program 596 times [2021-03-11 14:25:07,167 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:25:07,167 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1809247864] [2021-03-11 14:25:07,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:25:07,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:25:07,179 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:25:07,180 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:25:07,196 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:25:07,197 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:25:07,224 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:25:07,225 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:25:07,272 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:25:07,274 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:25:07,317 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:25:07,318 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:25:07,371 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:25:07,372 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:25:07,429 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:25:07,431 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:25:07,502 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:25:07,504 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:25:07,586 INFO L142 QuantifierPusher]: treesize reduction 54, result has 55.4 percent of original size [2021-03-11 14:25:07,588 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-03-11 14:25:07,738 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 32 [2021-03-11 14:25:07,741 INFO L142 QuantifierPusher]: treesize reduction 72, result has 49.7 percent of original size [2021-03-11 14:25:07,742 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-03-11 14:25:07,849 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:25:07,850 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:25:07,949 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:25:07,949 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1809247864] [2021-03-11 14:25:07,949 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:25:07,949 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:25:07,949 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217640048] [2021-03-11 14:25:07,949 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:25:07,949 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:25:07,949 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:25:07,950 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:25:07,950 INFO L87 Difference]: Start difference. First operand 3135 states and 15575 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:25:08,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:25:08,433 INFO L93 Difference]: Finished difference Result 6062 states and 26889 transitions. [2021-03-11 14:25:08,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:25:08,436 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:25:08,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:25:08,450 INFO L225 Difference]: With dead ends: 6062 [2021-03-11 14:25:08,450 INFO L226 Difference]: Without dead ends: 6033 [2021-03-11 14:25:08,450 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 810.4ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:25:08,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6033 states. [2021-03-11 14:25:08,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6033 to 3128. [2021-03-11 14:25:08,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3128 states, 3127 states have (on average 4.974416373520946) internal successors, (15555), 3127 states have internal predecessors, (15555), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:25:08,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3128 states to 3128 states and 15555 transitions. [2021-03-11 14:25:08,587 INFO L78 Accepts]: Start accepts. Automaton has 3128 states and 15555 transitions. Word has length 31 [2021-03-11 14:25:08,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:25:08,587 INFO L480 AbstractCegarLoop]: Abstraction has 3128 states and 15555 transitions. [2021-03-11 14:25:08,587 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:25:08,587 INFO L276 IsEmpty]: Start isEmpty. Operand 3128 states and 15555 transitions. [2021-03-11 14:25:08,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:25:08,592 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:25:08,592 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:25:08,592 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable604 [2021-03-11 14:25:08,592 INFO L428 AbstractCegarLoop]: === Iteration 606 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:25:08,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:25:08,592 INFO L82 PathProgramCache]: Analyzing trace with hash -1328231265, now seen corresponding path program 597 times [2021-03-11 14:25:08,592 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:25:08,592 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [191584990] [2021-03-11 14:25:08,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:25:08,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:25:08,609 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:25:08,611 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:25:08,612 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:25:08,613 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:25:08,627 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:25:08,628 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:25:08,652 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:25:08,653 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:25:08,686 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:25:08,687 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:25:08,732 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:25:08,733 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:25:08,787 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:25:08,788 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:25:08,854 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:25:08,855 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:25:08,938 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:25:08,939 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:25:09,034 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:25:09,035 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:25:09,150 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:25:09,151 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:25:09,254 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:25:09,254 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [191584990] [2021-03-11 14:25:09,254 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:25:09,254 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:25:09,254 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [633510816] [2021-03-11 14:25:09,254 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:25:09,254 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:25:09,254 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:25:09,254 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:25:09,254 INFO L87 Difference]: Start difference. First operand 3128 states and 15555 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:25:09,700 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 38 [2021-03-11 14:25:09,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:25:09,741 INFO L93 Difference]: Finished difference Result 6053 states and 26872 transitions. [2021-03-11 14:25:09,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:25:09,744 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:25:09,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:25:09,757 INFO L225 Difference]: With dead ends: 6053 [2021-03-11 14:25:09,758 INFO L226 Difference]: Without dead ends: 6036 [2021-03-11 14:25:09,758 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 775.6ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:25:09,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6036 states. [2021-03-11 14:25:09,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6036 to 3134. [2021-03-11 14:25:09,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3134 states, 3133 states have (on average 4.968400893712097) internal successors, (15566), 3133 states have internal predecessors, (15566), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:25:09,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3134 states to 3134 states and 15566 transitions. [2021-03-11 14:25:09,896 INFO L78 Accepts]: Start accepts. Automaton has 3134 states and 15566 transitions. Word has length 31 [2021-03-11 14:25:09,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:25:09,897 INFO L480 AbstractCegarLoop]: Abstraction has 3134 states and 15566 transitions. [2021-03-11 14:25:09,897 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:25:09,897 INFO L276 IsEmpty]: Start isEmpty. Operand 3134 states and 15566 transitions. [2021-03-11 14:25:09,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:25:09,901 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:25:09,902 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:25:09,902 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable605 [2021-03-11 14:25:09,902 INFO L428 AbstractCegarLoop]: === Iteration 607 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:25:09,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:25:09,902 INFO L82 PathProgramCache]: Analyzing trace with hash 431821675, now seen corresponding path program 598 times [2021-03-11 14:25:09,902 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:25:09,902 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1164355821] [2021-03-11 14:25:09,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:25:09,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:25:09,914 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:25:09,915 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:25:09,916 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:25:09,917 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:25:09,931 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:25:09,932 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:25:09,956 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:25:09,957 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:25:09,994 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:25:09,995 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:25:10,043 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:25:10,044 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:25:10,106 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:25:10,108 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:25:10,182 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:25:10,183 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:25:10,268 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:25:10,269 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:25:10,361 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:25:10,362 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:25:10,476 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:25:10,477 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:25:10,577 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:25:10,577 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1164355821] [2021-03-11 14:25:10,577 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:25:10,577 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:25:10,577 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1550200631] [2021-03-11 14:25:10,578 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:25:10,578 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:25:10,578 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:25:10,578 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:25:10,578 INFO L87 Difference]: Start difference. First operand 3134 states and 15566 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:25:11,041 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 40 [2021-03-11 14:25:11,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:25:11,087 INFO L93 Difference]: Finished difference Result 6055 states and 26870 transitions. [2021-03-11 14:25:11,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:25:11,090 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:25:11,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:25:11,104 INFO L225 Difference]: With dead ends: 6055 [2021-03-11 14:25:11,104 INFO L226 Difference]: Without dead ends: 6030 [2021-03-11 14:25:11,104 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 815.3ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:25:11,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6030 states. [2021-03-11 14:25:11,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6030 to 3128. [2021-03-11 14:25:11,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3128 states, 3127 states have (on average 4.972497601535018) internal successors, (15549), 3127 states have internal predecessors, (15549), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:25:11,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3128 states to 3128 states and 15549 transitions. [2021-03-11 14:25:11,246 INFO L78 Accepts]: Start accepts. Automaton has 3128 states and 15549 transitions. Word has length 31 [2021-03-11 14:25:11,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:25:11,246 INFO L480 AbstractCegarLoop]: Abstraction has 3128 states and 15549 transitions. [2021-03-11 14:25:11,246 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:25:11,246 INFO L276 IsEmpty]: Start isEmpty. Operand 3128 states and 15549 transitions. [2021-03-11 14:25:11,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:25:11,251 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:25:11,251 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:25:11,251 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable606 [2021-03-11 14:25:11,251 INFO L428 AbstractCegarLoop]: === Iteration 608 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:25:11,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:25:11,252 INFO L82 PathProgramCache]: Analyzing trace with hash -206470689, now seen corresponding path program 599 times [2021-03-11 14:25:11,252 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:25:11,252 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [468814724] [2021-03-11 14:25:11,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:25:11,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:25:11,267 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:25:11,268 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:25:11,269 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:25:11,270 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:25:11,285 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:25:11,286 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:25:11,312 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:25:11,313 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:25:11,350 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:25:11,351 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:25:11,400 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:25:11,401 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:25:11,464 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:25:11,466 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:25:11,542 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:25:11,544 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:25:11,634 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:25:11,635 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:25:11,740 INFO L142 QuantifierPusher]: treesize reduction 72, result has 49.7 percent of original size [2021-03-11 14:25:11,742 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-03-11 14:25:11,860 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:25:11,861 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:25:11,965 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:25:11,966 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [468814724] [2021-03-11 14:25:11,966 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:25:11,966 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:25:11,966 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1042314112] [2021-03-11 14:25:11,966 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:25:11,966 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:25:11,966 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:25:11,966 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:25:11,966 INFO L87 Difference]: Start difference. First operand 3128 states and 15549 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:25:12,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:25:12,547 INFO L93 Difference]: Finished difference Result 6066 states and 26892 transitions. [2021-03-11 14:25:12,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:25:12,551 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:25:12,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:25:12,565 INFO L225 Difference]: With dead ends: 6066 [2021-03-11 14:25:12,565 INFO L226 Difference]: Without dead ends: 6044 [2021-03-11 14:25:12,565 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 762.6ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:25:12,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6044 states. [2021-03-11 14:25:12,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6044 to 3137. [2021-03-11 14:25:12,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3137 states, 3136 states have (on average 4.963329081632653) internal successors, (15565), 3136 states have internal predecessors, (15565), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:25:12,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3137 states to 3137 states and 15565 transitions. [2021-03-11 14:25:12,709 INFO L78 Accepts]: Start accepts. Automaton has 3137 states and 15565 transitions. Word has length 31 [2021-03-11 14:25:12,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:25:12,709 INFO L480 AbstractCegarLoop]: Abstraction has 3137 states and 15565 transitions. [2021-03-11 14:25:12,709 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:25:12,709 INFO L276 IsEmpty]: Start isEmpty. Operand 3137 states and 15565 transitions. [2021-03-11 14:25:12,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:25:12,714 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:25:12,714 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:25:12,714 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable607 [2021-03-11 14:25:12,714 INFO L428 AbstractCegarLoop]: === Iteration 609 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:25:12,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:25:12,715 INFO L82 PathProgramCache]: Analyzing trace with hash -628956415, now seen corresponding path program 600 times [2021-03-11 14:25:12,715 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:25:12,715 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [342028675] [2021-03-11 14:25:12,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:25:12,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:25:12,727 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:25:12,728 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:25:12,729 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:25:12,730 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:25:12,746 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:25:12,748 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:25:12,775 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:25:12,777 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:25:12,816 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:25:12,817 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:25:12,870 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:25:12,872 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:25:12,937 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:25:12,938 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:25:13,016 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:25:13,018 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:25:13,110 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:25:13,111 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:25:13,216 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:25:13,218 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:25:13,332 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:25:13,333 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:25:13,436 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:25:13,436 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [342028675] [2021-03-11 14:25:13,436 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:25:13,436 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:25:13,437 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1102219356] [2021-03-11 14:25:13,437 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:25:13,437 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:25:13,437 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:25:13,437 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:25:13,437 INFO L87 Difference]: Start difference. First operand 3137 states and 15565 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:25:13,993 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 40 [2021-03-11 14:25:14,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:25:14,050 INFO L93 Difference]: Finished difference Result 6063 states and 26878 transitions. [2021-03-11 14:25:14,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:25:14,054 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:25:14,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:25:14,068 INFO L225 Difference]: With dead ends: 6063 [2021-03-11 14:25:14,068 INFO L226 Difference]: Without dead ends: 6011 [2021-03-11 14:25:14,068 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 844.0ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:25:14,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6011 states. [2021-03-11 14:25:14,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6011 to 3104. [2021-03-11 14:25:14,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3104 states, 3103 states have (on average 4.994521430873348) internal successors, (15498), 3103 states have internal predecessors, (15498), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:25:14,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3104 states to 3104 states and 15498 transitions. [2021-03-11 14:25:14,204 INFO L78 Accepts]: Start accepts. Automaton has 3104 states and 15498 transitions. Word has length 31 [2021-03-11 14:25:14,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:25:14,204 INFO L480 AbstractCegarLoop]: Abstraction has 3104 states and 15498 transitions. [2021-03-11 14:25:14,204 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:25:14,204 INFO L276 IsEmpty]: Start isEmpty. Operand 3104 states and 15498 transitions. [2021-03-11 14:25:14,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:25:14,209 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:25:14,209 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:25:14,209 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable608 [2021-03-11 14:25:14,209 INFO L428 AbstractCegarLoop]: === Iteration 610 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:25:14,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:25:14,209 INFO L82 PathProgramCache]: Analyzing trace with hash 171690885, now seen corresponding path program 601 times [2021-03-11 14:25:14,209 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:25:14,209 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [677072680] [2021-03-11 14:25:14,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:25:14,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:25:14,221 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:25:14,222 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:25:14,223 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:25:14,224 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:25:14,239 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:25:14,240 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:25:14,265 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:25:14,266 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:25:14,301 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:25:14,302 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:25:14,348 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:25:14,349 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:25:14,406 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:25:14,407 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:25:14,522 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:25:14,523 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:25:14,609 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:25:14,610 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:25:14,710 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:25:14,711 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:25:14,820 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:25:14,821 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:25:14,918 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:25:14,918 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [677072680] [2021-03-11 14:25:14,918 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:25:14,918 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:25:14,919 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2062939797] [2021-03-11 14:25:14,919 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:25:14,919 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:25:14,919 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:25:14,919 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:25:14,919 INFO L87 Difference]: Start difference. First operand 3104 states and 15498 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:25:15,415 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 38 [2021-03-11 14:25:15,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:25:15,457 INFO L93 Difference]: Finished difference Result 5989 states and 26755 transitions. [2021-03-11 14:25:15,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:25:15,460 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:25:15,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:25:15,474 INFO L225 Difference]: With dead ends: 5989 [2021-03-11 14:25:15,474 INFO L226 Difference]: Without dead ends: 5973 [2021-03-11 14:25:15,474 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 824.5ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:25:15,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5973 states. [2021-03-11 14:25:15,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5973 to 3126. [2021-03-11 14:25:15,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3126 states, 3125 states have (on average 4.98816) internal successors, (15588), 3125 states have internal predecessors, (15588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:25:15,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3126 states to 3126 states and 15588 transitions. [2021-03-11 14:25:15,613 INFO L78 Accepts]: Start accepts. Automaton has 3126 states and 15588 transitions. Word has length 31 [2021-03-11 14:25:15,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:25:15,613 INFO L480 AbstractCegarLoop]: Abstraction has 3126 states and 15588 transitions. [2021-03-11 14:25:15,613 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:25:15,613 INFO L276 IsEmpty]: Start isEmpty. Operand 3126 states and 15588 transitions. [2021-03-11 14:25:15,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:25:15,618 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:25:15,618 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:25:15,618 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable609 [2021-03-11 14:25:15,618 INFO L428 AbstractCegarLoop]: === Iteration 611 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:25:15,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:25:15,618 INFO L82 PathProgramCache]: Analyzing trace with hash -1518252019, now seen corresponding path program 602 times [2021-03-11 14:25:15,618 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:25:15,618 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1662781265] [2021-03-11 14:25:15,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:25:15,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:25:15,630 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:25:15,632 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:25:15,633 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:25:15,634 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:25:15,648 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:25:15,649 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:25:15,674 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:25:15,675 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:25:15,712 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:25:15,713 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:25:15,760 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:25:15,761 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:25:15,824 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:25:15,825 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:25:15,948 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 27 DAG size of output: 25 [2021-03-11 14:25:15,950 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:25:15,952 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:25:16,046 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:25:16,047 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:25:16,155 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:25:16,157 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:25:16,278 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:25:16,280 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:25:16,393 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:25:16,394 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1662781265] [2021-03-11 14:25:16,394 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:25:16,394 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:25:16,394 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [931174571] [2021-03-11 14:25:16,394 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:25:16,394 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:25:16,394 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:25:16,394 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:25:16,394 INFO L87 Difference]: Start difference. First operand 3126 states and 15588 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:25:16,904 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 38 [2021-03-11 14:25:16,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:25:16,943 INFO L93 Difference]: Finished difference Result 5990 states and 26752 transitions. [2021-03-11 14:25:16,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:25:16,946 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:25:16,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:25:16,959 INFO L225 Difference]: With dead ends: 5990 [2021-03-11 14:25:16,959 INFO L226 Difference]: Without dead ends: 5968 [2021-03-11 14:25:16,959 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 902.4ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:25:17,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5968 states. [2021-03-11 14:25:17,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5968 to 3121. [2021-03-11 14:25:17,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3121 states, 3120 states have (on average 4.991666666666666) internal successors, (15574), 3120 states have internal predecessors, (15574), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:25:17,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3121 states to 3121 states and 15574 transitions. [2021-03-11 14:25:17,096 INFO L78 Accepts]: Start accepts. Automaton has 3121 states and 15574 transitions. Word has length 31 [2021-03-11 14:25:17,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:25:17,096 INFO L480 AbstractCegarLoop]: Abstraction has 3121 states and 15574 transitions. [2021-03-11 14:25:17,097 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:25:17,097 INFO L276 IsEmpty]: Start isEmpty. Operand 3121 states and 15574 transitions. [2021-03-11 14:25:17,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:25:17,102 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:25:17,102 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:25:17,102 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable610 [2021-03-11 14:25:17,102 INFO L428 AbstractCegarLoop]: === Iteration 612 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:25:17,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:25:17,102 INFO L82 PathProgramCache]: Analyzing trace with hash -252620351, now seen corresponding path program 603 times [2021-03-11 14:25:17,102 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:25:17,102 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1553845067] [2021-03-11 14:25:17,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:25:17,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:25:17,114 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:25:17,115 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:25:17,116 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:25:17,117 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:25:17,132 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:25:17,133 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:25:17,162 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:25:17,163 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:25:17,206 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:25:17,207 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:25:17,257 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:25:17,259 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:25:17,323 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:25:17,324 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:25:17,441 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:25:17,442 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:25:17,525 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:25:17,527 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:25:17,617 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:25:17,618 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:25:17,724 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:25:17,725 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:25:17,825 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:25:17,825 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1553845067] [2021-03-11 14:25:17,825 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:25:17,825 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:25:17,825 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2136884399] [2021-03-11 14:25:17,825 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:25:17,825 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:25:17,825 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:25:17,825 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:25:17,825 INFO L87 Difference]: Start difference. First operand 3121 states and 15574 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:25:18,423 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 38 [2021-03-11 14:25:18,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:25:18,458 INFO L93 Difference]: Finished difference Result 5990 states and 26752 transitions. [2021-03-11 14:25:18,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:25:18,461 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:25:18,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:25:18,475 INFO L225 Difference]: With dead ends: 5990 [2021-03-11 14:25:18,475 INFO L226 Difference]: Without dead ends: 5974 [2021-03-11 14:25:18,475 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 841.9ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:25:18,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5974 states. [2021-03-11 14:25:18,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5974 to 3126. [2021-03-11 14:25:18,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3126 states, 3125 states have (on average 4.98656) internal successors, (15583), 3125 states have internal predecessors, (15583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:25:18,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3126 states to 3126 states and 15583 transitions. [2021-03-11 14:25:18,609 INFO L78 Accepts]: Start accepts. Automaton has 3126 states and 15583 transitions. Word has length 31 [2021-03-11 14:25:18,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:25:18,609 INFO L480 AbstractCegarLoop]: Abstraction has 3126 states and 15583 transitions. [2021-03-11 14:25:18,610 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:25:18,610 INFO L276 IsEmpty]: Start isEmpty. Operand 3126 states and 15583 transitions. [2021-03-11 14:25:18,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:25:18,614 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:25:18,614 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:25:18,614 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable611 [2021-03-11 14:25:18,614 INFO L428 AbstractCegarLoop]: === Iteration 613 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:25:18,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:25:18,615 INFO L82 PathProgramCache]: Analyzing trace with hash 1507432589, now seen corresponding path program 604 times [2021-03-11 14:25:18,615 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:25:18,615 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [552637071] [2021-03-11 14:25:18,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:25:18,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:25:18,627 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:25:18,628 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:25:18,629 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:25:18,630 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:25:18,644 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:25:18,645 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:25:18,669 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:25:18,670 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:25:18,705 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:25:18,706 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:25:18,752 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:25:18,753 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:25:18,816 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:25:18,817 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:25:18,931 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:25:18,932 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:25:19,011 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:25:19,012 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:25:19,113 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:25:19,114 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:25:19,235 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:25:19,236 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:25:19,330 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:25:19,331 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [552637071] [2021-03-11 14:25:19,331 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:25:19,331 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:25:19,331 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [375350786] [2021-03-11 14:25:19,331 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:25:19,331 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:25:19,331 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:25:19,331 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:25:19,331 INFO L87 Difference]: Start difference. First operand 3126 states and 15583 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:25:19,899 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 37 [2021-03-11 14:25:19,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:25:19,944 INFO L93 Difference]: Finished difference Result 5992 states and 26751 transitions. [2021-03-11 14:25:19,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:25:19,947 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:25:19,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:25:19,961 INFO L225 Difference]: With dead ends: 5992 [2021-03-11 14:25:19,961 INFO L226 Difference]: Without dead ends: 5969 [2021-03-11 14:25:19,961 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 830.3ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:25:20,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5969 states. [2021-03-11 14:25:20,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5969 to 3121. [2021-03-11 14:25:20,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3121 states, 3120 states have (on average 4.990064102564102) internal successors, (15569), 3120 states have internal predecessors, (15569), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:25:20,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3121 states to 3121 states and 15569 transitions. [2021-03-11 14:25:20,099 INFO L78 Accepts]: Start accepts. Automaton has 3121 states and 15569 transitions. Word has length 31 [2021-03-11 14:25:20,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:25:20,099 INFO L480 AbstractCegarLoop]: Abstraction has 3121 states and 15569 transitions. [2021-03-11 14:25:20,099 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:25:20,099 INFO L276 IsEmpty]: Start isEmpty. Operand 3121 states and 15569 transitions. [2021-03-11 14:25:20,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:25:20,103 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:25:20,104 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:25:20,104 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable612 [2021-03-11 14:25:20,104 INFO L428 AbstractCegarLoop]: === Iteration 614 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:25:20,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:25:20,104 INFO L82 PathProgramCache]: Analyzing trace with hash 1503781569, now seen corresponding path program 605 times [2021-03-11 14:25:20,104 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:25:20,104 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1489012752] [2021-03-11 14:25:20,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:25:20,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:25:20,116 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:25:20,117 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:25:20,118 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:25:20,119 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:25:20,134 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:25:20,135 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:25:20,159 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:25:20,160 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:25:20,196 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:25:20,197 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:25:20,245 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:25:20,246 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:25:20,304 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:25:20,305 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:25:20,431 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 27 DAG size of output: 25 [2021-03-11 14:25:20,433 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:25:20,434 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:25:20,517 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:25:20,518 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:25:20,613 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:25:20,614 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:25:20,729 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:25:20,730 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:25:20,829 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:25:20,829 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1489012752] [2021-03-11 14:25:20,829 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:25:20,829 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:25:20,829 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [756255710] [2021-03-11 14:25:20,829 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:25:20,829 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:25:20,830 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:25:20,830 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:25:20,830 INFO L87 Difference]: Start difference. First operand 3121 states and 15569 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:25:21,286 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 38 [2021-03-11 14:25:21,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:25:21,323 INFO L93 Difference]: Finished difference Result 5993 states and 26754 transitions. [2021-03-11 14:25:21,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:25:21,326 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:25:21,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:25:21,340 INFO L225 Difference]: With dead ends: 5993 [2021-03-11 14:25:21,340 INFO L226 Difference]: Without dead ends: 5976 [2021-03-11 14:25:21,340 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 841.4ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:25:21,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5976 states. [2021-03-11 14:25:21,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5976 to 3127. [2021-03-11 14:25:21,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3127 states, 3126 states have (on average 4.984005118362124) internal successors, (15580), 3126 states have internal predecessors, (15580), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:25:21,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3127 states to 3127 states and 15580 transitions. [2021-03-11 14:25:21,477 INFO L78 Accepts]: Start accepts. Automaton has 3127 states and 15580 transitions. Word has length 31 [2021-03-11 14:25:21,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:25:21,477 INFO L480 AbstractCegarLoop]: Abstraction has 3127 states and 15580 transitions. [2021-03-11 14:25:21,477 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:25:21,477 INFO L276 IsEmpty]: Start isEmpty. Operand 3127 states and 15580 transitions. [2021-03-11 14:25:21,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:25:21,482 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:25:21,482 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:25:21,482 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable613 [2021-03-11 14:25:21,482 INFO L428 AbstractCegarLoop]: === Iteration 615 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:25:21,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:25:21,482 INFO L82 PathProgramCache]: Analyzing trace with hash 658810117, now seen corresponding path program 606 times [2021-03-11 14:25:21,483 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:25:21,483 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [142227753] [2021-03-11 14:25:21,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:25:21,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:25:21,495 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:25:21,496 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:25:21,497 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:25:21,498 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:25:21,513 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:25:21,514 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:25:21,540 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:25:21,541 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:25:21,577 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:25:21,578 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:25:21,630 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:25:21,631 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:25:21,700 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:25:21,702 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:25:21,838 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 27 DAG size of output: 25 [2021-03-11 14:25:21,841 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:25:21,842 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:25:21,934 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:25:21,936 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:25:22,039 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:25:22,040 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:25:22,151 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:25:22,153 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:25:22,250 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:25:22,250 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [142227753] [2021-03-11 14:25:22,251 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:25:22,251 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:25:22,251 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1773432071] [2021-03-11 14:25:22,251 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:25:22,251 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:25:22,251 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:25:22,251 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:25:22,251 INFO L87 Difference]: Start difference. First operand 3127 states and 15580 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:25:22,859 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 38 [2021-03-11 14:25:22,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:25:22,905 INFO L93 Difference]: Finished difference Result 5994 states and 26750 transitions. [2021-03-11 14:25:22,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:25:22,909 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:25:22,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:25:22,922 INFO L225 Difference]: With dead ends: 5994 [2021-03-11 14:25:22,922 INFO L226 Difference]: Without dead ends: 5965 [2021-03-11 14:25:22,922 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 912.3ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:25:23,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5965 states. [2021-03-11 14:25:23,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5965 to 3116. [2021-03-11 14:25:23,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3116 states, 3115 states have (on average 4.993579454253611) internal successors, (15555), 3115 states have internal predecessors, (15555), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:25:23,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3116 states to 3116 states and 15555 transitions. [2021-03-11 14:25:23,061 INFO L78 Accepts]: Start accepts. Automaton has 3116 states and 15555 transitions. Word has length 31 [2021-03-11 14:25:23,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:25:23,061 INFO L480 AbstractCegarLoop]: Abstraction has 3116 states and 15555 transitions. [2021-03-11 14:25:23,061 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:25:23,061 INFO L276 IsEmpty]: Start isEmpty. Operand 3116 states and 15555 transitions. [2021-03-11 14:25:23,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:25:23,066 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:25:23,066 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:25:23,066 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable614 [2021-03-11 14:25:23,066 INFO L428 AbstractCegarLoop]: === Iteration 616 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:25:23,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:25:23,066 INFO L82 PathProgramCache]: Analyzing trace with hash 1916054891, now seen corresponding path program 607 times [2021-03-11 14:25:23,066 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:25:23,066 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2070861763] [2021-03-11 14:25:23,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:25:23,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:25:23,080 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:25:23,081 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:25:23,082 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:25:23,083 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:25:23,100 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:25:23,101 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:25:23,128 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:25:23,130 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:25:23,167 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:25:23,168 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:25:23,216 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:25:23,218 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:25:23,277 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:25:23,278 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:25:23,399 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:25:23,400 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:25:23,535 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 28 [2021-03-11 14:25:23,538 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:25:23,539 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:25:23,642 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:25:23,643 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:25:23,766 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:25:23,768 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:25:23,880 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:25:23,880 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2070861763] [2021-03-11 14:25:23,880 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:25:23,880 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:25:23,880 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1415170137] [2021-03-11 14:25:23,880 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:25:23,880 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:25:23,881 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:25:23,881 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:25:23,881 INFO L87 Difference]: Start difference. First operand 3116 states and 15555 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:25:24,456 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 38 [2021-03-11 14:25:24,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:25:24,494 INFO L93 Difference]: Finished difference Result 5996 states and 26764 transitions. [2021-03-11 14:25:24,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:25:24,497 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:25:24,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:25:24,510 INFO L225 Difference]: With dead ends: 5996 [2021-03-11 14:25:24,510 INFO L226 Difference]: Without dead ends: 5980 [2021-03-11 14:25:24,510 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 940.8ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:25:24,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5980 states. [2021-03-11 14:25:24,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5980 to 3127. [2021-03-11 14:25:24,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3127 states, 3126 states have (on average 4.985924504158669) internal successors, (15586), 3126 states have internal predecessors, (15586), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:25:24,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3127 states to 3127 states and 15586 transitions. [2021-03-11 14:25:24,645 INFO L78 Accepts]: Start accepts. Automaton has 3127 states and 15586 transitions. Word has length 31 [2021-03-11 14:25:24,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:25:24,645 INFO L480 AbstractCegarLoop]: Abstraction has 3127 states and 15586 transitions. [2021-03-11 14:25:24,645 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:25:24,645 INFO L276 IsEmpty]: Start isEmpty. Operand 3127 states and 15586 transitions. [2021-03-11 14:25:24,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:25:24,650 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:25:24,650 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:25:24,650 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable615 [2021-03-11 14:25:24,650 INFO L428 AbstractCegarLoop]: === Iteration 617 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:25:24,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:25:24,650 INFO L82 PathProgramCache]: Analyzing trace with hash 226111987, now seen corresponding path program 608 times [2021-03-11 14:25:24,650 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:25:24,650 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [868022891] [2021-03-11 14:25:24,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:25:24,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:25:24,662 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:25:24,663 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:25:24,664 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:25:24,665 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:25:24,680 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:25:24,681 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:25:24,705 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:25:24,706 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:25:24,740 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:25:24,741 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:25:24,789 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:25:24,790 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:25:24,847 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:25:24,848 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:25:24,963 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:25:24,964 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:25:25,107 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 28 [2021-03-11 14:25:25,110 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:25:25,111 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:25:25,206 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:25:25,208 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:25:25,317 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:25:25,319 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:25:25,436 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:25:25,437 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [868022891] [2021-03-11 14:25:25,437 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:25:25,437 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:25:25,437 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1555685168] [2021-03-11 14:25:25,437 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:25:25,437 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:25:25,437 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:25:25,437 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:25:25,437 INFO L87 Difference]: Start difference. First operand 3127 states and 15586 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:25:26,040 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 38 [2021-03-11 14:25:26,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:25:26,080 INFO L93 Difference]: Finished difference Result 5997 states and 26761 transitions. [2021-03-11 14:25:26,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:25:26,083 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:25:26,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:25:26,096 INFO L225 Difference]: With dead ends: 5997 [2021-03-11 14:25:26,096 INFO L226 Difference]: Without dead ends: 5975 [2021-03-11 14:25:26,096 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 918.7ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:25:26,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5975 states. [2021-03-11 14:25:26,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5975 to 3122. [2021-03-11 14:25:26,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3122 states, 3121 states have (on average 4.989426465876321) internal successors, (15572), 3121 states have internal predecessors, (15572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:25:26,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3122 states to 3122 states and 15572 transitions. [2021-03-11 14:25:26,233 INFO L78 Accepts]: Start accepts. Automaton has 3122 states and 15572 transitions. Word has length 31 [2021-03-11 14:25:26,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:25:26,233 INFO L480 AbstractCegarLoop]: Abstraction has 3122 states and 15572 transitions. [2021-03-11 14:25:26,233 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:25:26,233 INFO L276 IsEmpty]: Start isEmpty. Operand 3122 states and 15572 transitions. [2021-03-11 14:25:26,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:25:26,238 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:25:26,238 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:25:26,238 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable616 [2021-03-11 14:25:26,238 INFO L428 AbstractCegarLoop]: === Iteration 618 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:25:26,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:25:26,239 INFO L82 PathProgramCache]: Analyzing trace with hash 855276801, now seen corresponding path program 609 times [2021-03-11 14:25:26,239 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:25:26,239 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1434588563] [2021-03-11 14:25:26,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:25:26,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:25:26,251 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:25:26,252 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:25:26,253 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:25:26,254 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:25:26,268 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:25:26,269 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:25:26,293 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:25:26,294 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:25:26,329 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:25:26,330 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:25:26,377 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:25:26,378 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:25:26,438 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:25:26,440 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:25:26,558 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:25:26,559 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:25:26,692 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 28 [2021-03-11 14:25:26,694 INFO L142 QuantifierPusher]: treesize reduction 54, result has 55.4 percent of original size [2021-03-11 14:25:26,696 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-03-11 14:25:26,849 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 32 [2021-03-11 14:25:26,852 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:25:26,853 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:25:26,962 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:25:26,963 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:25:27,062 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:25:27,062 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1434588563] [2021-03-11 14:25:27,062 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:25:27,062 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:25:27,062 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [50179588] [2021-03-11 14:25:27,062 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:25:27,062 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:25:27,062 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:25:27,062 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:25:27,062 INFO L87 Difference]: Start difference. First operand 3122 states and 15572 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:25:27,713 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 38 [2021-03-11 14:25:27,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:25:27,750 INFO L93 Difference]: Finished difference Result 6002 states and 26770 transitions. [2021-03-11 14:25:27,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:25:27,754 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:25:27,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:25:27,767 INFO L225 Difference]: With dead ends: 6002 [2021-03-11 14:25:27,768 INFO L226 Difference]: Without dead ends: 5986 [2021-03-11 14:25:27,768 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 950.2ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:25:27,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5986 states. [2021-03-11 14:25:27,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5986 to 3128. [2021-03-11 14:25:27,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3128 states, 3127 states have (on average 4.983370642788615) internal successors, (15583), 3127 states have internal predecessors, (15583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:25:27,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3128 states to 3128 states and 15583 transitions. [2021-03-11 14:25:27,908 INFO L78 Accepts]: Start accepts. Automaton has 3128 states and 15583 transitions. Word has length 31 [2021-03-11 14:25:27,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:25:27,908 INFO L480 AbstractCegarLoop]: Abstraction has 3128 states and 15583 transitions. [2021-03-11 14:25:27,908 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:25:27,908 INFO L276 IsEmpty]: Start isEmpty. Operand 3128 states and 15583 transitions. [2021-03-11 14:25:27,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:25:27,914 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:25:27,914 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:25:27,915 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable617 [2021-03-11 14:25:27,915 INFO L428 AbstractCegarLoop]: === Iteration 619 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:25:27,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:25:27,915 INFO L82 PathProgramCache]: Analyzing trace with hash 1347872563, now seen corresponding path program 610 times [2021-03-11 14:25:27,915 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:25:27,915 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [336369126] [2021-03-11 14:25:27,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:25:27,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:25:27,939 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:25:27,940 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:25:27,941 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:25:27,943 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:25:27,957 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:25:27,958 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:25:27,983 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:25:27,984 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:25:28,024 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:25:28,025 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:25:28,074 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:25:28,075 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:25:28,134 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:25:28,136 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:25:28,257 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:25:28,258 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:25:28,390 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 28 [2021-03-11 14:25:28,392 INFO L142 QuantifierPusher]: treesize reduction 54, result has 55.4 percent of original size [2021-03-11 14:25:28,394 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-03-11 14:25:28,553 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 32 [2021-03-11 14:25:28,555 INFO L142 QuantifierPusher]: treesize reduction 72, result has 49.7 percent of original size [2021-03-11 14:25:28,557 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-03-11 14:25:28,669 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:25:28,670 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:25:28,769 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:25:28,769 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [336369126] [2021-03-11 14:25:28,769 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:25:28,769 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:25:28,769 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [501716394] [2021-03-11 14:25:28,770 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:25:28,770 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:25:28,770 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:25:28,770 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:25:28,770 INFO L87 Difference]: Start difference. First operand 3128 states and 15583 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:25:29,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:25:29,356 INFO L93 Difference]: Finished difference Result 6008 states and 26776 transitions. [2021-03-11 14:25:29,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:25:29,360 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:25:29,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:25:29,373 INFO L225 Difference]: With dead ends: 6008 [2021-03-11 14:25:29,374 INFO L226 Difference]: Without dead ends: 5980 [2021-03-11 14:25:29,374 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 885.6ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:25:29,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5980 states. [2021-03-11 14:25:29,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5980 to 3122. [2021-03-11 14:25:29,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3122 states, 3121 states have (on average 4.987504005126562) internal successors, (15566), 3121 states have internal predecessors, (15566), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:25:29,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3122 states to 3122 states and 15566 transitions. [2021-03-11 14:25:29,513 INFO L78 Accepts]: Start accepts. Automaton has 3122 states and 15566 transitions. Word has length 31 [2021-03-11 14:25:29,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:25:29,513 INFO L480 AbstractCegarLoop]: Abstraction has 3122 states and 15566 transitions. [2021-03-11 14:25:29,513 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:25:29,513 INFO L276 IsEmpty]: Start isEmpty. Operand 3122 states and 15566 transitions. [2021-03-11 14:25:29,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:25:29,518 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:25:29,518 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:25:29,518 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable618 [2021-03-11 14:25:29,518 INFO L428 AbstractCegarLoop]: === Iteration 620 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:25:29,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:25:29,518 INFO L82 PathProgramCache]: Analyzing trace with hash -1683288575, now seen corresponding path program 611 times [2021-03-11 14:25:29,518 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:25:29,518 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [388073179] [2021-03-11 14:25:29,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:25:29,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:25:29,530 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:25:29,531 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:25:29,532 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:25:29,533 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:25:29,549 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:25:29,550 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:25:29,575 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:25:29,576 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:25:29,612 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:25:29,613 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:25:29,661 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:25:29,662 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:25:29,720 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:25:29,721 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:25:29,841 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:25:29,842 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:25:29,977 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 28 [2021-03-11 14:25:29,980 INFO L142 QuantifierPusher]: treesize reduction 54, result has 55.4 percent of original size [2021-03-11 14:25:29,981 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-03-11 14:25:30,146 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 32 [2021-03-11 14:25:30,149 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:25:30,151 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:25:30,272 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:25:30,273 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:25:30,381 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:25:30,382 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [388073179] [2021-03-11 14:25:30,382 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:25:30,382 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:25:30,382 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [111997575] [2021-03-11 14:25:30,382 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:25:30,382 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:25:30,382 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:25:30,382 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:25:30,382 INFO L87 Difference]: Start difference. First operand 3122 states and 15566 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:25:31,123 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 38 [2021-03-11 14:25:31,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:25:31,167 INFO L93 Difference]: Finished difference Result 6005 states and 26771 transitions. [2021-03-11 14:25:31,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:25:31,171 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:25:31,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:25:31,184 INFO L225 Difference]: With dead ends: 6005 [2021-03-11 14:25:31,184 INFO L226 Difference]: Without dead ends: 5988 [2021-03-11 14:25:31,184 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 990.4ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:25:31,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5988 states. [2021-03-11 14:25:31,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5988 to 3129. [2021-03-11 14:25:31,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3129 states, 3128 states have (on average 4.9804987212276215) internal successors, (15579), 3128 states have internal predecessors, (15579), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:25:31,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3129 states to 3129 states and 15579 transitions. [2021-03-11 14:25:31,322 INFO L78 Accepts]: Start accepts. Automaton has 3129 states and 15579 transitions. Word has length 31 [2021-03-11 14:25:31,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:25:31,322 INFO L480 AbstractCegarLoop]: Abstraction has 3129 states and 15579 transitions. [2021-03-11 14:25:31,322 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:25:31,322 INFO L276 IsEmpty]: Start isEmpty. Operand 3129 states and 15579 transitions. [2021-03-11 14:25:31,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:25:31,327 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:25:31,327 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:25:31,327 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable619 [2021-03-11 14:25:31,327 INFO L428 AbstractCegarLoop]: === Iteration 621 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:25:31,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:25:31,327 INFO L82 PathProgramCache]: Analyzing trace with hash 499250091, now seen corresponding path program 612 times [2021-03-11 14:25:31,328 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:25:31,328 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1336246483] [2021-03-11 14:25:31,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:25:31,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:25:31,340 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:25:31,341 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:25:31,342 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:25:31,343 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:25:31,359 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:25:31,360 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:25:31,386 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:25:31,387 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:25:31,424 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:25:31,425 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:25:31,475 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:25:31,476 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:25:31,534 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:25:31,535 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:25:31,660 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:25:31,661 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:25:31,800 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 28 [2021-03-11 14:25:31,803 INFO L142 QuantifierPusher]: treesize reduction 54, result has 55.4 percent of original size [2021-03-11 14:25:31,805 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-03-11 14:25:31,962 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 32 [2021-03-11 14:25:31,966 INFO L142 QuantifierPusher]: treesize reduction 72, result has 49.7 percent of original size [2021-03-11 14:25:31,967 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-03-11 14:25:32,085 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:25:32,086 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:25:32,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:25:32,188 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1336246483] [2021-03-11 14:25:32,188 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:25:32,188 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:25:32,188 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1034071411] [2021-03-11 14:25:32,188 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:25:32,188 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:25:32,188 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:25:32,188 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:25:32,188 INFO L87 Difference]: Start difference. First operand 3129 states and 15579 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:25:32,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:25:32,894 INFO L93 Difference]: Finished difference Result 6010 states and 26774 transitions. [2021-03-11 14:25:32,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:25:32,897 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:25:32,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:25:32,910 INFO L225 Difference]: With dead ends: 6010 [2021-03-11 14:25:32,910 INFO L226 Difference]: Without dead ends: 5975 [2021-03-11 14:25:32,910 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 917.2ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:25:32,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5975 states. [2021-03-11 14:25:33,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5975 to 3116. [2021-03-11 14:25:33,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3116 states, 3115 states have (on average 4.991653290529695) internal successors, (15549), 3115 states have internal predecessors, (15549), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:25:33,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3116 states to 3116 states and 15549 transitions. [2021-03-11 14:25:33,046 INFO L78 Accepts]: Start accepts. Automaton has 3116 states and 15549 transitions. Word has length 31 [2021-03-11 14:25:33,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:25:33,047 INFO L480 AbstractCegarLoop]: Abstraction has 3116 states and 15549 transitions. [2021-03-11 14:25:33,047 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:25:33,047 INFO L276 IsEmpty]: Start isEmpty. Operand 3116 states and 15549 transitions. [2021-03-11 14:25:33,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:25:33,051 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:25:33,051 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:25:33,052 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable620 [2021-03-11 14:25:33,052 INFO L428 AbstractCegarLoop]: === Iteration 622 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:25:33,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:25:33,052 INFO L82 PathProgramCache]: Analyzing trace with hash 1222997227, now seen corresponding path program 613 times [2021-03-11 14:25:33,052 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:25:33,052 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1197946167] [2021-03-11 14:25:33,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:25:33,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:25:33,064 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:25:33,065 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:25:33,066 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:25:33,067 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:25:33,082 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:25:33,083 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:25:33,108 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:25:33,109 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:25:33,145 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:25:33,147 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:25:33,203 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:25:33,204 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:25:33,267 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:25:33,268 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:25:33,389 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:25:33,390 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:25:33,529 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 28 [2021-03-11 14:25:33,532 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:25:33,533 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:25:33,634 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:25:33,635 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:25:33,764 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:25:33,765 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:25:33,866 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:25:33,867 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1197946167] [2021-03-11 14:25:33,867 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:25:33,867 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:25:33,867 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2070722634] [2021-03-11 14:25:33,867 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:25:33,867 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:25:33,867 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:25:33,867 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:25:33,867 INFO L87 Difference]: Start difference. First operand 3116 states and 15549 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:25:34,275 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 38 [2021-03-11 14:25:34,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:25:34,309 INFO L93 Difference]: Finished difference Result 5999 states and 26765 transitions. [2021-03-11 14:25:34,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:25:34,312 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:25:34,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:25:34,326 INFO L225 Difference]: With dead ends: 5999 [2021-03-11 14:25:34,326 INFO L226 Difference]: Without dead ends: 5983 [2021-03-11 14:25:34,326 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 927.5ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:25:34,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5983 states. [2021-03-11 14:25:34,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5983 to 3127. [2021-03-11 14:25:34,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3127 states, 3126 states have (on average 4.984005118362124) internal successors, (15580), 3126 states have internal predecessors, (15580), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:25:34,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3127 states to 3127 states and 15580 transitions. [2021-03-11 14:25:34,461 INFO L78 Accepts]: Start accepts. Automaton has 3127 states and 15580 transitions. Word has length 31 [2021-03-11 14:25:34,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:25:34,462 INFO L480 AbstractCegarLoop]: Abstraction has 3127 states and 15580 transitions. [2021-03-11 14:25:34,462 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:25:34,462 INFO L276 IsEmpty]: Start isEmpty. Operand 3127 states and 15580 transitions. [2021-03-11 14:25:34,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:25:34,466 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:25:34,466 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:25:34,466 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable621 [2021-03-11 14:25:34,466 INFO L428 AbstractCegarLoop]: === Iteration 623 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:25:34,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:25:34,467 INFO L82 PathProgramCache]: Analyzing trace with hash -1311917129, now seen corresponding path program 614 times [2021-03-11 14:25:34,467 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:25:34,467 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1534778601] [2021-03-11 14:25:34,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:25:34,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:25:34,479 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:25:34,480 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:25:34,481 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:25:34,482 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:25:34,496 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:25:34,497 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:25:34,521 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:25:34,522 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:25:34,557 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:25:34,558 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:25:34,607 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:25:34,608 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:25:34,667 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:25:34,669 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:25:34,785 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:25:34,786 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:25:34,923 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 28 [2021-03-11 14:25:34,926 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:25:34,927 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:25:35,021 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:25:35,023 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:25:35,135 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:25:35,137 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:25:35,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:25:35,238 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1534778601] [2021-03-11 14:25:35,238 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:25:35,238 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:25:35,238 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [635494784] [2021-03-11 14:25:35,238 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:25:35,239 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:25:35,239 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:25:35,239 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:25:35,239 INFO L87 Difference]: Start difference. First operand 3127 states and 15580 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:25:35,631 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 37 [2021-03-11 14:25:35,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:25:35,672 INFO L93 Difference]: Finished difference Result 6001 states and 26764 transitions. [2021-03-11 14:25:35,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:25:35,675 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:25:35,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:25:35,689 INFO L225 Difference]: With dead ends: 6001 [2021-03-11 14:25:35,689 INFO L226 Difference]: Without dead ends: 5978 [2021-03-11 14:25:35,689 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 885.1ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:25:35,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5978 states. [2021-03-11 14:25:35,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5978 to 3122. [2021-03-11 14:25:35,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3122 states, 3121 states have (on average 4.987504005126562) internal successors, (15566), 3121 states have internal predecessors, (15566), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:25:35,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3122 states to 3122 states and 15566 transitions. [2021-03-11 14:25:35,826 INFO L78 Accepts]: Start accepts. Automaton has 3122 states and 15566 transitions. Word has length 31 [2021-03-11 14:25:35,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:25:35,826 INFO L480 AbstractCegarLoop]: Abstraction has 3122 states and 15566 transitions. [2021-03-11 14:25:35,826 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:25:35,826 INFO L276 IsEmpty]: Start isEmpty. Operand 3122 states and 15566 transitions. [2021-03-11 14:25:35,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:25:35,830 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:25:35,831 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:25:35,831 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable622 [2021-03-11 14:25:35,831 INFO L428 AbstractCegarLoop]: === Iteration 624 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:25:35,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:25:35,831 INFO L82 PathProgramCache]: Analyzing trace with hash 586530373, now seen corresponding path program 615 times [2021-03-11 14:25:35,831 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:25:35,831 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1758975269] [2021-03-11 14:25:35,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:25:35,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:25:35,843 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:25:35,844 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:25:35,845 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:25:35,846 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:25:35,861 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:25:35,862 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:25:35,886 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:25:35,887 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:25:35,924 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:25:35,925 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:25:35,976 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:25:35,977 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:25:36,037 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:25:36,038 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:25:36,160 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:25:36,162 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:25:36,300 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 28 [2021-03-11 14:25:36,303 INFO L142 QuantifierPusher]: treesize reduction 54, result has 55.4 percent of original size [2021-03-11 14:25:36,304 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-03-11 14:25:36,441 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 28 [2021-03-11 14:25:36,444 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:25:36,445 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:25:36,553 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:25:36,554 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:25:36,661 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:25:36,661 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1758975269] [2021-03-11 14:25:36,661 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:25:36,661 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:25:36,661 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [530938311] [2021-03-11 14:25:36,661 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:25:36,661 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:25:36,661 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:25:36,662 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:25:36,662 INFO L87 Difference]: Start difference. First operand 3122 states and 15566 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:25:37,069 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 38 [2021-03-11 14:25:37,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:25:37,104 INFO L93 Difference]: Finished difference Result 6004 states and 26769 transitions. [2021-03-11 14:25:37,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:25:37,107 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:25:37,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:25:37,120 INFO L225 Difference]: With dead ends: 6004 [2021-03-11 14:25:37,120 INFO L226 Difference]: Without dead ends: 5988 [2021-03-11 14:25:37,120 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 952.0ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:25:37,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5988 states. [2021-03-11 14:25:37,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5988 to 3128. [2021-03-11 14:25:37,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3128 states, 3127 states have (on average 4.981451870802687) internal successors, (15577), 3127 states have internal predecessors, (15577), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:25:37,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3128 states to 3128 states and 15577 transitions. [2021-03-11 14:25:37,258 INFO L78 Accepts]: Start accepts. Automaton has 3128 states and 15577 transitions. Word has length 31 [2021-03-11 14:25:37,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:25:37,258 INFO L480 AbstractCegarLoop]: Abstraction has 3128 states and 15577 transitions. [2021-03-11 14:25:37,258 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:25:37,259 INFO L276 IsEmpty]: Start isEmpty. Operand 3128 states and 15577 transitions. [2021-03-11 14:25:37,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:25:37,264 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:25:37,264 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:25:37,264 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable623 [2021-03-11 14:25:37,264 INFO L428 AbstractCegarLoop]: === Iteration 625 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:25:37,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:25:37,264 INFO L82 PathProgramCache]: Analyzing trace with hash 1079126135, now seen corresponding path program 616 times [2021-03-11 14:25:37,264 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:25:37,264 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2065362656] [2021-03-11 14:25:37,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:25:37,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:25:37,276 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:25:37,277 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:25:37,279 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:25:37,280 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:25:37,295 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:25:37,296 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:25:37,322 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:25:37,323 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:25:37,360 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:25:37,361 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:25:37,411 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:25:37,413 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:25:37,471 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:25:37,472 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:25:37,596 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:25:37,597 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:25:37,735 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 28 [2021-03-11 14:25:37,738 INFO L142 QuantifierPusher]: treesize reduction 54, result has 55.4 percent of original size [2021-03-11 14:25:37,739 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-03-11 14:25:37,881 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 28 [2021-03-11 14:25:37,884 INFO L142 QuantifierPusher]: treesize reduction 72, result has 49.7 percent of original size [2021-03-11 14:25:37,886 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-03-11 14:25:38,000 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:25:38,001 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:25:38,105 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:25:38,105 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2065362656] [2021-03-11 14:25:38,106 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:25:38,106 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:25:38,106 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1981707459] [2021-03-11 14:25:38,106 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:25:38,106 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:25:38,106 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:25:38,106 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:25:38,106 INFO L87 Difference]: Start difference. First operand 3128 states and 15577 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:25:38,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:25:38,477 INFO L93 Difference]: Finished difference Result 6010 states and 26775 transitions. [2021-03-11 14:25:38,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:25:38,480 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:25:38,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:25:38,493 INFO L225 Difference]: With dead ends: 6010 [2021-03-11 14:25:38,493 INFO L226 Difference]: Without dead ends: 5982 [2021-03-11 14:25:38,493 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 887.1ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:25:38,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5982 states. [2021-03-11 14:25:38,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5982 to 3122. [2021-03-11 14:25:38,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3122 states, 3121 states have (on average 4.985581544376802) internal successors, (15560), 3121 states have internal predecessors, (15560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:25:38,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3122 states to 3122 states and 15560 transitions. [2021-03-11 14:25:38,627 INFO L78 Accepts]: Start accepts. Automaton has 3122 states and 15560 transitions. Word has length 31 [2021-03-11 14:25:38,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:25:38,627 INFO L480 AbstractCegarLoop]: Abstraction has 3122 states and 15560 transitions. [2021-03-11 14:25:38,627 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:25:38,627 INFO L276 IsEmpty]: Start isEmpty. Operand 3122 states and 15560 transitions. [2021-03-11 14:25:38,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:25:38,632 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:25:38,632 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:25:38,632 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable624 [2021-03-11 14:25:38,632 INFO L428 AbstractCegarLoop]: === Iteration 626 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:25:38,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:25:38,632 INFO L82 PathProgramCache]: Analyzing trace with hash 1073649605, now seen corresponding path program 617 times [2021-03-11 14:25:38,632 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:25:38,632 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1887184120] [2021-03-11 14:25:38,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:25:38,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:25:38,644 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:25:38,645 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:25:38,647 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:25:38,648 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:25:38,663 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:25:38,664 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:25:38,690 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:25:38,691 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:25:38,727 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:25:38,728 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:25:38,775 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:25:38,776 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:25:38,833 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:25:38,835 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:25:38,952 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:25:38,953 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:25:39,086 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 28 [2021-03-11 14:25:39,089 INFO L142 QuantifierPusher]: treesize reduction 54, result has 55.4 percent of original size [2021-03-11 14:25:39,090 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-03-11 14:25:39,260 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 33 [2021-03-11 14:25:39,263 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:25:39,265 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:25:39,396 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:25:39,397 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:25:39,512 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:25:39,512 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1887184120] [2021-03-11 14:25:39,512 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:25:39,512 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:25:39,512 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [613007866] [2021-03-11 14:25:39,512 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:25:39,513 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:25:39,513 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:25:39,513 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:25:39,513 INFO L87 Difference]: Start difference. First operand 3122 states and 15560 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:25:39,939 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 37 [2021-03-11 14:25:39,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:25:39,976 INFO L93 Difference]: Finished difference Result 6010 states and 26777 transitions. [2021-03-11 14:25:39,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:25:39,979 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:25:39,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:25:39,993 INFO L225 Difference]: With dead ends: 6010 [2021-03-11 14:25:39,993 INFO L226 Difference]: Without dead ends: 5992 [2021-03-11 14:25:39,993 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 1005.8ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:25:40,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5992 states. [2021-03-11 14:25:40,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5992 to 3130. [2021-03-11 14:25:40,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3130 states, 3129 states have (on average 4.977628635346756) internal successors, (15575), 3129 states have internal predecessors, (15575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:25:40,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3130 states to 3130 states and 15575 transitions. [2021-03-11 14:25:40,131 INFO L78 Accepts]: Start accepts. Automaton has 3130 states and 15575 transitions. Word has length 31 [2021-03-11 14:25:40,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:25:40,132 INFO L480 AbstractCegarLoop]: Abstraction has 3130 states and 15575 transitions. [2021-03-11 14:25:40,132 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:25:40,132 INFO L276 IsEmpty]: Start isEmpty. Operand 3130 states and 15575 transitions. [2021-03-11 14:25:40,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:25:40,136 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:25:40,136 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:25:40,136 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable625 [2021-03-11 14:25:40,137 INFO L428 AbstractCegarLoop]: === Iteration 627 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:25:40,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:25:40,137 INFO L82 PathProgramCache]: Analyzing trace with hash -193807573, now seen corresponding path program 618 times [2021-03-11 14:25:40,137 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:25:40,137 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [877597444] [2021-03-11 14:25:40,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:25:40,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:25:40,149 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:25:40,150 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:25:40,151 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:25:40,152 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:25:40,167 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:25:40,168 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:25:40,194 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:25:40,195 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:25:40,233 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:25:40,234 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:25:40,289 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:25:40,290 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:25:40,357 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:25:40,358 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:25:40,482 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:25:40,483 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:25:40,621 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 28 [2021-03-11 14:25:40,624 INFO L142 QuantifierPusher]: treesize reduction 54, result has 55.4 percent of original size [2021-03-11 14:25:40,625 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-03-11 14:25:40,844 WARN L205 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 33 [2021-03-11 14:25:40,847 INFO L142 QuantifierPusher]: treesize reduction 72, result has 49.7 percent of original size [2021-03-11 14:25:40,848 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-03-11 14:25:40,963 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:25:40,964 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:25:41,067 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:25:41,067 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [877597444] [2021-03-11 14:25:41,067 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:25:41,067 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:25:41,067 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1260076772] [2021-03-11 14:25:41,067 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:25:41,067 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:25:41,067 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:25:41,068 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:25:41,068 INFO L87 Difference]: Start difference. First operand 3130 states and 15575 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:25:41,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:25:41,481 INFO L93 Difference]: Finished difference Result 6014 states and 26777 transitions. [2021-03-11 14:25:41,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:25:41,484 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:25:41,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:25:41,497 INFO L225 Difference]: With dead ends: 6014 [2021-03-11 14:25:41,498 INFO L226 Difference]: Without dead ends: 5978 [2021-03-11 14:25:41,498 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 978.7ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:25:41,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5978 states. [2021-03-11 14:25:41,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5978 to 3116. [2021-03-11 14:25:41,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3116 states, 3115 states have (on average 4.989727126805779) internal successors, (15543), 3115 states have internal predecessors, (15543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:25:41,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3116 states to 3116 states and 15543 transitions. [2021-03-11 14:25:41,638 INFO L78 Accepts]: Start accepts. Automaton has 3116 states and 15543 transitions. Word has length 31 [2021-03-11 14:25:41,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:25:41,638 INFO L480 AbstractCegarLoop]: Abstraction has 3116 states and 15543 transitions. [2021-03-11 14:25:41,638 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:25:41,638 INFO L276 IsEmpty]: Start isEmpty. Operand 3116 states and 15543 transitions. [2021-03-11 14:25:41,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:25:41,644 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:25:41,644 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:25:41,644 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable626 [2021-03-11 14:25:41,644 INFO L428 AbstractCegarLoop]: === Iteration 628 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:25:41,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:25:41,644 INFO L82 PathProgramCache]: Analyzing trace with hash -1853061005, now seen corresponding path program 619 times [2021-03-11 14:25:41,644 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:25:41,644 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [540684246] [2021-03-11 14:25:41,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:25:41,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:25:41,657 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:25:41,658 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:25:41,659 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:25:41,660 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:25:41,676 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:25:41,678 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:25:41,704 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:25:41,706 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:25:41,744 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:25:41,746 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:25:41,797 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:25:41,798 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:25:41,857 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:25:41,858 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:25:41,976 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:25:41,977 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:25:42,119 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 29 [2021-03-11 14:25:42,122 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:25:42,123 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:25:42,236 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:25:42,238 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:25:42,353 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:25:42,354 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:25:42,458 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:25:42,458 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [540684246] [2021-03-11 14:25:42,458 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:25:42,459 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:25:42,459 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1943901568] [2021-03-11 14:25:42,459 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:25:42,459 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:25:42,459 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:25:42,459 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:25:42,459 INFO L87 Difference]: Start difference. First operand 3116 states and 15543 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:25:42,895 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 38 [2021-03-11 14:25:42,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:25:42,936 INFO L93 Difference]: Finished difference Result 6006 states and 26778 transitions. [2021-03-11 14:25:42,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:25:42,939 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:25:42,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:25:42,953 INFO L225 Difference]: With dead ends: 6006 [2021-03-11 14:25:42,953 INFO L226 Difference]: Without dead ends: 5989 [2021-03-11 14:25:42,953 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 943.3ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:25:43,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5989 states. [2021-03-11 14:25:43,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5989 to 3129. [2021-03-11 14:25:43,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3129 states, 3128 states have (on average 4.9808184143222505) internal successors, (15580), 3128 states have internal predecessors, (15580), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:25:43,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3129 states to 3129 states and 15580 transitions. [2021-03-11 14:25:43,094 INFO L78 Accepts]: Start accepts. Automaton has 3129 states and 15580 transitions. Word has length 31 [2021-03-11 14:25:43,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:25:43,094 INFO L480 AbstractCegarLoop]: Abstraction has 3129 states and 15580 transitions. [2021-03-11 14:25:43,094 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:25:43,094 INFO L276 IsEmpty]: Start isEmpty. Operand 3129 states and 15580 transitions. [2021-03-11 14:25:43,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:25:43,099 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:25:43,099 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:25:43,099 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable627 [2021-03-11 14:25:43,099 INFO L428 AbstractCegarLoop]: === Iteration 629 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:25:43,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:25:43,099 INFO L82 PathProgramCache]: Analyzing trace with hash 1596934839, now seen corresponding path program 620 times [2021-03-11 14:25:43,099 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:25:43,099 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [357216238] [2021-03-11 14:25:43,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:25:43,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:25:43,112 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:25:43,113 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:25:43,114 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:25:43,115 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:25:43,132 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:25:43,133 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:25:43,160 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:25:43,161 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:25:43,200 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:25:43,201 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:25:43,254 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:25:43,255 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:25:43,314 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:25:43,315 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:25:43,432 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:25:43,433 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:25:43,569 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 29 [2021-03-11 14:25:43,572 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:25:43,573 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:25:43,666 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:25:43,667 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:25:43,775 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:25:43,777 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:25:43,876 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:25:43,876 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [357216238] [2021-03-11 14:25:43,876 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:25:43,876 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:25:43,876 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1695415548] [2021-03-11 14:25:43,876 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:25:43,877 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:25:43,877 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:25:43,877 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:25:43,877 INFO L87 Difference]: Start difference. First operand 3129 states and 15580 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:25:44,465 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 38 [2021-03-11 14:25:44,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:25:44,505 INFO L93 Difference]: Finished difference Result 6007 states and 26774 transitions. [2021-03-11 14:25:44,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:25:44,509 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:25:44,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:25:44,522 INFO L225 Difference]: With dead ends: 6007 [2021-03-11 14:25:44,522 INFO L226 Difference]: Without dead ends: 5983 [2021-03-11 14:25:44,522 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 890.2ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:25:44,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5983 states. [2021-03-11 14:25:44,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5983 to 3123. [2021-03-11 14:25:44,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3123 states, 3122 states have (on average 4.984945547725816) internal successors, (15563), 3122 states have internal predecessors, (15563), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:25:44,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3123 states to 3123 states and 15563 transitions. [2021-03-11 14:25:44,659 INFO L78 Accepts]: Start accepts. Automaton has 3123 states and 15563 transitions. Word has length 31 [2021-03-11 14:25:44,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:25:44,659 INFO L480 AbstractCegarLoop]: Abstraction has 3123 states and 15563 transitions. [2021-03-11 14:25:44,659 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:25:44,660 INFO L276 IsEmpty]: Start isEmpty. Operand 3123 states and 15563 transitions. [2021-03-11 14:25:44,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:25:44,664 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:25:44,664 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:25:44,664 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable628 [2021-03-11 14:25:44,664 INFO L428 AbstractCegarLoop]: === Iteration 630 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:25:44,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:25:44,665 INFO L82 PathProgramCache]: Analyzing trace with hash 1805439437, now seen corresponding path program 621 times [2021-03-11 14:25:44,665 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:25:44,665 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1191064498] [2021-03-11 14:25:44,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:25:44,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:25:44,676 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:25:44,678 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:25:44,679 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:25:44,680 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:25:44,694 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:25:44,695 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:25:44,720 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:25:44,721 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:25:44,757 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:25:44,758 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:25:44,804 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:25:44,805 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:25:44,866 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:25:44,867 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:25:44,983 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:25:44,984 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:25:45,125 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 29 [2021-03-11 14:25:45,128 INFO L142 QuantifierPusher]: treesize reduction 54, result has 55.4 percent of original size [2021-03-11 14:25:45,130 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-03-11 14:25:45,296 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 32 [2021-03-11 14:25:45,299 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:25:45,300 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:25:45,410 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:25:45,411 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:25:45,512 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:25:45,513 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1191064498] [2021-03-11 14:25:45,513 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:25:45,513 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:25:45,513 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [468727311] [2021-03-11 14:25:45,513 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:25:45,513 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:25:45,513 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:25:45,513 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:25:45,513 INFO L87 Difference]: Start difference. First operand 3123 states and 15563 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:25:45,961 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 38 [2021-03-11 14:25:46,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:25:46,006 INFO L93 Difference]: Finished difference Result 6011 states and 26781 transitions. [2021-03-11 14:25:46,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:25:46,010 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:25:46,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:25:46,023 INFO L225 Difference]: With dead ends: 6011 [2021-03-11 14:25:46,023 INFO L226 Difference]: Without dead ends: 5994 [2021-03-11 14:25:46,023 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 983.8ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:25:46,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5994 states. [2021-03-11 14:25:46,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5994 to 3130. [2021-03-11 14:25:46,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3130 states, 3129 states have (on average 4.977948226270374) internal successors, (15576), 3129 states have internal predecessors, (15576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:25:46,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3130 states to 3130 states and 15576 transitions. [2021-03-11 14:25:46,164 INFO L78 Accepts]: Start accepts. Automaton has 3130 states and 15576 transitions. Word has length 31 [2021-03-11 14:25:46,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:25:46,164 INFO L480 AbstractCegarLoop]: Abstraction has 3130 states and 15576 transitions. [2021-03-11 14:25:46,164 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:25:46,164 INFO L276 IsEmpty]: Start isEmpty. Operand 3130 states and 15576 transitions. [2021-03-11 14:25:46,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:25:46,169 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:25:46,169 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:25:46,170 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable629 [2021-03-11 14:25:46,170 INFO L428 AbstractCegarLoop]: === Iteration 631 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:25:46,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:25:46,170 INFO L82 PathProgramCache]: Analyzing trace with hash -306989193, now seen corresponding path program 622 times [2021-03-11 14:25:46,170 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:25:46,170 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1432116788] [2021-03-11 14:25:46,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:25:46,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:25:46,182 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:25:46,183 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:25:46,185 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:25:46,186 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:25:46,204 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:25:46,205 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:25:46,235 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:25:46,237 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:25:46,280 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:25:46,281 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:25:46,337 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:25:46,338 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:25:46,407 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:25:46,408 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:25:46,538 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 27 DAG size of output: 25 [2021-03-11 14:25:46,541 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:25:46,542 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:25:46,678 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 29 [2021-03-11 14:25:46,681 INFO L142 QuantifierPusher]: treesize reduction 54, result has 55.4 percent of original size [2021-03-11 14:25:46,682 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-03-11 14:25:46,861 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 32 [2021-03-11 14:25:46,864 INFO L142 QuantifierPusher]: treesize reduction 72, result has 49.7 percent of original size [2021-03-11 14:25:46,865 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-03-11 14:25:46,994 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:25:46,996 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:25:47,113 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:25:47,113 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1432116788] [2021-03-11 14:25:47,113 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:25:47,113 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:25:47,113 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1538081682] [2021-03-11 14:25:47,113 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:25:47,113 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:25:47,113 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:25:47,113 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:25:47,114 INFO L87 Difference]: Start difference. First operand 3130 states and 15576 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:25:47,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:25:47,517 INFO L93 Difference]: Finished difference Result 6016 states and 26784 transitions. [2021-03-11 14:25:47,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:25:47,520 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:25:47,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:25:47,533 INFO L225 Difference]: With dead ends: 6016 [2021-03-11 14:25:47,533 INFO L226 Difference]: Without dead ends: 5987 [2021-03-11 14:25:47,533 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 984.2ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:25:47,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5987 states. [2021-03-11 14:25:47,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5987 to 3123. [2021-03-11 14:25:47,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3123 states, 3122 states have (on average 4.982703395259449) internal successors, (15556), 3122 states have internal predecessors, (15556), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:25:47,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3123 states to 3123 states and 15556 transitions. [2021-03-11 14:25:47,669 INFO L78 Accepts]: Start accepts. Automaton has 3123 states and 15556 transitions. Word has length 31 [2021-03-11 14:25:47,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:25:47,669 INFO L480 AbstractCegarLoop]: Abstraction has 3123 states and 15556 transitions. [2021-03-11 14:25:47,669 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:25:47,669 INFO L276 IsEmpty]: Start isEmpty. Operand 3123 states and 15556 transitions. [2021-03-11 14:25:47,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:25:47,674 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:25:47,674 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:25:47,674 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable630 [2021-03-11 14:25:47,674 INFO L428 AbstractCegarLoop]: === Iteration 632 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:25:47,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:25:47,674 INFO L82 PathProgramCache]: Analyzing trace with hash 536156749, now seen corresponding path program 623 times [2021-03-11 14:25:47,674 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:25:47,674 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [73758982] [2021-03-11 14:25:47,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:25:47,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:25:47,692 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:25:47,693 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:25:47,695 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:25:47,696 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:25:47,715 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:25:47,716 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:25:47,748 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:25:47,750 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:25:47,795 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:25:47,797 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:25:47,857 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:25:47,859 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:25:47,931 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:25:47,933 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:25:48,077 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 27 DAG size of output: 25 [2021-03-11 14:25:48,080 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:25:48,082 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:25:48,242 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 29 [2021-03-11 14:25:48,245 INFO L142 QuantifierPusher]: treesize reduction 54, result has 55.4 percent of original size [2021-03-11 14:25:48,246 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-03-11 14:25:48,405 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 33 [2021-03-11 14:25:48,408 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:25:48,410 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:25:48,520 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:25:48,522 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:25:48,620 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:25:48,620 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [73758982] [2021-03-11 14:25:48,620 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:25:48,620 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:25:48,620 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1102934277] [2021-03-11 14:25:48,620 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:25:48,620 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:25:48,621 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:25:48,621 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:25:48,621 INFO L87 Difference]: Start difference. First operand 3123 states and 15556 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:25:49,045 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 38 [2021-03-11 14:25:49,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:25:49,087 INFO L93 Difference]: Finished difference Result 6014 states and 26781 transitions. [2021-03-11 14:25:49,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:25:49,091 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:25:49,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:25:49,104 INFO L225 Difference]: With dead ends: 6014 [2021-03-11 14:25:49,104 INFO L226 Difference]: Without dead ends: 5996 [2021-03-11 14:25:49,104 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 1053.6ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:25:49,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5996 states. [2021-03-11 14:25:49,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5996 to 3131. [2021-03-11 14:25:49,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3131 states, 3130 states have (on average 4.974760383386582) internal successors, (15571), 3130 states have internal predecessors, (15571), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:25:49,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3131 states to 3131 states and 15571 transitions. [2021-03-11 14:25:49,239 INFO L78 Accepts]: Start accepts. Automaton has 3131 states and 15571 transitions. Word has length 31 [2021-03-11 14:25:49,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:25:49,239 INFO L480 AbstractCegarLoop]: Abstraction has 3131 states and 15571 transitions. [2021-03-11 14:25:49,239 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:25:49,239 INFO L276 IsEmpty]: Start isEmpty. Operand 3131 states and 15571 transitions. [2021-03-11 14:25:49,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:25:49,244 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:25:49,244 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:25:49,244 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable631 [2021-03-11 14:25:49,244 INFO L428 AbstractCegarLoop]: === Iteration 633 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:25:49,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:25:49,244 INFO L82 PathProgramCache]: Analyzing trace with hash -731300429, now seen corresponding path program 624 times [2021-03-11 14:25:49,244 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:25:49,244 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1586759191] [2021-03-11 14:25:49,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:25:49,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:25:49,256 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:25:49,257 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:25:49,258 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:25:49,260 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:25:49,274 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:25:49,275 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:25:49,300 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:25:49,301 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:25:49,338 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:25:49,339 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:25:49,388 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:25:49,389 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:25:49,448 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:25:49,449 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:25:49,565 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:25:49,567 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:25:49,707 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 29 [2021-03-11 14:25:49,710 INFO L142 QuantifierPusher]: treesize reduction 54, result has 55.4 percent of original size [2021-03-11 14:25:49,711 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-03-11 14:25:49,872 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 33 [2021-03-11 14:25:49,875 INFO L142 QuantifierPusher]: treesize reduction 72, result has 49.7 percent of original size [2021-03-11 14:25:49,876 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-03-11 14:25:49,992 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:25:49,993 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:25:50,093 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:25:50,094 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1586759191] [2021-03-11 14:25:50,094 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:25:50,094 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:25:50,094 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1043030791] [2021-03-11 14:25:50,094 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:25:50,094 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:25:50,094 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:25:50,094 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:25:50,094 INFO L87 Difference]: Start difference. First operand 3131 states and 15571 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:25:50,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:25:50,506 INFO L93 Difference]: Finished difference Result 6018 states and 26781 transitions. [2021-03-11 14:25:50,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:25:50,510 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:25:50,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:25:50,523 INFO L225 Difference]: With dead ends: 6018 [2021-03-11 14:25:50,523 INFO L226 Difference]: Without dead ends: 5975 [2021-03-11 14:25:50,524 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 895.6ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:25:50,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5975 states. [2021-03-11 14:25:50,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5975 to 3110. [2021-03-11 14:25:50,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3110 states, 3109 states have (on average 4.993888710196204) internal successors, (15526), 3109 states have internal predecessors, (15526), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:25:50,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3110 states to 3110 states and 15526 transitions. [2021-03-11 14:25:50,663 INFO L78 Accepts]: Start accepts. Automaton has 3110 states and 15526 transitions. Word has length 31 [2021-03-11 14:25:50,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:25:50,664 INFO L480 AbstractCegarLoop]: Abstraction has 3110 states and 15526 transitions. [2021-03-11 14:25:50,664 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:25:50,664 INFO L276 IsEmpty]: Start isEmpty. Operand 3110 states and 15526 transitions. [2021-03-11 14:25:50,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:25:50,669 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:25:50,669 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:25:50,669 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable632 [2021-03-11 14:25:50,669 INFO L428 AbstractCegarLoop]: === Iteration 634 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:25:50,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:25:50,669 INFO L82 PathProgramCache]: Analyzing trace with hash -1846395101, now seen corresponding path program 625 times [2021-03-11 14:25:50,669 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:25:50,669 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2093464795] [2021-03-11 14:25:50,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:25:50,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:25:50,681 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:25:50,682 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:25:50,684 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:25:50,685 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:25:50,700 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:25:50,701 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:25:50,726 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:25:50,727 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:25:50,764 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:25:50,765 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:25:50,813 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:25:50,814 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:25:50,872 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:25:50,873 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:25:50,942 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:25:50,943 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:25:51,026 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:25:51,028 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:25:51,129 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:25:51,131 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:25:51,243 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:25:51,245 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:25:51,347 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:25:51,347 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2093464795] [2021-03-11 14:25:51,347 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:25:51,347 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:25:51,348 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1809102326] [2021-03-11 14:25:51,348 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:25:51,348 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:25:51,348 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:25:51,348 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:25:51,348 INFO L87 Difference]: Start difference. First operand 3110 states and 15526 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:25:51,792 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 38 [2021-03-11 14:25:51,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:25:51,829 INFO L93 Difference]: Finished difference Result 5979 states and 26725 transitions. [2021-03-11 14:25:51,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:25:51,832 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:25:51,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:25:51,845 INFO L225 Difference]: With dead ends: 5979 [2021-03-11 14:25:51,845 INFO L226 Difference]: Without dead ends: 5963 [2021-03-11 14:25:51,846 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 802.2ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:25:51,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5963 states. [2021-03-11 14:25:51,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5963 to 3125. [2021-03-11 14:25:51,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3125 states, 3124 states have (on average 4.986555697823303) internal successors, (15578), 3124 states have internal predecessors, (15578), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:25:51,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3125 states to 3125 states and 15578 transitions. [2021-03-11 14:25:51,981 INFO L78 Accepts]: Start accepts. Automaton has 3125 states and 15578 transitions. Word has length 31 [2021-03-11 14:25:51,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:25:51,981 INFO L480 AbstractCegarLoop]: Abstraction has 3125 states and 15578 transitions. [2021-03-11 14:25:51,981 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:25:51,981 INFO L276 IsEmpty]: Start isEmpty. Operand 3125 states and 15578 transitions. [2021-03-11 14:25:51,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:25:51,986 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:25:51,986 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:25:51,986 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable633 [2021-03-11 14:25:51,986 INFO L428 AbstractCegarLoop]: === Iteration 635 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:25:51,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:25:51,986 INFO L82 PathProgramCache]: Analyzing trace with hash 758629291, now seen corresponding path program 626 times [2021-03-11 14:25:51,986 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:25:51,986 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [653783020] [2021-03-11 14:25:51,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:25:51,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:25:51,998 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:25:51,999 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:25:52,000 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:25:52,001 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:25:52,016 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:25:52,017 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:25:52,042 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:25:52,043 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:25:52,078 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:25:52,080 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:25:52,127 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:25:52,128 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:25:52,187 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:25:52,188 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:25:52,258 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:25:52,259 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:25:52,342 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:25:52,344 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:25:52,445 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:25:52,446 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:25:52,558 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:25:52,560 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:25:52,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:25:52,661 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [653783020] [2021-03-11 14:25:52,661 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:25:52,661 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:25:52,661 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [55790755] [2021-03-11 14:25:52,661 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:25:52,661 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:25:52,661 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:25:52,661 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:25:52,661 INFO L87 Difference]: Start difference. First operand 3125 states and 15578 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:25:53,140 WARN L205 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 38 [2021-03-11 14:25:53,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:25:53,187 INFO L93 Difference]: Finished difference Result 5980 states and 26722 transitions. [2021-03-11 14:25:53,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:25:53,191 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:25:53,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:25:53,205 INFO L225 Difference]: With dead ends: 5980 [2021-03-11 14:25:53,205 INFO L226 Difference]: Without dead ends: 5958 [2021-03-11 14:25:53,205 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 823.5ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:25:53,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5958 states. [2021-03-11 14:25:53,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5958 to 3120. [2021-03-11 14:25:53,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3120 states, 3119 states have (on average 4.990060916960564) internal successors, (15564), 3119 states have internal predecessors, (15564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:25:53,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3120 states to 3120 states and 15564 transitions. [2021-03-11 14:25:53,343 INFO L78 Accepts]: Start accepts. Automaton has 3120 states and 15564 transitions. Word has length 31 [2021-03-11 14:25:53,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:25:53,343 INFO L480 AbstractCegarLoop]: Abstraction has 3120 states and 15564 transitions. [2021-03-11 14:25:53,343 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:25:53,343 INFO L276 IsEmpty]: Start isEmpty. Operand 3120 states and 15564 transitions. [2021-03-11 14:25:53,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:25:53,348 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:25:53,348 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:25:53,348 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable634 [2021-03-11 14:25:53,348 INFO L428 AbstractCegarLoop]: === Iteration 636 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:25:53,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:25:53,348 INFO L82 PathProgramCache]: Analyzing trace with hash 2024260959, now seen corresponding path program 627 times [2021-03-11 14:25:53,348 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:25:53,348 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1920012811] [2021-03-11 14:25:53,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:25:53,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:25:53,360 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:25:53,361 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:25:53,363 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:25:53,364 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:25:53,380 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:25:53,381 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:25:53,408 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:25:53,409 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:25:53,446 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:25:53,447 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:25:53,496 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:25:53,497 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:25:53,556 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:25:53,557 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:25:53,627 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:25:53,628 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:25:53,710 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:25:53,712 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:25:53,808 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:25:53,809 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:25:53,929 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:25:53,931 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:25:54,048 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:25:54,048 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1920012811] [2021-03-11 14:25:54,049 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:25:54,049 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:25:54,049 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [820488093] [2021-03-11 14:25:54,049 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:25:54,049 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:25:54,049 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:25:54,049 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:25:54,049 INFO L87 Difference]: Start difference. First operand 3120 states and 15564 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:25:54,480 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 38 [2021-03-11 14:25:54,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:25:54,515 INFO L93 Difference]: Finished difference Result 5980 states and 26722 transitions. [2021-03-11 14:25:54,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:25:54,518 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:25:54,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:25:54,531 INFO L225 Difference]: With dead ends: 5980 [2021-03-11 14:25:54,531 INFO L226 Difference]: Without dead ends: 5964 [2021-03-11 14:25:54,531 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 816.4ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:25:54,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5964 states. [2021-03-11 14:25:54,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5964 to 3125. [2021-03-11 14:25:54,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3125 states, 3124 states have (on average 4.984955185659411) internal successors, (15573), 3124 states have internal predecessors, (15573), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:25:54,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3125 states to 3125 states and 15573 transitions. [2021-03-11 14:25:54,666 INFO L78 Accepts]: Start accepts. Automaton has 3125 states and 15573 transitions. Word has length 31 [2021-03-11 14:25:54,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:25:54,666 INFO L480 AbstractCegarLoop]: Abstraction has 3125 states and 15573 transitions. [2021-03-11 14:25:54,666 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:25:54,666 INFO L276 IsEmpty]: Start isEmpty. Operand 3125 states and 15573 transitions. [2021-03-11 14:25:54,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:25:54,671 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:25:54,671 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:25:54,671 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable635 [2021-03-11 14:25:54,671 INFO L428 AbstractCegarLoop]: === Iteration 637 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:25:54,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:25:54,671 INFO L82 PathProgramCache]: Analyzing trace with hash -510653397, now seen corresponding path program 628 times [2021-03-11 14:25:54,671 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:25:54,671 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [835949219] [2021-03-11 14:25:54,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:25:54,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:25:54,683 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:25:54,684 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:25:54,685 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:25:54,686 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:25:54,701 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:25:54,702 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:25:54,726 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:25:54,727 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:25:54,763 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:25:54,764 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:25:54,811 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:25:54,812 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:25:54,869 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:25:54,871 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:25:54,941 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:25:54,943 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:25:55,026 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:25:55,027 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:25:55,128 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:25:55,129 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:25:55,247 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:25:55,248 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:25:55,353 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:25:55,353 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [835949219] [2021-03-11 14:25:55,353 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:25:55,353 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:25:55,353 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1263347230] [2021-03-11 14:25:55,353 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:25:55,353 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:25:55,353 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:25:55,353 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:25:55,354 INFO L87 Difference]: Start difference. First operand 3125 states and 15573 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:25:55,775 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 37 [2021-03-11 14:25:55,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:25:55,820 INFO L93 Difference]: Finished difference Result 5982 states and 26721 transitions. [2021-03-11 14:25:55,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:25:55,823 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:25:55,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:25:55,836 INFO L225 Difference]: With dead ends: 5982 [2021-03-11 14:25:55,836 INFO L226 Difference]: Without dead ends: 5959 [2021-03-11 14:25:55,836 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 799.4ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:25:55,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5959 states. [2021-03-11 14:25:55,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5959 to 3120. [2021-03-11 14:25:55,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3120 states, 3119 states have (on average 4.9884578390509775) internal successors, (15559), 3119 states have internal predecessors, (15559), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:25:55,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3120 states to 3120 states and 15559 transitions. [2021-03-11 14:25:55,970 INFO L78 Accepts]: Start accepts. Automaton has 3120 states and 15559 transitions. Word has length 31 [2021-03-11 14:25:55,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:25:55,970 INFO L480 AbstractCegarLoop]: Abstraction has 3120 states and 15559 transitions. [2021-03-11 14:25:55,970 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:25:55,970 INFO L276 IsEmpty]: Start isEmpty. Operand 3120 states and 15559 transitions. [2021-03-11 14:25:55,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:25:55,975 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:25:55,975 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:25:55,975 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable636 [2021-03-11 14:25:55,975 INFO L428 AbstractCegarLoop]: === Iteration 638 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:25:55,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:25:55,975 INFO L82 PathProgramCache]: Analyzing trace with hash -514304417, now seen corresponding path program 629 times [2021-03-11 14:25:55,975 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:25:55,975 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1651713811] [2021-03-11 14:25:55,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:25:55,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:25:55,987 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:25:55,988 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:25:55,989 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:25:55,990 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:25:56,005 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:25:56,006 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:25:56,032 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:25:56,033 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:25:56,071 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:25:56,072 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:25:56,121 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:25:56,122 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:25:56,180 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:25:56,181 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:25:56,251 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:25:56,252 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:25:56,333 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:25:56,335 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:25:56,431 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:25:56,432 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:25:56,545 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:25:56,546 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:25:56,646 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:25:56,646 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1651713811] [2021-03-11 14:25:56,646 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:25:56,646 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:25:56,646 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2044094407] [2021-03-11 14:25:56,646 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:25:56,646 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:25:56,646 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:25:56,647 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:25:56,647 INFO L87 Difference]: Start difference. First operand 3120 states and 15559 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:25:57,109 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 38 [2021-03-11 14:25:57,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:25:57,148 INFO L93 Difference]: Finished difference Result 5983 states and 26724 transitions. [2021-03-11 14:25:57,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:25:57,151 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:25:57,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:25:57,165 INFO L225 Difference]: With dead ends: 5983 [2021-03-11 14:25:57,165 INFO L226 Difference]: Without dead ends: 5966 [2021-03-11 14:25:57,165 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 792.8ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:25:57,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5966 states. [2021-03-11 14:25:57,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5966 to 3126. [2021-03-11 14:25:57,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3126 states, 3125 states have (on average 4.9824) internal successors, (15570), 3125 states have internal predecessors, (15570), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:25:57,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3126 states to 3126 states and 15570 transitions. [2021-03-11 14:25:57,301 INFO L78 Accepts]: Start accepts. Automaton has 3126 states and 15570 transitions. Word has length 31 [2021-03-11 14:25:57,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:25:57,301 INFO L480 AbstractCegarLoop]: Abstraction has 3126 states and 15570 transitions. [2021-03-11 14:25:57,301 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:25:57,301 INFO L276 IsEmpty]: Start isEmpty. Operand 3126 states and 15570 transitions. [2021-03-11 14:25:57,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:25:57,306 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:25:57,306 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:25:57,306 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable637 [2021-03-11 14:25:57,306 INFO L428 AbstractCegarLoop]: === Iteration 639 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:25:57,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:25:57,306 INFO L82 PathProgramCache]: Analyzing trace with hash -1359275869, now seen corresponding path program 630 times [2021-03-11 14:25:57,306 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:25:57,306 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [235469714] [2021-03-11 14:25:57,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:25:57,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:25:57,323 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:25:57,324 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:25:57,325 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:25:57,326 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:25:57,341 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:25:57,342 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:25:57,367 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:25:57,368 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:25:57,404 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:25:57,405 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:25:57,452 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:25:57,453 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:25:57,516 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:25:57,517 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:25:57,587 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:25:57,588 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:25:57,670 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:25:57,671 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:25:57,767 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:25:57,768 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:25:57,881 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:25:57,883 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:25:57,987 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:25:57,987 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [235469714] [2021-03-11 14:25:57,987 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:25:57,987 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:25:57,987 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [434646972] [2021-03-11 14:25:57,987 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:25:57,987 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:25:57,987 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:25:57,987 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:25:57,988 INFO L87 Difference]: Start difference. First operand 3126 states and 15570 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:25:58,597 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 38 [2021-03-11 14:25:58,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:25:58,642 INFO L93 Difference]: Finished difference Result 5984 states and 26720 transitions. [2021-03-11 14:25:58,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:25:58,645 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:25:58,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:25:58,658 INFO L225 Difference]: With dead ends: 5984 [2021-03-11 14:25:58,658 INFO L226 Difference]: Without dead ends: 5955 [2021-03-11 14:25:58,658 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 792.0ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:25:58,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5955 states. [2021-03-11 14:25:58,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5955 to 3115. [2021-03-11 14:25:58,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3115 states, 3114 states have (on average 4.991971740526654) internal successors, (15545), 3114 states have internal predecessors, (15545), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:25:58,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3115 states to 3115 states and 15545 transitions. [2021-03-11 14:25:58,793 INFO L78 Accepts]: Start accepts. Automaton has 3115 states and 15545 transitions. Word has length 31 [2021-03-11 14:25:58,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:25:58,793 INFO L480 AbstractCegarLoop]: Abstraction has 3115 states and 15545 transitions. [2021-03-11 14:25:58,793 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:25:58,793 INFO L276 IsEmpty]: Start isEmpty. Operand 3115 states and 15545 transitions. [2021-03-11 14:25:58,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:25:58,798 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:25:58,798 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:25:58,798 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable638 [2021-03-11 14:25:58,798 INFO L428 AbstractCegarLoop]: === Iteration 640 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:25:58,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:25:58,799 INFO L82 PathProgramCache]: Analyzing trace with hash 1911079339, now seen corresponding path program 631 times [2021-03-11 14:25:58,800 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:25:58,800 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [167189713] [2021-03-11 14:25:58,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:25:58,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:25:58,815 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:25:58,816 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:25:58,817 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:25:58,818 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:25:58,833 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:25:58,834 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:25:58,859 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:25:58,860 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:25:58,896 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:25:58,898 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:25:58,945 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:25:58,946 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:25:59,005 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:25:59,006 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:25:59,075 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:25:59,077 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:25:59,157 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:25:59,158 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:25:59,255 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:25:59,256 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:25:59,366 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:25:59,368 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:25:59,467 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:25:59,467 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [167189713] [2021-03-11 14:25:59,467 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:25:59,467 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:25:59,467 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [398626650] [2021-03-11 14:25:59,467 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:25:59,467 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:25:59,468 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:25:59,468 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:25:59,468 INFO L87 Difference]: Start difference. First operand 3115 states and 15545 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:26:00,055 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 37 [2021-03-11 14:26:00,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:26:00,101 INFO L93 Difference]: Finished difference Result 5980 states and 26722 transitions. [2021-03-11 14:26:00,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:26:00,105 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:26:00,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:26:00,118 INFO L225 Difference]: With dead ends: 5980 [2021-03-11 14:26:00,118 INFO L226 Difference]: Without dead ends: 5964 [2021-03-11 14:26:00,119 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 786.1ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:26:00,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5964 states. [2021-03-11 14:26:00,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5964 to 3125. [2021-03-11 14:26:00,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3125 states, 3124 states have (on average 4.984955185659411) internal successors, (15573), 3124 states have internal predecessors, (15573), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:26:00,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3125 states to 3125 states and 15573 transitions. [2021-03-11 14:26:00,254 INFO L78 Accepts]: Start accepts. Automaton has 3125 states and 15573 transitions. Word has length 31 [2021-03-11 14:26:00,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:26:00,254 INFO L480 AbstractCegarLoop]: Abstraction has 3125 states and 15573 transitions. [2021-03-11 14:26:00,254 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:26:00,254 INFO L276 IsEmpty]: Start isEmpty. Operand 3125 states and 15573 transitions. [2021-03-11 14:26:00,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:26:00,259 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:26:00,259 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:26:00,259 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable639 [2021-03-11 14:26:00,259 INFO L428 AbstractCegarLoop]: === Iteration 641 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:26:00,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:26:00,260 INFO L82 PathProgramCache]: Analyzing trace with hash 221136435, now seen corresponding path program 632 times [2021-03-11 14:26:00,260 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:26:00,260 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1138003381] [2021-03-11 14:26:00,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:26:00,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:26:00,272 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:26:00,273 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:26:00,274 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:26:00,275 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:26:00,290 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:26:00,292 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:26:00,317 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:26:00,318 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:26:00,355 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:26:00,356 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:26:00,412 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:26:00,414 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:26:00,480 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:26:00,481 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:26:00,561 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:26:00,563 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:26:00,655 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:26:00,656 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:26:00,760 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:26:00,761 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:26:00,878 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:26:00,880 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:26:00,990 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:26:00,990 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1138003381] [2021-03-11 14:26:00,990 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:26:00,990 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:26:00,990 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1050819913] [2021-03-11 14:26:00,991 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:26:00,991 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:26:00,991 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:26:00,991 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:26:00,991 INFO L87 Difference]: Start difference. First operand 3125 states and 15573 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:26:01,480 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 38 [2021-03-11 14:26:01,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:26:01,528 INFO L93 Difference]: Finished difference Result 5981 states and 26719 transitions. [2021-03-11 14:26:01,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:26:01,531 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:26:01,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:26:01,544 INFO L225 Difference]: With dead ends: 5981 [2021-03-11 14:26:01,545 INFO L226 Difference]: Without dead ends: 5959 [2021-03-11 14:26:01,545 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 853.9ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:26:01,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5959 states. [2021-03-11 14:26:01,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5959 to 3120. [2021-03-11 14:26:01,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3120 states, 3119 states have (on average 4.9884578390509775) internal successors, (15559), 3119 states have internal predecessors, (15559), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:26:01,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3120 states to 3120 states and 15559 transitions. [2021-03-11 14:26:01,679 INFO L78 Accepts]: Start accepts. Automaton has 3120 states and 15559 transitions. Word has length 31 [2021-03-11 14:26:01,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:26:01,679 INFO L480 AbstractCegarLoop]: Abstraction has 3120 states and 15559 transitions. [2021-03-11 14:26:01,679 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:26:01,679 INFO L276 IsEmpty]: Start isEmpty. Operand 3120 states and 15559 transitions. [2021-03-11 14:26:01,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:26:01,684 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:26:01,684 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:26:01,684 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable640 [2021-03-11 14:26:01,684 INFO L428 AbstractCegarLoop]: === Iteration 642 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:26:01,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:26:01,684 INFO L82 PathProgramCache]: Analyzing trace with hash 638145631, now seen corresponding path program 633 times [2021-03-11 14:26:01,684 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:26:01,685 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [553476772] [2021-03-11 14:26:01,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:26:01,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:26:01,696 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:26:01,698 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:26:01,699 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:26:01,700 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:26:01,715 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:26:01,716 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:26:01,742 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:26:01,743 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:26:01,780 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:26:01,782 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:26:01,832 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:26:01,833 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:26:01,896 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:26:01,897 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:26:01,970 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:26:01,972 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:26:02,055 INFO L142 QuantifierPusher]: treesize reduction 45, result has 59.1 percent of original size [2021-03-11 14:26:02,057 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:26:02,220 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 31 [2021-03-11 14:26:02,223 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:26:02,224 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:26:02,340 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:26:02,341 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:26:02,448 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:26:02,448 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [553476772] [2021-03-11 14:26:02,448 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:26:02,448 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:26:02,448 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [351030927] [2021-03-11 14:26:02,448 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:26:02,448 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:26:02,449 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:26:02,449 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:26:02,449 INFO L87 Difference]: Start difference. First operand 3120 states and 15559 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:26:03,104 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 37 [2021-03-11 14:26:03,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:26:03,149 INFO L93 Difference]: Finished difference Result 5982 states and 26721 transitions. [2021-03-11 14:26:03,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:26:03,152 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:26:03,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:26:03,165 INFO L225 Difference]: With dead ends: 5982 [2021-03-11 14:26:03,165 INFO L226 Difference]: Without dead ends: 5966 [2021-03-11 14:26:03,165 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 881.7ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:26:03,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5966 states. [2021-03-11 14:26:03,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5966 to 3125. [2021-03-11 14:26:03,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3125 states, 3124 states have (on average 4.983354673495518) internal successors, (15568), 3124 states have internal predecessors, (15568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:26:03,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3125 states to 3125 states and 15568 transitions. [2021-03-11 14:26:03,299 INFO L78 Accepts]: Start accepts. Automaton has 3125 states and 15568 transitions. Word has length 31 [2021-03-11 14:26:03,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:26:03,299 INFO L480 AbstractCegarLoop]: Abstraction has 3125 states and 15568 transitions. [2021-03-11 14:26:03,299 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:26:03,299 INFO L276 IsEmpty]: Start isEmpty. Operand 3125 states and 15568 transitions. [2021-03-11 14:26:03,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:26:03,304 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:26:03,304 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:26:03,304 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable641 [2021-03-11 14:26:03,304 INFO L428 AbstractCegarLoop]: === Iteration 643 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:26:03,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:26:03,304 INFO L82 PathProgramCache]: Analyzing trace with hash 708255667, now seen corresponding path program 634 times [2021-03-11 14:26:03,304 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:26:03,304 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1536460522] [2021-03-11 14:26:03,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:26:03,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:26:03,316 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:26:03,317 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:26:03,318 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:26:03,319 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:26:03,334 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:26:03,335 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:26:03,361 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:26:03,362 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:26:03,398 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:26:03,399 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:26:03,449 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:26:03,450 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:26:03,511 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:26:03,512 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:26:03,583 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:26:03,584 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:26:03,666 INFO L142 QuantifierPusher]: treesize reduction 45, result has 59.1 percent of original size [2021-03-11 14:26:03,668 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:26:03,823 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 31 [2021-03-11 14:26:03,826 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:26:03,828 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:26:03,942 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:26:03,943 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:26:04,045 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:26:04,045 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1536460522] [2021-03-11 14:26:04,045 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:26:04,045 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:26:04,045 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1143892201] [2021-03-11 14:26:04,045 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:26:04,046 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:26:04,046 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:26:04,046 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:26:04,046 INFO L87 Difference]: Start difference. First operand 3125 states and 15568 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:26:04,528 WARN L205 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 40 [2021-03-11 14:26:04,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:26:04,572 INFO L93 Difference]: Finished difference Result 5985 states and 26722 transitions. [2021-03-11 14:26:04,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:26:04,576 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:26:04,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:26:04,590 INFO L225 Difference]: With dead ends: 5985 [2021-03-11 14:26:04,590 INFO L226 Difference]: Without dead ends: 5961 [2021-03-11 14:26:04,590 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 880.5ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:26:04,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5961 states. [2021-03-11 14:26:04,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5961 to 3120. [2021-03-11 14:26:04,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3120 states, 3119 states have (on average 4.986854761141392) internal successors, (15554), 3119 states have internal predecessors, (15554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:26:04,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3120 states to 3120 states and 15554 transitions. [2021-03-11 14:26:04,726 INFO L78 Accepts]: Start accepts. Automaton has 3120 states and 15554 transitions. Word has length 31 [2021-03-11 14:26:04,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:26:04,726 INFO L480 AbstractCegarLoop]: Abstraction has 3120 states and 15554 transitions. [2021-03-11 14:26:04,726 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:26:04,727 INFO L276 IsEmpty]: Start isEmpty. Operand 3120 states and 15554 transitions. [2021-03-11 14:26:04,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:26:04,731 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:26:04,731 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:26:04,731 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable642 [2021-03-11 14:26:04,731 INFO L428 AbstractCegarLoop]: === Iteration 644 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:26:04,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:26:04,731 INFO L82 PathProgramCache]: Analyzing trace with hash -1900419745, now seen corresponding path program 635 times [2021-03-11 14:26:04,732 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:26:04,732 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [366096916] [2021-03-11 14:26:04,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:26:04,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:26:04,743 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:26:04,744 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:26:04,746 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:26:04,747 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:26:04,762 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:26:04,763 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:26:04,788 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:26:04,789 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:26:04,826 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:26:04,827 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:26:04,875 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:26:04,876 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:26:04,935 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:26:04,936 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:26:05,010 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:26:05,012 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:26:05,094 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:26:05,095 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:26:05,195 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:26:05,196 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:26:05,329 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:26:05,330 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:26:05,442 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:26:05,442 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [366096916] [2021-03-11 14:26:05,442 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:26:05,443 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:26:05,443 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1635274580] [2021-03-11 14:26:05,443 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:26:05,443 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:26:05,443 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:26:05,443 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:26:05,443 INFO L87 Difference]: Start difference. First operand 3120 states and 15554 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:26:05,870 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 38 [2021-03-11 14:26:05,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:26:05,909 INFO L93 Difference]: Finished difference Result 5985 states and 26723 transitions. [2021-03-11 14:26:05,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:26:05,912 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:26:05,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:26:05,925 INFO L225 Difference]: With dead ends: 5985 [2021-03-11 14:26:05,925 INFO L226 Difference]: Without dead ends: 5968 [2021-03-11 14:26:05,925 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 833.6ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:26:06,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5968 states. [2021-03-11 14:26:06,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5968 to 3126. [2021-03-11 14:26:06,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3126 states, 3125 states have (on average 4.9808) internal successors, (15565), 3125 states have internal predecessors, (15565), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:26:06,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3126 states to 3126 states and 15565 transitions. [2021-03-11 14:26:06,065 INFO L78 Accepts]: Start accepts. Automaton has 3126 states and 15565 transitions. Word has length 31 [2021-03-11 14:26:06,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:26:06,065 INFO L480 AbstractCegarLoop]: Abstraction has 3126 states and 15565 transitions. [2021-03-11 14:26:06,065 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:26:06,065 INFO L276 IsEmpty]: Start isEmpty. Operand 3126 states and 15565 transitions. [2021-03-11 14:26:06,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:26:06,070 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:26:06,070 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:26:06,070 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable643 [2021-03-11 14:26:06,070 INFO L428 AbstractCegarLoop]: === Iteration 645 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:26:06,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:26:06,070 INFO L82 PathProgramCache]: Analyzing trace with hash -140366805, now seen corresponding path program 636 times [2021-03-11 14:26:06,070 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:26:06,070 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1965692343] [2021-03-11 14:26:06,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:26:06,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:26:06,082 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:26:06,083 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:26:06,084 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:26:06,086 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:26:06,101 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:26:06,103 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:26:06,128 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:26:06,129 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:26:06,165 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:26:06,167 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:26:06,215 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:26:06,217 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:26:06,276 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:26:06,277 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:26:06,348 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:26:06,349 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:26:06,430 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:26:06,432 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:26:06,527 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:26:06,529 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:26:06,643 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:26:06,644 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:26:06,747 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:26:06,747 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1965692343] [2021-03-11 14:26:06,747 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:26:06,747 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:26:06,747 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2140517302] [2021-03-11 14:26:06,747 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:26:06,747 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:26:06,747 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:26:06,747 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:26:06,748 INFO L87 Difference]: Start difference. First operand 3126 states and 15565 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:26:07,300 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 40 [2021-03-11 14:26:07,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:26:07,345 INFO L93 Difference]: Finished difference Result 5987 states and 26721 transitions. [2021-03-11 14:26:07,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:26:07,348 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:26:07,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:26:07,361 INFO L225 Difference]: With dead ends: 5987 [2021-03-11 14:26:07,361 INFO L226 Difference]: Without dead ends: 5957 [2021-03-11 14:26:07,361 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 813.0ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:26:07,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5957 states. [2021-03-11 14:26:07,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5957 to 3115. [2021-03-11 14:26:07,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3115 states, 3114 states have (on average 4.990366088631984) internal successors, (15540), 3114 states have internal predecessors, (15540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:26:07,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3115 states to 3115 states and 15540 transitions. [2021-03-11 14:26:07,495 INFO L78 Accepts]: Start accepts. Automaton has 3115 states and 15540 transitions. Word has length 31 [2021-03-11 14:26:07,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:26:07,495 INFO L480 AbstractCegarLoop]: Abstraction has 3115 states and 15540 transitions. [2021-03-11 14:26:07,495 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:26:07,496 INFO L276 IsEmpty]: Start isEmpty. Operand 3115 states and 15540 transitions. [2021-03-11 14:26:07,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:26:07,500 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:26:07,500 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:26:07,500 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable644 [2021-03-11 14:26:07,500 INFO L428 AbstractCegarLoop]: === Iteration 646 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:26:07,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:26:07,500 INFO L82 PathProgramCache]: Analyzing trace with hash 1218021675, now seen corresponding path program 637 times [2021-03-11 14:26:07,501 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:26:07,501 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [648097494] [2021-03-11 14:26:07,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:26:07,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:26:07,513 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:26:07,514 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:26:07,515 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:26:07,516 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:26:07,531 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:26:07,532 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:26:07,558 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:26:07,560 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:26:07,597 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:26:07,598 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:26:07,647 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:26:07,648 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:26:07,710 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:26:07,711 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:26:07,783 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:26:07,785 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:26:07,869 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:26:07,870 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:26:07,966 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:26:07,967 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:26:08,082 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:26:08,084 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:26:08,199 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:26:08,199 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [648097494] [2021-03-11 14:26:08,199 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:26:08,199 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:26:08,199 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [402328172] [2021-03-11 14:26:08,199 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:26:08,199 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:26:08,199 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:26:08,199 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:26:08,199 INFO L87 Difference]: Start difference. First operand 3115 states and 15540 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:26:08,614 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 38 [2021-03-11 14:26:08,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:26:08,650 INFO L93 Difference]: Finished difference Result 5983 states and 26724 transitions. [2021-03-11 14:26:08,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:26:08,653 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:26:08,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:26:08,666 INFO L225 Difference]: With dead ends: 5983 [2021-03-11 14:26:08,666 INFO L226 Difference]: Without dead ends: 5967 [2021-03-11 14:26:08,666 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 817.0ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:26:08,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5967 states. [2021-03-11 14:26:08,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5967 to 3125. [2021-03-11 14:26:08,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3125 states, 3124 states have (on average 4.983354673495518) internal successors, (15568), 3124 states have internal predecessors, (15568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:26:08,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3125 states to 3125 states and 15568 transitions. [2021-03-11 14:26:08,801 INFO L78 Accepts]: Start accepts. Automaton has 3125 states and 15568 transitions. Word has length 31 [2021-03-11 14:26:08,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:26:08,801 INFO L480 AbstractCegarLoop]: Abstraction has 3125 states and 15568 transitions. [2021-03-11 14:26:08,801 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:26:08,801 INFO L276 IsEmpty]: Start isEmpty. Operand 3125 states and 15568 transitions. [2021-03-11 14:26:08,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:26:08,806 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:26:08,806 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:26:08,806 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable645 [2021-03-11 14:26:08,806 INFO L428 AbstractCegarLoop]: === Iteration 647 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:26:08,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:26:08,806 INFO L82 PathProgramCache]: Analyzing trace with hash -1316892681, now seen corresponding path program 638 times [2021-03-11 14:26:08,806 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:26:08,806 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1020383146] [2021-03-11 14:26:08,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:26:08,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:26:08,818 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:26:08,819 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:26:08,820 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:26:08,822 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:26:08,837 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:26:08,838 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:26:08,870 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:26:08,871 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:26:08,916 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:26:08,918 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:26:08,978 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:26:08,979 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:26:09,039 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:26:09,041 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:26:09,113 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:26:09,115 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:26:09,200 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:26:09,201 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:26:09,306 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:26:09,307 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:26:09,442 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:26:09,444 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:26:09,573 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:26:09,573 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1020383146] [2021-03-11 14:26:09,573 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:26:09,573 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:26:09,573 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1155099551] [2021-03-11 14:26:09,573 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:26:09,573 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:26:09,573 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:26:09,573 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:26:09,573 INFO L87 Difference]: Start difference. First operand 3125 states and 15568 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:26:10,056 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 37 [2021-03-11 14:26:10,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:26:10,100 INFO L93 Difference]: Finished difference Result 5985 states and 26723 transitions. [2021-03-11 14:26:10,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:26:10,104 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:26:10,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:26:10,117 INFO L225 Difference]: With dead ends: 5985 [2021-03-11 14:26:10,117 INFO L226 Difference]: Without dead ends: 5962 [2021-03-11 14:26:10,117 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 888.7ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:26:10,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5962 states. [2021-03-11 14:26:10,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5962 to 3120. [2021-03-11 14:26:10,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3120 states, 3119 states have (on average 4.986854761141392) internal successors, (15554), 3119 states have internal predecessors, (15554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:26:10,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3120 states to 3120 states and 15554 transitions. [2021-03-11 14:26:10,254 INFO L78 Accepts]: Start accepts. Automaton has 3120 states and 15554 transitions. Word has length 31 [2021-03-11 14:26:10,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:26:10,254 INFO L480 AbstractCegarLoop]: Abstraction has 3120 states and 15554 transitions. [2021-03-11 14:26:10,254 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:26:10,254 INFO L276 IsEmpty]: Start isEmpty. Operand 3120 states and 15554 transitions. [2021-03-11 14:26:10,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:26:10,258 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:26:10,258 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:26:10,259 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable646 [2021-03-11 14:26:10,259 INFO L428 AbstractCegarLoop]: === Iteration 648 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:26:10,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:26:10,259 INFO L82 PathProgramCache]: Analyzing trace with hash 369399203, now seen corresponding path program 639 times [2021-03-11 14:26:10,259 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:26:10,259 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1581409174] [2021-03-11 14:26:10,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:26:10,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:26:10,271 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:26:10,272 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:26:10,273 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:26:10,274 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:26:10,290 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:26:10,291 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:26:10,317 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:26:10,318 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:26:10,355 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:26:10,357 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:26:10,406 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:26:10,408 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:26:10,469 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:26:10,470 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:26:10,543 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:26:10,545 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:26:10,630 INFO L142 QuantifierPusher]: treesize reduction 45, result has 59.1 percent of original size [2021-03-11 14:26:10,631 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:26:10,794 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 31 [2021-03-11 14:26:10,797 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:26:10,799 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:26:10,918 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:26:10,920 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:26:11,030 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:26:11,030 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1581409174] [2021-03-11 14:26:11,030 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:26:11,030 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:26:11,030 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102374736] [2021-03-11 14:26:11,030 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:26:11,030 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:26:11,030 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:26:11,030 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:26:11,031 INFO L87 Difference]: Start difference. First operand 3120 states and 15554 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:26:11,562 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 38 [2021-03-11 14:26:11,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:26:11,599 INFO L93 Difference]: Finished difference Result 5984 states and 26721 transitions. [2021-03-11 14:26:11,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:26:11,602 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:26:11,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:26:11,615 INFO L225 Difference]: With dead ends: 5984 [2021-03-11 14:26:11,615 INFO L226 Difference]: Without dead ends: 5968 [2021-03-11 14:26:11,616 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 897.2ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:26:11,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5968 states. [2021-03-11 14:26:11,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5968 to 3125. [2021-03-11 14:26:11,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3125 states, 3124 states have (on average 4.981754161331626) internal successors, (15563), 3124 states have internal predecessors, (15563), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:26:11,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3125 states to 3125 states and 15563 transitions. [2021-03-11 14:26:11,753 INFO L78 Accepts]: Start accepts. Automaton has 3125 states and 15563 transitions. Word has length 31 [2021-03-11 14:26:11,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:26:11,753 INFO L480 AbstractCegarLoop]: Abstraction has 3125 states and 15563 transitions. [2021-03-11 14:26:11,753 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:26:11,753 INFO L276 IsEmpty]: Start isEmpty. Operand 3125 states and 15563 transitions. [2021-03-11 14:26:11,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:26:11,758 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:26:11,758 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:26:11,758 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable647 [2021-03-11 14:26:11,758 INFO L428 AbstractCegarLoop]: === Iteration 649 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:26:11,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:26:11,758 INFO L82 PathProgramCache]: Analyzing trace with hash 439509239, now seen corresponding path program 640 times [2021-03-11 14:26:11,758 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:26:11,758 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [676373038] [2021-03-11 14:26:11,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:26:11,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:26:11,770 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:26:11,771 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:26:11,772 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:26:11,774 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:26:11,791 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:26:11,792 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:26:11,818 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:26:11,819 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:26:11,857 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:26:11,858 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:26:11,909 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:26:11,910 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:26:11,972 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:26:11,973 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:26:12,047 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:26:12,048 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:26:12,138 INFO L142 QuantifierPusher]: treesize reduction 45, result has 59.1 percent of original size [2021-03-11 14:26:12,140 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:26:12,323 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 31 [2021-03-11 14:26:12,327 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:26:12,328 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:26:12,449 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:26:12,451 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:26:12,555 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:26:12,556 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [676373038] [2021-03-11 14:26:12,556 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:26:12,556 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:26:12,556 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [45329822] [2021-03-11 14:26:12,556 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:26:12,556 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:26:12,556 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:26:12,556 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:26:12,556 INFO L87 Difference]: Start difference. First operand 3125 states and 15563 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:26:13,065 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 39 [2021-03-11 14:26:13,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:26:13,114 INFO L93 Difference]: Finished difference Result 5987 states and 26722 transitions. [2021-03-11 14:26:13,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:26:13,118 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:26:13,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:26:13,132 INFO L225 Difference]: With dead ends: 5987 [2021-03-11 14:26:13,132 INFO L226 Difference]: Without dead ends: 5963 [2021-03-11 14:26:13,132 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 940.7ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:26:13,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5963 states. [2021-03-11 14:26:13,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5963 to 3120. [2021-03-11 14:26:13,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3120 states, 3119 states have (on average 4.985251683231805) internal successors, (15549), 3119 states have internal predecessors, (15549), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:26:13,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3120 states to 3120 states and 15549 transitions. [2021-03-11 14:26:13,271 INFO L78 Accepts]: Start accepts. Automaton has 3120 states and 15549 transitions. Word has length 31 [2021-03-11 14:26:13,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:26:13,271 INFO L480 AbstractCegarLoop]: Abstraction has 3120 states and 15549 transitions. [2021-03-11 14:26:13,271 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:26:13,271 INFO L276 IsEmpty]: Start isEmpty. Operand 3120 states and 15549 transitions. [2021-03-11 14:26:13,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:26:13,275 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:26:13,276 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:26:13,276 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable648 [2021-03-11 14:26:13,276 INFO L428 AbstractCegarLoop]: === Iteration 650 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:26:13,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:26:13,276 INFO L82 PathProgramCache]: Analyzing trace with hash 856518435, now seen corresponding path program 641 times [2021-03-11 14:26:13,276 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:26:13,276 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1206070723] [2021-03-11 14:26:13,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:26:13,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:26:13,288 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:26:13,289 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:26:13,290 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:26:13,292 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:26:13,309 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:26:13,310 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:26:13,336 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:26:13,337 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:26:13,375 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:26:13,376 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:26:13,428 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:26:13,429 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:26:13,492 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:26:13,493 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:26:13,568 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:26:13,570 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:26:13,653 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:26:13,654 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:26:13,757 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:26:13,759 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:26:13,880 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:26:13,881 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:26:13,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:26:13,986 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1206070723] [2021-03-11 14:26:13,987 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:26:13,987 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:26:13,987 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [685010428] [2021-03-11 14:26:13,987 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:26:13,987 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:26:13,987 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:26:13,987 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:26:13,987 INFO L87 Difference]: Start difference. First operand 3120 states and 15549 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:26:14,442 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 37 [2021-03-11 14:26:14,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:26:14,479 INFO L93 Difference]: Finished difference Result 5990 states and 26730 transitions. [2021-03-11 14:26:14,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:26:14,483 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:26:14,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:26:14,495 INFO L225 Difference]: With dead ends: 5990 [2021-03-11 14:26:14,496 INFO L226 Difference]: Without dead ends: 5972 [2021-03-11 14:26:14,496 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 830.1ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:26:14,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5972 states. [2021-03-11 14:26:14,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5972 to 3127. [2021-03-11 14:26:14,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3127 states, 3126 states have (on average 4.978246960972489) internal successors, (15562), 3126 states have internal predecessors, (15562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:26:14,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3127 states to 3127 states and 15562 transitions. [2021-03-11 14:26:14,631 INFO L78 Accepts]: Start accepts. Automaton has 3127 states and 15562 transitions. Word has length 31 [2021-03-11 14:26:14,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:26:14,631 INFO L480 AbstractCegarLoop]: Abstraction has 3127 states and 15562 transitions. [2021-03-11 14:26:14,631 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:26:14,632 INFO L276 IsEmpty]: Start isEmpty. Operand 3127 states and 15562 transitions. [2021-03-11 14:26:14,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:26:14,636 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:26:14,636 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:26:14,636 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable649 [2021-03-11 14:26:14,636 INFO L428 AbstractCegarLoop]: === Iteration 651 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:26:14,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:26:14,637 INFO L82 PathProgramCache]: Analyzing trace with hash -833424469, now seen corresponding path program 642 times [2021-03-11 14:26:14,637 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:26:14,637 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1542240156] [2021-03-11 14:26:14,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:26:14,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:26:14,648 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:26:14,650 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:26:14,651 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:26:14,652 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:26:14,667 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:26:14,668 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:26:14,694 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:26:14,695 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:26:14,733 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:26:14,734 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:26:14,784 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:26:14,785 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:26:14,846 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:26:14,847 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:26:14,920 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:26:14,922 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:26:15,006 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:26:15,007 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:26:15,112 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:26:15,113 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:26:15,235 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:26:15,237 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:26:15,341 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:26:15,341 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1542240156] [2021-03-11 14:26:15,341 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:26:15,341 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:26:15,341 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1097890802] [2021-03-11 14:26:15,341 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:26:15,341 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:26:15,342 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:26:15,342 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:26:15,342 INFO L87 Difference]: Start difference. First operand 3127 states and 15562 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:26:15,809 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 39 [2021-03-11 14:26:15,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:26:15,861 INFO L93 Difference]: Finished difference Result 5991 states and 26725 transitions. [2021-03-11 14:26:15,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:26:15,864 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:26:15,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:26:15,877 INFO L225 Difference]: With dead ends: 5991 [2021-03-11 14:26:15,877 INFO L226 Difference]: Without dead ends: 5960 [2021-03-11 14:26:15,877 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 834.4ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:26:15,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5960 states. [2021-03-11 14:26:16,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5960 to 3115. [2021-03-11 14:26:16,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3115 states, 3114 states have (on average 4.988760436737316) internal successors, (15535), 3114 states have internal predecessors, (15535), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:26:16,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3115 states to 3115 states and 15535 transitions. [2021-03-11 14:26:16,015 INFO L78 Accepts]: Start accepts. Automaton has 3115 states and 15535 transitions. Word has length 31 [2021-03-11 14:26:16,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:26:16,015 INFO L480 AbstractCegarLoop]: Abstraction has 3115 states and 15535 transitions. [2021-03-11 14:26:16,015 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:26:16,015 INFO L276 IsEmpty]: Start isEmpty. Operand 3115 states and 15535 transitions. [2021-03-11 14:26:16,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:26:16,020 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:26:16,020 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:26:16,020 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable650 [2021-03-11 14:26:16,020 INFO L428 AbstractCegarLoop]: === Iteration 652 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:26:16,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:26:16,020 INFO L82 PathProgramCache]: Analyzing trace with hash -1858036557, now seen corresponding path program 643 times [2021-03-11 14:26:16,020 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:26:16,021 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1938677414] [2021-03-11 14:26:16,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:26:16,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:26:16,032 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:26:16,034 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:26:16,035 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:26:16,036 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:26:16,053 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:26:16,054 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:26:16,081 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:26:16,083 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:26:16,123 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:26:16,124 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:26:16,178 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:26:16,179 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:26:16,247 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:26:16,248 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:26:16,323 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:26:16,324 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:26:16,413 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:26:16,415 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:26:16,516 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:26:16,517 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:26:16,634 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:26:16,635 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:26:16,739 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:26:16,739 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1938677414] [2021-03-11 14:26:16,739 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:26:16,739 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:26:16,739 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2048894474] [2021-03-11 14:26:16,739 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:26:16,739 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:26:16,739 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:26:16,739 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:26:16,740 INFO L87 Difference]: Start difference. First operand 3115 states and 15535 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:26:17,325 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 38 [2021-03-11 14:26:17,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:26:17,364 INFO L93 Difference]: Finished difference Result 5990 states and 26738 transitions. [2021-03-11 14:26:17,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:26:17,368 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:26:17,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:26:17,381 INFO L225 Difference]: With dead ends: 5990 [2021-03-11 14:26:17,381 INFO L226 Difference]: Without dead ends: 5973 [2021-03-11 14:26:17,381 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 858.0ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:26:17,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5973 states. [2021-03-11 14:26:17,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5973 to 3127. [2021-03-11 14:26:17,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3127 states, 3126 states have (on average 4.980486244401791) internal successors, (15569), 3126 states have internal predecessors, (15569), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:26:17,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3127 states to 3127 states and 15569 transitions. [2021-03-11 14:26:17,516 INFO L78 Accepts]: Start accepts. Automaton has 3127 states and 15569 transitions. Word has length 31 [2021-03-11 14:26:17,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:26:17,516 INFO L480 AbstractCegarLoop]: Abstraction has 3127 states and 15569 transitions. [2021-03-11 14:26:17,516 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:26:17,516 INFO L276 IsEmpty]: Start isEmpty. Operand 3127 states and 15569 transitions. [2021-03-11 14:26:17,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:26:17,521 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:26:17,521 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:26:17,521 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable651 [2021-03-11 14:26:17,521 INFO L428 AbstractCegarLoop]: === Iteration 653 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:26:17,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:26:17,521 INFO L82 PathProgramCache]: Analyzing trace with hash 1591959287, now seen corresponding path program 644 times [2021-03-11 14:26:17,521 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:26:17,521 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1456769354] [2021-03-11 14:26:17,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:26:17,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:26:17,533 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:26:17,534 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:26:17,535 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:26:17,537 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:26:17,552 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:26:17,553 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:26:17,579 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:26:17,580 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:26:17,618 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:26:17,619 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:26:17,671 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:26:17,673 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:26:17,737 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:26:17,738 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:26:17,812 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:26:17,813 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:26:17,900 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:26:17,902 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:26:18,001 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:26:18,002 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:26:18,126 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:26:18,127 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:26:18,233 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:26:18,233 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1456769354] [2021-03-11 14:26:18,233 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:26:18,233 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:26:18,233 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [735518893] [2021-03-11 14:26:18,233 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:26:18,233 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:26:18,234 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:26:18,234 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:26:18,234 INFO L87 Difference]: Start difference. First operand 3127 states and 15569 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:26:18,695 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 38 [2021-03-11 14:26:18,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:26:18,739 INFO L93 Difference]: Finished difference Result 5991 states and 26734 transitions. [2021-03-11 14:26:18,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:26:18,743 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:26:18,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:26:18,757 INFO L225 Difference]: With dead ends: 5991 [2021-03-11 14:26:18,757 INFO L226 Difference]: Without dead ends: 5967 [2021-03-11 14:26:18,757 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 833.6ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:26:18,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5967 states. [2021-03-11 14:26:18,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5967 to 3121. [2021-03-11 14:26:18,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3121 states, 3120 states have (on average 4.984615384615385) internal successors, (15552), 3120 states have internal predecessors, (15552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:26:18,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3121 states to 3121 states and 15552 transitions. [2021-03-11 14:26:18,896 INFO L78 Accepts]: Start accepts. Automaton has 3121 states and 15552 transitions. Word has length 31 [2021-03-11 14:26:18,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:26:18,896 INFO L480 AbstractCegarLoop]: Abstraction has 3121 states and 15552 transitions. [2021-03-11 14:26:18,896 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:26:18,896 INFO L276 IsEmpty]: Start isEmpty. Operand 3121 states and 15552 transitions. [2021-03-11 14:26:18,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:26:18,901 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:26:18,901 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:26:18,901 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable652 [2021-03-11 14:26:18,901 INFO L428 AbstractCegarLoop]: === Iteration 654 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:26:18,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:26:18,901 INFO L82 PathProgramCache]: Analyzing trace with hash 1588308267, now seen corresponding path program 645 times [2021-03-11 14:26:18,901 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:26:18,901 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2022798071] [2021-03-11 14:26:18,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:26:18,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:26:18,913 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:26:18,914 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:26:18,915 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:26:18,916 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:26:18,932 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:26:18,933 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:26:18,960 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:26:18,961 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:26:18,999 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:26:19,000 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:26:19,056 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:26:19,057 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:26:19,127 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:26:19,129 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:26:19,211 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:26:19,212 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:26:19,307 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:26:19,308 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:26:19,408 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:26:19,409 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:26:19,528 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:26:19,529 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:26:19,651 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:26:19,652 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2022798071] [2021-03-11 14:26:19,652 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:26:19,652 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:26:19,652 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [781198142] [2021-03-11 14:26:19,652 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:26:19,652 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:26:19,652 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:26:19,652 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:26:19,652 INFO L87 Difference]: Start difference. First operand 3121 states and 15552 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:26:20,306 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 38 [2021-03-11 14:26:20,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:26:20,346 INFO L93 Difference]: Finished difference Result 5991 states and 26734 transitions. [2021-03-11 14:26:20,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:26:20,350 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:26:20,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:26:20,363 INFO L225 Difference]: With dead ends: 5991 [2021-03-11 14:26:20,364 INFO L226 Difference]: Without dead ends: 5974 [2021-03-11 14:26:20,364 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 885.2ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:26:20,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5974 states. [2021-03-11 14:26:20,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5974 to 3127. [2021-03-11 14:26:20,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3127 states, 3126 states have (on average 4.978566858605246) internal successors, (15563), 3126 states have internal predecessors, (15563), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:26:20,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3127 states to 3127 states and 15563 transitions. [2021-03-11 14:26:20,505 INFO L78 Accepts]: Start accepts. Automaton has 3127 states and 15563 transitions. Word has length 31 [2021-03-11 14:26:20,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:26:20,506 INFO L480 AbstractCegarLoop]: Abstraction has 3127 states and 15563 transitions. [2021-03-11 14:26:20,506 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:26:20,506 INFO L276 IsEmpty]: Start isEmpty. Operand 3127 states and 15563 transitions. [2021-03-11 14:26:20,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:26:20,511 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:26:20,511 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:26:20,511 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable653 [2021-03-11 14:26:20,511 INFO L428 AbstractCegarLoop]: === Iteration 655 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:26:20,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:26:20,511 INFO L82 PathProgramCache]: Analyzing trace with hash -946606089, now seen corresponding path program 646 times [2021-03-11 14:26:20,511 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:26:20,511 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1304103459] [2021-03-11 14:26:20,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:26:20,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:26:20,523 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:26:20,525 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:26:20,526 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:26:20,528 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:26:20,545 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:26:20,547 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:26:20,576 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:26:20,577 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:26:20,617 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:26:20,619 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:26:20,672 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:26:20,673 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:26:20,736 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:26:20,737 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:26:20,813 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:26:20,814 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:26:20,902 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:26:20,904 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:26:21,007 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:26:21,008 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:26:21,131 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:26:21,133 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:26:21,240 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:26:21,241 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1304103459] [2021-03-11 14:26:21,241 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:26:21,241 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:26:21,241 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289355462] [2021-03-11 14:26:21,241 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:26:21,241 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:26:21,241 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:26:21,241 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:26:21,241 INFO L87 Difference]: Start difference. First operand 3127 states and 15563 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:26:21,841 WARN L205 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 40 [2021-03-11 14:26:21,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:26:21,893 INFO L93 Difference]: Finished difference Result 5993 states and 26732 transitions. [2021-03-11 14:26:21,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:26:21,897 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:26:21,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:26:21,911 INFO L225 Difference]: With dead ends: 5993 [2021-03-11 14:26:21,911 INFO L226 Difference]: Without dead ends: 5968 [2021-03-11 14:26:21,911 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 881.1ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:26:21,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5968 states. [2021-03-11 14:26:22,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5968 to 3121. [2021-03-11 14:26:22,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3121 states, 3120 states have (on average 4.982692307692307) internal successors, (15546), 3120 states have internal predecessors, (15546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:26:22,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3121 states to 3121 states and 15546 transitions. [2021-03-11 14:26:22,053 INFO L78 Accepts]: Start accepts. Automaton has 3121 states and 15546 transitions. Word has length 31 [2021-03-11 14:26:22,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:26:22,053 INFO L480 AbstractCegarLoop]: Abstraction has 3121 states and 15546 transitions. [2021-03-11 14:26:22,053 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:26:22,053 INFO L276 IsEmpty]: Start isEmpty. Operand 3121 states and 15546 transitions. [2021-03-11 14:26:22,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:26:22,058 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:26:22,058 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:26:22,058 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable654 [2021-03-11 14:26:22,058 INFO L428 AbstractCegarLoop]: === Iteration 656 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:26:22,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:26:22,058 INFO L82 PathProgramCache]: Analyzing trace with hash 319025579, now seen corresponding path program 647 times [2021-03-11 14:26:22,058 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:26:22,058 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [765051456] [2021-03-11 14:26:22,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:26:22,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:26:22,071 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:26:22,072 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:26:22,073 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:26:22,074 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:26:22,092 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:26:22,093 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:26:22,121 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:26:22,123 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:26:22,164 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:26:22,166 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:26:22,221 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:26:22,222 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:26:22,290 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:26:22,292 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:26:22,373 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:26:22,375 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:26:22,471 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:26:22,472 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:26:22,586 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:26:22,588 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:26:22,716 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:26:22,718 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:26:22,833 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:26:22,834 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [765051456] [2021-03-11 14:26:22,834 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:26:22,834 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:26:22,834 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [265065535] [2021-03-11 14:26:22,834 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:26:22,834 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:26:22,834 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:26:22,834 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:26:22,834 INFO L87 Difference]: Start difference. First operand 3121 states and 15546 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:26:23,326 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 38 [2021-03-11 14:26:23,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:26:23,369 INFO L93 Difference]: Finished difference Result 5994 states and 26735 transitions. [2021-03-11 14:26:23,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:26:23,372 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:26:23,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:26:23,386 INFO L225 Difference]: With dead ends: 5994 [2021-03-11 14:26:23,386 INFO L226 Difference]: Without dead ends: 5976 [2021-03-11 14:26:23,386 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 901.6ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:26:23,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5976 states. [2021-03-11 14:26:23,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5976 to 3128. [2021-03-11 14:26:23,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3128 states, 3127 states have (on average 4.975695554844899) internal successors, (15559), 3127 states have internal predecessors, (15559), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:26:23,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3128 states to 3128 states and 15559 transitions. [2021-03-11 14:26:23,523 INFO L78 Accepts]: Start accepts. Automaton has 3128 states and 15559 transitions. Word has length 31 [2021-03-11 14:26:23,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:26:23,523 INFO L480 AbstractCegarLoop]: Abstraction has 3128 states and 15559 transitions. [2021-03-11 14:26:23,523 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:26:23,523 INFO L276 IsEmpty]: Start isEmpty. Operand 3128 states and 15559 transitions. [2021-03-11 14:26:23,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:26:23,528 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:26:23,528 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:26:23,528 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable655 [2021-03-11 14:26:23,528 INFO L428 AbstractCegarLoop]: === Iteration 657 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:26:23,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:26:23,528 INFO L82 PathProgramCache]: Analyzing trace with hash -1370917325, now seen corresponding path program 648 times [2021-03-11 14:26:23,528 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:26:23,528 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1917840944] [2021-03-11 14:26:23,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:26:23,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:26:23,540 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:26:23,541 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:26:23,543 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:26:23,544 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:26:23,560 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:26:23,561 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:26:23,588 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:26:23,589 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:26:23,628 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:26:23,629 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:26:23,681 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:26:23,682 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:26:23,746 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:26:23,747 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:26:23,824 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:26:23,826 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:26:23,917 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:26:23,918 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:26:24,025 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:26:24,026 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:26:24,148 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:26:24,149 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:26:24,257 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:26:24,257 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1917840944] [2021-03-11 14:26:24,257 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:26:24,257 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:26:24,257 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [797067359] [2021-03-11 14:26:24,258 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:26:24,258 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:26:24,258 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:26:24,258 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:26:24,258 INFO L87 Difference]: Start difference. First operand 3128 states and 15559 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:26:24,884 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 40 [2021-03-11 14:26:24,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:26:24,938 INFO L93 Difference]: Finished difference Result 5995 states and 26730 transitions. [2021-03-11 14:26:24,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:26:24,941 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:26:24,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:26:24,954 INFO L225 Difference]: With dead ends: 5995 [2021-03-11 14:26:24,954 INFO L226 Difference]: Without dead ends: 5958 [2021-03-11 14:26:24,954 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 862.1ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:26:25,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5958 states. [2021-03-11 14:26:25,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5958 to 3110. [2021-03-11 14:26:25,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3110 states, 3109 states have (on average 4.992280476037311) internal successors, (15521), 3109 states have internal predecessors, (15521), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:26:25,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3110 states to 3110 states and 15521 transitions. [2021-03-11 14:26:25,090 INFO L78 Accepts]: Start accepts. Automaton has 3110 states and 15521 transitions. Word has length 31 [2021-03-11 14:26:25,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:26:25,090 INFO L480 AbstractCegarLoop]: Abstraction has 3110 states and 15521 transitions. [2021-03-11 14:26:25,090 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:26:25,090 INFO L276 IsEmpty]: Start isEmpty. Operand 3110 states and 15521 transitions. [2021-03-11 14:26:25,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:26:25,094 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:26:25,094 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:26:25,094 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable656 [2021-03-11 14:26:25,095 INFO L428 AbstractCegarLoop]: === Iteration 658 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:26:25,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:26:25,095 INFO L82 PathProgramCache]: Analyzing trace with hash -1861321757, now seen corresponding path program 649 times [2021-03-11 14:26:25,095 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:26:25,095 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1313639667] [2021-03-11 14:26:25,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:26:25,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:26:25,107 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:26:25,108 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:26:25,109 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:26:25,110 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:26:25,126 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:26:25,127 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:26:25,153 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:26:25,154 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:26:25,196 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:26:25,198 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:26:25,252 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:26:25,254 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:26:25,318 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:26:25,319 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:26:25,395 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:26:25,396 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:26:25,539 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 28 [2021-03-11 14:26:25,541 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:26:25,543 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:26:25,647 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:26:25,648 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:26:25,767 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:26:25,768 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:26:25,875 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:26:25,875 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1313639667] [2021-03-11 14:26:25,875 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:26:25,876 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:26:25,876 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [869981935] [2021-03-11 14:26:25,876 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:26:25,876 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:26:25,876 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:26:25,876 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:26:25,876 INFO L87 Difference]: Start difference. First operand 3110 states and 15521 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:26:26,369 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 37 [2021-03-11 14:26:26,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:26:26,408 INFO L93 Difference]: Finished difference Result 5998 states and 26763 transitions. [2021-03-11 14:26:26,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:26:26,412 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:26:26,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:26:26,425 INFO L225 Difference]: With dead ends: 5998 [2021-03-11 14:26:26,425 INFO L226 Difference]: Without dead ends: 5982 [2021-03-11 14:26:26,425 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 907.2ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:26:26,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5982 states. [2021-03-11 14:26:26,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5982 to 3127. [2021-03-11 14:26:26,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3127 states, 3126 states have (on average 4.984005118362124) internal successors, (15580), 3126 states have internal predecessors, (15580), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:26:26,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3127 states to 3127 states and 15580 transitions. [2021-03-11 14:26:26,564 INFO L78 Accepts]: Start accepts. Automaton has 3127 states and 15580 transitions. Word has length 31 [2021-03-11 14:26:26,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:26:26,564 INFO L480 AbstractCegarLoop]: Abstraction has 3127 states and 15580 transitions. [2021-03-11 14:26:26,564 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:26:26,564 INFO L276 IsEmpty]: Start isEmpty. Operand 3127 states and 15580 transitions. [2021-03-11 14:26:26,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:26:26,568 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:26:26,568 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:26:26,569 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable657 [2021-03-11 14:26:26,569 INFO L428 AbstractCegarLoop]: === Iteration 659 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:26:26,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:26:26,569 INFO L82 PathProgramCache]: Analyzing trace with hash 743702635, now seen corresponding path program 650 times [2021-03-11 14:26:26,569 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:26:26,569 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [136539821] [2021-03-11 14:26:26,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:26:26,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:26:26,581 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:26:26,582 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:26:26,583 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:26:26,585 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:26:26,601 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:26:26,602 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:26:26,628 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:26:26,629 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:26:26,668 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:26:26,669 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:26:26,720 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:26:26,721 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:26:26,783 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:26:26,785 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:26:26,859 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:26:26,860 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:26:27,008 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 28 [2021-03-11 14:26:27,011 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:26:27,012 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:26:27,120 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:26:27,122 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:26:27,247 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:26:27,248 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:26:27,354 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:26:27,354 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [136539821] [2021-03-11 14:26:27,354 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:26:27,354 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:26:27,354 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2039265436] [2021-03-11 14:26:27,355 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:26:27,355 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:26:27,355 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:26:27,355 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:26:27,355 INFO L87 Difference]: Start difference. First operand 3127 states and 15580 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:26:27,930 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 38 [2021-03-11 14:26:27,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:26:27,974 INFO L93 Difference]: Finished difference Result 5999 states and 26760 transitions. [2021-03-11 14:26:27,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:26:27,978 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:26:27,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:26:27,991 INFO L225 Difference]: With dead ends: 5999 [2021-03-11 14:26:27,991 INFO L226 Difference]: Without dead ends: 5977 [2021-03-11 14:26:27,991 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 914.5ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:26:28,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5977 states. [2021-03-11 14:26:28,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5977 to 3122. [2021-03-11 14:26:28,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3122 states, 3121 states have (on average 4.987504005126562) internal successors, (15566), 3121 states have internal predecessors, (15566), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:26:28,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3122 states to 3122 states and 15566 transitions. [2021-03-11 14:26:28,127 INFO L78 Accepts]: Start accepts. Automaton has 3122 states and 15566 transitions. Word has length 31 [2021-03-11 14:26:28,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:26:28,127 INFO L480 AbstractCegarLoop]: Abstraction has 3122 states and 15566 transitions. [2021-03-11 14:26:28,127 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:26:28,127 INFO L276 IsEmpty]: Start isEmpty. Operand 3122 states and 15566 transitions. [2021-03-11 14:26:28,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:26:28,132 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:26:28,132 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:26:28,132 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable658 [2021-03-11 14:26:28,132 INFO L428 AbstractCegarLoop]: === Iteration 660 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:26:28,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:26:28,132 INFO L82 PathProgramCache]: Analyzing trace with hash 1372867449, now seen corresponding path program 651 times [2021-03-11 14:26:28,132 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:26:28,132 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1725176276] [2021-03-11 14:26:28,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:26:28,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:26:28,150 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:26:28,151 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:26:28,152 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:26:28,154 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:26:28,174 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:26:28,176 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:26:28,210 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:26:28,211 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:26:28,258 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:26:28,260 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:26:28,320 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:26:28,321 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:26:28,384 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:26:28,385 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:26:28,462 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:26:28,463 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:26:28,617 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 28 [2021-03-11 14:26:28,620 INFO L142 QuantifierPusher]: treesize reduction 54, result has 55.4 percent of original size [2021-03-11 14:26:28,622 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-03-11 14:26:28,777 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 28 [2021-03-11 14:26:28,780 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:26:28,781 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:26:28,901 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:26:28,902 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:26:29,007 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:26:29,007 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1725176276] [2021-03-11 14:26:29,008 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:26:29,008 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:26:29,008 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [572127970] [2021-03-11 14:26:29,008 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:26:29,008 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:26:29,008 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:26:29,008 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:26:29,008 INFO L87 Difference]: Start difference. First operand 3122 states and 15566 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:26:29,770 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 37 [2021-03-11 14:26:29,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:26:29,819 INFO L93 Difference]: Finished difference Result 6004 states and 26769 transitions. [2021-03-11 14:26:29,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:26:29,823 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:26:29,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:26:29,836 INFO L225 Difference]: With dead ends: 6004 [2021-03-11 14:26:29,836 INFO L226 Difference]: Without dead ends: 5988 [2021-03-11 14:26:29,836 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 994.3ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:26:29,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5988 states. [2021-03-11 14:26:29,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5988 to 3128. [2021-03-11 14:26:29,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3128 states, 3127 states have (on average 4.981451870802687) internal successors, (15577), 3127 states have internal predecessors, (15577), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:26:29,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3128 states to 3128 states and 15577 transitions. [2021-03-11 14:26:29,971 INFO L78 Accepts]: Start accepts. Automaton has 3128 states and 15577 transitions. Word has length 31 [2021-03-11 14:26:29,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:26:29,971 INFO L480 AbstractCegarLoop]: Abstraction has 3128 states and 15577 transitions. [2021-03-11 14:26:29,971 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:26:29,971 INFO L276 IsEmpty]: Start isEmpty. Operand 3128 states and 15577 transitions. [2021-03-11 14:26:29,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:26:29,976 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:26:29,976 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:26:29,976 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable659 [2021-03-11 14:26:29,976 INFO L428 AbstractCegarLoop]: === Iteration 661 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:26:29,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:26:29,976 INFO L82 PathProgramCache]: Analyzing trace with hash 1865463211, now seen corresponding path program 652 times [2021-03-11 14:26:29,976 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:26:29,976 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1872387701] [2021-03-11 14:26:29,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:26:29,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:26:29,988 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:26:29,989 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:26:29,991 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:26:29,992 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:26:30,009 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:26:30,010 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:26:30,037 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:26:30,039 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:26:30,080 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:26:30,081 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:26:30,136 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:26:30,138 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:26:30,204 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:26:30,205 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:26:30,281 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:26:30,283 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:26:30,429 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 28 [2021-03-11 14:26:30,470 INFO L142 QuantifierPusher]: treesize reduction 54, result has 55.4 percent of original size [2021-03-11 14:26:30,472 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-03-11 14:26:30,623 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 28 [2021-03-11 14:26:30,626 INFO L142 QuantifierPusher]: treesize reduction 72, result has 49.7 percent of original size [2021-03-11 14:26:30,627 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-03-11 14:26:30,752 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:26:30,753 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:26:30,859 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:26:30,860 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1872387701] [2021-03-11 14:26:30,860 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:26:30,860 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:26:30,860 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1062710627] [2021-03-11 14:26:30,860 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:26:30,860 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:26:30,860 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:26:30,860 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:26:30,860 INFO L87 Difference]: Start difference. First operand 3128 states and 15577 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:26:31,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:26:31,633 INFO L93 Difference]: Finished difference Result 6010 states and 26775 transitions. [2021-03-11 14:26:31,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:26:31,637 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:26:31,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:26:31,650 INFO L225 Difference]: With dead ends: 6010 [2021-03-11 14:26:31,650 INFO L226 Difference]: Without dead ends: 5982 [2021-03-11 14:26:31,650 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 899.5ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:26:31,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5982 states. [2021-03-11 14:26:31,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5982 to 3122. [2021-03-11 14:26:31,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3122 states, 3121 states have (on average 4.985581544376802) internal successors, (15560), 3121 states have internal predecessors, (15560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:26:31,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3122 states to 3122 states and 15560 transitions. [2021-03-11 14:26:31,788 INFO L78 Accepts]: Start accepts. Automaton has 3122 states and 15560 transitions. Word has length 31 [2021-03-11 14:26:31,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:26:31,788 INFO L480 AbstractCegarLoop]: Abstraction has 3122 states and 15560 transitions. [2021-03-11 14:26:31,788 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:26:31,788 INFO L276 IsEmpty]: Start isEmpty. Operand 3122 states and 15560 transitions. [2021-03-11 14:26:31,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:26:31,793 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:26:31,793 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:26:31,793 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable660 [2021-03-11 14:26:31,793 INFO L428 AbstractCegarLoop]: === Iteration 662 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:26:31,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:26:31,793 INFO L82 PathProgramCache]: Analyzing trace with hash -1165697927, now seen corresponding path program 653 times [2021-03-11 14:26:31,793 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:26:31,793 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [146862899] [2021-03-11 14:26:31,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:26:31,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:26:31,805 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:26:31,806 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:26:31,808 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:26:31,809 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:26:31,825 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:26:31,826 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:26:31,854 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:26:31,855 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:26:31,895 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:26:31,897 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:26:31,950 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:26:31,951 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:26:32,017 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:26:32,018 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:26:32,095 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:26:32,097 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:26:32,252 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 28 [2021-03-11 14:26:32,255 INFO L142 QuantifierPusher]: treesize reduction 54, result has 55.4 percent of original size [2021-03-11 14:26:32,256 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-03-11 14:26:32,433 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 32 [2021-03-11 14:26:32,436 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:26:32,438 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:26:32,558 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:26:32,559 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:26:32,664 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:26:32,664 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [146862899] [2021-03-11 14:26:32,664 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:26:32,664 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:26:32,664 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1570742018] [2021-03-11 14:26:32,664 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:26:32,664 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:26:32,664 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:26:32,664 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:26:32,665 INFO L87 Difference]: Start difference. First operand 3122 states and 15560 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:26:33,413 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 38 [2021-03-11 14:26:33,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:26:33,460 INFO L93 Difference]: Finished difference Result 6007 states and 26770 transitions. [2021-03-11 14:26:33,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:26:33,464 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:26:33,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:26:33,477 INFO L225 Difference]: With dead ends: 6007 [2021-03-11 14:26:33,477 INFO L226 Difference]: Without dead ends: 5990 [2021-03-11 14:26:33,477 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 995.2ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:26:33,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5990 states. [2021-03-11 14:26:33,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5990 to 3129. [2021-03-11 14:26:33,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3129 states, 3128 states have (on average 4.978580562659847) internal successors, (15573), 3128 states have internal predecessors, (15573), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:26:33,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3129 states to 3129 states and 15573 transitions. [2021-03-11 14:26:33,611 INFO L78 Accepts]: Start accepts. Automaton has 3129 states and 15573 transitions. Word has length 31 [2021-03-11 14:26:33,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:26:33,611 INFO L480 AbstractCegarLoop]: Abstraction has 3129 states and 15573 transitions. [2021-03-11 14:26:33,611 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:26:33,611 INFO L276 IsEmpty]: Start isEmpty. Operand 3129 states and 15573 transitions. [2021-03-11 14:26:33,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:26:33,616 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:26:33,616 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:26:33,616 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable661 [2021-03-11 14:26:33,616 INFO L428 AbstractCegarLoop]: === Iteration 663 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:26:33,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:26:33,616 INFO L82 PathProgramCache]: Analyzing trace with hash 1016840739, now seen corresponding path program 654 times [2021-03-11 14:26:33,616 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:26:33,616 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1477274241] [2021-03-11 14:26:33,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:26:33,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:26:33,628 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:26:33,629 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:26:33,631 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:26:33,632 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:26:33,647 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:26:33,649 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:26:33,675 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:26:33,676 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:26:33,714 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:26:33,715 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:26:33,765 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:26:33,766 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:26:33,828 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:26:33,829 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:26:33,903 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:26:33,905 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:26:34,047 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 28 [2021-03-11 14:26:34,050 INFO L142 QuantifierPusher]: treesize reduction 54, result has 55.4 percent of original size [2021-03-11 14:26:34,051 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-03-11 14:26:34,216 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 32 [2021-03-11 14:26:34,220 INFO L142 QuantifierPusher]: treesize reduction 72, result has 49.7 percent of original size [2021-03-11 14:26:34,221 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-03-11 14:26:34,340 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:26:34,341 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:26:34,445 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:26:34,445 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1477274241] [2021-03-11 14:26:34,445 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:26:34,445 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:26:34,445 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1383940926] [2021-03-11 14:26:34,445 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:26:34,445 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:26:34,445 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:26:34,446 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:26:34,446 INFO L87 Difference]: Start difference. First operand 3129 states and 15573 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:26:35,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:26:35,007 INFO L93 Difference]: Finished difference Result 6012 states and 26773 transitions. [2021-03-11 14:26:35,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:26:35,011 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:26:35,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:26:35,024 INFO L225 Difference]: With dead ends: 6012 [2021-03-11 14:26:35,024 INFO L226 Difference]: Without dead ends: 5977 [2021-03-11 14:26:35,024 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 876.1ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:26:35,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5977 states. [2021-03-11 14:26:35,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5977 to 3116. [2021-03-11 14:26:35,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3116 states, 3115 states have (on average 4.989727126805779) internal successors, (15543), 3115 states have internal predecessors, (15543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:26:35,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3116 states to 3116 states and 15543 transitions. [2021-03-11 14:26:35,160 INFO L78 Accepts]: Start accepts. Automaton has 3116 states and 15543 transitions. Word has length 31 [2021-03-11 14:26:35,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:26:35,160 INFO L480 AbstractCegarLoop]: Abstraction has 3116 states and 15543 transitions. [2021-03-11 14:26:35,160 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:26:35,160 INFO L276 IsEmpty]: Start isEmpty. Operand 3116 states and 15543 transitions. [2021-03-11 14:26:35,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:26:35,165 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:26:35,165 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:26:35,165 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable662 [2021-03-11 14:26:35,165 INFO L428 AbstractCegarLoop]: === Iteration 664 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:26:35,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:26:35,165 INFO L82 PathProgramCache]: Analyzing trace with hash 151788677, now seen corresponding path program 655 times [2021-03-11 14:26:35,165 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:26:35,165 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1710499981] [2021-03-11 14:26:35,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:26:35,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:26:35,177 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:26:35,178 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:26:35,179 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:26:35,181 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:26:35,198 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:26:35,199 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:26:35,227 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:26:35,228 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:26:35,267 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:26:35,268 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:26:35,320 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:26:35,321 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:26:35,383 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:26:35,384 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:26:35,459 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:26:35,460 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:26:35,547 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:26:35,549 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:26:35,650 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:26:35,652 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:26:35,767 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:26:35,768 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:26:35,872 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:26:35,872 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1710499981] [2021-03-11 14:26:35,872 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:26:35,872 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:26:35,873 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1554834720] [2021-03-11 14:26:35,873 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:26:35,873 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:26:35,873 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:26:35,873 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:26:35,873 INFO L87 Difference]: Start difference. First operand 3116 states and 15543 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:26:36,391 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 37 [2021-03-11 14:26:36,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:26:36,430 INFO L93 Difference]: Finished difference Result 5992 states and 26745 transitions. [2021-03-11 14:26:36,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:26:36,433 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:26:36,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:26:36,446 INFO L225 Difference]: With dead ends: 5992 [2021-03-11 14:26:36,446 INFO L226 Difference]: Without dead ends: 5976 [2021-03-11 14:26:36,446 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 830.6ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:26:36,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5976 states. [2021-03-11 14:26:36,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5976 to 3126. [2021-03-11 14:26:36,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3126 states, 3125 states have (on average 4.98272) internal successors, (15571), 3125 states have internal predecessors, (15571), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:26:36,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3126 states to 3126 states and 15571 transitions. [2021-03-11 14:26:36,580 INFO L78 Accepts]: Start accepts. Automaton has 3126 states and 15571 transitions. Word has length 31 [2021-03-11 14:26:36,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:26:36,581 INFO L480 AbstractCegarLoop]: Abstraction has 3126 states and 15571 transitions. [2021-03-11 14:26:36,581 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:26:36,581 INFO L276 IsEmpty]: Start isEmpty. Operand 3126 states and 15571 transitions. [2021-03-11 14:26:36,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:26:36,585 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:26:36,585 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:26:36,585 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable663 [2021-03-11 14:26:36,585 INFO L428 AbstractCegarLoop]: === Iteration 665 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:26:36,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:26:36,586 INFO L82 PathProgramCache]: Analyzing trace with hash -1538154227, now seen corresponding path program 656 times [2021-03-11 14:26:36,586 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:26:36,586 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1937592202] [2021-03-11 14:26:36,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:26:36,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:26:36,597 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:26:36,599 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:26:36,600 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:26:36,601 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:26:36,617 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:26:36,618 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:26:36,644 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:26:36,645 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:26:36,685 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:26:36,686 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:26:36,738 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:26:36,739 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:26:36,802 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:26:36,803 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:26:36,879 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:26:36,880 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:26:36,966 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:26:36,968 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:26:37,070 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:26:37,071 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:26:37,188 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:26:37,189 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:26:37,294 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:26:37,294 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1937592202] [2021-03-11 14:26:37,294 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:26:37,294 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:26:37,294 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [659915398] [2021-03-11 14:26:37,294 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:26:37,294 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:26:37,294 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:26:37,294 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:26:37,295 INFO L87 Difference]: Start difference. First operand 3126 states and 15571 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:26:37,747 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 38 [2021-03-11 14:26:37,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:26:37,791 INFO L93 Difference]: Finished difference Result 5993 states and 26742 transitions. [2021-03-11 14:26:37,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:26:37,795 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:26:37,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:26:37,808 INFO L225 Difference]: With dead ends: 5993 [2021-03-11 14:26:37,808 INFO L226 Difference]: Without dead ends: 5971 [2021-03-11 14:26:37,808 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 836.3ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:26:37,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5971 states. [2021-03-11 14:26:37,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5971 to 3121. [2021-03-11 14:26:37,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3121 states, 3120 states have (on average 4.9862179487179485) internal successors, (15557), 3120 states have internal predecessors, (15557), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:26:37,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3121 states to 3121 states and 15557 transitions. [2021-03-11 14:26:37,944 INFO L78 Accepts]: Start accepts. Automaton has 3121 states and 15557 transitions. Word has length 31 [2021-03-11 14:26:37,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:26:37,944 INFO L480 AbstractCegarLoop]: Abstraction has 3121 states and 15557 transitions. [2021-03-11 14:26:37,945 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:26:37,945 INFO L276 IsEmpty]: Start isEmpty. Operand 3121 states and 15557 transitions. [2021-03-11 14:26:37,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:26:37,949 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:26:37,949 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:26:37,949 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable664 [2021-03-11 14:26:37,949 INFO L428 AbstractCegarLoop]: === Iteration 666 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:26:37,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:26:37,950 INFO L82 PathProgramCache]: Analyzing trace with hash -1121145031, now seen corresponding path program 657 times [2021-03-11 14:26:37,950 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:26:37,950 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [16317841] [2021-03-11 14:26:37,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:26:37,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:26:37,961 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:26:37,963 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:26:37,964 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:26:37,965 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:26:37,981 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:26:37,982 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:26:38,009 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:26:38,010 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:26:38,049 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:26:38,050 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:26:38,101 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:26:38,102 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:26:38,164 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:26:38,165 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:26:38,238 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:26:38,239 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:26:38,324 INFO L142 QuantifierPusher]: treesize reduction 45, result has 59.1 percent of original size [2021-03-11 14:26:38,325 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:26:38,489 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 31 [2021-03-11 14:26:38,492 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:26:38,493 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:26:38,610 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:26:38,612 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:26:38,718 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:26:38,719 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [16317841] [2021-03-11 14:26:38,719 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:26:38,719 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:26:38,719 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [956441964] [2021-03-11 14:26:38,719 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:26:38,719 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:26:38,719 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:26:38,719 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:26:38,719 INFO L87 Difference]: Start difference. First operand 3121 states and 15557 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:26:39,155 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 37 [2021-03-11 14:26:39,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:26:39,196 INFO L93 Difference]: Finished difference Result 5994 states and 26744 transitions. [2021-03-11 14:26:39,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:26:39,200 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:26:39,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:26:39,214 INFO L225 Difference]: With dead ends: 5994 [2021-03-11 14:26:39,214 INFO L226 Difference]: Without dead ends: 5978 [2021-03-11 14:26:39,214 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 897.5ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:26:39,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5978 states. [2021-03-11 14:26:39,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5978 to 3126. [2021-03-11 14:26:39,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3126 states, 3125 states have (on average 4.98112) internal successors, (15566), 3125 states have internal predecessors, (15566), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:26:39,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3126 states to 3126 states and 15566 transitions. [2021-03-11 14:26:39,351 INFO L78 Accepts]: Start accepts. Automaton has 3126 states and 15566 transitions. Word has length 31 [2021-03-11 14:26:39,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:26:39,351 INFO L480 AbstractCegarLoop]: Abstraction has 3126 states and 15566 transitions. [2021-03-11 14:26:39,351 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:26:39,351 INFO L276 IsEmpty]: Start isEmpty. Operand 3126 states and 15566 transitions. [2021-03-11 14:26:39,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:26:39,356 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:26:39,356 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:26:39,356 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable665 [2021-03-11 14:26:39,356 INFO L428 AbstractCegarLoop]: === Iteration 667 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:26:39,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:26:39,356 INFO L82 PathProgramCache]: Analyzing trace with hash -1051034995, now seen corresponding path program 658 times [2021-03-11 14:26:39,356 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:26:39,356 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [426258236] [2021-03-11 14:26:39,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:26:39,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:26:39,368 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:26:39,369 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:26:39,370 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:26:39,372 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:26:39,388 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:26:39,389 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:26:39,416 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:26:39,417 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:26:39,456 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:26:39,457 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:26:39,509 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:26:39,510 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:26:39,573 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:26:39,574 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:26:39,650 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:26:39,652 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:26:39,740 INFO L142 QuantifierPusher]: treesize reduction 45, result has 59.1 percent of original size [2021-03-11 14:26:39,742 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:26:39,910 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 31 [2021-03-11 14:26:39,913 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:26:39,915 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:26:40,038 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:26:40,039 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:26:40,147 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:26:40,147 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [426258236] [2021-03-11 14:26:40,147 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:26:40,147 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:26:40,147 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1504767730] [2021-03-11 14:26:40,147 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:26:40,147 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:26:40,147 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:26:40,147 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:26:40,148 INFO L87 Difference]: Start difference. First operand 3126 states and 15566 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:26:40,658 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 40 [2021-03-11 14:26:40,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:26:40,708 INFO L93 Difference]: Finished difference Result 5997 states and 26745 transitions. [2021-03-11 14:26:40,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:26:40,712 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:26:40,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:26:40,725 INFO L225 Difference]: With dead ends: 5997 [2021-03-11 14:26:40,725 INFO L226 Difference]: Without dead ends: 5973 [2021-03-11 14:26:40,725 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 932.0ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:26:40,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5973 states. [2021-03-11 14:26:40,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5973 to 3121. [2021-03-11 14:26:40,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3121 states, 3120 states have (on average 4.984615384615385) internal successors, (15552), 3120 states have internal predecessors, (15552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:26:40,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3121 states to 3121 states and 15552 transitions. [2021-03-11 14:26:40,860 INFO L78 Accepts]: Start accepts. Automaton has 3121 states and 15552 transitions. Word has length 31 [2021-03-11 14:26:40,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:26:40,860 INFO L480 AbstractCegarLoop]: Abstraction has 3121 states and 15552 transitions. [2021-03-11 14:26:40,860 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:26:40,860 INFO L276 IsEmpty]: Start isEmpty. Operand 3121 states and 15552 transitions. [2021-03-11 14:26:40,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:26:40,865 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:26:40,865 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:26:40,865 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable666 [2021-03-11 14:26:40,865 INFO L428 AbstractCegarLoop]: === Iteration 668 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:26:40,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:26:40,865 INFO L82 PathProgramCache]: Analyzing trace with hash 635256889, now seen corresponding path program 659 times [2021-03-11 14:26:40,865 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:26:40,865 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [873878755] [2021-03-11 14:26:40,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:26:40,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:26:40,877 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:26:40,878 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:26:40,880 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:26:40,881 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:26:40,897 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:26:40,899 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:26:40,926 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:26:40,927 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:26:40,968 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:26:40,969 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:26:41,024 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:26:41,025 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:26:41,090 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:26:41,092 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:26:41,168 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:26:41,169 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:26:41,257 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:26:41,259 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:26:41,363 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:26:41,364 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:26:41,486 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:26:41,488 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:26:41,598 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:26:41,598 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [873878755] [2021-03-11 14:26:41,598 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:26:41,598 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:26:41,598 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1116984759] [2021-03-11 14:26:41,599 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:26:41,599 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:26:41,599 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:26:41,599 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:26:41,599 INFO L87 Difference]: Start difference. First operand 3121 states and 15552 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:26:42,070 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 38 [2021-03-11 14:26:42,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:26:42,114 INFO L93 Difference]: Finished difference Result 5997 states and 26746 transitions. [2021-03-11 14:26:42,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:26:42,118 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:26:42,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:26:42,132 INFO L225 Difference]: With dead ends: 5997 [2021-03-11 14:26:42,132 INFO L226 Difference]: Without dead ends: 5980 [2021-03-11 14:26:42,132 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 878.1ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:26:42,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5980 states. [2021-03-11 14:26:42,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5980 to 3127. [2021-03-11 14:26:42,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3127 states, 3126 states have (on average 4.978566858605246) internal successors, (15563), 3126 states have internal predecessors, (15563), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:26:42,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3127 states to 3127 states and 15563 transitions. [2021-03-11 14:26:42,273 INFO L78 Accepts]: Start accepts. Automaton has 3127 states and 15563 transitions. Word has length 31 [2021-03-11 14:26:42,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:26:42,273 INFO L480 AbstractCegarLoop]: Abstraction has 3127 states and 15563 transitions. [2021-03-11 14:26:42,273 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:26:42,273 INFO L276 IsEmpty]: Start isEmpty. Operand 3127 states and 15563 transitions. [2021-03-11 14:26:42,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:26:42,278 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:26:42,278 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:26:42,278 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable667 [2021-03-11 14:26:42,278 INFO L428 AbstractCegarLoop]: === Iteration 669 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:26:42,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:26:42,279 INFO L82 PathProgramCache]: Analyzing trace with hash -1899657467, now seen corresponding path program 660 times [2021-03-11 14:26:42,279 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:26:42,279 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [441711361] [2021-03-11 14:26:42,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:26:42,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:26:42,291 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:26:42,292 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:26:42,293 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:26:42,295 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:26:42,312 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:26:42,314 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:26:42,343 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:26:42,344 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:26:42,388 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:26:42,389 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:26:42,447 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:26:42,449 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:26:42,518 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:26:42,520 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:26:42,601 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:26:42,603 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:26:42,698 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:26:42,700 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:26:42,812 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:26:42,814 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:26:42,945 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:26:42,947 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:26:43,054 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:26:43,054 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [441711361] [2021-03-11 14:26:43,054 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:26:43,054 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:26:43,054 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1198214240] [2021-03-11 14:26:43,054 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:26:43,054 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:26:43,054 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:26:43,054 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:26:43,054 INFO L87 Difference]: Start difference. First operand 3127 states and 15563 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:26:43,497 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 40 [2021-03-11 14:26:43,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:26:43,546 INFO L93 Difference]: Finished difference Result 5999 states and 26744 transitions. [2021-03-11 14:26:43,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:26:43,550 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:26:43,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:26:43,563 INFO L225 Difference]: With dead ends: 5999 [2021-03-11 14:26:43,563 INFO L226 Difference]: Without dead ends: 5969 [2021-03-11 14:26:43,563 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 913.2ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:26:43,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5969 states. [2021-03-11 14:26:43,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5969 to 3116. [2021-03-11 14:26:43,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3116 states, 3115 states have (on average 4.988121990369182) internal successors, (15538), 3115 states have internal predecessors, (15538), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:26:43,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3116 states to 3116 states and 15538 transitions. [2021-03-11 14:26:43,697 INFO L78 Accepts]: Start accepts. Automaton has 3116 states and 15538 transitions. Word has length 31 [2021-03-11 14:26:43,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:26:43,697 INFO L480 AbstractCegarLoop]: Abstraction has 3116 states and 15538 transitions. [2021-03-11 14:26:43,697 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:26:43,697 INFO L276 IsEmpty]: Start isEmpty. Operand 3116 states and 15538 transitions. [2021-03-11 14:26:43,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:26:43,702 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:26:43,702 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:26:43,702 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable668 [2021-03-11 14:26:43,702 INFO L428 AbstractCegarLoop]: === Iteration 670 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:26:43,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:26:43,702 INFO L82 PathProgramCache]: Analyzing trace with hash 566628165, now seen corresponding path program 661 times [2021-03-11 14:26:43,702 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:26:43,702 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2137051760] [2021-03-11 14:26:43,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:26:43,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:26:43,714 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:26:43,715 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:26:43,716 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:26:43,718 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:26:43,734 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:26:43,735 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:26:43,762 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:26:43,763 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:26:43,801 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:26:43,803 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:26:43,853 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:26:43,855 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:26:43,917 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:26:43,918 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:26:43,992 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:26:43,993 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:26:44,146 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 27 [2021-03-11 14:26:44,149 INFO L142 QuantifierPusher]: treesize reduction 54, result has 55.4 percent of original size [2021-03-11 14:26:44,151 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-03-11 14:26:44,319 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 28 [2021-03-11 14:26:44,322 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:26:44,324 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:26:44,455 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:26:44,456 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:26:44,569 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:26:44,569 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2137051760] [2021-03-11 14:26:44,569 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:26:44,569 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:26:44,570 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [982034240] [2021-03-11 14:26:44,570 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:26:44,570 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:26:44,570 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:26:44,570 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:26:44,570 INFO L87 Difference]: Start difference. First operand 3116 states and 15538 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:26:45,048 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 37 [2021-03-11 14:26:45,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:26:45,088 INFO L93 Difference]: Finished difference Result 6008 states and 26773 transitions. [2021-03-11 14:26:45,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:26:45,092 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:26:45,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:26:45,105 INFO L225 Difference]: With dead ends: 6008 [2021-03-11 14:26:45,106 INFO L226 Difference]: Without dead ends: 5992 [2021-03-11 14:26:45,106 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 996.8ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:26:45,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5992 states. [2021-03-11 14:26:45,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5992 to 3128. [2021-03-11 14:26:45,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3128 states, 3127 states have (on average 4.979533098816757) internal successors, (15571), 3127 states have internal predecessors, (15571), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:26:45,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3128 states to 3128 states and 15571 transitions. [2021-03-11 14:26:45,240 INFO L78 Accepts]: Start accepts. Automaton has 3128 states and 15571 transitions. Word has length 31 [2021-03-11 14:26:45,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:26:45,240 INFO L480 AbstractCegarLoop]: Abstraction has 3128 states and 15571 transitions. [2021-03-11 14:26:45,240 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:26:45,240 INFO L276 IsEmpty]: Start isEmpty. Operand 3128 states and 15571 transitions. [2021-03-11 14:26:45,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:26:45,245 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:26:45,245 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:26:45,245 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable669 [2021-03-11 14:26:45,245 INFO L428 AbstractCegarLoop]: === Iteration 671 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:26:45,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:26:45,245 INFO L82 PathProgramCache]: Analyzing trace with hash 1059223927, now seen corresponding path program 662 times [2021-03-11 14:26:45,245 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:26:45,245 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [105389161] [2021-03-11 14:26:45,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:26:45,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:26:45,259 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:26:45,260 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:26:45,262 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:26:45,263 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:26:45,279 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:26:45,280 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:26:45,307 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:26:45,308 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:26:45,347 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:26:45,348 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:26:45,399 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:26:45,401 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:26:45,463 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:26:45,464 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:26:45,538 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:26:45,540 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:26:45,686 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 27 [2021-03-11 14:26:45,690 INFO L142 QuantifierPusher]: treesize reduction 54, result has 55.4 percent of original size [2021-03-11 14:26:45,691 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-03-11 14:26:45,846 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 28 [2021-03-11 14:26:45,849 INFO L142 QuantifierPusher]: treesize reduction 72, result has 49.7 percent of original size [2021-03-11 14:26:45,851 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-03-11 14:26:45,977 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:26:45,978 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:26:46,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:26:46,090 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [105389161] [2021-03-11 14:26:46,090 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:26:46,090 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:26:46,090 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1763959875] [2021-03-11 14:26:46,090 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:26:46,090 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:26:46,090 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:26:46,090 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:26:46,091 INFO L87 Difference]: Start difference. First operand 3128 states and 15571 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:26:46,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:26:46,610 INFO L93 Difference]: Finished difference Result 6014 states and 26779 transitions. [2021-03-11 14:26:46,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:26:46,614 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:26:46,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:26:46,627 INFO L225 Difference]: With dead ends: 6014 [2021-03-11 14:26:46,627 INFO L226 Difference]: Without dead ends: 5986 [2021-03-11 14:26:46,627 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 890.4ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:26:46,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5986 states. [2021-03-11 14:26:46,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5986 to 3122. [2021-03-11 14:26:46,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3122 states, 3121 states have (on average 4.9836590836270425) internal successors, (15554), 3121 states have internal predecessors, (15554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:26:46,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3122 states to 3122 states and 15554 transitions. [2021-03-11 14:26:46,764 INFO L78 Accepts]: Start accepts. Automaton has 3122 states and 15554 transitions. Word has length 31 [2021-03-11 14:26:46,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:26:46,764 INFO L480 AbstractCegarLoop]: Abstraction has 3122 states and 15554 transitions. [2021-03-11 14:26:46,764 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:26:46,764 INFO L276 IsEmpty]: Start isEmpty. Operand 3122 states and 15554 transitions. [2021-03-11 14:26:46,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:26:46,769 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:26:46,769 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:26:46,769 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable670 [2021-03-11 14:26:46,769 INFO L428 AbstractCegarLoop]: === Iteration 672 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:26:46,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:26:46,769 INFO L82 PathProgramCache]: Analyzing trace with hash 354472547, now seen corresponding path program 663 times [2021-03-11 14:26:46,769 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:26:46,769 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2031583560] [2021-03-11 14:26:46,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:26:46,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:26:46,786 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:26:46,787 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:26:46,789 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:26:46,790 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:26:46,807 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:26:46,808 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:26:46,837 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:26:46,838 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:26:46,878 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:26:46,879 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:26:46,936 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:26:46,937 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:26:47,001 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:26:47,003 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:26:47,080 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:26:47,082 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:26:47,232 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 27 [2021-03-11 14:26:47,235 INFO L142 QuantifierPusher]: treesize reduction 45, result has 59.1 percent of original size [2021-03-11 14:26:47,236 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:26:47,409 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 31 [2021-03-11 14:26:47,412 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:26:47,413 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:26:47,533 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:26:47,534 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:26:47,640 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:26:47,640 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2031583560] [2021-03-11 14:26:47,640 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:26:47,641 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:26:47,641 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [22451645] [2021-03-11 14:26:47,641 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:26:47,641 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:26:47,641 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:26:47,641 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:26:47,641 INFO L87 Difference]: Start difference. First operand 3122 states and 15554 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:26:48,211 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 37 [2021-03-11 14:26:48,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:26:48,252 INFO L93 Difference]: Finished difference Result 6004 states and 26760 transitions. [2021-03-11 14:26:48,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:26:48,256 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:26:48,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:26:48,269 INFO L225 Difference]: With dead ends: 6004 [2021-03-11 14:26:48,269 INFO L226 Difference]: Without dead ends: 5988 [2021-03-11 14:26:48,269 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 997.1ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:26:48,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5988 states. [2021-03-11 14:26:48,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5988 to 3127. [2021-03-11 14:26:48,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3127 states, 3126 states have (on average 4.978566858605246) internal successors, (15563), 3126 states have internal predecessors, (15563), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:26:48,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3127 states to 3127 states and 15563 transitions. [2021-03-11 14:26:48,403 INFO L78 Accepts]: Start accepts. Automaton has 3127 states and 15563 transitions. Word has length 31 [2021-03-11 14:26:48,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:26:48,403 INFO L480 AbstractCegarLoop]: Abstraction has 3127 states and 15563 transitions. [2021-03-11 14:26:48,403 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:26:48,404 INFO L276 IsEmpty]: Start isEmpty. Operand 3127 states and 15563 transitions. [2021-03-11 14:26:48,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:26:48,408 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:26:48,409 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:26:48,409 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable671 [2021-03-11 14:26:48,409 INFO L428 AbstractCegarLoop]: === Iteration 673 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:26:48,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:26:48,409 INFO L82 PathProgramCache]: Analyzing trace with hash 424582583, now seen corresponding path program 664 times [2021-03-11 14:26:48,409 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:26:48,409 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2092234892] [2021-03-11 14:26:48,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:26:48,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:26:48,421 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:26:48,422 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:26:48,423 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:26:48,425 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:26:48,441 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:26:48,442 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:26:48,469 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:26:48,470 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:26:48,509 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:26:48,510 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:26:48,562 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:26:48,563 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:26:48,627 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:26:48,629 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:26:48,705 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:26:48,707 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:26:48,855 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 27 [2021-03-11 14:26:48,857 INFO L142 QuantifierPusher]: treesize reduction 45, result has 59.1 percent of original size [2021-03-11 14:26:48,859 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:26:49,026 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 31 [2021-03-11 14:26:49,029 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:26:49,030 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:26:49,151 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:26:49,152 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:26:49,258 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:26:49,258 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2092234892] [2021-03-11 14:26:49,258 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:26:49,258 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:26:49,259 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1041729678] [2021-03-11 14:26:49,259 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:26:49,259 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:26:49,259 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:26:49,259 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:26:49,259 INFO L87 Difference]: Start difference. First operand 3127 states and 15563 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:26:49,832 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 40 [2021-03-11 14:26:49,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:26:49,882 INFO L93 Difference]: Finished difference Result 6007 states and 26761 transitions. [2021-03-11 14:26:49,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:26:49,886 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:26:49,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:26:49,899 INFO L225 Difference]: With dead ends: 6007 [2021-03-11 14:26:49,899 INFO L226 Difference]: Without dead ends: 5983 [2021-03-11 14:26:49,899 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 991.3ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:26:49,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5983 states. [2021-03-11 14:26:50,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5983 to 3122. [2021-03-11 14:26:50,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3122 states, 3121 states have (on average 4.982057033002243) internal successors, (15549), 3121 states have internal predecessors, (15549), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:26:50,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3122 states to 3122 states and 15549 transitions. [2021-03-11 14:26:50,035 INFO L78 Accepts]: Start accepts. Automaton has 3122 states and 15549 transitions. Word has length 31 [2021-03-11 14:26:50,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:26:50,035 INFO L480 AbstractCegarLoop]: Abstraction has 3122 states and 15549 transitions. [2021-03-11 14:26:50,035 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:26:50,035 INFO L276 IsEmpty]: Start isEmpty. Operand 3122 states and 15549 transitions. [2021-03-11 14:26:50,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:26:50,040 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:26:50,040 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:26:50,040 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable672 [2021-03-11 14:26:50,040 INFO L428 AbstractCegarLoop]: === Iteration 674 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:26:50,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:26:50,040 INFO L82 PathProgramCache]: Analyzing trace with hash -1062332253, now seen corresponding path program 665 times [2021-03-11 14:26:50,040 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:26:50,041 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [713277238] [2021-03-11 14:26:50,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:26:50,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:26:50,052 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:26:50,054 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:26:50,055 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:26:50,056 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:26:50,073 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:26:50,074 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:26:50,101 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:26:50,102 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:26:50,142 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:26:50,143 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:26:50,196 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:26:50,197 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:26:50,262 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:26:50,263 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:26:50,341 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:26:50,342 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:26:50,491 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 27 [2021-03-11 14:26:50,494 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:26:50,495 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:26:50,605 INFO L142 QuantifierPusher]: treesize reduction 72, result has 49.7 percent of original size [2021-03-11 14:26:50,607 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-03-11 14:26:50,733 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:26:50,735 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:26:50,845 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:26:50,845 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [713277238] [2021-03-11 14:26:50,845 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:26:50,845 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:26:50,846 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [482938487] [2021-03-11 14:26:50,846 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:26:50,846 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:26:50,846 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:26:50,846 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:26:50,846 INFO L87 Difference]: Start difference. First operand 3122 states and 15549 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:26:51,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:26:51,277 INFO L93 Difference]: Finished difference Result 6020 states and 26788 transitions. [2021-03-11 14:26:51,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:26:51,281 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:26:51,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:26:51,294 INFO L225 Difference]: With dead ends: 6020 [2021-03-11 14:26:51,294 INFO L226 Difference]: Without dead ends: 5998 [2021-03-11 14:26:51,294 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 857.2ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:26:51,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5998 states. [2021-03-11 14:26:51,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5998 to 3131. [2021-03-11 14:26:51,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3131 states, 3130 states have (on average 4.972843450479234) internal successors, (15565), 3130 states have internal predecessors, (15565), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:26:51,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3131 states to 3131 states and 15565 transitions. [2021-03-11 14:26:51,430 INFO L78 Accepts]: Start accepts. Automaton has 3131 states and 15565 transitions. Word has length 31 [2021-03-11 14:26:51,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:26:51,430 INFO L480 AbstractCegarLoop]: Abstraction has 3131 states and 15565 transitions. [2021-03-11 14:26:51,430 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:26:51,430 INFO L276 IsEmpty]: Start isEmpty. Operand 3131 states and 15565 transitions. [2021-03-11 14:26:51,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:26:51,435 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:26:51,435 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:26:51,435 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable673 [2021-03-11 14:26:51,435 INFO L428 AbstractCegarLoop]: === Iteration 675 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:26:51,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:26:51,435 INFO L82 PathProgramCache]: Analyzing trace with hash -1484817979, now seen corresponding path program 666 times [2021-03-11 14:26:51,435 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:26:51,436 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1979774613] [2021-03-11 14:26:51,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:26:51,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:26:51,447 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:26:51,449 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:26:51,450 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:26:51,451 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:26:51,467 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:26:51,469 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:26:51,496 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:26:51,497 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:26:51,537 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:26:51,538 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:26:51,591 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:26:51,592 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:26:51,657 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:26:51,658 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:26:51,735 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:26:51,737 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:26:51,886 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 27 [2021-03-11 14:26:51,889 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:26:51,890 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:26:52,001 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:26:52,002 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:26:52,126 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:26:52,127 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:26:52,242 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:26:52,243 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1979774613] [2021-03-11 14:26:52,243 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:26:52,243 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:26:52,243 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [846096549] [2021-03-11 14:26:52,243 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:26:52,243 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:26:52,243 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:26:52,243 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:26:52,243 INFO L87 Difference]: Start difference. First operand 3131 states and 15565 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:26:52,832 WARN L205 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 40 [2021-03-11 14:26:52,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:26:52,893 INFO L93 Difference]: Finished difference Result 6017 states and 26774 transitions. [2021-03-11 14:26:52,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:26:52,897 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:26:52,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:26:52,911 INFO L225 Difference]: With dead ends: 6017 [2021-03-11 14:26:52,911 INFO L226 Difference]: Without dead ends: 5983 [2021-03-11 14:26:52,911 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 966.1ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:26:52,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5983 states. [2021-03-11 14:26:53,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5983 to 3116. [2021-03-11 14:26:53,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3116 states, 3115 states have (on average 4.986195826645265) internal successors, (15532), 3115 states have internal predecessors, (15532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:26:53,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3116 states to 3116 states and 15532 transitions. [2021-03-11 14:26:53,054 INFO L78 Accepts]: Start accepts. Automaton has 3116 states and 15532 transitions. Word has length 31 [2021-03-11 14:26:53,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:26:53,054 INFO L480 AbstractCegarLoop]: Abstraction has 3116 states and 15532 transitions. [2021-03-11 14:26:53,054 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:26:53,055 INFO L276 IsEmpty]: Start isEmpty. Operand 3116 states and 15532 transitions. [2021-03-11 14:26:53,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:26:53,060 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:26:53,060 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:26:53,060 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable674 [2021-03-11 14:26:53,060 INFO L428 AbstractCegarLoop]: === Iteration 676 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:26:53,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:26:53,060 INFO L82 PathProgramCache]: Analyzing trace with hash 1785537229, now seen corresponding path program 667 times [2021-03-11 14:26:53,060 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:26:53,060 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1212403819] [2021-03-11 14:26:53,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:26:53,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:26:53,072 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:26:53,073 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:26:53,075 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:26:53,076 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:26:53,094 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:26:53,096 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:26:53,126 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:26:53,127 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:26:53,171 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:26:53,172 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:26:53,230 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:26:53,232 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:26:53,302 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:26:53,304 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:26:53,387 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:26:53,389 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:26:53,486 INFO L142 QuantifierPusher]: treesize reduction 54, result has 55.4 percent of original size [2021-03-11 14:26:53,488 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-03-11 14:26:53,674 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 32 [2021-03-11 14:26:53,678 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:26:53,679 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:26:53,813 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:26:53,814 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:26:53,931 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:26:53,932 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1212403819] [2021-03-11 14:26:53,932 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:26:53,932 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:26:53,932 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1816740140] [2021-03-11 14:26:53,932 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:26:53,932 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:26:53,932 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:26:53,932 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:26:53,932 INFO L87 Difference]: Start difference. First operand 3116 states and 15532 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:26:54,442 WARN L205 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 38 [2021-03-11 14:26:54,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:26:54,486 INFO L93 Difference]: Finished difference Result 6015 states and 26786 transitions. [2021-03-11 14:26:54,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:26:54,490 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:26:54,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:26:54,504 INFO L225 Difference]: With dead ends: 6015 [2021-03-11 14:26:54,504 INFO L226 Difference]: Without dead ends: 5998 [2021-03-11 14:26:54,504 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 1016.2ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:26:54,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5998 states. [2021-03-11 14:26:54,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5998 to 3130. [2021-03-11 14:26:54,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3130 states, 3129 states have (on average 4.976350271652285) internal successors, (15571), 3129 states have internal predecessors, (15571), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:26:54,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3130 states to 3130 states and 15571 transitions. [2021-03-11 14:26:54,641 INFO L78 Accepts]: Start accepts. Automaton has 3130 states and 15571 transitions. Word has length 31 [2021-03-11 14:26:54,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:26:54,641 INFO L480 AbstractCegarLoop]: Abstraction has 3130 states and 15571 transitions. [2021-03-11 14:26:54,641 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:26:54,642 INFO L276 IsEmpty]: Start isEmpty. Operand 3130 states and 15571 transitions. [2021-03-11 14:26:54,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:26:54,646 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:26:54,646 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:26:54,646 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable675 [2021-03-11 14:26:54,646 INFO L428 AbstractCegarLoop]: === Iteration 677 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:26:54,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:26:54,646 INFO L82 PathProgramCache]: Analyzing trace with hash -326891401, now seen corresponding path program 668 times [2021-03-11 14:26:54,646 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:26:54,647 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1674980541] [2021-03-11 14:26:54,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:26:54,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:26:54,658 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:26:54,660 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:26:54,661 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:26:54,662 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:26:54,679 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:26:54,680 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:26:54,707 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:26:54,709 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:26:54,748 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:26:54,749 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:26:54,802 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:26:54,804 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:26:54,867 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:26:54,868 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:26:54,943 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:26:54,944 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:26:55,034 INFO L142 QuantifierPusher]: treesize reduction 54, result has 55.4 percent of original size [2021-03-11 14:26:55,036 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-03-11 14:26:55,207 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 32 [2021-03-11 14:26:55,211 INFO L142 QuantifierPusher]: treesize reduction 72, result has 49.7 percent of original size [2021-03-11 14:26:55,212 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-03-11 14:26:55,338 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:26:55,339 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:26:55,447 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:26:55,447 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1674980541] [2021-03-11 14:26:55,447 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:26:55,447 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:26:55,447 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1284411879] [2021-03-11 14:26:55,447 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:26:55,447 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:26:55,447 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:26:55,447 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:26:55,448 INFO L87 Difference]: Start difference. First operand 3130 states and 15571 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:26:55,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:26:55,860 INFO L93 Difference]: Finished difference Result 6020 states and 26789 transitions. [2021-03-11 14:26:55,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:26:55,864 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:26:55,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:26:55,876 INFO L225 Difference]: With dead ends: 6020 [2021-03-11 14:26:55,877 INFO L226 Difference]: Without dead ends: 5991 [2021-03-11 14:26:55,877 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 851.9ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:26:55,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5991 states. [2021-03-11 14:26:56,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5991 to 3123. [2021-03-11 14:26:56,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3123 states, 3122 states have (on average 4.9811018577834725) internal successors, (15551), 3122 states have internal predecessors, (15551), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:26:56,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3123 states to 3123 states and 15551 transitions. [2021-03-11 14:26:56,013 INFO L78 Accepts]: Start accepts. Automaton has 3123 states and 15551 transitions. Word has length 31 [2021-03-11 14:26:56,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:26:56,013 INFO L480 AbstractCegarLoop]: Abstraction has 3123 states and 15551 transitions. [2021-03-11 14:26:56,013 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:26:56,013 INFO L276 IsEmpty]: Start isEmpty. Operand 3123 states and 15551 transitions. [2021-03-11 14:26:56,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:26:56,018 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:26:56,018 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:26:56,018 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable676 [2021-03-11 14:26:56,018 INFO L428 AbstractCegarLoop]: === Iteration 678 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:26:56,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:26:56,018 INFO L82 PathProgramCache]: Analyzing trace with hash 1573381611, now seen corresponding path program 669 times [2021-03-11 14:26:56,018 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:26:56,018 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1678904861] [2021-03-11 14:26:56,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:26:56,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:26:56,030 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:26:56,031 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:26:56,032 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:26:56,033 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:26:56,050 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:26:56,051 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:26:56,078 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:26:56,080 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:26:56,119 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:26:56,120 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:26:56,172 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:26:56,174 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:26:56,237 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:26:56,239 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:26:56,314 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:26:56,315 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:26:56,407 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:26:56,408 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:26:56,512 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:26:56,513 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:26:56,636 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:26:56,638 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:26:56,746 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:26:56,746 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1678904861] [2021-03-11 14:26:56,746 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:26:56,746 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:26:56,747 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1203101699] [2021-03-11 14:26:56,747 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:26:56,747 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:26:56,747 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:26:56,747 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:26:56,747 INFO L87 Difference]: Start difference. First operand 3123 states and 15551 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:26:57,288 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 38 [2021-03-11 14:26:57,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:26:57,329 INFO L93 Difference]: Finished difference Result 6011 states and 26772 transitions. [2021-03-11 14:26:57,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:26:57,334 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:26:57,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:26:57,347 INFO L225 Difference]: With dead ends: 6011 [2021-03-11 14:26:57,347 INFO L226 Difference]: Without dead ends: 5994 [2021-03-11 14:26:57,347 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 860.3ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:26:57,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5994 states. [2021-03-11 14:26:57,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5994 to 3129. [2021-03-11 14:26:57,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3129 states, 3128 states have (on average 4.975063938618926) internal successors, (15562), 3128 states have internal predecessors, (15562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:26:57,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3129 states to 3129 states and 15562 transitions. [2021-03-11 14:26:57,483 INFO L78 Accepts]: Start accepts. Automaton has 3129 states and 15562 transitions. Word has length 31 [2021-03-11 14:26:57,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:26:57,483 INFO L480 AbstractCegarLoop]: Abstraction has 3129 states and 15562 transitions. [2021-03-11 14:26:57,483 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:26:57,483 INFO L276 IsEmpty]: Start isEmpty. Operand 3129 states and 15562 transitions. [2021-03-11 14:26:57,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:26:57,488 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:26:57,488 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:26:57,488 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable677 [2021-03-11 14:26:57,488 INFO L428 AbstractCegarLoop]: === Iteration 679 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:26:57,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:26:57,488 INFO L82 PathProgramCache]: Analyzing trace with hash -961532745, now seen corresponding path program 670 times [2021-03-11 14:26:57,488 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:26:57,488 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1043929997] [2021-03-11 14:26:57,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:26:57,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:26:57,500 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:26:57,501 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:26:57,503 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:26:57,504 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:26:57,520 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:26:57,521 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:26:57,549 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:26:57,550 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:26:57,590 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:26:57,591 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:26:57,644 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:26:57,645 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:26:57,709 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:26:57,710 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:26:57,788 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:26:57,789 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:26:57,882 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:26:57,883 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:26:57,991 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:26:57,993 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:26:58,118 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:26:58,120 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:26:58,228 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:26:58,228 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1043929997] [2021-03-11 14:26:58,229 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:26:58,229 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:26:58,229 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1553728587] [2021-03-11 14:26:58,229 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:26:58,229 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:26:58,229 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:26:58,229 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:26:58,229 INFO L87 Difference]: Start difference. First operand 3129 states and 15562 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:26:58,702 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 40 [2021-03-11 14:26:58,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:26:58,756 INFO L93 Difference]: Finished difference Result 6013 states and 26770 transitions. [2021-03-11 14:26:58,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:26:58,760 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:26:58,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:26:58,773 INFO L225 Difference]: With dead ends: 6013 [2021-03-11 14:26:58,773 INFO L226 Difference]: Without dead ends: 5988 [2021-03-11 14:26:58,773 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 882.8ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:26:58,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5988 states. [2021-03-11 14:26:58,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5988 to 3123. [2021-03-11 14:26:58,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3123 states, 3122 states have (on average 4.9791800128123) internal successors, (15545), 3122 states have internal predecessors, (15545), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:26:58,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3123 states to 3123 states and 15545 transitions. [2021-03-11 14:26:58,908 INFO L78 Accepts]: Start accepts. Automaton has 3123 states and 15545 transitions. Word has length 31 [2021-03-11 14:26:58,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:26:58,908 INFO L480 AbstractCegarLoop]: Abstraction has 3123 states and 15545 transitions. [2021-03-11 14:26:58,908 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:26:58,908 INFO L276 IsEmpty]: Start isEmpty. Operand 3123 states and 15545 transitions. [2021-03-11 14:26:58,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:26:58,912 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:26:58,912 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:26:58,912 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable678 [2021-03-11 14:26:58,913 INFO L428 AbstractCegarLoop]: === Iteration 680 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:26:58,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:26:58,913 INFO L82 PathProgramCache]: Analyzing trace with hash -1599825109, now seen corresponding path program 671 times [2021-03-11 14:26:58,913 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:26:58,913 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [285102421] [2021-03-11 14:26:58,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:26:58,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:26:58,925 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:26:58,926 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:26:58,927 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:26:58,928 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:26:58,945 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:26:58,946 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:26:58,974 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:26:58,975 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:26:59,015 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:26:59,017 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:26:59,069 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:26:59,071 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:26:59,135 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:26:59,136 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:26:59,211 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:26:59,213 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:26:59,303 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:26:59,304 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:26:59,412 INFO L142 QuantifierPusher]: treesize reduction 72, result has 49.7 percent of original size [2021-03-11 14:26:59,413 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-03-11 14:26:59,538 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:26:59,539 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:26:59,649 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:26:59,649 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [285102421] [2021-03-11 14:26:59,649 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:26:59,649 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:26:59,649 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1212577765] [2021-03-11 14:26:59,649 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:26:59,650 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:26:59,650 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:26:59,650 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:26:59,650 INFO L87 Difference]: Start difference. First operand 3123 states and 15545 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:27:00,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:27:00,186 INFO L93 Difference]: Finished difference Result 6024 states and 26792 transitions. [2021-03-11 14:27:00,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:27:00,190 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:27:00,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:27:00,203 INFO L225 Difference]: With dead ends: 6024 [2021-03-11 14:27:00,203 INFO L226 Difference]: Without dead ends: 6002 [2021-03-11 14:27:00,204 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 793.2ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:27:00,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6002 states. [2021-03-11 14:27:00,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6002 to 3132. [2021-03-11 14:27:00,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3132 states, 3131 states have (on average 4.969977642925583) internal successors, (15561), 3131 states have internal predecessors, (15561), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:27:00,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3132 states to 3132 states and 15561 transitions. [2021-03-11 14:27:00,341 INFO L78 Accepts]: Start accepts. Automaton has 3132 states and 15561 transitions. Word has length 31 [2021-03-11 14:27:00,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:27:00,341 INFO L480 AbstractCegarLoop]: Abstraction has 3132 states and 15561 transitions. [2021-03-11 14:27:00,341 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:27:00,341 INFO L276 IsEmpty]: Start isEmpty. Operand 3132 states and 15561 transitions. [2021-03-11 14:27:00,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:27:00,346 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:27:00,346 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:27:00,346 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable679 [2021-03-11 14:27:00,346 INFO L428 AbstractCegarLoop]: === Iteration 681 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:27:00,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:27:00,346 INFO L82 PathProgramCache]: Analyzing trace with hash -2022310835, now seen corresponding path program 672 times [2021-03-11 14:27:00,346 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:27:00,346 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [31662654] [2021-03-11 14:27:00,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:27:00,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:27:00,358 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:27:00,359 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:27:00,361 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:27:00,362 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:27:00,379 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:27:00,380 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:27:00,408 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:27:00,409 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:27:00,451 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:27:00,452 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:27:00,506 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:27:00,507 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:27:00,573 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:27:00,574 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:27:00,652 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:27:00,654 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:27:00,748 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:27:00,750 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:27:00,859 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:27:00,861 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:27:00,991 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:27:00,992 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:27:01,108 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:27:01,108 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [31662654] [2021-03-11 14:27:01,108 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:27:01,108 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:27:01,108 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [490790701] [2021-03-11 14:27:01,109 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:27:01,109 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:27:01,109 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:27:01,109 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:27:01,109 INFO L87 Difference]: Start difference. First operand 3132 states and 15561 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:27:01,635 WARN L205 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 40 [2021-03-11 14:27:01,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:27:01,705 INFO L93 Difference]: Finished difference Result 6021 states and 26778 transitions. [2021-03-11 14:27:01,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:27:01,710 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:27:01,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:27:01,724 INFO L225 Difference]: With dead ends: 6021 [2021-03-11 14:27:01,724 INFO L226 Difference]: Without dead ends: 5980 [2021-03-11 14:27:01,724 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 915.4ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:27:01,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5980 states. [2021-03-11 14:27:01,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5980 to 3110. [2021-03-11 14:27:01,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3110 states, 3109 states have (on average 4.990350595046639) internal successors, (15515), 3109 states have internal predecessors, (15515), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:27:01,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3110 states to 3110 states and 15515 transitions. [2021-03-11 14:27:01,866 INFO L78 Accepts]: Start accepts. Automaton has 3110 states and 15515 transitions. Word has length 31 [2021-03-11 14:27:01,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:27:01,866 INFO L480 AbstractCegarLoop]: Abstraction has 3110 states and 15515 transitions. [2021-03-11 14:27:01,866 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:27:01,866 INFO L276 IsEmpty]: Start isEmpty. Operand 3110 states and 15515 transitions. [2021-03-11 14:27:01,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:27:01,871 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:27:01,871 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:27:01,871 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable680 [2021-03-11 14:27:01,871 INFO L428 AbstractCegarLoop]: === Iteration 682 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:27:01,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:27:01,871 INFO L82 PathProgramCache]: Analyzing trace with hash 1999383199, now seen corresponding path program 673 times [2021-03-11 14:27:01,871 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:27:01,871 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [387807212] [2021-03-11 14:27:01,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:27:01,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:27:01,883 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:27:01,885 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:27:01,886 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:27:01,888 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:27:01,906 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:27:01,907 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:27:01,938 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:27:01,939 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:27:01,980 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:27:01,981 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:27:02,037 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:27:02,038 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:27:02,105 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:27:02,106 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:27:02,185 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:27:02,186 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:27:02,341 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 28 [2021-03-11 14:27:02,344 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:27:02,345 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:27:02,451 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:27:02,452 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:27:02,577 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:27:02,578 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:27:02,689 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:27:02,689 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [387807212] [2021-03-11 14:27:02,689 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:27:02,689 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:27:02,689 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1192869565] [2021-03-11 14:27:02,689 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:27:02,689 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:27:02,689 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:27:02,689 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:27:02,689 INFO L87 Difference]: Start difference. First operand 3110 states and 15515 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:27:03,187 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 38 [2021-03-11 14:27:03,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:27:03,228 INFO L93 Difference]: Finished difference Result 6005 states and 26776 transitions. [2021-03-11 14:27:03,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:27:03,231 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:27:03,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:27:03,244 INFO L225 Difference]: With dead ends: 6005 [2021-03-11 14:27:03,244 INFO L226 Difference]: Without dead ends: 5989 [2021-03-11 14:27:03,245 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 947.0ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:27:03,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5989 states. [2021-03-11 14:27:03,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5989 to 3127. [2021-03-11 14:27:03,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3127 states, 3126 states have (on average 4.982085732565579) internal successors, (15574), 3126 states have internal predecessors, (15574), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:27:03,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3127 states to 3127 states and 15574 transitions. [2021-03-11 14:27:03,381 INFO L78 Accepts]: Start accepts. Automaton has 3127 states and 15574 transitions. Word has length 31 [2021-03-11 14:27:03,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:27:03,381 INFO L480 AbstractCegarLoop]: Abstraction has 3127 states and 15574 transitions. [2021-03-11 14:27:03,381 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:27:03,381 INFO L276 IsEmpty]: Start isEmpty. Operand 3127 states and 15574 transitions. [2021-03-11 14:27:03,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:27:03,386 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:27:03,386 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:27:03,386 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable681 [2021-03-11 14:27:03,386 INFO L428 AbstractCegarLoop]: === Iteration 683 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:27:03,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:27:03,386 INFO L82 PathProgramCache]: Analyzing trace with hash -535531157, now seen corresponding path program 674 times [2021-03-11 14:27:03,386 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:27:03,386 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1263580480] [2021-03-11 14:27:03,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:27:03,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:27:03,398 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:27:03,399 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:27:03,401 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:27:03,402 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:27:03,419 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:27:03,420 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:27:03,448 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:27:03,450 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:27:03,490 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:27:03,492 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:27:03,545 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:27:03,547 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:27:03,613 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:27:03,614 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:27:03,693 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:27:03,694 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:27:03,844 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 28 [2021-03-11 14:27:03,847 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:27:03,848 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:27:03,952 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:27:03,953 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:27:04,078 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:27:04,079 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:27:04,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:27:04,189 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1263580480] [2021-03-11 14:27:04,189 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:27:04,189 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:27:04,189 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [521471388] [2021-03-11 14:27:04,189 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:27:04,189 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:27:04,189 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:27:04,189 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:27:04,189 INFO L87 Difference]: Start difference. First operand 3127 states and 15574 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:27:04,683 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 37 [2021-03-11 14:27:04,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:27:04,729 INFO L93 Difference]: Finished difference Result 6007 states and 26775 transitions. [2021-03-11 14:27:04,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:27:04,733 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:27:04,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:27:04,745 INFO L225 Difference]: With dead ends: 6007 [2021-03-11 14:27:04,745 INFO L226 Difference]: Without dead ends: 5984 [2021-03-11 14:27:04,746 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 934.6ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:27:04,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5984 states. [2021-03-11 14:27:04,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5984 to 3122. [2021-03-11 14:27:04,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3122 states, 3121 states have (on average 4.985581544376802) internal successors, (15560), 3121 states have internal predecessors, (15560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:27:04,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3122 states to 3122 states and 15560 transitions. [2021-03-11 14:27:04,879 INFO L78 Accepts]: Start accepts. Automaton has 3122 states and 15560 transitions. Word has length 31 [2021-03-11 14:27:04,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:27:04,879 INFO L480 AbstractCegarLoop]: Abstraction has 3122 states and 15560 transitions. [2021-03-11 14:27:04,879 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:27:04,879 INFO L276 IsEmpty]: Start isEmpty. Operand 3122 states and 15560 transitions. [2021-03-11 14:27:04,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:27:04,884 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:27:04,884 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:27:04,884 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable682 [2021-03-11 14:27:04,884 INFO L428 AbstractCegarLoop]: === Iteration 684 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:27:04,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:27:04,884 INFO L82 PathProgramCache]: Analyzing trace with hash 1362916345, now seen corresponding path program 675 times [2021-03-11 14:27:04,884 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:27:04,884 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [169439369] [2021-03-11 14:27:04,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:27:04,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:27:04,896 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:27:04,898 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:27:04,899 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:27:04,900 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:27:04,917 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:27:04,918 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:27:04,947 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:27:04,948 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:27:04,988 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:27:04,989 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:27:05,043 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:27:05,045 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:27:05,110 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:27:05,111 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:27:05,188 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:27:05,189 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:27:05,341 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 28 [2021-03-11 14:27:05,344 INFO L142 QuantifierPusher]: treesize reduction 54, result has 55.4 percent of original size [2021-03-11 14:27:05,346 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-03-11 14:27:05,501 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 28 [2021-03-11 14:27:05,504 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:27:05,506 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:27:05,630 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:27:05,631 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:27:05,742 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:27:05,742 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [169439369] [2021-03-11 14:27:05,742 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:27:05,742 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:27:05,742 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1833470810] [2021-03-11 14:27:05,742 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:27:05,743 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:27:05,743 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:27:05,743 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:27:05,743 INFO L87 Difference]: Start difference. First operand 3122 states and 15560 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:27:06,268 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 38 [2021-03-11 14:27:06,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:27:06,307 INFO L93 Difference]: Finished difference Result 6010 states and 26780 transitions. [2021-03-11 14:27:06,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:27:06,311 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:27:06,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:27:06,324 INFO L225 Difference]: With dead ends: 6010 [2021-03-11 14:27:06,324 INFO L226 Difference]: Without dead ends: 5994 [2021-03-11 14:27:06,324 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 988.3ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:27:06,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5994 states. [2021-03-11 14:27:06,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5994 to 3128. [2021-03-11 14:27:06,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3128 states, 3127 states have (on average 4.979533098816757) internal successors, (15571), 3127 states have internal predecessors, (15571), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:27:06,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3128 states to 3128 states and 15571 transitions. [2021-03-11 14:27:06,460 INFO L78 Accepts]: Start accepts. Automaton has 3128 states and 15571 transitions. Word has length 31 [2021-03-11 14:27:06,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:27:06,460 INFO L480 AbstractCegarLoop]: Abstraction has 3128 states and 15571 transitions. [2021-03-11 14:27:06,460 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:27:06,460 INFO L276 IsEmpty]: Start isEmpty. Operand 3128 states and 15571 transitions. [2021-03-11 14:27:06,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:27:06,464 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:27:06,464 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:27:06,465 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable683 [2021-03-11 14:27:06,465 INFO L428 AbstractCegarLoop]: === Iteration 685 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:27:06,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:27:06,465 INFO L82 PathProgramCache]: Analyzing trace with hash 1855512107, now seen corresponding path program 676 times [2021-03-11 14:27:06,465 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:27:06,465 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1014194048] [2021-03-11 14:27:06,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:27:06,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:27:06,477 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:27:06,478 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:27:06,479 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:27:06,481 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:27:06,497 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:27:06,498 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:27:06,526 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:27:06,528 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:27:06,568 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:27:06,569 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:27:06,625 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:27:06,626 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:27:06,691 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:27:06,692 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:27:06,770 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:27:06,771 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:27:06,920 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 28 [2021-03-11 14:27:06,923 INFO L142 QuantifierPusher]: treesize reduction 54, result has 55.4 percent of original size [2021-03-11 14:27:06,925 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-03-11 14:27:07,086 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 28 [2021-03-11 14:27:07,089 INFO L142 QuantifierPusher]: treesize reduction 72, result has 49.7 percent of original size [2021-03-11 14:27:07,091 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-03-11 14:27:07,222 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:27:07,223 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:27:07,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:27:07,334 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1014194048] [2021-03-11 14:27:07,334 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:27:07,334 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:27:07,334 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [49787436] [2021-03-11 14:27:07,334 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:27:07,334 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:27:07,334 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:27:07,335 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:27:07,335 INFO L87 Difference]: Start difference. First operand 3128 states and 15571 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:27:07,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:27:07,811 INFO L93 Difference]: Finished difference Result 6016 states and 26786 transitions. [2021-03-11 14:27:07,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:27:07,815 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:27:07,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:27:07,828 INFO L225 Difference]: With dead ends: 6016 [2021-03-11 14:27:07,828 INFO L226 Difference]: Without dead ends: 5988 [2021-03-11 14:27:07,828 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 921.0ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:27:07,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5988 states. [2021-03-11 14:27:07,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5988 to 3122. [2021-03-11 14:27:07,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3122 states, 3121 states have (on average 4.9836590836270425) internal successors, (15554), 3121 states have internal predecessors, (15554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:27:07,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3122 states to 3122 states and 15554 transitions. [2021-03-11 14:27:07,964 INFO L78 Accepts]: Start accepts. Automaton has 3122 states and 15554 transitions. Word has length 31 [2021-03-11 14:27:07,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:27:07,964 INFO L480 AbstractCegarLoop]: Abstraction has 3122 states and 15554 transitions. [2021-03-11 14:27:07,964 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:27:07,964 INFO L276 IsEmpty]: Start isEmpty. Operand 3122 states and 15554 transitions. [2021-03-11 14:27:07,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:27:07,968 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:27:07,969 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:27:07,969 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable684 [2021-03-11 14:27:07,969 INFO L428 AbstractCegarLoop]: === Iteration 686 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:27:07,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:27:07,969 INFO L82 PathProgramCache]: Analyzing trace with hash 1850035577, now seen corresponding path program 677 times [2021-03-11 14:27:07,969 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:27:07,969 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [922621073] [2021-03-11 14:27:07,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:27:07,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:27:07,981 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:27:07,983 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:27:07,984 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:27:07,985 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:27:08,002 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:27:08,003 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:27:08,032 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:27:08,034 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:27:08,075 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:27:08,076 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:27:08,130 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:27:08,131 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:27:08,196 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:27:08,197 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:27:08,274 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:27:08,276 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:27:08,426 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 28 [2021-03-11 14:27:08,429 INFO L142 QuantifierPusher]: treesize reduction 54, result has 55.4 percent of original size [2021-03-11 14:27:08,430 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-03-11 14:27:08,613 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 33 [2021-03-11 14:27:08,616 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:27:08,617 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:27:08,745 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:27:08,747 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:27:08,857 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:27:08,857 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [922621073] [2021-03-11 14:27:08,857 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:27:08,857 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:27:08,857 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [703102101] [2021-03-11 14:27:08,857 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:27:08,857 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:27:08,858 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:27:08,858 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:27:08,858 INFO L87 Difference]: Start difference. First operand 3122 states and 15554 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:27:09,391 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 37 [2021-03-11 14:27:09,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:27:09,434 INFO L93 Difference]: Finished difference Result 6016 states and 26788 transitions. [2021-03-11 14:27:09,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:27:09,438 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:27:09,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:27:09,452 INFO L225 Difference]: With dead ends: 6016 [2021-03-11 14:27:09,452 INFO L226 Difference]: Without dead ends: 5998 [2021-03-11 14:27:09,452 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 1020.8ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:27:09,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5998 states. [2021-03-11 14:27:09,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5998 to 3130. [2021-03-11 14:27:09,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3130 states, 3129 states have (on average 4.975711089805049) internal successors, (15569), 3129 states have internal predecessors, (15569), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:27:09,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3130 states to 3130 states and 15569 transitions. [2021-03-11 14:27:09,587 INFO L78 Accepts]: Start accepts. Automaton has 3130 states and 15569 transitions. Word has length 31 [2021-03-11 14:27:09,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:27:09,588 INFO L480 AbstractCegarLoop]: Abstraction has 3130 states and 15569 transitions. [2021-03-11 14:27:09,588 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:27:09,588 INFO L276 IsEmpty]: Start isEmpty. Operand 3130 states and 15569 transitions. [2021-03-11 14:27:09,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:27:09,592 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:27:09,592 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:27:09,592 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable685 [2021-03-11 14:27:09,592 INFO L428 AbstractCegarLoop]: === Iteration 687 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:27:09,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:27:09,593 INFO L82 PathProgramCache]: Analyzing trace with hash 582578399, now seen corresponding path program 678 times [2021-03-11 14:27:09,593 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:27:09,593 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [853363657] [2021-03-11 14:27:09,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:27:09,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:27:09,606 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:27:09,608 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:27:09,609 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:27:09,610 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:27:09,627 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:27:09,628 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:27:09,657 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:27:09,658 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:27:09,699 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:27:09,701 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:27:09,755 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:27:09,757 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:27:09,823 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:27:09,824 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:27:09,903 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:27:09,904 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:27:10,057 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 28 [2021-03-11 14:27:10,061 INFO L142 QuantifierPusher]: treesize reduction 54, result has 55.4 percent of original size [2021-03-11 14:27:10,062 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-03-11 14:27:10,243 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 33 [2021-03-11 14:27:10,246 INFO L142 QuantifierPusher]: treesize reduction 72, result has 49.7 percent of original size [2021-03-11 14:27:10,247 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-03-11 14:27:10,377 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:27:10,378 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:27:10,489 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:27:10,489 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [853363657] [2021-03-11 14:27:10,490 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:27:10,490 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:27:10,490 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1394310144] [2021-03-11 14:27:10,490 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:27:10,490 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:27:10,490 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:27:10,490 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:27:10,490 INFO L87 Difference]: Start difference. First operand 3130 states and 15569 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:27:10,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:27:10,956 INFO L93 Difference]: Finished difference Result 6020 states and 26788 transitions. [2021-03-11 14:27:10,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:27:10,961 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:27:10,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:27:10,975 INFO L225 Difference]: With dead ends: 6020 [2021-03-11 14:27:10,975 INFO L226 Difference]: Without dead ends: 5984 [2021-03-11 14:27:10,975 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 955.4ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:27:11,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5984 states. [2021-03-11 14:27:11,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5984 to 3116. [2021-03-11 14:27:11,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3116 states, 3115 states have (on average 4.987800963081862) internal successors, (15537), 3115 states have internal predecessors, (15537), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:27:11,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3116 states to 3116 states and 15537 transitions. [2021-03-11 14:27:11,119 INFO L78 Accepts]: Start accepts. Automaton has 3116 states and 15537 transitions. Word has length 31 [2021-03-11 14:27:11,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:27:11,119 INFO L480 AbstractCegarLoop]: Abstraction has 3116 states and 15537 transitions. [2021-03-11 14:27:11,119 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:27:11,119 INFO L276 IsEmpty]: Start isEmpty. Operand 3116 states and 15537 transitions. [2021-03-11 14:27:11,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:27:11,124 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:27:11,124 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:27:11,124 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable686 [2021-03-11 14:27:11,124 INFO L428 AbstractCegarLoop]: === Iteration 688 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:27:11,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:27:11,125 INFO L82 PathProgramCache]: Analyzing trace with hash -282473663, now seen corresponding path program 679 times [2021-03-11 14:27:11,125 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:27:11,125 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1789865529] [2021-03-11 14:27:11,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:27:11,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:27:11,138 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:27:11,140 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:27:11,141 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:27:11,142 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:27:11,161 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:27:11,162 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:27:11,194 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:27:11,195 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:27:11,240 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:27:11,242 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:27:11,303 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:27:11,305 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:27:11,380 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:27:11,381 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:27:11,468 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:27:11,469 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:27:11,571 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:27:11,573 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:27:11,691 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:27:11,693 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:27:11,832 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:27:11,834 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:27:11,957 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:27:11,957 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1789865529] [2021-03-11 14:27:11,957 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:27:11,958 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:27:11,958 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923884383] [2021-03-11 14:27:11,958 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:27:11,958 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:27:11,958 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:27:11,958 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:27:11,958 INFO L87 Difference]: Start difference. First operand 3116 states and 15537 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:27:12,488 WARN L205 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 38 [2021-03-11 14:27:12,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:27:12,531 INFO L93 Difference]: Finished difference Result 5999 states and 26758 transitions. [2021-03-11 14:27:12,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:27:12,535 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:27:12,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:27:12,549 INFO L225 Difference]: With dead ends: 5999 [2021-03-11 14:27:12,549 INFO L226 Difference]: Without dead ends: 5983 [2021-03-11 14:27:12,549 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 978.7ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:27:12,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5983 states. [2021-03-11 14:27:12,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5983 to 3126. [2021-03-11 14:27:12,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3126 states, 3125 states have (on average 4.9808) internal successors, (15565), 3125 states have internal predecessors, (15565), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:27:12,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3126 states to 3126 states and 15565 transitions. [2021-03-11 14:27:12,690 INFO L78 Accepts]: Start accepts. Automaton has 3126 states and 15565 transitions. Word has length 31 [2021-03-11 14:27:12,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:27:12,690 INFO L480 AbstractCegarLoop]: Abstraction has 3126 states and 15565 transitions. [2021-03-11 14:27:12,690 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:27:12,690 INFO L276 IsEmpty]: Start isEmpty. Operand 3126 states and 15565 transitions. [2021-03-11 14:27:12,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:27:12,695 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:27:12,695 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:27:12,696 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable687 [2021-03-11 14:27:12,696 INFO L428 AbstractCegarLoop]: === Iteration 689 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:27:12,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:27:12,696 INFO L82 PathProgramCache]: Analyzing trace with hash 1477579277, now seen corresponding path program 680 times [2021-03-11 14:27:12,696 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:27:12,696 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [902286939] [2021-03-11 14:27:12,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:27:12,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:27:12,708 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:27:12,709 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:27:12,711 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:27:12,712 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:27:12,731 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:27:12,733 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:27:12,765 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:27:12,767 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:27:12,812 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:27:12,814 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:27:12,875 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:27:12,876 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:27:12,950 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:27:12,951 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:27:13,037 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:27:13,038 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:27:13,137 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:27:13,138 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:27:13,248 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:27:13,250 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:27:13,377 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:27:13,378 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:27:13,489 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:27:13,490 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [902286939] [2021-03-11 14:27:13,490 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:27:13,490 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:27:13,490 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1776774919] [2021-03-11 14:27:13,490 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:27:13,490 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:27:13,490 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:27:13,490 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:27:13,490 INFO L87 Difference]: Start difference. First operand 3126 states and 15565 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:27:14,002 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 37 [2021-03-11 14:27:14,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:27:14,048 INFO L93 Difference]: Finished difference Result 6001 states and 26757 transitions. [2021-03-11 14:27:14,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:27:14,052 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:27:14,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:27:14,065 INFO L225 Difference]: With dead ends: 6001 [2021-03-11 14:27:14,065 INFO L226 Difference]: Without dead ends: 5978 [2021-03-11 14:27:14,065 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 922.4ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:27:14,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5978 states. [2021-03-11 14:27:14,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5978 to 3121. [2021-03-11 14:27:14,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3121 states, 3120 states have (on average 4.984294871794872) internal successors, (15551), 3120 states have internal predecessors, (15551), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:27:14,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3121 states to 3121 states and 15551 transitions. [2021-03-11 14:27:14,199 INFO L78 Accepts]: Start accepts. Automaton has 3121 states and 15551 transitions. Word has length 31 [2021-03-11 14:27:14,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:27:14,199 INFO L480 AbstractCegarLoop]: Abstraction has 3121 states and 15551 transitions. [2021-03-11 14:27:14,199 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:27:14,199 INFO L276 IsEmpty]: Start isEmpty. Operand 3121 states and 15551 transitions. [2021-03-11 14:27:14,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:27:14,204 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:27:14,204 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:27:14,204 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable688 [2021-03-11 14:27:14,204 INFO L428 AbstractCegarLoop]: === Iteration 690 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:27:14,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:27:14,204 INFO L82 PathProgramCache]: Analyzing trace with hash -1131096135, now seen corresponding path program 681 times [2021-03-11 14:27:14,204 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:27:14,204 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [979905420] [2021-03-11 14:27:14,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:27:14,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:27:14,216 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:27:14,217 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:27:14,219 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:27:14,220 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:27:14,237 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:27:14,238 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:27:14,266 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:27:14,267 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:27:14,308 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:27:14,309 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:27:14,364 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:27:14,365 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:27:14,433 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:27:14,434 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:27:14,514 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:27:14,515 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:27:14,607 INFO L142 QuantifierPusher]: treesize reduction 45, result has 59.1 percent of original size [2021-03-11 14:27:14,609 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:27:14,782 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 31 [2021-03-11 14:27:14,785 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:27:14,787 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:27:14,911 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:27:14,912 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:27:15,023 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:27:15,023 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [979905420] [2021-03-11 14:27:15,023 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:27:15,023 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:27:15,023 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [618724290] [2021-03-11 14:27:15,023 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:27:15,023 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:27:15,024 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:27:15,024 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:27:15,024 INFO L87 Difference]: Start difference. First operand 3121 states and 15551 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:27:15,533 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 38 [2021-03-11 14:27:15,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:27:15,572 INFO L93 Difference]: Finished difference Result 6000 states and 26755 transitions. [2021-03-11 14:27:15,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:27:15,575 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:27:15,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:27:15,589 INFO L225 Difference]: With dead ends: 6000 [2021-03-11 14:27:15,589 INFO L226 Difference]: Without dead ends: 5984 [2021-03-11 14:27:15,589 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 951.9ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:27:15,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5984 states. [2021-03-11 14:27:15,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5984 to 3126. [2021-03-11 14:27:15,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3126 states, 3125 states have (on average 4.9792) internal successors, (15560), 3125 states have internal predecessors, (15560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:27:15,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3126 states to 3126 states and 15560 transitions. [2021-03-11 14:27:15,723 INFO L78 Accepts]: Start accepts. Automaton has 3126 states and 15560 transitions. Word has length 31 [2021-03-11 14:27:15,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:27:15,723 INFO L480 AbstractCegarLoop]: Abstraction has 3126 states and 15560 transitions. [2021-03-11 14:27:15,723 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:27:15,723 INFO L276 IsEmpty]: Start isEmpty. Operand 3126 states and 15560 transitions. [2021-03-11 14:27:15,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:27:15,727 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:27:15,727 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:27:15,727 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable689 [2021-03-11 14:27:15,728 INFO L428 AbstractCegarLoop]: === Iteration 691 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:27:15,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:27:15,728 INFO L82 PathProgramCache]: Analyzing trace with hash -1060986099, now seen corresponding path program 682 times [2021-03-11 14:27:15,728 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:27:15,728 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [621282972] [2021-03-11 14:27:15,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:27:15,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:27:15,739 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:27:15,741 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:27:15,742 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:27:15,743 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:27:15,760 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:27:15,761 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:27:15,790 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:27:15,791 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:27:15,832 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:27:15,833 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:27:15,887 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:27:15,889 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:27:15,956 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:27:15,958 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:27:16,039 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:27:16,040 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:27:16,137 INFO L142 QuantifierPusher]: treesize reduction 45, result has 59.1 percent of original size [2021-03-11 14:27:16,138 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:27:16,316 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 31 [2021-03-11 14:27:16,320 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:27:16,321 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:27:16,454 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:27:16,455 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:27:16,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:27:16,567 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [621282972] [2021-03-11 14:27:16,567 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:27:16,567 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:27:16,567 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1441197824] [2021-03-11 14:27:16,567 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:27:16,567 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:27:16,567 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:27:16,567 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:27:16,567 INFO L87 Difference]: Start difference. First operand 3126 states and 15560 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:27:17,134 WARN L205 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 39 [2021-03-11 14:27:17,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:27:17,186 INFO L93 Difference]: Finished difference Result 6003 states and 26756 transitions. [2021-03-11 14:27:17,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:27:17,190 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:27:17,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:27:17,204 INFO L225 Difference]: With dead ends: 6003 [2021-03-11 14:27:17,204 INFO L226 Difference]: Without dead ends: 5979 [2021-03-11 14:27:17,205 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 994.7ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:27:17,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5979 states. [2021-03-11 14:27:17,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5979 to 3121. [2021-03-11 14:27:17,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3121 states, 3120 states have (on average 4.982692307692307) internal successors, (15546), 3120 states have internal predecessors, (15546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:27:17,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3121 states to 3121 states and 15546 transitions. [2021-03-11 14:27:17,345 INFO L78 Accepts]: Start accepts. Automaton has 3121 states and 15546 transitions. Word has length 31 [2021-03-11 14:27:17,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:27:17,345 INFO L480 AbstractCegarLoop]: Abstraction has 3121 states and 15546 transitions. [2021-03-11 14:27:17,345 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:27:17,345 INFO L276 IsEmpty]: Start isEmpty. Operand 3121 states and 15546 transitions. [2021-03-11 14:27:17,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:27:17,350 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:27:17,350 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:27:17,350 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable690 [2021-03-11 14:27:17,350 INFO L428 AbstractCegarLoop]: === Iteration 692 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:27:17,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:27:17,350 INFO L82 PathProgramCache]: Analyzing trace with hash -643976903, now seen corresponding path program 683 times [2021-03-11 14:27:17,350 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:27:17,350 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1139301375] [2021-03-11 14:27:17,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:27:17,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:27:17,362 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:27:17,363 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:27:17,365 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:27:17,366 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:27:17,383 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:27:17,384 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:27:17,415 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:27:17,416 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:27:17,457 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:27:17,459 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:27:17,513 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:27:17,515 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:27:17,582 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:27:17,583 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:27:17,664 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:27:17,666 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:27:17,758 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:27:17,759 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:27:17,870 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:27:17,871 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:27:17,999 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:27:18,000 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:27:18,116 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:27:18,116 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1139301375] [2021-03-11 14:27:18,117 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:27:18,117 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:27:18,117 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2070466836] [2021-03-11 14:27:18,117 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:27:18,117 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:27:18,117 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:27:18,117 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:27:18,117 INFO L87 Difference]: Start difference. First operand 3121 states and 15546 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:27:18,749 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 37 [2021-03-11 14:27:18,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:27:18,793 INFO L93 Difference]: Finished difference Result 6006 states and 26764 transitions. [2021-03-11 14:27:18,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:27:18,797 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:27:18,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:27:18,810 INFO L225 Difference]: With dead ends: 6006 [2021-03-11 14:27:18,810 INFO L226 Difference]: Without dead ends: 5988 [2021-03-11 14:27:18,810 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 899.2ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:27:18,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5988 states. [2021-03-11 14:27:18,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5988 to 3128. [2021-03-11 14:27:18,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3128 states, 3127 states have (on average 4.975695554844899) internal successors, (15559), 3127 states have internal predecessors, (15559), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:27:18,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3128 states to 3128 states and 15559 transitions. [2021-03-11 14:27:18,945 INFO L78 Accepts]: Start accepts. Automaton has 3128 states and 15559 transitions. Word has length 31 [2021-03-11 14:27:18,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:27:18,945 INFO L480 AbstractCegarLoop]: Abstraction has 3128 states and 15559 transitions. [2021-03-11 14:27:18,946 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:27:18,946 INFO L276 IsEmpty]: Start isEmpty. Operand 3128 states and 15559 transitions. [2021-03-11 14:27:18,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:27:18,950 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:27:18,950 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:27:18,950 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable691 [2021-03-11 14:27:18,950 INFO L428 AbstractCegarLoop]: === Iteration 693 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:27:18,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:27:18,951 INFO L82 PathProgramCache]: Analyzing trace with hash 1961047489, now seen corresponding path program 684 times [2021-03-11 14:27:18,951 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:27:18,951 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1100862976] [2021-03-11 14:27:18,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:27:18,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:27:18,962 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:27:18,964 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:27:18,965 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:27:18,966 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:27:18,983 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:27:18,985 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:27:19,013 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:27:19,015 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:27:19,056 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:27:19,057 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:27:19,114 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:27:19,115 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:27:19,181 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:27:19,183 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:27:19,261 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:27:19,263 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:27:19,354 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:27:19,355 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:27:19,467 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:27:19,469 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:27:19,597 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:27:19,598 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:27:19,713 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:27:19,713 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1100862976] [2021-03-11 14:27:19,713 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:27:19,713 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:27:19,713 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2023969633] [2021-03-11 14:27:19,713 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:27:19,713 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:27:19,713 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:27:19,713 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:27:19,713 INFO L87 Difference]: Start difference. First operand 3128 states and 15559 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:27:20,272 WARN L205 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 39 [2021-03-11 14:27:20,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:27:20,321 INFO L93 Difference]: Finished difference Result 6007 states and 26759 transitions. [2021-03-11 14:27:20,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:27:20,325 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:27:20,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:27:20,338 INFO L225 Difference]: With dead ends: 6007 [2021-03-11 14:27:20,338 INFO L226 Difference]: Without dead ends: 5976 [2021-03-11 14:27:20,338 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 916.9ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:27:20,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5976 states. [2021-03-11 14:27:20,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5976 to 3116. [2021-03-11 14:27:20,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3116 states, 3115 states have (on average 4.986195826645265) internal successors, (15532), 3115 states have internal predecessors, (15532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:27:20,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3116 states to 3116 states and 15532 transitions. [2021-03-11 14:27:20,474 INFO L78 Accepts]: Start accepts. Automaton has 3116 states and 15532 transitions. Word has length 31 [2021-03-11 14:27:20,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:27:20,474 INFO L480 AbstractCegarLoop]: Abstraction has 3116 states and 15532 transitions. [2021-03-11 14:27:20,474 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:27:20,474 INFO L276 IsEmpty]: Start isEmpty. Operand 3116 states and 15532 transitions. [2021-03-11 14:27:20,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:27:20,479 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:27:20,479 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:27:20,479 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable692 [2021-03-11 14:27:20,479 INFO L428 AbstractCegarLoop]: === Iteration 694 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:27:20,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:27:20,479 INFO L82 PathProgramCache]: Analyzing trace with hash 825423489, now seen corresponding path program 685 times [2021-03-11 14:27:20,479 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:27:20,479 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1295012556] [2021-03-11 14:27:20,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:27:20,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:27:20,491 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:27:20,492 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:27:20,494 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:27:20,495 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:27:20,512 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:27:20,514 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:27:20,543 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:27:20,544 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:27:20,586 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:27:20,588 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:27:20,644 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:27:20,646 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:27:20,713 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:27:20,715 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:27:20,794 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:27:20,796 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:27:20,950 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 27 [2021-03-11 14:27:20,953 INFO L142 QuantifierPusher]: treesize reduction 54, result has 55.4 percent of original size [2021-03-11 14:27:20,955 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-03-11 14:27:21,120 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 29 [2021-03-11 14:27:21,123 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:27:21,125 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:27:21,252 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:27:21,254 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:27:21,367 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:27:21,368 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1295012556] [2021-03-11 14:27:21,368 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:27:21,368 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:27:21,368 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1998546349] [2021-03-11 14:27:21,368 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:27:21,368 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:27:21,368 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:27:21,368 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:27:21,368 INFO L87 Difference]: Start difference. First operand 3116 states and 15532 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:27:22,083 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 38 [2021-03-11 14:27:22,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:27:22,124 INFO L93 Difference]: Finished difference Result 6012 states and 26779 transitions. [2021-03-11 14:27:22,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:27:22,128 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:27:22,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:27:22,141 INFO L225 Difference]: With dead ends: 6012 [2021-03-11 14:27:22,142 INFO L226 Difference]: Without dead ends: 5996 [2021-03-11 14:27:22,142 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 1030.0ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:27:22,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5996 states. [2021-03-11 14:27:22,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5996 to 3128. [2021-03-11 14:27:22,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3128 states, 3127 states have (on average 4.977614326830828) internal successors, (15565), 3127 states have internal predecessors, (15565), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:27:22,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3128 states to 3128 states and 15565 transitions. [2021-03-11 14:27:22,282 INFO L78 Accepts]: Start accepts. Automaton has 3128 states and 15565 transitions. Word has length 31 [2021-03-11 14:27:22,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:27:22,282 INFO L480 AbstractCegarLoop]: Abstraction has 3128 states and 15565 transitions. [2021-03-11 14:27:22,282 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:27:22,283 INFO L276 IsEmpty]: Start isEmpty. Operand 3128 states and 15565 transitions. [2021-03-11 14:27:22,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:27:22,288 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:27:22,288 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:27:22,288 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable693 [2021-03-11 14:27:22,288 INFO L428 AbstractCegarLoop]: === Iteration 695 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:27:22,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:27:22,288 INFO L82 PathProgramCache]: Analyzing trace with hash 1318019251, now seen corresponding path program 686 times [2021-03-11 14:27:22,288 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:27:22,288 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [974387766] [2021-03-11 14:27:22,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:27:22,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:27:22,300 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:27:22,301 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:27:22,303 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:27:22,304 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:27:22,323 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:27:22,325 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:27:22,357 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:27:22,358 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:27:22,407 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:27:22,409 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:27:22,470 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:27:22,471 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:27:22,546 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:27:22,547 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:27:22,676 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:27:22,677 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:27:22,851 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 27 [2021-03-11 14:27:22,855 INFO L142 QuantifierPusher]: treesize reduction 54, result has 55.4 percent of original size [2021-03-11 14:27:22,856 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-03-11 14:27:23,031 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 29 [2021-03-11 14:27:23,035 INFO L142 QuantifierPusher]: treesize reduction 72, result has 49.7 percent of original size [2021-03-11 14:27:23,037 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-03-11 14:27:23,179 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:27:23,181 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:27:23,303 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:27:23,303 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [974387766] [2021-03-11 14:27:23,303 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:27:23,303 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:27:23,303 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1825041211] [2021-03-11 14:27:23,304 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:27:23,304 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:27:23,304 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:27:23,304 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:27:23,304 INFO L87 Difference]: Start difference. First operand 3128 states and 15565 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:27:23,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:27:23,861 INFO L93 Difference]: Finished difference Result 6018 states and 26785 transitions. [2021-03-11 14:27:23,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:27:23,866 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:27:23,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:27:23,879 INFO L225 Difference]: With dead ends: 6018 [2021-03-11 14:27:23,879 INFO L226 Difference]: Without dead ends: 5990 [2021-03-11 14:27:23,879 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 1073.5ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:27:23,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5990 states. [2021-03-11 14:27:24,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5990 to 3122. [2021-03-11 14:27:24,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3122 states, 3121 states have (on average 4.981736622877283) internal successors, (15548), 3121 states have internal predecessors, (15548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:27:24,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3122 states to 3122 states and 15548 transitions. [2021-03-11 14:27:24,022 INFO L78 Accepts]: Start accepts. Automaton has 3122 states and 15548 transitions. Word has length 31 [2021-03-11 14:27:24,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:27:24,023 INFO L480 AbstractCegarLoop]: Abstraction has 3122 states and 15548 transitions. [2021-03-11 14:27:24,023 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:27:24,023 INFO L276 IsEmpty]: Start isEmpty. Operand 3122 states and 15548 transitions. [2021-03-11 14:27:24,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:27:24,028 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:27:24,028 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:27:24,028 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable694 [2021-03-11 14:27:24,028 INFO L428 AbstractCegarLoop]: === Iteration 696 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:27:24,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:27:24,028 INFO L82 PathProgramCache]: Analyzing trace with hash 613267871, now seen corresponding path program 687 times [2021-03-11 14:27:24,028 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:27:24,028 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1907887877] [2021-03-11 14:27:24,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:27:24,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:27:24,040 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:27:24,041 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:27:24,043 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:27:24,044 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:27:24,063 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:27:24,064 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:27:24,095 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:27:24,097 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:27:24,141 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:27:24,143 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:27:24,203 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:27:24,204 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:27:24,277 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:27:24,279 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:27:24,363 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:27:24,365 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:27:24,524 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 27 [2021-03-11 14:27:24,527 INFO L142 QuantifierPusher]: treesize reduction 45, result has 59.1 percent of original size [2021-03-11 14:27:24,529 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:27:24,702 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 31 [2021-03-11 14:27:24,705 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:27:24,706 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:27:24,830 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:27:24,832 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:27:24,945 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:27:24,945 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1907887877] [2021-03-11 14:27:24,945 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:27:24,945 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:27:24,945 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1928472277] [2021-03-11 14:27:24,946 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:27:24,946 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:27:24,946 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:27:24,946 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:27:24,946 INFO L87 Difference]: Start difference. First operand 3122 states and 15548 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:27:25,543 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 38 [2021-03-11 14:27:25,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:27:25,582 INFO L93 Difference]: Finished difference Result 6008 states and 26766 transitions. [2021-03-11 14:27:25,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:27:25,586 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:27:25,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:27:25,599 INFO L225 Difference]: With dead ends: 6008 [2021-03-11 14:27:25,599 INFO L226 Difference]: Without dead ends: 5992 [2021-03-11 14:27:25,600 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 1055.7ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:27:25,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5992 states. [2021-03-11 14:27:25,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5992 to 3127. [2021-03-11 14:27:25,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3127 states, 3126 states have (on average 4.976647472808701) internal successors, (15557), 3126 states have internal predecessors, (15557), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:27:25,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3127 states to 3127 states and 15557 transitions. [2021-03-11 14:27:25,735 INFO L78 Accepts]: Start accepts. Automaton has 3127 states and 15557 transitions. Word has length 31 [2021-03-11 14:27:25,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:27:25,735 INFO L480 AbstractCegarLoop]: Abstraction has 3127 states and 15557 transitions. [2021-03-11 14:27:25,735 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:27:25,735 INFO L276 IsEmpty]: Start isEmpty. Operand 3127 states and 15557 transitions. [2021-03-11 14:27:25,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:27:25,740 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:27:25,740 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:27:25,740 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable695 [2021-03-11 14:27:25,740 INFO L428 AbstractCegarLoop]: === Iteration 697 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:27:25,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:27:25,740 INFO L82 PathProgramCache]: Analyzing trace with hash 683377907, now seen corresponding path program 688 times [2021-03-11 14:27:25,740 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:27:25,740 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [161949481] [2021-03-11 14:27:25,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:27:25,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:27:25,758 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:27:25,759 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:27:25,761 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:27:25,762 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:27:25,783 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:27:25,784 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:27:25,819 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:27:25,821 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:27:25,871 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:27:25,873 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:27:25,938 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:27:25,940 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:27:26,021 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:27:26,023 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:27:26,119 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:27:26,121 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:27:26,285 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 27 [2021-03-11 14:27:26,288 INFO L142 QuantifierPusher]: treesize reduction 45, result has 59.1 percent of original size [2021-03-11 14:27:26,290 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:27:26,469 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 31 [2021-03-11 14:27:26,473 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:27:26,474 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:27:26,600 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:27:26,602 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:27:26,715 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:27:26,715 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [161949481] [2021-03-11 14:27:26,715 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:27:26,715 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:27:26,715 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [32454082] [2021-03-11 14:27:26,715 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:27:26,715 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:27:26,716 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:27:26,716 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:27:26,716 INFO L87 Difference]: Start difference. First operand 3127 states and 15557 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:27:27,321 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 39 [2021-03-11 14:27:27,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:27:27,373 INFO L93 Difference]: Finished difference Result 6011 states and 26767 transitions. [2021-03-11 14:27:27,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:27:27,378 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:27:27,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:27:27,391 INFO L225 Difference]: With dead ends: 6011 [2021-03-11 14:27:27,391 INFO L226 Difference]: Without dead ends: 5987 [2021-03-11 14:27:27,391 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 1108.1ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:27:27,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5987 states. [2021-03-11 14:27:27,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5987 to 3122. [2021-03-11 14:27:27,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3122 states, 3121 states have (on average 4.980134572252483) internal successors, (15543), 3121 states have internal predecessors, (15543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:27:27,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3122 states to 3122 states and 15543 transitions. [2021-03-11 14:27:27,528 INFO L78 Accepts]: Start accepts. Automaton has 3122 states and 15543 transitions. Word has length 31 [2021-03-11 14:27:27,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:27:27,528 INFO L480 AbstractCegarLoop]: Abstraction has 3122 states and 15543 transitions. [2021-03-11 14:27:27,528 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:27:27,528 INFO L276 IsEmpty]: Start isEmpty. Operand 3122 states and 15543 transitions. [2021-03-11 14:27:27,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:27:27,532 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:27:27,532 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:27:27,532 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable696 [2021-03-11 14:27:27,532 INFO L428 AbstractCegarLoop]: === Iteration 698 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:27:27,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:27:27,533 INFO L82 PathProgramCache]: Analyzing trace with hash -803536929, now seen corresponding path program 689 times [2021-03-11 14:27:27,533 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:27:27,533 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [415121492] [2021-03-11 14:27:27,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:27:27,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:27:27,545 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:27:27,546 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:27:27,547 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:27:27,549 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:27:27,566 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:27:27,567 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:27:27,595 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:27:27,596 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:27:27,637 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:27:27,638 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:27:27,692 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:27:27,693 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:27:27,761 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:27:27,763 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:27:27,842 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:27:27,843 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:27:28,001 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 27 [2021-03-11 14:27:28,004 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:27:28,006 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:27:28,122 INFO L142 QuantifierPusher]: treesize reduction 72, result has 49.7 percent of original size [2021-03-11 14:27:28,123 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-03-11 14:27:28,254 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:27:28,255 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:27:28,367 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:27:28,367 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [415121492] [2021-03-11 14:27:28,367 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:27:28,367 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:27:28,367 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2031153104] [2021-03-11 14:27:28,367 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:27:28,367 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:27:28,367 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:27:28,367 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:27:28,367 INFO L87 Difference]: Start difference. First operand 3122 states and 15543 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:27:29,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:27:29,008 INFO L93 Difference]: Finished difference Result 6024 states and 26794 transitions. [2021-03-11 14:27:29,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:27:29,011 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:27:29,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:27:29,024 INFO L225 Difference]: With dead ends: 6024 [2021-03-11 14:27:29,025 INFO L226 Difference]: Without dead ends: 6002 [2021-03-11 14:27:29,025 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 887.6ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:27:29,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6002 states. [2021-03-11 14:27:29,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6002 to 3131. [2021-03-11 14:27:29,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3131 states, 3130 states have (on average 4.970926517571885) internal successors, (15559), 3130 states have internal predecessors, (15559), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:27:29,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3131 states to 3131 states and 15559 transitions. [2021-03-11 14:27:29,159 INFO L78 Accepts]: Start accepts. Automaton has 3131 states and 15559 transitions. Word has length 31 [2021-03-11 14:27:29,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:27:29,159 INFO L480 AbstractCegarLoop]: Abstraction has 3131 states and 15559 transitions. [2021-03-11 14:27:29,159 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:27:29,159 INFO L276 IsEmpty]: Start isEmpty. Operand 3131 states and 15559 transitions. [2021-03-11 14:27:29,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:27:29,163 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:27:29,164 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:27:29,164 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable697 [2021-03-11 14:27:29,164 INFO L428 AbstractCegarLoop]: === Iteration 699 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:27:29,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:27:29,164 INFO L82 PathProgramCache]: Analyzing trace with hash -1226022655, now seen corresponding path program 690 times [2021-03-11 14:27:29,164 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:27:29,164 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1390240813] [2021-03-11 14:27:29,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:27:29,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:27:29,176 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:27:29,177 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:27:29,178 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:27:29,180 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:27:29,197 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:27:29,198 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:27:29,226 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:27:29,227 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:27:29,268 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:27:29,269 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:27:29,323 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:27:29,325 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:27:29,391 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:27:29,392 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:27:29,470 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:27:29,472 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:27:29,625 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 27 [2021-03-11 14:27:29,628 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:27:29,629 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:27:29,743 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:27:29,744 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:27:29,871 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:27:29,873 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:27:29,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:27:29,986 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1390240813] [2021-03-11 14:27:29,986 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:27:29,986 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:27:29,986 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1837126940] [2021-03-11 14:27:29,987 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:27:29,987 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:27:29,987 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:27:29,987 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:27:29,987 INFO L87 Difference]: Start difference. First operand 3131 states and 15559 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:27:30,671 WARN L205 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 39 [2021-03-11 14:27:30,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:27:30,734 INFO L93 Difference]: Finished difference Result 6021 states and 26780 transitions. [2021-03-11 14:27:30,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:27:30,738 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:27:30,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:27:30,751 INFO L225 Difference]: With dead ends: 6021 [2021-03-11 14:27:30,752 INFO L226 Difference]: Without dead ends: 5987 [2021-03-11 14:27:30,752 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 970.3ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:27:30,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5987 states. [2021-03-11 14:27:30,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5987 to 3116. [2021-03-11 14:27:30,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3116 states, 3115 states have (on average 4.984269662921348) internal successors, (15526), 3115 states have internal predecessors, (15526), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:27:30,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3116 states to 3116 states and 15526 transitions. [2021-03-11 14:27:30,887 INFO L78 Accepts]: Start accepts. Automaton has 3116 states and 15526 transitions. Word has length 31 [2021-03-11 14:27:30,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:27:30,887 INFO L480 AbstractCegarLoop]: Abstraction has 3116 states and 15526 transitions. [2021-03-11 14:27:30,887 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:27:30,887 INFO L276 IsEmpty]: Start isEmpty. Operand 3116 states and 15526 transitions. [2021-03-11 14:27:30,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:27:30,892 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:27:30,892 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:27:30,892 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable698 [2021-03-11 14:27:30,892 INFO L428 AbstractCegarLoop]: === Iteration 700 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:27:30,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:27:30,892 INFO L82 PathProgramCache]: Analyzing trace with hash 506303437, now seen corresponding path program 691 times [2021-03-11 14:27:30,892 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:27:30,892 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [303896758] [2021-03-11 14:27:30,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:27:30,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:27:30,905 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:27:30,906 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:27:30,908 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:27:30,909 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:27:30,926 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:27:30,928 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:27:30,957 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:27:30,959 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:27:31,003 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:27:31,004 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:27:31,063 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:27:31,065 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:27:31,139 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:27:31,140 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:27:31,222 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:27:31,224 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:27:31,323 INFO L142 QuantifierPusher]: treesize reduction 54, result has 55.4 percent of original size [2021-03-11 14:27:31,325 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-03-11 14:27:31,514 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 33 [2021-03-11 14:27:31,518 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:27:31,519 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:27:31,646 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:27:31,648 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:27:31,765 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:27:31,765 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [303896758] [2021-03-11 14:27:31,765 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:27:31,765 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:27:31,765 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1366212337] [2021-03-11 14:27:31,765 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:27:31,765 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:27:31,765 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:27:31,765 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:27:31,766 INFO L87 Difference]: Start difference. First operand 3116 states and 15526 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:27:32,277 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 37 [2021-03-11 14:27:32,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:27:32,323 INFO L93 Difference]: Finished difference Result 6026 states and 26811 transitions. [2021-03-11 14:27:32,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:27:32,327 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:27:32,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:27:32,340 INFO L225 Difference]: With dead ends: 6026 [2021-03-11 14:27:32,340 INFO L226 Difference]: Without dead ends: 6008 [2021-03-11 14:27:32,340 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 1012.0ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:27:32,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6008 states. [2021-03-11 14:27:32,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6008 to 3132. [2021-03-11 14:27:32,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3132 states, 3131 states have (on average 4.973171510699457) internal successors, (15571), 3131 states have internal predecessors, (15571), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:27:32,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3132 states to 3132 states and 15571 transitions. [2021-03-11 14:27:32,481 INFO L78 Accepts]: Start accepts. Automaton has 3132 states and 15571 transitions. Word has length 31 [2021-03-11 14:27:32,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:27:32,481 INFO L480 AbstractCegarLoop]: Abstraction has 3132 states and 15571 transitions. [2021-03-11 14:27:32,481 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:27:32,481 INFO L276 IsEmpty]: Start isEmpty. Operand 3132 states and 15571 transitions. [2021-03-11 14:27:32,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:27:32,486 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:27:32,486 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:27:32,486 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable699 [2021-03-11 14:27:32,486 INFO L428 AbstractCegarLoop]: === Iteration 701 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:27:32,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:27:32,486 INFO L82 PathProgramCache]: Analyzing trace with hash -761153741, now seen corresponding path program 692 times [2021-03-11 14:27:32,486 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:27:32,486 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [529495186] [2021-03-11 14:27:32,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:27:32,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:27:32,498 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:27:32,500 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:27:32,501 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:27:32,502 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:27:32,521 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:27:32,522 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:27:32,554 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:27:32,556 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:27:32,600 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:27:32,602 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:27:32,658 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:27:32,659 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:27:32,727 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:27:32,728 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:27:32,807 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:27:32,809 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:27:32,909 INFO L142 QuantifierPusher]: treesize reduction 54, result has 55.4 percent of original size [2021-03-11 14:27:32,910 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-03-11 14:27:33,095 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 33 [2021-03-11 14:27:33,099 INFO L142 QuantifierPusher]: treesize reduction 72, result has 49.7 percent of original size [2021-03-11 14:27:33,100 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-03-11 14:27:33,229 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:27:33,231 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:27:33,342 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:27:33,342 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [529495186] [2021-03-11 14:27:33,343 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:27:33,343 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:27:33,343 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1426180823] [2021-03-11 14:27:33,343 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:27:33,343 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:27:33,343 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:27:33,343 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:27:33,343 INFO L87 Difference]: Start difference. First operand 3132 states and 15571 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:27:33,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:27:33,798 INFO L93 Difference]: Finished difference Result 6030 states and 26811 transitions. [2021-03-11 14:27:33,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:27:33,802 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:27:33,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:27:33,815 INFO L225 Difference]: With dead ends: 6030 [2021-03-11 14:27:33,815 INFO L226 Difference]: Without dead ends: 6000 [2021-03-11 14:27:33,815 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 909.7ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:27:33,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6000 states. [2021-03-11 14:27:33,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6000 to 3124. [2021-03-11 14:27:33,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3124 states, 3123 states have (on average 4.978546269612552) internal successors, (15548), 3123 states have internal predecessors, (15548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:27:33,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3124 states to 3124 states and 15548 transitions. [2021-03-11 14:27:33,950 INFO L78 Accepts]: Start accepts. Automaton has 3124 states and 15548 transitions. Word has length 31 [2021-03-11 14:27:33,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:27:33,950 INFO L480 AbstractCegarLoop]: Abstraction has 3124 states and 15548 transitions. [2021-03-11 14:27:33,950 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:27:33,950 INFO L276 IsEmpty]: Start isEmpty. Operand 3124 states and 15548 transitions. [2021-03-11 14:27:33,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:27:33,955 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:27:33,955 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:27:33,955 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable700 [2021-03-11 14:27:33,955 INFO L428 AbstractCegarLoop]: === Iteration 702 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:27:33,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:27:33,955 INFO L82 PathProgramCache]: Analyzing trace with hash 294147819, now seen corresponding path program 693 times [2021-03-11 14:27:33,955 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:27:33,955 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1619381715] [2021-03-11 14:27:33,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:27:33,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:27:33,967 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:27:33,968 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:27:33,970 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:27:33,971 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:27:33,988 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:27:33,989 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:27:34,018 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:27:34,019 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:27:34,060 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:27:34,062 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:27:34,118 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:27:34,119 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:27:34,186 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:27:34,187 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:27:34,267 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:27:34,268 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:27:34,366 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:27:34,368 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:27:34,478 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:27:34,480 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:27:34,606 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:27:34,608 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:27:34,722 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:27:34,722 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1619381715] [2021-03-11 14:27:34,723 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:27:34,723 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:27:34,723 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [574058821] [2021-03-11 14:27:34,723 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:27:34,723 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:27:34,723 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:27:34,723 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:27:34,723 INFO L87 Difference]: Start difference. First operand 3124 states and 15548 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:27:35,462 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 37 [2021-03-11 14:27:35,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:27:35,508 INFO L93 Difference]: Finished difference Result 6022 states and 26796 transitions. [2021-03-11 14:27:35,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:27:35,512 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:27:35,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:27:35,525 INFO L225 Difference]: With dead ends: 6022 [2021-03-11 14:27:35,525 INFO L226 Difference]: Without dead ends: 6004 [2021-03-11 14:27:35,525 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 911.1ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:27:35,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6004 states. [2021-03-11 14:27:35,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6004 to 3131. [2021-03-11 14:27:35,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3131 states, 3130 states have (on average 4.971565495207668) internal successors, (15561), 3130 states have internal predecessors, (15561), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:27:35,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3131 states to 3131 states and 15561 transitions. [2021-03-11 14:27:35,660 INFO L78 Accepts]: Start accepts. Automaton has 3131 states and 15561 transitions. Word has length 31 [2021-03-11 14:27:35,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:27:35,660 INFO L480 AbstractCegarLoop]: Abstraction has 3131 states and 15561 transitions. [2021-03-11 14:27:35,660 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:27:35,660 INFO L276 IsEmpty]: Start isEmpty. Operand 3131 states and 15561 transitions. [2021-03-11 14:27:35,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:27:35,666 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:27:35,666 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:27:35,666 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable701 [2021-03-11 14:27:35,666 INFO L428 AbstractCegarLoop]: === Iteration 703 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:27:35,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:27:35,666 INFO L82 PathProgramCache]: Analyzing trace with hash -1395795085, now seen corresponding path program 694 times [2021-03-11 14:27:35,666 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:27:35,666 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [641332001] [2021-03-11 14:27:35,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:27:35,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:27:35,678 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:27:35,679 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:27:35,681 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:27:35,682 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:27:35,699 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:27:35,700 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:27:35,730 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:27:35,732 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:27:35,773 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:27:35,775 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:27:35,829 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:27:35,830 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:27:35,897 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:27:35,898 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:27:35,977 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:27:35,978 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:27:36,076 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:27:36,077 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:27:36,188 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:27:36,190 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:27:36,317 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:27:36,318 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:27:36,430 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:27:36,430 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [641332001] [2021-03-11 14:27:36,431 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:27:36,431 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:27:36,431 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [528334528] [2021-03-11 14:27:36,431 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:27:36,431 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:27:36,431 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:27:36,431 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:27:36,431 INFO L87 Difference]: Start difference. First operand 3131 states and 15561 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:27:37,067 WARN L205 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 39 [2021-03-11 14:27:37,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:27:37,116 INFO L93 Difference]: Finished difference Result 6023 states and 26791 transitions. [2021-03-11 14:27:37,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:27:37,120 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:27:37,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:27:37,133 INFO L225 Difference]: With dead ends: 6023 [2021-03-11 14:27:37,133 INFO L226 Difference]: Without dead ends: 5997 [2021-03-11 14:27:37,134 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 909.7ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:27:37,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5997 states. [2021-03-11 14:27:37,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5997 to 3124. [2021-03-11 14:27:37,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3124 states, 3123 states have (on average 4.97630483509446) internal successors, (15541), 3123 states have internal predecessors, (15541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:27:37,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3124 states to 3124 states and 15541 transitions. [2021-03-11 14:27:37,269 INFO L78 Accepts]: Start accepts. Automaton has 3124 states and 15541 transitions. Word has length 31 [2021-03-11 14:27:37,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:27:37,269 INFO L480 AbstractCegarLoop]: Abstraction has 3124 states and 15541 transitions. [2021-03-11 14:27:37,269 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:27:37,269 INFO L276 IsEmpty]: Start isEmpty. Operand 3124 states and 15541 transitions. [2021-03-11 14:27:37,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:27:37,273 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:27:37,273 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:27:37,274 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable702 [2021-03-11 14:27:37,274 INFO L428 AbstractCegarLoop]: === Iteration 704 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:27:37,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:27:37,274 INFO L82 PathProgramCache]: Analyzing trace with hash -1609776213, now seen corresponding path program 695 times [2021-03-11 14:27:37,274 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:27:37,274 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1345610293] [2021-03-11 14:27:37,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:27:37,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:27:37,286 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:27:37,288 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:27:37,289 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:27:37,290 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:27:37,308 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:27:37,310 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:27:37,341 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:27:37,342 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:27:37,384 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:27:37,385 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:27:37,440 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:27:37,441 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:27:37,508 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:27:37,510 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:27:37,593 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:27:37,594 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:27:37,694 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:27:37,695 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:27:37,807 INFO L142 QuantifierPusher]: treesize reduction 72, result has 49.7 percent of original size [2021-03-11 14:27:37,808 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-03-11 14:27:37,940 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:27:37,942 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:27:38,054 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:27:38,055 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1345610293] [2021-03-11 14:27:38,055 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:27:38,055 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:27:38,055 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1806703959] [2021-03-11 14:27:38,055 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:27:38,055 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:27:38,055 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:27:38,055 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:27:38,055 INFO L87 Difference]: Start difference. First operand 3124 states and 15541 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:27:38,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:27:38,841 INFO L93 Difference]: Finished difference Result 6032 states and 26808 transitions. [2021-03-11 14:27:38,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:27:38,845 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:27:38,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:27:38,858 INFO L225 Difference]: With dead ends: 6032 [2021-03-11 14:27:38,858 INFO L226 Difference]: Without dead ends: 6010 [2021-03-11 14:27:38,858 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 834.6ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:27:38,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6010 states. [2021-03-11 14:27:38,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6010 to 3133. [2021-03-11 14:27:38,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3133 states, 3132 states have (on average 4.967113665389528) internal successors, (15557), 3132 states have internal predecessors, (15557), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:27:38,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3133 states to 3133 states and 15557 transitions. [2021-03-11 14:27:38,993 INFO L78 Accepts]: Start accepts. Automaton has 3133 states and 15557 transitions. Word has length 31 [2021-03-11 14:27:38,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:27:38,993 INFO L480 AbstractCegarLoop]: Abstraction has 3133 states and 15557 transitions. [2021-03-11 14:27:38,993 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:27:38,993 INFO L276 IsEmpty]: Start isEmpty. Operand 3133 states and 15557 transitions. [2021-03-11 14:27:38,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:27:38,998 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:27:38,998 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:27:38,998 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable703 [2021-03-11 14:27:38,998 INFO L428 AbstractCegarLoop]: === Iteration 705 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:27:38,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:27:38,999 INFO L82 PathProgramCache]: Analyzing trace with hash -2032261939, now seen corresponding path program 696 times [2021-03-11 14:27:38,999 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:27:38,999 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [48333172] [2021-03-11 14:27:38,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:27:39,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:27:39,011 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:27:39,012 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:27:39,013 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:27:39,015 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:27:39,032 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:27:39,034 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:27:39,063 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:27:39,065 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:27:39,108 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:27:39,109 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:27:39,166 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:27:39,168 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:27:39,236 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:27:39,237 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:27:39,317 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:27:39,318 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:27:39,417 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:27:39,418 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:27:39,531 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:27:39,532 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:27:39,662 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:27:39,664 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:27:39,779 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:27:39,779 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [48333172] [2021-03-11 14:27:39,779 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:27:39,779 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:27:39,779 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [646581345] [2021-03-11 14:27:39,780 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:27:39,780 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:27:39,780 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:27:39,780 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:27:39,780 INFO L87 Difference]: Start difference. First operand 3133 states and 15557 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:27:40,455 WARN L205 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 39 [2021-03-11 14:27:40,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:27:40,524 INFO L93 Difference]: Finished difference Result 6029 states and 26794 transitions. [2021-03-11 14:27:40,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:27:40,528 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:27:40,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:27:40,541 INFO L225 Difference]: With dead ends: 6029 [2021-03-11 14:27:40,541 INFO L226 Difference]: Without dead ends: 5987 [2021-03-11 14:27:40,541 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 935.5ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:27:40,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5987 states. [2021-03-11 14:27:40,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5987 to 3110. [2021-03-11 14:27:40,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3110 states, 3109 states have (on average 4.988420714055967) internal successors, (15509), 3109 states have internal predecessors, (15509), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:27:40,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3110 states to 3110 states and 15509 transitions. [2021-03-11 14:27:40,677 INFO L78 Accepts]: Start accepts. Automaton has 3110 states and 15509 transitions. Word has length 31 [2021-03-11 14:27:40,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:27:40,677 INFO L480 AbstractCegarLoop]: Abstraction has 3110 states and 15509 transitions. [2021-03-11 14:27:40,677 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:27:40,677 INFO L276 IsEmpty]: Start isEmpty. Operand 3110 states and 15509 transitions. [2021-03-11 14:27:40,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:27:40,681 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:27:40,681 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:27:40,682 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable704 [2021-03-11 14:27:40,682 INFO L428 AbstractCegarLoop]: === Iteration 706 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:27:40,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:27:40,682 INFO L82 PathProgramCache]: Analyzing trace with hash -559084385, now seen corresponding path program 697 times [2021-03-11 14:27:40,682 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:27:40,682 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1514559380] [2021-03-11 14:27:40,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:27:40,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:27:40,694 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:27:40,695 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:27:40,697 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:27:40,698 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:27:40,716 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:27:40,717 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:27:40,747 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:27:40,748 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:27:40,791 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:27:40,792 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:27:40,848 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:27:40,849 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:27:40,920 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:27:40,922 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:27:41,013 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:27:41,014 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:27:41,189 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 29 [2021-03-11 14:27:41,193 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:27:41,194 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:27:41,316 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:27:41,318 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:27:41,459 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:27:41,460 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:27:41,586 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:27:41,586 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1514559380] [2021-03-11 14:27:41,586 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:27:41,586 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:27:41,586 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [22285543] [2021-03-11 14:27:41,587 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:27:41,587 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:27:41,587 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:27:41,587 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:27:41,587 INFO L87 Difference]: Start difference. First operand 3110 states and 15509 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:27:42,482 WARN L205 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 38 [2021-03-11 14:27:42,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:27:42,530 INFO L93 Difference]: Finished difference Result 6020 states and 26817 transitions. [2021-03-11 14:27:42,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:27:42,534 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:27:42,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:27:42,548 INFO L225 Difference]: With dead ends: 6020 [2021-03-11 14:27:42,548 INFO L226 Difference]: Without dead ends: 6003 [2021-03-11 14:27:42,548 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 1056.6ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:27:42,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6003 states. [2021-03-11 14:27:42,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6003 to 3130. [2021-03-11 14:27:42,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3130 states, 3129 states have (on average 4.978906999041227) internal successors, (15579), 3129 states have internal predecessors, (15579), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:27:42,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3130 states to 3130 states and 15579 transitions. [2021-03-11 14:27:42,691 INFO L78 Accepts]: Start accepts. Automaton has 3130 states and 15579 transitions. Word has length 31 [2021-03-11 14:27:42,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:27:42,691 INFO L480 AbstractCegarLoop]: Abstraction has 3130 states and 15579 transitions. [2021-03-11 14:27:42,691 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:27:42,691 INFO L276 IsEmpty]: Start isEmpty. Operand 3130 states and 15579 transitions. [2021-03-11 14:27:42,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:27:42,696 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:27:42,696 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:27:42,696 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable705 [2021-03-11 14:27:42,696 INFO L428 AbstractCegarLoop]: === Iteration 707 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:27:42,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:27:42,696 INFO L82 PathProgramCache]: Analyzing trace with hash -1404055837, now seen corresponding path program 698 times [2021-03-11 14:27:42,696 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:27:42,696 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2106829133] [2021-03-11 14:27:42,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:27:42,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:27:42,708 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:27:42,710 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:27:42,711 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:27:42,713 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:27:42,732 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:27:42,733 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:27:42,766 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:27:42,767 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:27:42,815 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:27:42,817 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:27:42,879 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:27:42,880 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:27:42,956 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:27:42,958 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:27:43,049 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:27:43,051 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:27:43,231 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 29 [2021-03-11 14:27:43,234 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:27:43,235 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:27:43,347 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:27:43,348 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:27:43,479 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:27:43,481 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:27:43,600 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:27:43,600 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2106829133] [2021-03-11 14:27:43,600 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:27:43,600 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:27:43,600 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1847033565] [2021-03-11 14:27:43,600 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:27:43,600 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:27:43,600 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:27:43,600 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:27:43,601 INFO L87 Difference]: Start difference. First operand 3130 states and 15579 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:27:44,145 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 38 [2021-03-11 14:27:44,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:27:44,195 INFO L93 Difference]: Finished difference Result 6021 states and 26813 transitions. [2021-03-11 14:27:44,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:27:44,199 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:27:44,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:27:44,212 INFO L225 Difference]: With dead ends: 6021 [2021-03-11 14:27:44,212 INFO L226 Difference]: Without dead ends: 5997 [2021-03-11 14:27:44,212 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 1037.0ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:27:44,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5997 states. [2021-03-11 14:27:44,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5997 to 3124. [2021-03-11 14:27:44,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3124 states, 3123 states have (on average 4.983029138648735) internal successors, (15562), 3123 states have internal predecessors, (15562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:27:44,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3124 states to 3124 states and 15562 transitions. [2021-03-11 14:27:44,347 INFO L78 Accepts]: Start accepts. Automaton has 3124 states and 15562 transitions. Word has length 31 [2021-03-11 14:27:44,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:27:44,347 INFO L480 AbstractCegarLoop]: Abstraction has 3124 states and 15562 transitions. [2021-03-11 14:27:44,347 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:27:44,347 INFO L276 IsEmpty]: Start isEmpty. Operand 3124 states and 15562 transitions. [2021-03-11 14:27:44,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:27:44,352 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:27:44,352 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:27:44,352 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable706 [2021-03-11 14:27:44,352 INFO L428 AbstractCegarLoop]: === Iteration 708 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:27:44,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:27:44,352 INFO L82 PathProgramCache]: Analyzing trace with hash -1195551239, now seen corresponding path program 699 times [2021-03-11 14:27:44,352 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:27:44,352 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [285350765] [2021-03-11 14:27:44,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:27:44,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:27:44,364 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:27:44,366 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:27:44,367 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:27:44,368 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:27:44,386 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:27:44,387 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:27:44,417 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:27:44,418 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:27:44,461 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:27:44,462 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:27:44,519 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:27:44,520 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:27:44,591 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:27:44,593 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:27:44,675 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:27:44,677 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:27:44,835 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 29 [2021-03-11 14:27:44,838 INFO L142 QuantifierPusher]: treesize reduction 54, result has 55.4 percent of original size [2021-03-11 14:27:44,840 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-03-11 14:27:45,021 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 32 [2021-03-11 14:27:45,025 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:27:45,026 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:27:45,158 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:27:45,160 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:27:45,276 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:27:45,276 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [285350765] [2021-03-11 14:27:45,276 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:27:45,276 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:27:45,276 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1212775402] [2021-03-11 14:27:45,277 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:27:45,277 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:27:45,277 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:27:45,277 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:27:45,277 INFO L87 Difference]: Start difference. First operand 3124 states and 15562 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:27:45,738 WARN L205 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 38 [2021-03-11 14:27:45,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:27:45,781 INFO L93 Difference]: Finished difference Result 6025 states and 26820 transitions. [2021-03-11 14:27:45,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:27:45,785 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:27:45,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:27:45,798 INFO L225 Difference]: With dead ends: 6025 [2021-03-11 14:27:45,798 INFO L226 Difference]: Without dead ends: 6008 [2021-03-11 14:27:45,798 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 1060.8ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:27:45,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6008 states. [2021-03-11 14:27:45,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6008 to 3131. [2021-03-11 14:27:45,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3131 states, 3130 states have (on average 4.976038338658147) internal successors, (15575), 3130 states have internal predecessors, (15575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:27:45,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3131 states to 3131 states and 15575 transitions. [2021-03-11 14:27:45,933 INFO L78 Accepts]: Start accepts. Automaton has 3131 states and 15575 transitions. Word has length 31 [2021-03-11 14:27:45,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:27:45,933 INFO L480 AbstractCegarLoop]: Abstraction has 3131 states and 15575 transitions. [2021-03-11 14:27:45,933 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:27:45,933 INFO L276 IsEmpty]: Start isEmpty. Operand 3131 states and 15575 transitions. [2021-03-11 14:27:45,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:27:45,938 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:27:45,938 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:27:45,938 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable707 [2021-03-11 14:27:45,938 INFO L428 AbstractCegarLoop]: === Iteration 709 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:27:45,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:27:45,938 INFO L82 PathProgramCache]: Analyzing trace with hash 986987427, now seen corresponding path program 700 times [2021-03-11 14:27:45,938 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:27:45,939 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [696386154] [2021-03-11 14:27:45,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:27:45,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:27:45,950 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:27:45,952 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:27:45,953 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:27:45,954 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:27:45,972 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:27:45,973 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:27:46,003 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:27:46,005 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:27:46,047 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:27:46,049 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:27:46,108 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:27:46,109 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:27:46,179 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:27:46,180 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:27:46,265 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:27:46,267 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:27:46,428 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 29 [2021-03-11 14:27:46,431 INFO L142 QuantifierPusher]: treesize reduction 54, result has 55.4 percent of original size [2021-03-11 14:27:46,433 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-03-11 14:27:46,619 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 32 [2021-03-11 14:27:46,622 INFO L142 QuantifierPusher]: treesize reduction 72, result has 49.7 percent of original size [2021-03-11 14:27:46,624 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-03-11 14:27:46,756 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:27:46,758 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:27:46,872 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:27:46,872 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [696386154] [2021-03-11 14:27:46,873 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:27:46,873 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:27:46,873 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1015348035] [2021-03-11 14:27:46,873 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:27:46,873 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:27:46,873 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:27:46,873 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:27:46,873 INFO L87 Difference]: Start difference. First operand 3131 states and 15575 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:27:47,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:27:47,306 INFO L93 Difference]: Finished difference Result 6030 states and 26823 transitions. [2021-03-11 14:27:47,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:27:47,310 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:27:47,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:27:47,323 INFO L225 Difference]: With dead ends: 6030 [2021-03-11 14:27:47,323 INFO L226 Difference]: Without dead ends: 6001 [2021-03-11 14:27:47,323 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 990.8ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:27:47,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6001 states. [2021-03-11 14:27:47,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6001 to 3124. [2021-03-11 14:27:47,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3124 states, 3123 states have (on average 4.980787704130644) internal successors, (15555), 3123 states have internal predecessors, (15555), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:27:47,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3124 states to 3124 states and 15555 transitions. [2021-03-11 14:27:47,459 INFO L78 Accepts]: Start accepts. Automaton has 3124 states and 15555 transitions. Word has length 31 [2021-03-11 14:27:47,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:27:47,459 INFO L480 AbstractCegarLoop]: Abstraction has 3124 states and 15555 transitions. [2021-03-11 14:27:47,459 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:27:47,459 INFO L276 IsEmpty]: Start isEmpty. Operand 3124 states and 15555 transitions. [2021-03-11 14:27:47,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:27:47,463 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:27:47,463 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:27:47,464 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable708 [2021-03-11 14:27:47,464 INFO L428 AbstractCegarLoop]: === Iteration 710 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:27:47,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:27:47,464 INFO L82 PathProgramCache]: Analyzing trace with hash 1830133369, now seen corresponding path program 701 times [2021-03-11 14:27:47,464 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:27:47,464 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1273500556] [2021-03-11 14:27:47,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:27:47,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:27:47,476 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:27:47,477 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:27:47,479 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:27:47,480 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:27:47,498 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:27:47,500 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:27:47,531 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:27:47,532 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:27:47,575 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:27:47,576 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:27:47,633 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:27:47,634 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:27:47,705 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:27:47,707 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:27:47,792 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:27:47,793 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:27:47,955 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 29 [2021-03-11 14:27:47,958 INFO L142 QuantifierPusher]: treesize reduction 54, result has 55.4 percent of original size [2021-03-11 14:27:47,959 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-03-11 14:27:48,145 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 33 [2021-03-11 14:27:48,148 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:27:48,150 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:27:48,278 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:27:48,279 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:27:48,395 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:27:48,396 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1273500556] [2021-03-11 14:27:48,396 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:27:48,396 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:27:48,396 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1207877273] [2021-03-11 14:27:48,396 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:27:48,396 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:27:48,396 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:27:48,396 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:27:48,396 INFO L87 Difference]: Start difference. First operand 3124 states and 15555 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:27:48,853 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 38 [2021-03-11 14:27:48,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:27:48,897 INFO L93 Difference]: Finished difference Result 6028 states and 26820 transitions. [2021-03-11 14:27:48,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:27:48,901 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:27:48,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:27:48,915 INFO L225 Difference]: With dead ends: 6028 [2021-03-11 14:27:48,915 INFO L226 Difference]: Without dead ends: 6010 [2021-03-11 14:27:48,915 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 1071.3ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:27:48,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6010 states. [2021-03-11 14:27:49,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6010 to 3132. [2021-03-11 14:27:49,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3132 states, 3131 states have (on average 4.9728521239220695) internal successors, (15570), 3131 states have internal predecessors, (15570), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:27:49,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3132 states to 3132 states and 15570 transitions. [2021-03-11 14:27:49,050 INFO L78 Accepts]: Start accepts. Automaton has 3132 states and 15570 transitions. Word has length 31 [2021-03-11 14:27:49,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:27:49,050 INFO L480 AbstractCegarLoop]: Abstraction has 3132 states and 15570 transitions. [2021-03-11 14:27:49,050 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:27:49,050 INFO L276 IsEmpty]: Start isEmpty. Operand 3132 states and 15570 transitions. [2021-03-11 14:27:49,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:27:49,055 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:27:49,055 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:27:49,055 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable709 [2021-03-11 14:27:49,055 INFO L428 AbstractCegarLoop]: === Iteration 711 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:27:49,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:27:49,055 INFO L82 PathProgramCache]: Analyzing trace with hash 562676191, now seen corresponding path program 702 times [2021-03-11 14:27:49,055 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:27:49,055 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [101478017] [2021-03-11 14:27:49,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:27:49,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:27:49,067 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:27:49,069 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:27:49,070 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:27:49,071 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:27:49,090 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:27:49,091 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:27:49,121 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:27:49,122 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:27:49,166 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:27:49,168 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:27:49,224 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:27:49,226 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:27:49,294 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:27:49,296 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:27:49,378 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:27:49,380 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:27:49,540 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 29 [2021-03-11 14:27:49,543 INFO L142 QuantifierPusher]: treesize reduction 54, result has 55.4 percent of original size [2021-03-11 14:27:49,545 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-03-11 14:27:49,740 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 33 [2021-03-11 14:27:49,743 INFO L142 QuantifierPusher]: treesize reduction 72, result has 49.7 percent of original size [2021-03-11 14:27:49,745 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-03-11 14:27:49,878 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:27:49,880 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:27:49,997 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:27:49,998 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [101478017] [2021-03-11 14:27:49,998 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:27:49,998 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:27:49,998 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [712695816] [2021-03-11 14:27:49,998 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:27:49,998 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:27:49,998 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:27:49,998 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:27:49,998 INFO L87 Difference]: Start difference. First operand 3132 states and 15570 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:27:50,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:27:50,512 INFO L93 Difference]: Finished difference Result 6032 states and 26820 transitions. [2021-03-11 14:27:50,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:27:50,516 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:27:50,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:27:50,529 INFO L225 Difference]: With dead ends: 6032 [2021-03-11 14:27:50,529 INFO L226 Difference]: Without dead ends: 5995 [2021-03-11 14:27:50,530 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 997.1ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:27:50,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5995 states. [2021-03-11 14:27:50,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5995 to 3117. [2021-03-11 14:27:50,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3117 states, 3116 states have (on average 4.985558408215661) internal successors, (15535), 3116 states have internal predecessors, (15535), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:27:50,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3117 states to 3117 states and 15535 transitions. [2021-03-11 14:27:50,666 INFO L78 Accepts]: Start accepts. Automaton has 3117 states and 15535 transitions. Word has length 31 [2021-03-11 14:27:50,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:27:50,666 INFO L480 AbstractCegarLoop]: Abstraction has 3117 states and 15535 transitions. [2021-03-11 14:27:50,666 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:27:50,666 INFO L276 IsEmpty]: Start isEmpty. Operand 3117 states and 15535 transitions. [2021-03-11 14:27:50,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:27:50,671 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:27:50,671 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:27:50,671 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable710 [2021-03-11 14:27:50,671 INFO L428 AbstractCegarLoop]: === Iteration 712 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:27:50,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:27:50,671 INFO L82 PathProgramCache]: Analyzing trace with hash 1454026049, now seen corresponding path program 703 times [2021-03-11 14:27:50,671 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:27:50,671 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [296774586] [2021-03-11 14:27:50,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:27:50,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:27:50,683 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:27:50,684 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:27:50,686 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:27:50,687 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:27:50,705 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:27:50,706 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:27:50,736 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:27:50,738 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:27:50,781 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:27:50,782 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:27:50,840 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:27:50,841 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:27:50,911 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:27:50,912 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:27:50,997 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:27:50,998 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:27:51,099 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:27:51,100 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:27:51,214 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:27:51,215 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:27:51,346 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:27:51,348 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:27:51,464 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:27:51,464 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [296774586] [2021-03-11 14:27:51,464 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:27:51,464 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:27:51,464 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [488464083] [2021-03-11 14:27:51,464 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:27:51,464 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:27:51,464 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:27:51,465 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:27:51,465 INFO L87 Difference]: Start difference. First operand 3117 states and 15535 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:27:51,937 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 38 [2021-03-11 14:27:51,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:27:51,979 INFO L93 Difference]: Finished difference Result 6014 states and 26798 transitions. [2021-03-11 14:27:51,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:27:51,983 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:27:51,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:27:51,996 INFO L225 Difference]: With dead ends: 6014 [2021-03-11 14:27:51,996 INFO L226 Difference]: Without dead ends: 5997 [2021-03-11 14:27:51,996 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 933.5ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:27:52,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5997 states. [2021-03-11 14:27:52,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5997 to 3129. [2021-03-11 14:27:52,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3129 states, 3128 states have (on average 4.97730179028133) internal successors, (15569), 3128 states have internal predecessors, (15569), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:27:52,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3129 states to 3129 states and 15569 transitions. [2021-03-11 14:27:52,132 INFO L78 Accepts]: Start accepts. Automaton has 3129 states and 15569 transitions. Word has length 31 [2021-03-11 14:27:52,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:27:52,132 INFO L480 AbstractCegarLoop]: Abstraction has 3129 states and 15569 transitions. [2021-03-11 14:27:52,132 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:27:52,132 INFO L276 IsEmpty]: Start isEmpty. Operand 3129 states and 15569 transitions. [2021-03-11 14:27:52,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:27:52,137 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:27:52,137 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:27:52,137 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable711 [2021-03-11 14:27:52,137 INFO L428 AbstractCegarLoop]: === Iteration 713 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:27:52,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:27:52,137 INFO L82 PathProgramCache]: Analyzing trace with hash 609054597, now seen corresponding path program 704 times [2021-03-11 14:27:52,137 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:27:52,137 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1274519776] [2021-03-11 14:27:52,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:27:52,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:27:52,149 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:27:52,150 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:27:52,152 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:27:52,153 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:27:52,172 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:27:52,173 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:27:52,203 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:27:52,204 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:27:52,247 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:27:52,249 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:27:52,306 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:27:52,307 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:27:52,377 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:27:52,378 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:27:52,462 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:27:52,464 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:27:52,564 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:27:52,566 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:27:52,690 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:27:52,692 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:27:52,835 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:27:52,837 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:27:52,969 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:27:52,969 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1274519776] [2021-03-11 14:27:52,969 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:27:52,969 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:27:52,969 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [270374502] [2021-03-11 14:27:52,970 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:27:52,970 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:27:52,970 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:27:52,970 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:27:52,970 INFO L87 Difference]: Start difference. First operand 3129 states and 15569 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:27:53,511 WARN L205 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 38 [2021-03-11 14:27:53,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:27:53,565 INFO L93 Difference]: Finished difference Result 6015 states and 26794 transitions. [2021-03-11 14:27:53,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:27:53,570 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:27:53,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:27:53,583 INFO L225 Difference]: With dead ends: 6015 [2021-03-11 14:27:53,584 INFO L226 Difference]: Without dead ends: 5991 [2021-03-11 14:27:53,584 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 989.3ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:27:53,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5991 states. [2021-03-11 14:27:53,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5991 to 3123. [2021-03-11 14:27:53,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3123 states, 3122 states have (on average 4.981422165278667) internal successors, (15552), 3122 states have internal predecessors, (15552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:27:53,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3123 states to 3123 states and 15552 transitions. [2021-03-11 14:27:53,730 INFO L78 Accepts]: Start accepts. Automaton has 3123 states and 15552 transitions. Word has length 31 [2021-03-11 14:27:53,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:27:53,730 INFO L480 AbstractCegarLoop]: Abstraction has 3123 states and 15552 transitions. [2021-03-11 14:27:53,730 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:27:53,730 INFO L276 IsEmpty]: Start isEmpty. Operand 3123 states and 15552 transitions. [2021-03-11 14:27:53,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:27:53,735 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:27:53,735 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:27:53,735 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable712 [2021-03-11 14:27:53,735 INFO L428 AbstractCegarLoop]: === Iteration 714 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:27:53,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:27:53,735 INFO L82 PathProgramCache]: Analyzing trace with hash 605403577, now seen corresponding path program 705 times [2021-03-11 14:27:53,735 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:27:53,735 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1795400501] [2021-03-11 14:27:53,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:27:53,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:27:53,747 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:27:53,749 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:27:53,750 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:27:53,752 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:27:53,771 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:27:53,773 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:27:53,805 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:27:53,806 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:27:53,853 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:27:53,854 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:27:53,916 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:27:53,918 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:27:53,994 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:27:53,995 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:27:54,087 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:27:54,089 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:27:54,195 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:27:54,196 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:27:54,318 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:27:54,319 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:27:54,463 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:27:54,464 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:27:54,591 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:27:54,592 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1795400501] [2021-03-11 14:27:54,592 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:27:54,592 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:27:54,592 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [448296847] [2021-03-11 14:27:54,592 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:27:54,592 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:27:54,592 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:27:54,592 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:27:54,592 INFO L87 Difference]: Start difference. First operand 3123 states and 15552 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:27:55,088 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 38 [2021-03-11 14:27:55,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:27:55,131 INFO L93 Difference]: Finished difference Result 6015 states and 26794 transitions. [2021-03-11 14:27:55,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:27:55,136 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:27:55,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:27:55,149 INFO L225 Difference]: With dead ends: 6015 [2021-03-11 14:27:55,149 INFO L226 Difference]: Without dead ends: 5998 [2021-03-11 14:27:55,149 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 992.7ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:27:55,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5998 states. [2021-03-11 14:27:55,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5998 to 3129. [2021-03-11 14:27:55,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3129 states, 3128 states have (on average 4.975383631713555) internal successors, (15563), 3128 states have internal predecessors, (15563), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:27:55,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3129 states to 3129 states and 15563 transitions. [2021-03-11 14:27:55,282 INFO L78 Accepts]: Start accepts. Automaton has 3129 states and 15563 transitions. Word has length 31 [2021-03-11 14:27:55,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:27:55,282 INFO L480 AbstractCegarLoop]: Abstraction has 3129 states and 15563 transitions. [2021-03-11 14:27:55,282 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:27:55,282 INFO L276 IsEmpty]: Start isEmpty. Operand 3129 states and 15563 transitions. [2021-03-11 14:27:55,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:27:55,287 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:27:55,287 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:27:55,287 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable713 [2021-03-11 14:27:55,287 INFO L428 AbstractCegarLoop]: === Iteration 715 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:27:55,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:27:55,287 INFO L82 PathProgramCache]: Analyzing trace with hash -1929510779, now seen corresponding path program 706 times [2021-03-11 14:27:55,287 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:27:55,287 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [15610709] [2021-03-11 14:27:55,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:27:55,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:27:55,299 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:27:55,301 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:27:55,302 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:27:55,303 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:27:55,321 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:27:55,322 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:27:55,353 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:27:55,354 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:27:55,398 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:27:55,399 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:27:55,456 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:27:55,457 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:27:55,526 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:27:55,527 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:27:55,611 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:27:55,612 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:27:55,709 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:27:55,710 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:27:55,822 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:27:55,824 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:27:55,956 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:27:55,957 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:27:56,074 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:27:56,074 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [15610709] [2021-03-11 14:27:56,074 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:27:56,075 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:27:56,075 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [959134105] [2021-03-11 14:27:56,075 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:27:56,075 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:27:56,075 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:27:56,075 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:27:56,075 INFO L87 Difference]: Start difference. First operand 3129 states and 15563 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:27:56,571 WARN L205 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 40 [2021-03-11 14:27:56,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:27:56,624 INFO L93 Difference]: Finished difference Result 6017 states and 26792 transitions. [2021-03-11 14:27:56,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:27:56,628 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:27:56,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:27:56,641 INFO L225 Difference]: With dead ends: 6017 [2021-03-11 14:27:56,641 INFO L226 Difference]: Without dead ends: 5992 [2021-03-11 14:27:56,641 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 938.0ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:27:56,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5992 states. [2021-03-11 14:27:56,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5992 to 3123. [2021-03-11 14:27:56,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3123 states, 3122 states have (on average 4.979500320307495) internal successors, (15546), 3122 states have internal predecessors, (15546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:27:56,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3123 states to 3123 states and 15546 transitions. [2021-03-11 14:27:56,776 INFO L78 Accepts]: Start accepts. Automaton has 3123 states and 15546 transitions. Word has length 31 [2021-03-11 14:27:56,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:27:56,776 INFO L480 AbstractCegarLoop]: Abstraction has 3123 states and 15546 transitions. [2021-03-11 14:27:56,776 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:27:56,776 INFO L276 IsEmpty]: Start isEmpty. Operand 3123 states and 15546 transitions. [2021-03-11 14:27:56,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:27:56,781 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:27:56,781 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:27:56,781 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable714 [2021-03-11 14:27:56,781 INFO L428 AbstractCegarLoop]: === Iteration 716 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:27:56,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:27:56,781 INFO L82 PathProgramCache]: Analyzing trace with hash -663879111, now seen corresponding path program 707 times [2021-03-11 14:27:56,781 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:27:56,782 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1696308648] [2021-03-11 14:27:56,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:27:56,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:27:56,793 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:27:56,795 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:27:56,796 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:27:56,797 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:27:56,815 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:27:56,816 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:27:56,846 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:27:56,848 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:27:56,890 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:27:56,892 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:27:56,949 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:27:56,950 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:27:57,019 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:27:57,021 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:27:57,104 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:27:57,106 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:27:57,204 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:27:57,205 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:27:57,319 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:27:57,321 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:27:57,450 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:27:57,452 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:27:57,570 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:27:57,570 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1696308648] [2021-03-11 14:27:57,570 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:27:57,570 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:27:57,570 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [465418516] [2021-03-11 14:27:57,570 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:27:57,570 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:27:57,570 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:27:57,570 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:27:57,570 INFO L87 Difference]: Start difference. First operand 3123 states and 15546 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:27:58,056 WARN L205 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 38 [2021-03-11 14:27:58,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:27:58,099 INFO L93 Difference]: Finished difference Result 6018 states and 26795 transitions. [2021-03-11 14:27:58,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:27:58,104 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:27:58,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:27:58,117 INFO L225 Difference]: With dead ends: 6018 [2021-03-11 14:27:58,117 INFO L226 Difference]: Without dead ends: 6000 [2021-03-11 14:27:58,117 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 934.7ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:27:58,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6000 states. [2021-03-11 14:27:58,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6000 to 3130. [2021-03-11 14:27:58,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3130 states, 3129 states have (on average 4.972515180568871) internal successors, (15559), 3129 states have internal predecessors, (15559), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:27:58,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3130 states to 3130 states and 15559 transitions. [2021-03-11 14:27:58,253 INFO L78 Accepts]: Start accepts. Automaton has 3130 states and 15559 transitions. Word has length 31 [2021-03-11 14:27:58,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:27:58,253 INFO L480 AbstractCegarLoop]: Abstraction has 3130 states and 15559 transitions. [2021-03-11 14:27:58,253 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:27:58,253 INFO L276 IsEmpty]: Start isEmpty. Operand 3130 states and 15559 transitions. [2021-03-11 14:27:58,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:27:58,258 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:27:58,258 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:27:58,258 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable715 [2021-03-11 14:27:58,258 INFO L428 AbstractCegarLoop]: === Iteration 717 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:27:58,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:27:58,258 INFO L82 PathProgramCache]: Analyzing trace with hash 1941145281, now seen corresponding path program 708 times [2021-03-11 14:27:58,258 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:27:58,258 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [176073972] [2021-03-11 14:27:58,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:27:58,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:27:58,270 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:27:58,271 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:27:58,273 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:27:58,274 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:27:58,292 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:27:58,293 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:27:58,323 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:27:58,324 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:27:58,367 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:27:58,368 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:27:58,426 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:27:58,427 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:27:58,497 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:27:58,499 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:27:58,583 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:27:58,585 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:27:58,682 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:27:58,684 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:27:58,798 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:27:58,799 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:27:58,933 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:27:58,935 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:27:59,051 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:27:59,051 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [176073972] [2021-03-11 14:27:59,051 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:27:59,051 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:27:59,051 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2073592411] [2021-03-11 14:27:59,052 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:27:59,052 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:27:59,052 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:27:59,052 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:27:59,052 INFO L87 Difference]: Start difference. First operand 3130 states and 15559 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:27:59,685 WARN L205 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 40 [2021-03-11 14:27:59,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:27:59,740 INFO L93 Difference]: Finished difference Result 6019 states and 26790 transitions. [2021-03-11 14:27:59,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:27:59,744 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:27:59,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:27:59,757 INFO L225 Difference]: With dead ends: 6019 [2021-03-11 14:27:59,757 INFO L226 Difference]: Without dead ends: 5987 [2021-03-11 14:27:59,757 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 946.3ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:27:59,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5987 states. [2021-03-11 14:27:59,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5987 to 3117. [2021-03-11 14:27:59,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3117 states, 3116 states have (on average 4.9836328626444155) internal successors, (15529), 3116 states have internal predecessors, (15529), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:27:59,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3117 states to 3117 states and 15529 transitions. [2021-03-11 14:27:59,892 INFO L78 Accepts]: Start accepts. Automaton has 3117 states and 15529 transitions. Word has length 31 [2021-03-11 14:27:59,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:27:59,892 INFO L480 AbstractCegarLoop]: Abstraction has 3117 states and 15529 transitions. [2021-03-11 14:27:59,892 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:27:59,892 INFO L276 IsEmpty]: Start isEmpty. Operand 3117 states and 15529 transitions. [2021-03-11 14:27:59,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:27:59,897 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:27:59,897 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:27:59,897 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable716 [2021-03-11 14:27:59,897 INFO L428 AbstractCegarLoop]: === Iteration 718 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:27:59,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:27:59,897 INFO L82 PathProgramCache]: Analyzing trace with hash -1733044095, now seen corresponding path program 709 times [2021-03-11 14:27:59,897 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:27:59,897 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1258201901] [2021-03-11 14:27:59,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:27:59,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:27:59,909 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:27:59,911 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:27:59,912 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:27:59,913 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:27:59,931 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:27:59,933 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:27:59,964 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:27:59,965 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:28:00,009 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:28:00,011 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:28:00,069 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:28:00,070 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:28:00,142 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:28:00,144 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:28:00,232 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:28:00,233 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:28:00,333 INFO L142 QuantifierPusher]: treesize reduction 54, result has 55.4 percent of original size [2021-03-11 14:28:00,334 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-03-11 14:28:00,524 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 32 [2021-03-11 14:28:00,527 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:28:00,529 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:28:00,662 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:28:00,664 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:28:00,782 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:28:00,782 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1258201901] [2021-03-11 14:28:00,782 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:28:00,782 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:28:00,782 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1400661206] [2021-03-11 14:28:00,782 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:28:00,782 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:28:00,782 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:28:00,782 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:28:00,782 INFO L87 Difference]: Start difference. First operand 3117 states and 15529 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:28:01,276 WARN L205 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 38 [2021-03-11 14:28:01,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:28:01,330 INFO L93 Difference]: Finished difference Result 6027 states and 26818 transitions. [2021-03-11 14:28:01,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:28:01,334 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:28:01,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:28:01,347 INFO L225 Difference]: With dead ends: 6027 [2021-03-11 14:28:01,348 INFO L226 Difference]: Without dead ends: 6010 [2021-03-11 14:28:01,348 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 1031.7ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:28:01,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6010 states. [2021-03-11 14:28:01,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6010 to 3131. [2021-03-11 14:28:01,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3131 states, 3130 states have (on average 4.973801916932907) internal successors, (15568), 3130 states have internal predecessors, (15568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:28:01,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3131 states to 3131 states and 15568 transitions. [2021-03-11 14:28:01,483 INFO L78 Accepts]: Start accepts. Automaton has 3131 states and 15568 transitions. Word has length 31 [2021-03-11 14:28:01,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:28:01,484 INFO L480 AbstractCegarLoop]: Abstraction has 3131 states and 15568 transitions. [2021-03-11 14:28:01,484 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:28:01,484 INFO L276 IsEmpty]: Start isEmpty. Operand 3131 states and 15568 transitions. [2021-03-11 14:28:01,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:28:01,488 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:28:01,488 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:28:01,488 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable717 [2021-03-11 14:28:01,488 INFO L428 AbstractCegarLoop]: === Iteration 719 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:28:01,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:28:01,489 INFO L82 PathProgramCache]: Analyzing trace with hash 449494571, now seen corresponding path program 710 times [2021-03-11 14:28:01,489 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:28:01,489 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [164833411] [2021-03-11 14:28:01,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:28:01,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:28:01,501 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:28:01,502 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:28:01,503 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:28:01,505 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:28:01,523 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:28:01,524 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:28:01,554 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:28:01,555 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:28:01,599 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:28:01,600 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:28:01,658 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:28:01,659 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:28:01,730 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:28:01,731 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:28:01,817 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:28:01,819 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:28:01,920 INFO L142 QuantifierPusher]: treesize reduction 54, result has 55.4 percent of original size [2021-03-11 14:28:01,922 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-03-11 14:28:02,119 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 32 [2021-03-11 14:28:02,123 INFO L142 QuantifierPusher]: treesize reduction 72, result has 49.7 percent of original size [2021-03-11 14:28:02,124 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-03-11 14:28:02,264 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:28:02,266 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:28:02,387 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:28:02,387 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [164833411] [2021-03-11 14:28:02,387 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:28:02,387 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:28:02,387 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2054505655] [2021-03-11 14:28:02,387 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:28:02,387 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:28:02,387 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:28:02,387 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:28:02,387 INFO L87 Difference]: Start difference. First operand 3131 states and 15568 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:28:02,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:28:02,846 INFO L93 Difference]: Finished difference Result 6032 states and 26821 transitions. [2021-03-11 14:28:02,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:28:02,850 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:28:02,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:28:02,863 INFO L225 Difference]: With dead ends: 6032 [2021-03-11 14:28:02,863 INFO L226 Difference]: Without dead ends: 6003 [2021-03-11 14:28:02,864 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 954.7ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:28:02,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6003 states. [2021-03-11 14:28:02,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6003 to 3124. [2021-03-11 14:28:02,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3124 states, 3123 states have (on average 4.978546269612552) internal successors, (15548), 3123 states have internal predecessors, (15548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:28:02,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3124 states to 3124 states and 15548 transitions. [2021-03-11 14:28:02,998 INFO L78 Accepts]: Start accepts. Automaton has 3124 states and 15548 transitions. Word has length 31 [2021-03-11 14:28:02,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:28:02,999 INFO L480 AbstractCegarLoop]: Abstraction has 3124 states and 15548 transitions. [2021-03-11 14:28:02,999 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:28:02,999 INFO L276 IsEmpty]: Start isEmpty. Operand 3124 states and 15548 transitions. [2021-03-11 14:28:03,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:28:03,003 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:28:03,003 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:28:03,004 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable718 [2021-03-11 14:28:03,004 INFO L428 AbstractCegarLoop]: === Iteration 720 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:28:03,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:28:03,004 INFO L82 PathProgramCache]: Analyzing trace with hash -1945199713, now seen corresponding path program 711 times [2021-03-11 14:28:03,004 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:28:03,004 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [450531738] [2021-03-11 14:28:03,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:28:03,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:28:03,016 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:28:03,017 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:28:03,018 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:28:03,020 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:28:03,038 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:28:03,039 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:28:03,069 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:28:03,070 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:28:03,113 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:28:03,115 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:28:03,171 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:28:03,173 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:28:03,242 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:28:03,243 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:28:03,328 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:28:03,329 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:28:03,427 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:28:03,428 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:28:03,541 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:28:03,543 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:28:03,674 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:28:03,676 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:28:03,796 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:28:03,796 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [450531738] [2021-03-11 14:28:03,796 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:28:03,796 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:28:03,796 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1118390764] [2021-03-11 14:28:03,796 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:28:03,796 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:28:03,797 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:28:03,797 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:28:03,797 INFO L87 Difference]: Start difference. First operand 3124 states and 15548 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:28:04,455 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 38 [2021-03-11 14:28:04,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:28:04,505 INFO L93 Difference]: Finished difference Result 6023 states and 26804 transitions. [2021-03-11 14:28:04,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:28:04,510 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:28:04,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:28:04,523 INFO L225 Difference]: With dead ends: 6023 [2021-03-11 14:28:04,523 INFO L226 Difference]: Without dead ends: 6006 [2021-03-11 14:28:04,523 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 932.7ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:28:04,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6006 states. [2021-03-11 14:28:04,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6006 to 3130. [2021-03-11 14:28:04,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3130 states, 3129 states have (on average 4.972515180568871) internal successors, (15559), 3129 states have internal predecessors, (15559), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:28:04,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3130 states to 3130 states and 15559 transitions. [2021-03-11 14:28:04,659 INFO L78 Accepts]: Start accepts. Automaton has 3130 states and 15559 transitions. Word has length 31 [2021-03-11 14:28:04,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:28:04,660 INFO L480 AbstractCegarLoop]: Abstraction has 3130 states and 15559 transitions. [2021-03-11 14:28:04,660 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:28:04,660 INFO L276 IsEmpty]: Start isEmpty. Operand 3130 states and 15559 transitions. [2021-03-11 14:28:04,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:28:04,664 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:28:04,664 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:28:04,664 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable719 [2021-03-11 14:28:04,664 INFO L428 AbstractCegarLoop]: === Iteration 721 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:28:04,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:28:04,665 INFO L82 PathProgramCache]: Analyzing trace with hash -185146773, now seen corresponding path program 712 times [2021-03-11 14:28:04,665 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:28:04,665 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1458518849] [2021-03-11 14:28:04,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:28:04,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:28:04,677 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:28:04,678 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:28:04,679 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:28:04,681 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:28:04,699 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:28:04,700 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:28:04,730 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:28:04,731 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:28:04,775 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:28:04,776 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:28:04,833 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:28:04,835 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:28:04,904 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:28:04,905 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:28:04,991 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:28:04,993 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:28:05,094 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:28:05,095 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:28:05,210 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:28:05,211 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:28:05,344 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:28:05,345 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:28:05,463 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:28:05,464 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1458518849] [2021-03-11 14:28:05,464 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:28:05,464 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:28:05,464 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1643762415] [2021-03-11 14:28:05,464 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:28:05,464 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:28:05,464 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:28:05,464 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:28:05,464 INFO L87 Difference]: Start difference. First operand 3130 states and 15559 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:28:05,964 WARN L205 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 40 [2021-03-11 14:28:06,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:28:06,017 INFO L93 Difference]: Finished difference Result 6025 states and 26802 transitions. [2021-03-11 14:28:06,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:28:06,021 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:28:06,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:28:06,034 INFO L225 Difference]: With dead ends: 6025 [2021-03-11 14:28:06,034 INFO L226 Difference]: Without dead ends: 6000 [2021-03-11 14:28:06,035 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 950.8ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:28:06,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6000 states. [2021-03-11 14:28:06,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6000 to 3124. [2021-03-11 14:28:06,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3124 states, 3123 states have (on average 4.976625040025616) internal successors, (15542), 3123 states have internal predecessors, (15542), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:28:06,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3124 states to 3124 states and 15542 transitions. [2021-03-11 14:28:06,169 INFO L78 Accepts]: Start accepts. Automaton has 3124 states and 15542 transitions. Word has length 31 [2021-03-11 14:28:06,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:28:06,169 INFO L480 AbstractCegarLoop]: Abstraction has 3124 states and 15542 transitions. [2021-03-11 14:28:06,169 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:28:06,169 INFO L276 IsEmpty]: Start isEmpty. Operand 3124 states and 15542 transitions. [2021-03-11 14:28:06,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:28:06,174 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:28:06,174 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:28:06,174 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable720 [2021-03-11 14:28:06,174 INFO L428 AbstractCegarLoop]: === Iteration 722 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:28:06,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:28:06,174 INFO L82 PathProgramCache]: Analyzing trace with hash -823439137, now seen corresponding path program 713 times [2021-03-11 14:28:06,174 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:28:06,174 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1452028747] [2021-03-11 14:28:06,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:28:06,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:28:06,186 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:28:06,187 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:28:06,189 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:28:06,190 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:28:06,208 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:28:06,209 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:28:06,239 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:28:06,240 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:28:06,285 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:28:06,286 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:28:06,343 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:28:06,345 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:28:06,414 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:28:06,416 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:28:06,501 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:28:06,502 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:28:06,603 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:28:06,605 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:28:06,721 INFO L142 QuantifierPusher]: treesize reduction 72, result has 49.7 percent of original size [2021-03-11 14:28:06,723 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-03-11 14:28:06,856 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:28:06,858 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:28:06,975 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:28:06,975 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1452028747] [2021-03-11 14:28:06,975 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:28:06,975 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:28:06,975 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1432963005] [2021-03-11 14:28:06,975 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:28:06,975 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:28:06,975 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:28:06,975 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:28:06,975 INFO L87 Difference]: Start difference. First operand 3124 states and 15542 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:28:07,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:28:07,433 INFO L93 Difference]: Finished difference Result 6036 states and 26824 transitions. [2021-03-11 14:28:07,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:28:07,437 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:28:07,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:28:07,450 INFO L225 Difference]: With dead ends: 6036 [2021-03-11 14:28:07,450 INFO L226 Difference]: Without dead ends: 6014 [2021-03-11 14:28:07,450 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 857.3ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:28:07,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6014 states. [2021-03-11 14:28:07,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6014 to 3133. [2021-03-11 14:28:07,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3133 states, 3132 states have (on average 4.967432950191571) internal successors, (15558), 3132 states have internal predecessors, (15558), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:28:07,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3133 states to 3133 states and 15558 transitions. [2021-03-11 14:28:07,585 INFO L78 Accepts]: Start accepts. Automaton has 3133 states and 15558 transitions. Word has length 31 [2021-03-11 14:28:07,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:28:07,586 INFO L480 AbstractCegarLoop]: Abstraction has 3133 states and 15558 transitions. [2021-03-11 14:28:07,586 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:28:07,586 INFO L276 IsEmpty]: Start isEmpty. Operand 3133 states and 15558 transitions. [2021-03-11 14:28:07,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:28:07,590 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:28:07,590 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:28:07,590 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable721 [2021-03-11 14:28:07,590 INFO L428 AbstractCegarLoop]: === Iteration 723 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:28:07,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:28:07,591 INFO L82 PathProgramCache]: Analyzing trace with hash -1245924863, now seen corresponding path program 714 times [2021-03-11 14:28:07,591 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:28:07,591 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [960332558] [2021-03-11 14:28:07,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:28:07,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:28:07,602 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:28:07,604 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:28:07,605 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:28:07,606 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:28:07,624 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:28:07,626 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:28:07,656 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:28:07,657 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:28:07,701 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:28:07,702 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:28:07,759 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:28:07,761 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:28:07,831 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:28:07,832 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:28:07,918 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:28:07,920 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:28:08,018 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:28:08,019 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:28:08,139 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:28:08,141 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:28:08,274 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:28:08,275 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:28:08,393 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:28:08,393 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [960332558] [2021-03-11 14:28:08,393 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:28:08,394 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:28:08,394 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [246499350] [2021-03-11 14:28:08,394 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:28:08,394 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:28:08,394 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:28:08,394 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:28:08,394 INFO L87 Difference]: Start difference. First operand 3133 states and 15558 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:28:08,947 WARN L205 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 40 [2021-03-11 14:28:09,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:28:09,007 INFO L93 Difference]: Finished difference Result 6033 states and 26810 transitions. [2021-03-11 14:28:09,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:28:09,012 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:28:09,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:28:09,024 INFO L225 Difference]: With dead ends: 6033 [2021-03-11 14:28:09,025 INFO L226 Difference]: Without dead ends: 5998 [2021-03-11 14:28:09,025 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 959.2ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:28:09,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5998 states. [2021-03-11 14:28:09,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5998 to 3117. [2021-03-11 14:28:09,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3117 states, 3116 states have (on average 4.981386392811297) internal successors, (15522), 3116 states have internal predecessors, (15522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:28:09,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3117 states to 3117 states and 15522 transitions. [2021-03-11 14:28:09,160 INFO L78 Accepts]: Start accepts. Automaton has 3117 states and 15522 transitions. Word has length 31 [2021-03-11 14:28:09,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:28:09,160 INFO L480 AbstractCegarLoop]: Abstraction has 3117 states and 15522 transitions. [2021-03-11 14:28:09,160 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:28:09,160 INFO L276 IsEmpty]: Start isEmpty. Operand 3117 states and 15522 transitions. [2021-03-11 14:28:09,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:28:09,165 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:28:09,165 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:28:09,165 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable722 [2021-03-11 14:28:09,165 INFO L428 AbstractCegarLoop]: === Iteration 724 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:28:09,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:28:09,165 INFO L82 PathProgramCache]: Analyzing trace with hash 1023894085, now seen corresponding path program 715 times [2021-03-11 14:28:09,165 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:28:09,165 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [173389479] [2021-03-11 14:28:09,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:28:09,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:28:09,177 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:28:09,179 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:28:09,180 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:28:09,181 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:28:09,200 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:28:09,201 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:28:09,231 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:28:09,233 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:28:09,277 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:28:09,278 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:28:09,336 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:28:09,338 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:28:09,410 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:28:09,411 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:28:09,499 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:28:09,501 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:28:09,605 INFO L142 QuantifierPusher]: treesize reduction 54, result has 55.4 percent of original size [2021-03-11 14:28:09,607 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-03-11 14:28:09,799 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 33 [2021-03-11 14:28:09,803 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:28:09,804 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:28:09,937 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:28:09,939 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:28:10,059 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:28:10,059 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [173389479] [2021-03-11 14:28:10,059 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:28:10,059 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:28:10,059 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [495697587] [2021-03-11 14:28:10,059 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:28:10,059 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:28:10,059 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:28:10,059 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:28:10,059 INFO L87 Difference]: Start difference. First operand 3117 states and 15522 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:28:10,614 WARN L205 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 38 [2021-03-11 14:28:10,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:28:10,666 INFO L93 Difference]: Finished difference Result 6034 states and 26830 transitions. [2021-03-11 14:28:10,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:28:10,670 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:28:10,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:28:10,683 INFO L225 Difference]: With dead ends: 6034 [2021-03-11 14:28:10,683 INFO L226 Difference]: Without dead ends: 6016 [2021-03-11 14:28:10,683 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 1036.6ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:28:10,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6016 states. [2021-03-11 14:28:10,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6016 to 3133. [2021-03-11 14:28:10,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3133 states, 3132 states have (on average 4.9703065134099615) internal successors, (15567), 3132 states have internal predecessors, (15567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:28:10,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3133 states to 3133 states and 15567 transitions. [2021-03-11 14:28:10,819 INFO L78 Accepts]: Start accepts. Automaton has 3133 states and 15567 transitions. Word has length 31 [2021-03-11 14:28:10,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:28:10,819 INFO L480 AbstractCegarLoop]: Abstraction has 3133 states and 15567 transitions. [2021-03-11 14:28:10,819 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:28:10,819 INFO L276 IsEmpty]: Start isEmpty. Operand 3133 states and 15567 transitions. [2021-03-11 14:28:10,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:28:10,824 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:28:10,824 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:28:10,824 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable723 [2021-03-11 14:28:10,824 INFO L428 AbstractCegarLoop]: === Iteration 725 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:28:10,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:28:10,824 INFO L82 PathProgramCache]: Analyzing trace with hash -243563093, now seen corresponding path program 716 times [2021-03-11 14:28:10,824 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:28:10,824 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [892130211] [2021-03-11 14:28:10,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:28:10,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:28:10,836 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:28:10,837 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:28:10,839 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:28:10,840 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:28:10,858 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:28:10,860 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:28:10,890 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:28:10,892 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:28:10,936 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:28:10,937 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:28:10,997 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:28:10,999 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:28:11,075 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:28:11,077 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:28:11,171 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:28:11,172 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:28:11,284 INFO L142 QuantifierPusher]: treesize reduction 54, result has 55.4 percent of original size [2021-03-11 14:28:11,285 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-03-11 14:28:11,495 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 33 [2021-03-11 14:28:11,499 INFO L142 QuantifierPusher]: treesize reduction 72, result has 49.7 percent of original size [2021-03-11 14:28:11,500 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-03-11 14:28:11,648 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:28:11,650 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:28:11,781 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:28:11,781 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [892130211] [2021-03-11 14:28:11,781 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:28:11,781 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:28:11,781 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1620515676] [2021-03-11 14:28:11,781 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:28:11,781 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:28:11,782 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:28:11,782 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:28:11,782 INFO L87 Difference]: Start difference. First operand 3133 states and 15567 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:28:12,266 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 41 [2021-03-11 14:28:12,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:28:12,318 INFO L93 Difference]: Finished difference Result 6038 states and 26830 transitions. [2021-03-11 14:28:12,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:28:12,323 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:28:12,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:28:12,336 INFO L225 Difference]: With dead ends: 6038 [2021-03-11 14:28:12,337 INFO L226 Difference]: Without dead ends: 6008 [2021-03-11 14:28:12,337 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 1023.7ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:28:12,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6008 states. [2021-03-11 14:28:12,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6008 to 3125. [2021-03-11 14:28:12,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3125 states, 3124 states have (on average 4.975672215108835) internal successors, (15544), 3124 states have internal predecessors, (15544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:28:12,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3125 states to 3125 states and 15544 transitions. [2021-03-11 14:28:12,480 INFO L78 Accepts]: Start accepts. Automaton has 3125 states and 15544 transitions. Word has length 31 [2021-03-11 14:28:12,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:28:12,480 INFO L480 AbstractCegarLoop]: Abstraction has 3125 states and 15544 transitions. [2021-03-11 14:28:12,481 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:28:12,481 INFO L276 IsEmpty]: Start isEmpty. Operand 3125 states and 15544 transitions. [2021-03-11 14:28:12,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:28:12,486 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:28:12,486 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:28:12,486 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable724 [2021-03-11 14:28:12,486 INFO L428 AbstractCegarLoop]: === Iteration 726 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:28:12,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:28:12,486 INFO L82 PathProgramCache]: Analyzing trace with hash 811738467, now seen corresponding path program 717 times [2021-03-11 14:28:12,486 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:28:12,486 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2055246673] [2021-03-11 14:28:12,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:28:12,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:28:12,498 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:28:12,500 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:28:12,501 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:28:12,503 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:28:12,523 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:28:12,524 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:28:12,558 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:28:12,559 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:28:12,609 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:28:12,611 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:28:12,674 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:28:12,676 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:28:12,758 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:28:12,760 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:28:12,859 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:28:12,861 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:28:12,974 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:28:12,976 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:28:13,104 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:28:13,106 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:28:13,259 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:28:13,260 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:28:13,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:28:13,380 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2055246673] [2021-03-11 14:28:13,380 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:28:13,380 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:28:13,380 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1018178441] [2021-03-11 14:28:13,380 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:28:13,380 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:28:13,380 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:28:13,380 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:28:13,380 INFO L87 Difference]: Start difference. First operand 3125 states and 15544 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:28:13,959 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 38 [2021-03-11 14:28:14,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:28:14,010 INFO L93 Difference]: Finished difference Result 6030 states and 26815 transitions. [2021-03-11 14:28:14,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:28:14,014 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:28:14,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:28:14,027 INFO L225 Difference]: With dead ends: 6030 [2021-03-11 14:28:14,027 INFO L226 Difference]: Without dead ends: 6012 [2021-03-11 14:28:14,027 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 1033.1ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:28:14,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6012 states. [2021-03-11 14:28:14,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6012 to 3132. [2021-03-11 14:28:14,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3132 states, 3131 states have (on average 4.9687000958160334) internal successors, (15557), 3131 states have internal predecessors, (15557), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:28:14,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3132 states to 3132 states and 15557 transitions. [2021-03-11 14:28:14,162 INFO L78 Accepts]: Start accepts. Automaton has 3132 states and 15557 transitions. Word has length 31 [2021-03-11 14:28:14,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:28:14,162 INFO L480 AbstractCegarLoop]: Abstraction has 3132 states and 15557 transitions. [2021-03-11 14:28:14,162 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:28:14,162 INFO L276 IsEmpty]: Start isEmpty. Operand 3132 states and 15557 transitions. [2021-03-11 14:28:14,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:28:14,167 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:28:14,167 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:28:14,167 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable725 [2021-03-11 14:28:14,167 INFO L428 AbstractCegarLoop]: === Iteration 727 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:28:14,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:28:14,167 INFO L82 PathProgramCache]: Analyzing trace with hash -878204437, now seen corresponding path program 718 times [2021-03-11 14:28:14,167 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:28:14,167 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [564170827] [2021-03-11 14:28:14,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:28:14,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:28:14,179 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:28:14,180 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:28:14,182 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:28:14,183 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:28:14,201 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:28:14,203 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:28:14,233 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:28:14,235 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:28:14,279 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:28:14,280 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:28:14,340 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:28:14,342 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:28:14,415 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:28:14,416 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:28:14,502 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:28:14,503 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:28:14,607 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:28:14,609 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:28:14,735 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:28:14,736 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:28:14,868 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:28:14,870 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:28:14,988 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:28:14,988 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [564170827] [2021-03-11 14:28:14,988 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:28:14,988 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:28:14,988 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1841250253] [2021-03-11 14:28:14,988 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:28:14,988 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:28:14,988 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:28:14,988 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:28:14,989 INFO L87 Difference]: Start difference. First operand 3132 states and 15557 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:28:15,557 WARN L205 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 40 [2021-03-11 14:28:15,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:28:15,618 INFO L93 Difference]: Finished difference Result 6031 states and 26810 transitions. [2021-03-11 14:28:15,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:28:15,622 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:28:15,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:28:15,635 INFO L225 Difference]: With dead ends: 6031 [2021-03-11 14:28:15,635 INFO L226 Difference]: Without dead ends: 6005 [2021-03-11 14:28:15,635 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 981.4ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:28:15,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6005 states. [2021-03-11 14:28:15,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6005 to 3125. [2021-03-11 14:28:15,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3125 states, 3124 states have (on average 4.9734314980793854) internal successors, (15537), 3124 states have internal predecessors, (15537), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:28:15,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3125 states to 3125 states and 15537 transitions. [2021-03-11 14:28:15,770 INFO L78 Accepts]: Start accepts. Automaton has 3125 states and 15537 transitions. Word has length 31 [2021-03-11 14:28:15,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:28:15,770 INFO L480 AbstractCegarLoop]: Abstraction has 3125 states and 15537 transitions. [2021-03-11 14:28:15,770 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:28:15,770 INFO L276 IsEmpty]: Start isEmpty. Operand 3125 states and 15537 transitions. [2021-03-11 14:28:15,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:28:15,775 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:28:15,775 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:28:15,775 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable726 [2021-03-11 14:28:15,775 INFO L428 AbstractCegarLoop]: === Iteration 728 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:28:15,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:28:15,775 INFO L82 PathProgramCache]: Analyzing trace with hash -1092185565, now seen corresponding path program 719 times [2021-03-11 14:28:15,775 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:28:15,775 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [907359507] [2021-03-11 14:28:15,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:28:15,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:28:15,787 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:28:15,788 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:28:15,790 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:28:15,791 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:28:15,809 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:28:15,810 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:28:15,841 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:28:15,842 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:28:15,886 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:28:15,888 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:28:15,949 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:28:15,951 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:28:16,023 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:28:16,024 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:28:16,114 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:28:16,115 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:28:16,221 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:28:16,223 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:28:16,346 INFO L142 QuantifierPusher]: treesize reduction 72, result has 49.7 percent of original size [2021-03-11 14:28:16,347 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-03-11 14:28:16,484 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:28:16,486 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:28:16,605 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:28:16,605 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [907359507] [2021-03-11 14:28:16,605 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:28:16,605 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:28:16,605 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1006010414] [2021-03-11 14:28:16,605 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:28:16,605 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:28:16,605 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:28:16,605 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:28:16,605 INFO L87 Difference]: Start difference. First operand 3125 states and 15537 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:28:17,316 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 41 [2021-03-11 14:28:17,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:28:17,374 INFO L93 Difference]: Finished difference Result 6040 states and 26827 transitions. [2021-03-11 14:28:17,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:28:17,379 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:28:17,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:28:17,392 INFO L225 Difference]: With dead ends: 6040 [2021-03-11 14:28:17,392 INFO L226 Difference]: Without dead ends: 6018 [2021-03-11 14:28:17,392 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 894.6ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:28:17,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6018 states. [2021-03-11 14:28:17,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6018 to 3134. [2021-03-11 14:28:17,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3134 states, 3133 states have (on average 4.964251516118736) internal successors, (15553), 3133 states have internal predecessors, (15553), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:28:17,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3134 states to 3134 states and 15553 transitions. [2021-03-11 14:28:17,526 INFO L78 Accepts]: Start accepts. Automaton has 3134 states and 15553 transitions. Word has length 31 [2021-03-11 14:28:17,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:28:17,527 INFO L480 AbstractCegarLoop]: Abstraction has 3134 states and 15553 transitions. [2021-03-11 14:28:17,527 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:28:17,527 INFO L276 IsEmpty]: Start isEmpty. Operand 3134 states and 15553 transitions. [2021-03-11 14:28:17,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:28:17,531 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:28:17,531 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:28:17,531 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable727 [2021-03-11 14:28:17,531 INFO L428 AbstractCegarLoop]: === Iteration 729 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:28:17,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:28:17,532 INFO L82 PathProgramCache]: Analyzing trace with hash -1514671291, now seen corresponding path program 720 times [2021-03-11 14:28:17,532 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:28:17,532 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1527095807] [2021-03-11 14:28:17,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:28:17,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:28:17,544 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:28:17,546 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:28:17,547 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:28:17,548 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:28:17,567 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:28:17,568 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:28:17,599 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:28:17,600 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:28:17,645 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:28:17,647 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:28:17,705 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:28:17,707 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:28:17,778 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:28:17,780 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:28:17,866 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:28:17,867 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:28:17,969 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:28:17,971 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:28:18,090 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:28:18,092 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:28:18,263 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:28:18,265 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:28:18,383 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:28:18,383 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1527095807] [2021-03-11 14:28:18,383 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:28:18,383 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:28:18,383 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [535935775] [2021-03-11 14:28:18,383 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:28:18,383 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:28:18,383 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:28:18,383 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:28:18,383 INFO L87 Difference]: Start difference. First operand 3134 states and 15553 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:28:19,005 WARN L205 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 40 [2021-03-11 14:28:19,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:28:19,082 INFO L93 Difference]: Finished difference Result 6037 states and 26813 transitions. [2021-03-11 14:28:19,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:28:19,087 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:28:19,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:28:19,100 INFO L225 Difference]: With dead ends: 6037 [2021-03-11 14:28:19,100 INFO L226 Difference]: Without dead ends: 5977 [2021-03-11 14:28:19,100 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 1002.7ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:28:19,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5977 states. [2021-03-11 14:28:19,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5977 to 3093. [2021-03-11 14:28:19,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3093 states, 3092 states have (on average 5.003880983182406) internal successors, (15472), 3092 states have internal predecessors, (15472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:28:19,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3093 states to 3093 states and 15472 transitions. [2021-03-11 14:28:19,235 INFO L78 Accepts]: Start accepts. Automaton has 3093 states and 15472 transitions. Word has length 31 [2021-03-11 14:28:19,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:28:19,235 INFO L480 AbstractCegarLoop]: Abstraction has 3093 states and 15472 transitions. [2021-03-11 14:28:19,235 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:28:19,235 INFO L276 IsEmpty]: Start isEmpty. Operand 3093 states and 15472 transitions. [2021-03-11 14:28:19,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:28:19,240 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:28:19,240 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:28:19,240 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable728 [2021-03-11 14:28:19,240 INFO L428 AbstractCegarLoop]: === Iteration 730 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:28:19,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:28:19,240 INFO L82 PathProgramCache]: Analyzing trace with hash -1595512533, now seen corresponding path program 721 times [2021-03-11 14:28:19,240 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:28:19,240 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1660483803] [2021-03-11 14:28:19,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:28:19,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:28:19,253 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:28:19,254 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:28:19,255 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:28:19,257 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:28:19,275 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:28:19,277 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:28:19,307 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:28:19,308 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:28:19,352 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:28:19,353 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:28:19,409 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:28:19,410 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:28:19,482 INFO L142 QuantifierPusher]: treesize reduction 45, result has 51.1 percent of original size [2021-03-11 14:28:19,483 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-11 14:28:19,570 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:28:19,571 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:28:19,674 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:28:19,676 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:28:19,790 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:28:19,792 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:28:19,929 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:28:19,930 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:28:20,049 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:28:20,049 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1660483803] [2021-03-11 14:28:20,049 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:28:20,049 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:28:20,050 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1734196605] [2021-03-11 14:28:20,050 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:28:20,050 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:28:20,050 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:28:20,050 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:28:20,050 INFO L87 Difference]: Start difference. First operand 3093 states and 15472 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:28:20,669 WARN L205 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 40 [2021-03-11 14:28:20,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:28:20,710 INFO L93 Difference]: Finished difference Result 6070 states and 26962 transitions. [2021-03-11 14:28:20,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:28:20,714 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:28:20,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:28:20,727 INFO L225 Difference]: With dead ends: 6070 [2021-03-11 14:28:20,728 INFO L226 Difference]: Without dead ends: 6050 [2021-03-11 14:28:20,728 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 966.0ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:28:20,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6050 states. [2021-03-11 14:28:20,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6050 to 3140. [2021-03-11 14:28:20,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3140 states, 3139 states have (on average 4.988212806626314) internal successors, (15658), 3139 states have internal predecessors, (15658), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:28:20,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3140 states to 3140 states and 15658 transitions. [2021-03-11 14:28:20,864 INFO L78 Accepts]: Start accepts. Automaton has 3140 states and 15658 transitions. Word has length 31 [2021-03-11 14:28:20,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:28:20,864 INFO L480 AbstractCegarLoop]: Abstraction has 3140 states and 15658 transitions. [2021-03-11 14:28:20,864 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:28:20,864 INFO L276 IsEmpty]: Start isEmpty. Operand 3140 states and 15658 transitions. [2021-03-11 14:28:20,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:28:20,869 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:28:20,869 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:28:20,869 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable729 [2021-03-11 14:28:20,869 INFO L428 AbstractCegarLoop]: === Iteration 731 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:28:20,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:28:20,869 INFO L82 PathProgramCache]: Analyzing trace with hash 1009511859, now seen corresponding path program 722 times [2021-03-11 14:28:20,869 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:28:20,869 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [456661231] [2021-03-11 14:28:20,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:28:20,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:28:20,882 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:28:20,883 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:28:20,885 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:28:20,886 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:28:20,905 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:28:20,906 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:28:20,937 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:28:20,938 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:28:20,982 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:28:20,983 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:28:21,041 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:28:21,042 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:28:21,116 INFO L142 QuantifierPusher]: treesize reduction 45, result has 51.1 percent of original size [2021-03-11 14:28:21,118 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-11 14:28:21,206 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:28:21,207 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:28:21,308 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:28:21,310 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:28:21,425 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:28:21,427 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:28:21,558 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:28:21,559 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:28:21,677 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:28:21,678 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [456661231] [2021-03-11 14:28:21,678 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:28:21,678 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:28:21,678 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1154248958] [2021-03-11 14:28:21,678 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:28:21,678 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:28:21,678 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:28:21,678 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:28:21,678 INFO L87 Difference]: Start difference. First operand 3140 states and 15658 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:28:22,199 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 38 [2021-03-11 14:28:22,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:28:22,249 INFO L93 Difference]: Finished difference Result 6068 states and 26951 transitions. [2021-03-11 14:28:22,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:28:22,253 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:28:22,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:28:22,266 INFO L225 Difference]: With dead ends: 6068 [2021-03-11 14:28:22,266 INFO L226 Difference]: Without dead ends: 6043 [2021-03-11 14:28:22,266 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 950.2ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:28:22,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6043 states. [2021-03-11 14:28:22,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6043 to 3133. [2021-03-11 14:28:22,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3133 states, 3132 states have (on average 4.992975734355045) internal successors, (15638), 3132 states have internal predecessors, (15638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:28:22,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3133 states to 3133 states and 15638 transitions. [2021-03-11 14:28:22,401 INFO L78 Accepts]: Start accepts. Automaton has 3133 states and 15638 transitions. Word has length 31 [2021-03-11 14:28:22,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:28:22,401 INFO L480 AbstractCegarLoop]: Abstraction has 3133 states and 15638 transitions. [2021-03-11 14:28:22,401 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:28:22,401 INFO L276 IsEmpty]: Start isEmpty. Operand 3133 states and 15638 transitions. [2021-03-11 14:28:22,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:28:22,406 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:28:22,406 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:28:22,406 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable730 [2021-03-11 14:28:22,406 INFO L428 AbstractCegarLoop]: === Iteration 732 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:28:22,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:28:22,406 INFO L82 PathProgramCache]: Analyzing trace with hash 2062987909, now seen corresponding path program 723 times [2021-03-11 14:28:22,406 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:28:22,406 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1739881506] [2021-03-11 14:28:22,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:28:22,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:28:22,419 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:28:22,420 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:28:22,422 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:28:22,423 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:28:22,441 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:28:22,443 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:28:22,473 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:28:22,475 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:28:22,518 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:28:22,520 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:28:22,576 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:28:22,578 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:28:22,655 INFO L142 QuantifierPusher]: treesize reduction 45, result has 51.1 percent of original size [2021-03-11 14:28:22,657 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-11 14:28:22,755 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:28:22,757 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:28:22,869 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:28:22,870 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:28:23,000 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:28:23,002 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:28:23,148 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:28:23,150 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:28:23,279 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:28:23,279 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1739881506] [2021-03-11 14:28:23,279 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:28:23,279 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:28:23,279 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1759517182] [2021-03-11 14:28:23,279 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:28:23,279 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:28:23,279 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:28:23,279 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:28:23,279 INFO L87 Difference]: Start difference. First operand 3133 states and 15638 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:28:23,849 WARN L205 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 40 [2021-03-11 14:28:23,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:28:23,893 INFO L93 Difference]: Finished difference Result 6078 states and 26971 transitions. [2021-03-11 14:28:23,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:28:23,897 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:28:23,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:28:23,911 INFO L225 Difference]: With dead ends: 6078 [2021-03-11 14:28:23,911 INFO L226 Difference]: Without dead ends: 6058 [2021-03-11 14:28:23,911 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 1046.0ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:28:23,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6058 states. [2021-03-11 14:28:24,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6058 to 3144. [2021-03-11 14:28:24,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3144 states, 3143 states have (on average 4.981864460706332) internal successors, (15658), 3143 states have internal predecessors, (15658), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:28:24,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3144 states to 3144 states and 15658 transitions. [2021-03-11 14:28:24,053 INFO L78 Accepts]: Start accepts. Automaton has 3144 states and 15658 transitions. Word has length 31 [2021-03-11 14:28:24,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:28:24,053 INFO L480 AbstractCegarLoop]: Abstraction has 3144 states and 15658 transitions. [2021-03-11 14:28:24,053 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:28:24,053 INFO L276 IsEmpty]: Start isEmpty. Operand 3144 states and 15658 transitions. [2021-03-11 14:28:24,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:28:24,058 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:28:24,058 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:28:24,058 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable731 [2021-03-11 14:28:24,058 INFO L428 AbstractCegarLoop]: === Iteration 733 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:28:24,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:28:24,059 INFO L82 PathProgramCache]: Analyzing trace with hash -894412173, now seen corresponding path program 724 times [2021-03-11 14:28:24,059 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:28:24,059 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [486012518] [2021-03-11 14:28:24,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:28:24,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:28:24,071 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:28:24,073 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:28:24,074 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:28:24,076 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:28:24,095 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:28:24,097 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:28:24,131 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:28:24,133 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:28:24,183 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:28:24,184 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:28:24,248 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:28:24,249 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:28:24,329 INFO L142 QuantifierPusher]: treesize reduction 45, result has 51.1 percent of original size [2021-03-11 14:28:24,331 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-11 14:28:24,426 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:28:24,428 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:28:24,539 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:28:24,540 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:28:24,670 INFO L142 QuantifierPusher]: treesize reduction 72, result has 49.7 percent of original size [2021-03-11 14:28:24,671 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-03-11 14:28:24,818 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:28:24,819 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:28:24,947 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:28:24,947 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [486012518] [2021-03-11 14:28:24,947 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:28:24,947 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:28:24,947 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [681183268] [2021-03-11 14:28:24,947 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:28:24,948 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:28:24,948 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:28:24,948 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:28:24,948 INFO L87 Difference]: Start difference. First operand 3144 states and 15658 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:28:25,468 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 40 [2021-03-11 14:28:25,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:28:25,521 INFO L93 Difference]: Finished difference Result 6080 states and 26965 transitions. [2021-03-11 14:28:25,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:28:25,526 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:28:25,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:28:25,539 INFO L225 Difference]: With dead ends: 6080 [2021-03-11 14:28:25,539 INFO L226 Difference]: Without dead ends: 6047 [2021-03-11 14:28:25,539 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 948.1ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:28:25,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6047 states. [2021-03-11 14:28:25,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6047 to 3133. [2021-03-11 14:28:25,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3133 states, 3132 states have (on average 4.9901021711366536) internal successors, (15629), 3132 states have internal predecessors, (15629), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:28:25,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3133 states to 3133 states and 15629 transitions. [2021-03-11 14:28:25,673 INFO L78 Accepts]: Start accepts. Automaton has 3133 states and 15629 transitions. Word has length 31 [2021-03-11 14:28:25,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:28:25,674 INFO L480 AbstractCegarLoop]: Abstraction has 3133 states and 15629 transitions. [2021-03-11 14:28:25,674 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:28:25,674 INFO L276 IsEmpty]: Start isEmpty. Operand 3133 states and 15629 transitions. [2021-03-11 14:28:25,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:28:25,678 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:28:25,678 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:28:25,678 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable732 [2021-03-11 14:28:25,679 INFO L428 AbstractCegarLoop]: === Iteration 734 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:28:25,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:28:25,679 INFO L82 PathProgramCache]: Analyzing trace with hash -475577467, now seen corresponding path program 725 times [2021-03-11 14:28:25,679 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:28:25,679 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [561505680] [2021-03-11 14:28:25,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:28:25,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:28:25,691 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:28:25,693 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:28:25,694 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:28:25,695 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:28:25,714 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:28:25,715 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:28:25,745 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:28:25,747 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:28:25,790 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:28:25,792 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:28:25,848 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:28:25,850 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:28:25,924 INFO L142 QuantifierPusher]: treesize reduction 45, result has 51.1 percent of original size [2021-03-11 14:28:25,926 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-11 14:28:26,015 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:28:26,017 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:28:26,117 INFO L142 QuantifierPusher]: treesize reduction 54, result has 55.4 percent of original size [2021-03-11 14:28:26,119 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-03-11 14:28:26,308 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 32 [2021-03-11 14:28:26,312 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:28:26,313 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:28:26,442 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:28:26,444 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:28:26,562 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:28:26,562 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [561505680] [2021-03-11 14:28:26,562 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:28:26,562 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:28:26,562 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1417257537] [2021-03-11 14:28:26,562 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:28:26,562 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:28:26,563 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:28:26,563 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:28:26,563 INFO L87 Difference]: Start difference. First operand 3133 states and 15629 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:28:27,145 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 38 [2021-03-11 14:28:27,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:28:27,189 INFO L93 Difference]: Finished difference Result 6071 states and 26947 transitions. [2021-03-11 14:28:27,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:28:27,193 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:28:27,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:28:27,206 INFO L225 Difference]: With dead ends: 6071 [2021-03-11 14:28:27,206 INFO L226 Difference]: Without dead ends: 6053 [2021-03-11 14:28:27,206 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 1024.2ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:28:27,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6053 states. [2021-03-11 14:28:27,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6053 to 3141. [2021-03-11 14:28:27,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3141 states, 3140 states have (on average 4.982165605095541) internal successors, (15644), 3140 states have internal predecessors, (15644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:28:27,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3141 states to 3141 states and 15644 transitions. [2021-03-11 14:28:27,341 INFO L78 Accepts]: Start accepts. Automaton has 3141 states and 15644 transitions. Word has length 31 [2021-03-11 14:28:27,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:28:27,341 INFO L480 AbstractCegarLoop]: Abstraction has 3141 states and 15644 transitions. [2021-03-11 14:28:27,341 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:28:27,341 INFO L276 IsEmpty]: Start isEmpty. Operand 3141 states and 15644 transitions. [2021-03-11 14:28:27,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:28:27,346 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:28:27,346 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:28:27,346 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable733 [2021-03-11 14:28:27,346 INFO L428 AbstractCegarLoop]: === Iteration 735 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:28:27,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:28:27,346 INFO L82 PathProgramCache]: Analyzing trace with hash -1743034645, now seen corresponding path program 726 times [2021-03-11 14:28:27,346 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:28:27,346 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1199505151] [2021-03-11 14:28:27,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:28:27,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:28:27,364 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:28:27,366 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:28:27,368 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:28:27,369 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:28:27,392 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:28:27,393 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:28:27,431 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:28:27,432 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:28:27,484 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:28:27,486 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:28:27,544 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:28:27,545 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:28:27,619 INFO L142 QuantifierPusher]: treesize reduction 45, result has 51.1 percent of original size [2021-03-11 14:28:27,621 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-11 14:28:27,708 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:28:27,710 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:28:27,811 INFO L142 QuantifierPusher]: treesize reduction 54, result has 55.4 percent of original size [2021-03-11 14:28:27,813 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-03-11 14:28:28,003 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 32 [2021-03-11 14:28:28,007 INFO L142 QuantifierPusher]: treesize reduction 72, result has 49.7 percent of original size [2021-03-11 14:28:28,008 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-03-11 14:28:28,145 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:28:28,147 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:28:28,265 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:28:28,266 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1199505151] [2021-03-11 14:28:28,266 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:28:28,266 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:28:28,266 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1958447892] [2021-03-11 14:28:28,266 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:28:28,266 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:28:28,266 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:28:28,266 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:28:28,266 INFO L87 Difference]: Start difference. First operand 3141 states and 15644 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:28:28,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:28:28,773 INFO L93 Difference]: Finished difference Result 6075 states and 26947 transitions. [2021-03-11 14:28:28,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:28:28,777 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:28:28,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:28:28,790 INFO L225 Difference]: With dead ends: 6075 [2021-03-11 14:28:28,790 INFO L226 Difference]: Without dead ends: 6036 [2021-03-11 14:28:28,790 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 966.5ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:28:28,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6036 states. [2021-03-11 14:28:28,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6036 to 3124. [2021-03-11 14:28:28,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3124 states, 3123 states have (on average 4.996477745757285) internal successors, (15604), 3123 states have internal predecessors, (15604), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:28:28,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3124 states to 3124 states and 15604 transitions. [2021-03-11 14:28:28,923 INFO L78 Accepts]: Start accepts. Automaton has 3124 states and 15604 transitions. Word has length 31 [2021-03-11 14:28:28,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:28:28,923 INFO L480 AbstractCegarLoop]: Abstraction has 3124 states and 15604 transitions. [2021-03-11 14:28:28,923 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:28:28,923 INFO L276 IsEmpty]: Start isEmpty. Operand 3124 states and 15604 transitions. [2021-03-11 14:28:28,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:28:28,928 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:28:28,928 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:28:28,928 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable734 [2021-03-11 14:28:28,928 INFO L428 AbstractCegarLoop]: === Iteration 736 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:28:28,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:28:28,928 INFO L82 PathProgramCache]: Analyzing trace with hash 617398473, now seen corresponding path program 727 times [2021-03-11 14:28:28,928 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:28:28,928 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1776869407] [2021-03-11 14:28:28,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:28:28,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:28:28,941 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:28:28,942 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:28:28,944 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:28:28,945 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:28:28,964 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:28:28,965 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:28:28,997 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:28:28,998 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:28:29,043 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:28:29,044 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:28:29,101 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:28:29,102 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:28:29,176 INFO L142 QuantifierPusher]: treesize reduction 45, result has 51.1 percent of original size [2021-03-11 14:28:29,177 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-11 14:28:29,264 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:28:29,266 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:28:29,368 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:28:29,370 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:28:29,485 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:28:29,487 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:28:29,627 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:28:29,628 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:28:29,751 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:28:29,752 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1776869407] [2021-03-11 14:28:29,752 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:28:29,752 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:28:29,752 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2086403351] [2021-03-11 14:28:29,752 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:28:29,752 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:28:29,752 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:28:29,752 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:28:29,752 INFO L87 Difference]: Start difference. First operand 3124 states and 15604 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:28:30,373 WARN L205 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 40 [2021-03-11 14:28:30,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:28:30,415 INFO L93 Difference]: Finished difference Result 6061 states and 26935 transitions. [2021-03-11 14:28:30,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:28:30,419 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:28:30,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:28:30,432 INFO L225 Difference]: With dead ends: 6061 [2021-03-11 14:28:30,432 INFO L226 Difference]: Without dead ends: 6041 [2021-03-11 14:28:30,432 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 985.0ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:28:30,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6041 states. [2021-03-11 14:28:30,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6041 to 3138. [2021-03-11 14:28:30,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3138 states, 3137 states have (on average 4.986930188077781) internal successors, (15644), 3137 states have internal predecessors, (15644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:28:30,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3138 states to 3138 states and 15644 transitions. [2021-03-11 14:28:30,568 INFO L78 Accepts]: Start accepts. Automaton has 3138 states and 15644 transitions. Word has length 31 [2021-03-11 14:28:30,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:28:30,568 INFO L480 AbstractCegarLoop]: Abstraction has 3138 states and 15644 transitions. [2021-03-11 14:28:30,568 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:28:30,568 INFO L276 IsEmpty]: Start isEmpty. Operand 3138 states and 15644 transitions. [2021-03-11 14:28:30,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:28:30,572 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:28:30,572 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:28:30,572 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable735 [2021-03-11 14:28:30,573 INFO L428 AbstractCegarLoop]: === Iteration 737 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:28:30,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:28:30,573 INFO L82 PathProgramCache]: Analyzing trace with hash -1072544431, now seen corresponding path program 728 times [2021-03-11 14:28:30,573 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:28:30,573 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1455589399] [2021-03-11 14:28:30,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:28:30,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:28:30,585 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:28:30,587 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:28:30,588 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:28:30,589 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:28:30,609 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:28:30,611 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:28:30,643 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:28:30,644 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:28:30,689 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:28:30,690 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:28:30,747 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:28:30,749 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:28:30,824 INFO L142 QuantifierPusher]: treesize reduction 45, result has 51.1 percent of original size [2021-03-11 14:28:30,825 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-11 14:28:30,914 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:28:30,916 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:28:31,021 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:28:31,023 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:28:31,145 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:28:31,147 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:28:31,284 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:28:31,285 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:28:31,408 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:28:31,408 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1455589399] [2021-03-11 14:28:31,408 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:28:31,408 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:28:31,408 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [562835354] [2021-03-11 14:28:31,409 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:28:31,409 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:28:31,409 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:28:31,409 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:28:31,409 INFO L87 Difference]: Start difference. First operand 3138 states and 15644 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:28:31,960 WARN L205 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 38 [2021-03-11 14:28:32,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:28:32,013 INFO L93 Difference]: Finished difference Result 6059 states and 26924 transitions. [2021-03-11 14:28:32,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:28:32,018 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:28:32,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:28:32,031 INFO L225 Difference]: With dead ends: 6059 [2021-03-11 14:28:32,031 INFO L226 Difference]: Without dead ends: 6034 [2021-03-11 14:28:32,031 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 979.9ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:28:32,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6034 states. [2021-03-11 14:28:32,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6034 to 3131. [2021-03-11 14:28:32,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3131 states, 3130 states have (on average 4.991693290734824) internal successors, (15624), 3130 states have internal predecessors, (15624), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:28:32,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3131 states to 3131 states and 15624 transitions. [2021-03-11 14:28:32,172 INFO L78 Accepts]: Start accepts. Automaton has 3131 states and 15624 transitions. Word has length 31 [2021-03-11 14:28:32,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:28:32,172 INFO L480 AbstractCegarLoop]: Abstraction has 3131 states and 15624 transitions. [2021-03-11 14:28:32,172 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:28:32,172 INFO L276 IsEmpty]: Start isEmpty. Operand 3131 states and 15624 transitions. [2021-03-11 14:28:32,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:28:32,177 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:28:32,177 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:28:32,177 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable736 [2021-03-11 14:28:32,177 INFO L428 AbstractCegarLoop]: === Iteration 738 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:28:32,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:28:32,177 INFO L82 PathProgramCache]: Analyzing trace with hash -231223999, now seen corresponding path program 729 times [2021-03-11 14:28:32,177 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:28:32,178 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1754522902] [2021-03-11 14:28:32,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:28:32,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:28:32,190 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:28:32,192 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:28:32,193 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:28:32,195 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:28:32,215 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:28:32,216 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:28:32,247 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:28:32,249 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:28:32,297 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:28:32,298 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:28:32,357 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:28:32,358 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:28:32,433 INFO L142 QuantifierPusher]: treesize reduction 45, result has 51.1 percent of original size [2021-03-11 14:28:32,435 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-11 14:28:32,524 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:28:32,526 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:28:32,629 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:28:32,630 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:28:32,750 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:28:32,752 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:28:32,887 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:28:32,889 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:28:33,008 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:28:33,008 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1754522902] [2021-03-11 14:28:33,008 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:28:33,008 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:28:33,008 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1670180563] [2021-03-11 14:28:33,008 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:28:33,008 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:28:33,008 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:28:33,008 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:28:33,008 INFO L87 Difference]: Start difference. First operand 3131 states and 15624 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:28:33,545 WARN L205 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 41 [2021-03-11 14:28:33,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:28:33,587 INFO L93 Difference]: Finished difference Result 6063 states and 26933 transitions. [2021-03-11 14:28:33,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:28:33,591 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:28:33,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:28:33,604 INFO L225 Difference]: With dead ends: 6063 [2021-03-11 14:28:33,604 INFO L226 Difference]: Without dead ends: 6043 [2021-03-11 14:28:33,604 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 988.1ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:28:33,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6043 states. [2021-03-11 14:28:33,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6043 to 3139. [2021-03-11 14:28:33,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3139 states, 3138 states have (on average 4.983747609942639) internal successors, (15639), 3138 states have internal predecessors, (15639), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:28:33,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3139 states to 3139 states and 15639 transitions. [2021-03-11 14:28:33,738 INFO L78 Accepts]: Start accepts. Automaton has 3139 states and 15639 transitions. Word has length 31 [2021-03-11 14:28:33,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:28:33,738 INFO L480 AbstractCegarLoop]: Abstraction has 3139 states and 15639 transitions. [2021-03-11 14:28:33,738 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:28:33,738 INFO L276 IsEmpty]: Start isEmpty. Operand 3139 states and 15639 transitions. [2021-03-11 14:28:33,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:28:33,743 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:28:33,743 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:28:33,743 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable737 [2021-03-11 14:28:33,743 INFO L428 AbstractCegarLoop]: === Iteration 739 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:28:33,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:28:33,743 INFO L82 PathProgramCache]: Analyzing trace with hash 683857489, now seen corresponding path program 730 times [2021-03-11 14:28:33,743 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:28:33,743 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1665133311] [2021-03-11 14:28:33,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:28:33,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:28:33,757 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:28:33,758 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:28:33,759 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:28:33,761 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:28:33,780 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:28:33,781 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:28:33,812 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:28:33,813 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:28:33,858 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:28:33,859 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:28:33,916 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:28:33,917 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:28:33,991 INFO L142 QuantifierPusher]: treesize reduction 45, result has 51.1 percent of original size [2021-03-11 14:28:33,993 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-11 14:28:34,081 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:28:34,082 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:28:34,184 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:28:34,186 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:28:34,304 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:28:34,306 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:28:34,440 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:28:34,442 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:28:34,564 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:28:34,565 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1665133311] [2021-03-11 14:28:34,565 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:28:34,565 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:28:34,565 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1246619254] [2021-03-11 14:28:34,565 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:28:34,565 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:28:34,565 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:28:34,565 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:28:34,565 INFO L87 Difference]: Start difference. First operand 3139 states and 15639 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:28:35,178 WARN L205 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 40 [2021-03-11 14:28:35,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:28:35,233 INFO L93 Difference]: Finished difference Result 6062 states and 26923 transitions. [2021-03-11 14:28:35,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:28:35,237 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:28:35,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:28:35,250 INFO L225 Difference]: With dead ends: 6062 [2021-03-11 14:28:35,250 INFO L226 Difference]: Without dead ends: 6035 [2021-03-11 14:28:35,251 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 976.7ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:28:35,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6035 states. [2021-03-11 14:28:35,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6035 to 3131. [2021-03-11 14:28:35,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3131 states, 3130 states have (on average 4.989456869009585) internal successors, (15617), 3130 states have internal predecessors, (15617), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:28:35,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3131 states to 3131 states and 15617 transitions. [2021-03-11 14:28:35,385 INFO L78 Accepts]: Start accepts. Automaton has 3131 states and 15617 transitions. Word has length 31 [2021-03-11 14:28:35,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:28:35,385 INFO L480 AbstractCegarLoop]: Abstraction has 3131 states and 15617 transitions. [2021-03-11 14:28:35,385 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:28:35,385 INFO L276 IsEmpty]: Start isEmpty. Operand 3131 states and 15617 transitions. [2021-03-11 14:28:35,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:28:35,390 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:28:35,390 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:28:35,390 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable738 [2021-03-11 14:28:35,390 INFO L428 AbstractCegarLoop]: === Iteration 740 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:28:35,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:28:35,390 INFO L82 PathProgramCache]: Analyzing trace with hash 1525177921, now seen corresponding path program 731 times [2021-03-11 14:28:35,390 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:28:35,390 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [695120741] [2021-03-11 14:28:35,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:28:35,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:28:35,403 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:28:35,404 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:28:35,406 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:28:35,407 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:28:35,428 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:28:35,429 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:28:35,465 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:28:35,466 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:28:35,512 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:28:35,513 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:28:35,570 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:28:35,572 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:28:35,646 INFO L142 QuantifierPusher]: treesize reduction 45, result has 51.1 percent of original size [2021-03-11 14:28:35,647 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-11 14:28:35,737 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:28:35,738 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:28:35,841 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:28:35,842 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:28:35,961 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:28:35,962 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:28:36,097 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:28:36,099 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:28:36,221 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:28:36,222 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [695120741] [2021-03-11 14:28:36,222 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:28:36,222 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:28:36,222 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [45072470] [2021-03-11 14:28:36,222 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:28:36,222 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:28:36,222 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:28:36,222 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:28:36,222 INFO L87 Difference]: Start difference. First operand 3131 states and 15617 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:28:36,933 WARN L205 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 38 [2021-03-11 14:28:36,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:28:36,977 INFO L93 Difference]: Finished difference Result 6058 states and 26915 transitions. [2021-03-11 14:28:36,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:28:36,981 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:28:36,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:28:36,994 INFO L225 Difference]: With dead ends: 6058 [2021-03-11 14:28:36,994 INFO L226 Difference]: Without dead ends: 6040 [2021-03-11 14:28:36,994 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 972.8ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:28:37,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6040 states. [2021-03-11 14:28:37,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6040 to 3138. [2021-03-11 14:28:37,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3138 states, 3137 states have (on average 4.9824673254701946) internal successors, (15630), 3137 states have internal predecessors, (15630), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:28:37,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3138 states to 3138 states and 15630 transitions. [2021-03-11 14:28:37,129 INFO L78 Accepts]: Start accepts. Automaton has 3138 states and 15630 transitions. Word has length 31 [2021-03-11 14:28:37,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:28:37,129 INFO L480 AbstractCegarLoop]: Abstraction has 3138 states and 15630 transitions. [2021-03-11 14:28:37,129 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:28:37,129 INFO L276 IsEmpty]: Start isEmpty. Operand 3138 states and 15630 transitions. [2021-03-11 14:28:37,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:28:37,134 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:28:37,134 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:28:37,134 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable739 [2021-03-11 14:28:37,134 INFO L428 AbstractCegarLoop]: === Iteration 741 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:28:37,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:28:37,134 INFO L82 PathProgramCache]: Analyzing trace with hash -164764983, now seen corresponding path program 732 times [2021-03-11 14:28:37,134 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:28:37,134 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [235597482] [2021-03-11 14:28:37,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:28:37,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:28:37,146 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:28:37,148 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:28:37,149 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:28:37,150 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:28:37,169 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:28:37,170 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:28:37,201 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:28:37,203 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:28:37,248 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:28:37,249 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:28:37,306 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:28:37,307 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:28:37,383 INFO L142 QuantifierPusher]: treesize reduction 45, result has 51.1 percent of original size [2021-03-11 14:28:37,384 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-11 14:28:37,473 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:28:37,474 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:28:37,581 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:28:37,583 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:28:37,704 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:28:37,706 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:28:37,840 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:28:37,842 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:28:37,963 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:28:37,963 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [235597482] [2021-03-11 14:28:37,963 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:28:37,963 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:28:37,963 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417355328] [2021-03-11 14:28:37,963 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:28:37,963 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:28:37,964 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:28:37,964 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:28:37,964 INFO L87 Difference]: Start difference. First operand 3138 states and 15630 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:28:38,529 WARN L205 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 40 [2021-03-11 14:28:38,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:28:38,582 INFO L93 Difference]: Finished difference Result 6059 states and 26910 transitions. [2021-03-11 14:28:38,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:28:38,587 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:28:38,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:28:38,599 INFO L225 Difference]: With dead ends: 6059 [2021-03-11 14:28:38,600 INFO L226 Difference]: Without dead ends: 6026 [2021-03-11 14:28:38,600 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 987.0ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:28:38,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6026 states. [2021-03-11 14:28:38,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6026 to 3124. [2021-03-11 14:28:38,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3124 states, 3123 states have (on average 4.994236311239193) internal successors, (15597), 3123 states have internal predecessors, (15597), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:28:38,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3124 states to 3124 states and 15597 transitions. [2021-03-11 14:28:38,735 INFO L78 Accepts]: Start accepts. Automaton has 3124 states and 15597 transitions. Word has length 31 [2021-03-11 14:28:38,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:28:38,735 INFO L480 AbstractCegarLoop]: Abstraction has 3124 states and 15597 transitions. [2021-03-11 14:28:38,735 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:28:38,735 INFO L276 IsEmpty]: Start isEmpty. Operand 3124 states and 15597 transitions. [2021-03-11 14:28:38,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:28:38,739 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:28:38,740 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:28:38,740 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable740 [2021-03-11 14:28:38,740 INFO L428 AbstractCegarLoop]: === Iteration 742 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:28:38,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:28:38,740 INFO L82 PathProgramCache]: Analyzing trace with hash 1725295625, now seen corresponding path program 733 times [2021-03-11 14:28:38,740 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:28:38,740 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1970893384] [2021-03-11 14:28:38,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:28:38,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:28:38,753 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:28:38,754 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:28:38,755 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:28:38,757 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:28:38,775 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:28:38,777 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:28:38,808 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:28:38,809 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:28:38,854 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:28:38,855 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:28:38,912 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:28:38,914 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:28:38,989 INFO L142 QuantifierPusher]: treesize reduction 45, result has 51.1 percent of original size [2021-03-11 14:28:38,991 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-11 14:28:39,080 INFO L142 QuantifierPusher]: treesize reduction 54, result has 50.5 percent of original size [2021-03-11 14:28:39,081 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-11 14:28:39,187 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:28:39,188 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:28:39,311 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:28:39,313 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:28:39,448 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:28:39,450 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:28:39,574 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:28:39,574 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1970893384] [2021-03-11 14:28:39,574 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:28:39,574 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:28:39,574 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [905780018] [2021-03-11 14:28:39,574 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:28:39,574 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:28:39,574 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:28:39,574 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:28:39,574 INFO L87 Difference]: Start difference. First operand 3124 states and 15597 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:28:40,143 WARN L205 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 41 [2021-03-11 14:28:40,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:28:40,187 INFO L93 Difference]: Finished difference Result 6083 states and 26975 transitions. [2021-03-11 14:28:40,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:28:40,191 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:28:40,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:28:40,204 INFO L225 Difference]: With dead ends: 6083 [2021-03-11 14:28:40,204 INFO L226 Difference]: Without dead ends: 6063 [2021-03-11 14:28:40,204 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 996.3ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:28:40,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6063 states. [2021-03-11 14:28:40,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6063 to 3146. [2021-03-11 14:28:40,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3146 states, 3145 states have (on average 4.977424483306836) internal successors, (15654), 3145 states have internal predecessors, (15654), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:28:40,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3146 states to 3146 states and 15654 transitions. [2021-03-11 14:28:40,340 INFO L78 Accepts]: Start accepts. Automaton has 3146 states and 15654 transitions. Word has length 31 [2021-03-11 14:28:40,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:28:40,340 INFO L480 AbstractCegarLoop]: Abstraction has 3146 states and 15654 transitions. [2021-03-11 14:28:40,341 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:28:40,341 INFO L276 IsEmpty]: Start isEmpty. Operand 3146 states and 15654 transitions. [2021-03-11 14:28:40,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:28:40,345 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:28:40,345 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:28:40,345 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable741 [2021-03-11 14:28:40,345 INFO L428 AbstractCegarLoop]: === Iteration 743 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:28:40,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:28:40,346 INFO L82 PathProgramCache]: Analyzing trace with hash -1232104457, now seen corresponding path program 734 times [2021-03-11 14:28:40,346 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:28:40,346 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [386055550] [2021-03-11 14:28:40,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:28:40,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:28:40,358 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:28:40,360 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:28:40,361 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:28:40,363 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:28:40,381 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:28:40,383 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:28:40,414 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:28:40,416 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:28:40,461 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:28:40,462 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:28:40,520 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:28:40,522 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:28:40,599 INFO L142 QuantifierPusher]: treesize reduction 45, result has 51.1 percent of original size [2021-03-11 14:28:40,600 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-11 14:28:40,693 INFO L142 QuantifierPusher]: treesize reduction 54, result has 50.5 percent of original size [2021-03-11 14:28:40,694 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-11 14:28:40,802 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:28:40,803 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:28:40,926 INFO L142 QuantifierPusher]: treesize reduction 72, result has 49.7 percent of original size [2021-03-11 14:28:40,927 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-03-11 14:28:41,069 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:28:41,071 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:28:41,195 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:28:41,195 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [386055550] [2021-03-11 14:28:41,195 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:28:41,195 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:28:41,195 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1648589134] [2021-03-11 14:28:41,196 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:28:41,196 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:28:41,196 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:28:41,196 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:28:41,196 INFO L87 Difference]: Start difference. First operand 3146 states and 15654 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:28:41,868 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 41 [2021-03-11 14:28:41,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:28:41,920 INFO L93 Difference]: Finished difference Result 6085 states and 26969 transitions. [2021-03-11 14:28:41,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:28:41,925 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:28:41,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:28:41,939 INFO L225 Difference]: With dead ends: 6085 [2021-03-11 14:28:41,939 INFO L226 Difference]: Without dead ends: 6052 [2021-03-11 14:28:41,939 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 917.2ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:28:42,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6052 states. [2021-03-11 14:28:42,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6052 to 3135. [2021-03-11 14:28:42,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3135 states, 3134 states have (on average 4.985322271857052) internal successors, (15624), 3134 states have internal predecessors, (15624), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:28:42,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3135 states to 3135 states and 15624 transitions. [2021-03-11 14:28:42,081 INFO L78 Accepts]: Start accepts. Automaton has 3135 states and 15624 transitions. Word has length 31 [2021-03-11 14:28:42,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:28:42,082 INFO L480 AbstractCegarLoop]: Abstraction has 3135 states and 15624 transitions. [2021-03-11 14:28:42,082 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:28:42,082 INFO L276 IsEmpty]: Start isEmpty. Operand 3135 states and 15624 transitions. [2021-03-11 14:28:42,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:28:42,087 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:28:42,087 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:28:42,087 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable742 [2021-03-11 14:28:42,087 INFO L428 AbstractCegarLoop]: === Iteration 744 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:28:42,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:28:42,087 INFO L82 PathProgramCache]: Analyzing trace with hash 1513140007, now seen corresponding path program 735 times [2021-03-11 14:28:42,087 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:28:42,087 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [281446975] [2021-03-11 14:28:42,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:28:42,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:28:42,100 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:28:42,101 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:28:42,103 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:28:42,104 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:28:42,125 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:28:42,127 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:28:42,161 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:28:42,163 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:28:42,213 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:28:42,214 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:28:42,278 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:28:42,280 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:28:42,364 INFO L142 QuantifierPusher]: treesize reduction 45, result has 51.1 percent of original size [2021-03-11 14:28:42,366 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-11 14:28:42,466 INFO L142 QuantifierPusher]: treesize reduction 54, result has 50.5 percent of original size [2021-03-11 14:28:42,468 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-11 14:28:42,584 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:28:42,585 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:28:42,715 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:28:42,717 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:28:42,866 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:28:42,868 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:28:43,000 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:28:43,001 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [281446975] [2021-03-11 14:28:43,001 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:28:43,001 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:28:43,001 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [825127334] [2021-03-11 14:28:43,001 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:28:43,001 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:28:43,001 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:28:43,001 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:28:43,001 INFO L87 Difference]: Start difference. First operand 3135 states and 15624 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:28:43,727 WARN L205 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 41 [2021-03-11 14:28:43,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:28:43,768 INFO L93 Difference]: Finished difference Result 6077 states and 26954 transitions. [2021-03-11 14:28:43,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:28:43,773 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:28:43,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:28:43,785 INFO L225 Difference]: With dead ends: 6077 [2021-03-11 14:28:43,785 INFO L226 Difference]: Without dead ends: 6057 [2021-03-11 14:28:43,785 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 1087.5ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:28:43,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6057 states. [2021-03-11 14:28:43,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6057 to 3143. [2021-03-11 14:28:43,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3143 states, 3142 states have (on average 4.977402928071292) internal successors, (15639), 3142 states have internal predecessors, (15639), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:28:43,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3143 states to 3143 states and 15639 transitions. [2021-03-11 14:28:43,920 INFO L78 Accepts]: Start accepts. Automaton has 3143 states and 15639 transitions. Word has length 31 [2021-03-11 14:28:43,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:28:43,920 INFO L480 AbstractCegarLoop]: Abstraction has 3143 states and 15639 transitions. [2021-03-11 14:28:43,920 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:28:43,920 INFO L276 IsEmpty]: Start isEmpty. Operand 3143 states and 15639 transitions. [2021-03-11 14:28:43,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:28:43,925 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:28:43,925 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:28:43,925 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable743 [2021-03-11 14:28:43,925 INFO L428 AbstractCegarLoop]: === Iteration 745 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:28:43,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:28:43,925 INFO L82 PathProgramCache]: Analyzing trace with hash -1866745801, now seen corresponding path program 736 times [2021-03-11 14:28:43,925 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:28:43,925 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1735422502] [2021-03-11 14:28:43,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:28:43,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:28:43,938 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:28:43,939 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:28:43,940 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:28:43,942 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:28:43,960 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:28:43,962 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:28:43,993 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:28:43,994 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:28:44,039 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:28:44,041 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:28:44,098 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:28:44,100 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:28:44,177 INFO L142 QuantifierPusher]: treesize reduction 45, result has 51.1 percent of original size [2021-03-11 14:28:44,178 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-11 14:28:44,268 INFO L142 QuantifierPusher]: treesize reduction 54, result has 50.5 percent of original size [2021-03-11 14:28:44,270 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-11 14:28:44,375 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:28:44,376 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:28:44,496 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:28:44,497 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:28:44,632 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:28:44,634 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:28:44,759 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:28:44,759 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1735422502] [2021-03-11 14:28:44,759 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:28:44,759 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:28:44,759 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [222909522] [2021-03-11 14:28:44,759 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:28:44,759 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:28:44,759 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:28:44,759 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:28:44,759 INFO L87 Difference]: Start difference. First operand 3143 states and 15639 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:28:45,384 WARN L205 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 40 [2021-03-11 14:28:45,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:28:45,440 INFO L93 Difference]: Finished difference Result 6076 states and 26944 transitions. [2021-03-11 14:28:45,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:28:45,445 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:28:45,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:28:45,458 INFO L225 Difference]: With dead ends: 6076 [2021-03-11 14:28:45,458 INFO L226 Difference]: Without dead ends: 6049 [2021-03-11 14:28:45,458 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 994.5ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:28:45,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6049 states. [2021-03-11 14:28:45,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6049 to 3135. [2021-03-11 14:28:45,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3135 states, 3134 states have (on average 4.982769623484365) internal successors, (15616), 3134 states have internal predecessors, (15616), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:28:45,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3135 states to 3135 states and 15616 transitions. [2021-03-11 14:28:45,594 INFO L78 Accepts]: Start accepts. Automaton has 3135 states and 15616 transitions. Word has length 31 [2021-03-11 14:28:45,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:28:45,594 INFO L480 AbstractCegarLoop]: Abstraction has 3135 states and 15616 transitions. [2021-03-11 14:28:45,594 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:28:45,594 INFO L276 IsEmpty]: Start isEmpty. Operand 3135 states and 15616 transitions. [2021-03-11 14:28:45,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:28:45,599 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:28:45,599 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:28:45,599 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable744 [2021-03-11 14:28:45,599 INFO L428 AbstractCegarLoop]: === Iteration 746 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:28:45,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:28:45,599 INFO L82 PathProgramCache]: Analyzing trace with hash 1365617895, now seen corresponding path program 737 times [2021-03-11 14:28:45,599 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:28:45,599 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [466093618] [2021-03-11 14:28:45,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:28:45,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:28:45,612 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:28:45,613 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:28:45,615 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:28:45,616 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:28:45,635 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:28:45,636 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:28:45,668 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:28:45,669 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:28:45,714 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:28:45,716 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:28:45,775 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:28:45,776 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:28:45,853 INFO L142 QuantifierPusher]: treesize reduction 45, result has 51.1 percent of original size [2021-03-11 14:28:45,855 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-11 14:28:45,946 INFO L142 QuantifierPusher]: treesize reduction 54, result has 50.5 percent of original size [2021-03-11 14:28:45,947 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-11 14:28:46,056 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:28:46,057 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:28:46,182 INFO L142 QuantifierPusher]: treesize reduction 72, result has 49.7 percent of original size [2021-03-11 14:28:46,183 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-03-11 14:28:46,329 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:28:46,331 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:28:46,454 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:28:46,454 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [466093618] [2021-03-11 14:28:46,454 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:28:46,454 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:28:46,454 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [183207745] [2021-03-11 14:28:46,454 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:28:46,454 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:28:46,454 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:28:46,454 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:28:46,455 INFO L87 Difference]: Start difference. First operand 3135 states and 15616 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:28:47,257 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 40 [2021-03-11 14:28:47,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:28:47,302 INFO L93 Difference]: Finished difference Result 6082 states and 26954 transitions. [2021-03-11 14:28:47,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:28:47,306 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:28:47,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:28:47,319 INFO L225 Difference]: With dead ends: 6082 [2021-03-11 14:28:47,319 INFO L226 Difference]: Without dead ends: 6060 [2021-03-11 14:28:47,319 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 917.4ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:28:47,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6060 states. [2021-03-11 14:28:47,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6060 to 3144. [2021-03-11 14:28:47,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3144 states, 3143 states have (on average 4.97359210944957) internal successors, (15632), 3143 states have internal predecessors, (15632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:28:47,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3144 states to 3144 states and 15632 transitions. [2021-03-11 14:28:47,453 INFO L78 Accepts]: Start accepts. Automaton has 3144 states and 15632 transitions. Word has length 31 [2021-03-11 14:28:47,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:28:47,453 INFO L480 AbstractCegarLoop]: Abstraction has 3144 states and 15632 transitions. [2021-03-11 14:28:47,453 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:28:47,453 INFO L276 IsEmpty]: Start isEmpty. Operand 3144 states and 15632 transitions. [2021-03-11 14:28:47,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:28:47,457 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:28:47,458 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:28:47,458 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable745 [2021-03-11 14:28:47,458 INFO L428 AbstractCegarLoop]: === Iteration 747 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:28:47,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:28:47,458 INFO L82 PathProgramCache]: Analyzing trace with hash 943132169, now seen corresponding path program 738 times [2021-03-11 14:28:47,458 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:28:47,458 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1266595748] [2021-03-11 14:28:47,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:28:47,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:28:47,476 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:28:47,478 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:28:47,479 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:28:47,481 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:28:47,504 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:28:47,506 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:28:47,544 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:28:47,546 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:28:47,600 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:28:47,602 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:28:47,671 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:28:47,672 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:28:47,766 INFO L142 QuantifierPusher]: treesize reduction 45, result has 51.1 percent of original size [2021-03-11 14:28:47,768 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-11 14:28:47,873 INFO L142 QuantifierPusher]: treesize reduction 54, result has 50.5 percent of original size [2021-03-11 14:28:47,874 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-11 14:28:47,980 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:28:47,982 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:28:48,103 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:28:48,105 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:28:48,249 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:28:48,250 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:28:48,372 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:28:48,373 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1266595748] [2021-03-11 14:28:48,373 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:28:48,373 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:28:48,373 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1083420820] [2021-03-11 14:28:48,373 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:28:48,373 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:28:48,373 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:28:48,373 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:28:48,373 INFO L87 Difference]: Start difference. First operand 3144 states and 15632 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:28:49,263 WARN L205 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 39 [2021-03-11 14:28:49,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:28:49,325 INFO L93 Difference]: Finished difference Result 6079 states and 26940 transitions. [2021-03-11 14:28:49,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:28:49,329 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:28:49,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:28:49,342 INFO L225 Difference]: With dead ends: 6079 [2021-03-11 14:28:49,342 INFO L226 Difference]: Without dead ends: 6040 [2021-03-11 14:28:49,342 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 1063.3ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:28:49,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6040 states. [2021-03-11 14:28:49,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6040 to 3124. [2021-03-11 14:28:49,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3124 states, 3123 states have (on average 4.991034261927633) internal successors, (15587), 3123 states have internal predecessors, (15587), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:28:49,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3124 states to 3124 states and 15587 transitions. [2021-03-11 14:28:49,476 INFO L78 Accepts]: Start accepts. Automaton has 3124 states and 15587 transitions. Word has length 31 [2021-03-11 14:28:49,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:28:49,476 INFO L480 AbstractCegarLoop]: Abstraction has 3124 states and 15587 transitions. [2021-03-11 14:28:49,476 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:28:49,476 INFO L276 IsEmpty]: Start isEmpty. Operand 3124 states and 15587 transitions. [2021-03-11 14:28:49,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:28:49,481 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:28:49,481 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:28:49,481 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable746 [2021-03-11 14:28:49,481 INFO L428 AbstractCegarLoop]: === Iteration 748 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:28:49,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:28:49,481 INFO L82 PathProgramCache]: Analyzing trace with hash -1350762607, now seen corresponding path program 739 times [2021-03-11 14:28:49,481 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:28:49,481 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1251977751] [2021-03-11 14:28:49,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:28:49,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:28:49,493 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:28:49,495 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:28:49,496 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:28:49,498 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:28:49,517 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:28:49,518 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:28:49,549 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:28:49,551 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:28:49,598 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:28:49,599 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:28:49,659 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:28:49,660 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:28:49,737 INFO L142 QuantifierPusher]: treesize reduction 45, result has 51.1 percent of original size [2021-03-11 14:28:49,739 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-11 14:28:49,832 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:28:49,834 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:28:49,939 INFO L142 QuantifierPusher]: treesize reduction 54, result has 55.4 percent of original size [2021-03-11 14:28:49,941 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-03-11 14:28:50,141 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 32 [2021-03-11 14:28:50,144 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:28:50,146 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:28:50,284 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:28:50,285 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:28:50,412 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:28:50,412 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1251977751] [2021-03-11 14:28:50,412 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:28:50,412 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:28:50,412 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [979154906] [2021-03-11 14:28:50,412 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:28:50,413 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:28:50,413 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:28:50,413 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:28:50,413 INFO L87 Difference]: Start difference. First operand 3124 states and 15587 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:28:51,113 WARN L205 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 37 [2021-03-11 14:28:51,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:28:51,159 INFO L93 Difference]: Finished difference Result 6067 states and 26929 transitions. [2021-03-11 14:28:51,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:28:51,164 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:28:51,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:28:51,177 INFO L225 Difference]: With dead ends: 6067 [2021-03-11 14:28:51,177 INFO L226 Difference]: Without dead ends: 6049 [2021-03-11 14:28:51,177 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 1080.8ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:28:51,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6049 states. [2021-03-11 14:28:51,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6049 to 3140. [2021-03-11 14:28:51,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3140 states, 3139 states have (on average 4.9799299139853455) internal successors, (15632), 3139 states have internal predecessors, (15632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:28:51,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3140 states to 3140 states and 15632 transitions. [2021-03-11 14:28:51,313 INFO L78 Accepts]: Start accepts. Automaton has 3140 states and 15632 transitions. Word has length 31 [2021-03-11 14:28:51,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:28:51,314 INFO L480 AbstractCegarLoop]: Abstraction has 3140 states and 15632 transitions. [2021-03-11 14:28:51,314 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:28:51,314 INFO L276 IsEmpty]: Start isEmpty. Operand 3140 states and 15632 transitions. [2021-03-11 14:28:51,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:28:51,318 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:28:51,318 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:28:51,318 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable747 [2021-03-11 14:28:51,318 INFO L428 AbstractCegarLoop]: === Iteration 749 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:28:51,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:28:51,319 INFO L82 PathProgramCache]: Analyzing trace with hash 1676747511, now seen corresponding path program 740 times [2021-03-11 14:28:51,319 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:28:51,319 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2076885087] [2021-03-11 14:28:51,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:28:51,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:28:51,331 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:28:51,333 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:28:51,334 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:28:51,335 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:28:51,355 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:28:51,356 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:28:51,388 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:28:51,390 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:28:51,436 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:28:51,437 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:28:51,496 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:28:51,498 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:28:51,576 INFO L142 QuantifierPusher]: treesize reduction 45, result has 51.1 percent of original size [2021-03-11 14:28:51,578 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-11 14:28:51,670 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:28:51,672 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:28:51,777 INFO L142 QuantifierPusher]: treesize reduction 54, result has 55.4 percent of original size [2021-03-11 14:28:51,779 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-03-11 14:28:51,979 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 32 [2021-03-11 14:28:51,982 INFO L142 QuantifierPusher]: treesize reduction 72, result has 49.7 percent of original size [2021-03-11 14:28:51,984 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-03-11 14:28:52,126 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:28:52,128 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:28:52,252 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:28:52,252 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2076885087] [2021-03-11 14:28:52,252 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:28:52,252 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:28:52,253 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [161476887] [2021-03-11 14:28:52,253 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:28:52,253 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:28:52,253 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:28:52,253 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:28:52,253 INFO L87 Difference]: Start difference. First operand 3140 states and 15632 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:28:53,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:28:53,109 INFO L93 Difference]: Finished difference Result 6071 states and 26929 transitions. [2021-03-11 14:28:53,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:28:53,114 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:28:53,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:28:53,127 INFO L225 Difference]: With dead ends: 6071 [2021-03-11 14:28:53,127 INFO L226 Difference]: Without dead ends: 6041 [2021-03-11 14:28:53,127 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 993.8ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:28:53,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6041 states. [2021-03-11 14:28:53,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6041 to 3132. [2021-03-11 14:28:53,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3132 states, 3131 states have (on average 4.985308208240179) internal successors, (15609), 3131 states have internal predecessors, (15609), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:28:53,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3132 states to 3132 states and 15609 transitions. [2021-03-11 14:28:53,263 INFO L78 Accepts]: Start accepts. Automaton has 3132 states and 15609 transitions. Word has length 31 [2021-03-11 14:28:53,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:28:53,263 INFO L480 AbstractCegarLoop]: Abstraction has 3132 states and 15609 transitions. [2021-03-11 14:28:53,263 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:28:53,263 INFO L276 IsEmpty]: Start isEmpty. Operand 3132 states and 15609 transitions. [2021-03-11 14:28:53,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:28:53,267 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:28:53,268 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:28:53,268 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable748 [2021-03-11 14:28:53,268 INFO L428 AbstractCegarLoop]: === Iteration 750 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:28:53,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:28:53,268 INFO L82 PathProgramCache]: Analyzing trace with hash -1562918225, now seen corresponding path program 741 times [2021-03-11 14:28:53,268 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:28:53,268 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2145464464] [2021-03-11 14:28:53,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:28:53,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:28:53,285 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:28:53,286 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:28:53,288 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:28:53,289 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:28:53,309 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:28:53,310 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:28:53,342 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:28:53,344 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:28:53,391 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:28:53,392 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:28:53,452 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:28:53,453 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:28:53,531 INFO L142 QuantifierPusher]: treesize reduction 45, result has 51.1 percent of original size [2021-03-11 14:28:53,533 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-11 14:28:53,627 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:28:53,629 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:28:53,738 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:28:53,740 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:28:53,862 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:28:53,864 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:28:54,002 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:28:54,003 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:28:54,129 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:28:54,129 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2145464464] [2021-03-11 14:28:54,129 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:28:54,129 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:28:54,129 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407764767] [2021-03-11 14:28:54,129 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:28:54,129 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:28:54,129 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:28:54,129 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:28:54,129 INFO L87 Difference]: Start difference. First operand 3132 states and 15609 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:28:54,660 WARN L205 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 37 [2021-03-11 14:28:54,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:28:54,708 INFO L93 Difference]: Finished difference Result 6063 states and 26914 transitions. [2021-03-11 14:28:54,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:28:54,712 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:28:54,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:28:54,725 INFO L225 Difference]: With dead ends: 6063 [2021-03-11 14:28:54,725 INFO L226 Difference]: Without dead ends: 6045 [2021-03-11 14:28:54,725 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 1014.1ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:28:54,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6045 states. [2021-03-11 14:28:54,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6045 to 3139. [2021-03-11 14:28:54,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3139 states, 3138 states have (on average 4.978330146590185) internal successors, (15622), 3138 states have internal predecessors, (15622), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:28:54,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3139 states to 3139 states and 15622 transitions. [2021-03-11 14:28:54,860 INFO L78 Accepts]: Start accepts. Automaton has 3139 states and 15622 transitions. Word has length 31 [2021-03-11 14:28:54,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:28:54,860 INFO L480 AbstractCegarLoop]: Abstraction has 3139 states and 15622 transitions. [2021-03-11 14:28:54,860 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:28:54,860 INFO L276 IsEmpty]: Start isEmpty. Operand 3139 states and 15622 transitions. [2021-03-11 14:28:54,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:28:54,865 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:28:54,865 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:28:54,865 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable749 [2021-03-11 14:28:54,865 INFO L428 AbstractCegarLoop]: === Iteration 751 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:28:54,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:28:54,865 INFO L82 PathProgramCache]: Analyzing trace with hash 1042106167, now seen corresponding path program 742 times [2021-03-11 14:28:54,865 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:28:54,866 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [556013695] [2021-03-11 14:28:54,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:28:54,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:28:54,878 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:28:54,880 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:28:54,881 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:28:54,882 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:28:54,903 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:28:54,904 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:28:54,940 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:28:54,941 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:28:54,987 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:28:54,989 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:28:55,048 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:28:55,049 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:28:55,127 INFO L142 QuantifierPusher]: treesize reduction 45, result has 51.1 percent of original size [2021-03-11 14:28:55,129 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-11 14:28:55,223 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:28:55,224 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:28:55,330 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:28:55,331 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:28:55,452 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:28:55,454 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:28:55,594 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:28:55,596 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:28:55,722 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:28:55,722 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [556013695] [2021-03-11 14:28:55,723 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:28:55,723 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:28:55,723 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1600868073] [2021-03-11 14:28:55,723 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:28:55,723 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:28:55,723 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:28:55,723 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:28:55,723 INFO L87 Difference]: Start difference. First operand 3139 states and 15622 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:28:56,236 WARN L205 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 39 [2021-03-11 14:28:56,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:28:56,292 INFO L93 Difference]: Finished difference Result 6064 states and 26909 transitions. [2021-03-11 14:28:56,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:28:56,296 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:28:56,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:28:56,309 INFO L225 Difference]: With dead ends: 6064 [2021-03-11 14:28:56,309 INFO L226 Difference]: Without dead ends: 6038 [2021-03-11 14:28:56,309 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 1017.4ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:28:56,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6038 states. [2021-03-11 14:28:56,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6038 to 3132. [2021-03-11 14:28:56,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3132 states, 3131 states have (on average 4.983072500798467) internal successors, (15602), 3131 states have internal predecessors, (15602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:28:56,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3132 states to 3132 states and 15602 transitions. [2021-03-11 14:28:56,443 INFO L78 Accepts]: Start accepts. Automaton has 3132 states and 15602 transitions. Word has length 31 [2021-03-11 14:28:56,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:28:56,443 INFO L480 AbstractCegarLoop]: Abstraction has 3132 states and 15602 transitions. [2021-03-11 14:28:56,443 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:28:56,443 INFO L276 IsEmpty]: Start isEmpty. Operand 3132 states and 15602 transitions. [2021-03-11 14:28:56,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:28:56,448 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:28:56,448 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:28:56,448 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable750 [2021-03-11 14:28:56,448 INFO L428 AbstractCegarLoop]: === Iteration 752 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:28:56,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:28:56,448 INFO L82 PathProgramCache]: Analyzing trace with hash 828125039, now seen corresponding path program 743 times [2021-03-11 14:28:56,448 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:28:56,448 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1695753732] [2021-03-11 14:28:56,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:28:56,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:28:56,461 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:28:56,462 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:28:56,464 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:28:56,465 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:28:56,484 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:28:56,486 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:28:56,517 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:28:56,519 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:28:56,565 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:28:56,566 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:28:56,625 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:28:56,626 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:28:56,704 INFO L142 QuantifierPusher]: treesize reduction 45, result has 51.1 percent of original size [2021-03-11 14:28:56,706 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-11 14:28:56,798 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:28:56,799 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:28:56,904 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:28:56,906 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:28:57,027 INFO L142 QuantifierPusher]: treesize reduction 72, result has 49.7 percent of original size [2021-03-11 14:28:57,029 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-03-11 14:28:57,170 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:28:57,172 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:28:57,295 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:28:57,296 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1695753732] [2021-03-11 14:28:57,296 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:28:57,296 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:28:57,296 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1896446108] [2021-03-11 14:28:57,296 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:28:57,296 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:28:57,296 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:28:57,296 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:28:57,296 INFO L87 Difference]: Start difference. First operand 3132 states and 15602 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:28:57,835 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 40 [2021-03-11 14:28:57,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:28:57,884 INFO L93 Difference]: Finished difference Result 6073 states and 26926 transitions. [2021-03-11 14:28:57,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:28:57,888 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:28:57,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:28:57,902 INFO L225 Difference]: With dead ends: 6073 [2021-03-11 14:28:57,902 INFO L226 Difference]: Without dead ends: 6051 [2021-03-11 14:28:57,902 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 912.8ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:28:57,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6051 states. [2021-03-11 14:28:58,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6051 to 3141. [2021-03-11 14:28:58,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3141 states, 3140 states have (on average 4.973885350318471) internal successors, (15618), 3140 states have internal predecessors, (15618), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:28:58,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3141 states to 3141 states and 15618 transitions. [2021-03-11 14:28:58,039 INFO L78 Accepts]: Start accepts. Automaton has 3141 states and 15618 transitions. Word has length 31 [2021-03-11 14:28:58,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:28:58,039 INFO L480 AbstractCegarLoop]: Abstraction has 3141 states and 15618 transitions. [2021-03-11 14:28:58,039 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:28:58,039 INFO L276 IsEmpty]: Start isEmpty. Operand 3141 states and 15618 transitions. [2021-03-11 14:28:58,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:28:58,044 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:28:58,044 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:28:58,044 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable751 [2021-03-11 14:28:58,044 INFO L428 AbstractCegarLoop]: === Iteration 753 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:28:58,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:28:58,044 INFO L82 PathProgramCache]: Analyzing trace with hash 405639313, now seen corresponding path program 744 times [2021-03-11 14:28:58,044 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:28:58,044 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1532349575] [2021-03-11 14:28:58,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:28:58,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:28:58,056 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:28:58,058 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:28:58,059 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:28:58,061 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:28:58,080 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:28:58,081 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:28:58,113 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:28:58,115 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:28:58,162 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:28:58,163 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:28:58,223 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:28:58,224 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:28:58,302 INFO L142 QuantifierPusher]: treesize reduction 45, result has 51.1 percent of original size [2021-03-11 14:28:58,303 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-11 14:28:58,395 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:28:58,397 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:28:58,505 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:28:58,506 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:28:58,629 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:28:58,631 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:28:58,768 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:28:58,770 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:28:58,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:28:58,894 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1532349575] [2021-03-11 14:28:58,894 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:28:58,894 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:28:58,894 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1662669236] [2021-03-11 14:28:58,894 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:28:58,894 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:28:58,894 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:28:58,894 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:28:58,895 INFO L87 Difference]: Start difference. First operand 3141 states and 15618 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:28:59,504 WARN L205 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 39 [2021-03-11 14:28:59,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:28:59,564 INFO L93 Difference]: Finished difference Result 6070 states and 26912 transitions. [2021-03-11 14:28:59,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:28:59,569 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:28:59,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:28:59,582 INFO L225 Difference]: With dead ends: 6070 [2021-03-11 14:28:59,582 INFO L226 Difference]: Without dead ends: 6023 [2021-03-11 14:28:59,582 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 1011.3ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:28:59,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6023 states. [2021-03-11 14:28:59,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6023 to 3113. [2021-03-11 14:28:59,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3113 states, 3112 states have (on average 4.999678663239075) internal successors, (15559), 3112 states have internal predecessors, (15559), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:28:59,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3113 states to 3113 states and 15559 transitions. [2021-03-11 14:28:59,716 INFO L78 Accepts]: Start accepts. Automaton has 3113 states and 15559 transitions. Word has length 31 [2021-03-11 14:28:59,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:28:59,716 INFO L480 AbstractCegarLoop]: Abstraction has 3113 states and 15559 transitions. [2021-03-11 14:28:59,716 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:28:59,716 INFO L276 IsEmpty]: Start isEmpty. Operand 3113 states and 15559 transitions. [2021-03-11 14:28:59,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:28:59,721 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:28:59,721 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:28:59,721 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable752 [2021-03-11 14:28:59,721 INFO L428 AbstractCegarLoop]: === Iteration 754 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:28:59,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:28:59,721 INFO L82 PathProgramCache]: Analyzing trace with hash 1837446289, now seen corresponding path program 745 times [2021-03-11 14:28:59,721 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:28:59,721 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1026430656] [2021-03-11 14:28:59,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:28:59,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:28:59,733 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:28:59,735 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:28:59,736 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:28:59,737 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:28:59,757 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:28:59,758 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:28:59,791 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:28:59,793 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:28:59,840 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:28:59,841 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:28:59,901 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:28:59,902 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:28:59,981 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:28:59,982 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:29:00,077 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:29:00,079 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:29:00,188 INFO L142 QuantifierPusher]: treesize reduction 45, result has 59.1 percent of original size [2021-03-11 14:29:00,190 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:29:00,385 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 31 [2021-03-11 14:29:00,389 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:29:00,390 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:29:00,542 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:29:00,544 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:29:00,672 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:29:00,673 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1026430656] [2021-03-11 14:29:00,673 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:29:00,673 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:29:00,673 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [443456196] [2021-03-11 14:29:00,673 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:29:00,673 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:29:00,673 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:29:00,673 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:29:00,673 INFO L87 Difference]: Start difference. First operand 3113 states and 15559 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:29:01,221 WARN L205 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 40 [2021-03-11 14:29:01,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:29:01,265 INFO L93 Difference]: Finished difference Result 6038 states and 26868 transitions. [2021-03-11 14:29:01,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:29:01,270 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:29:01,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:29:01,283 INFO L225 Difference]: With dead ends: 6038 [2021-03-11 14:29:01,283 INFO L226 Difference]: Without dead ends: 6018 [2021-03-11 14:29:01,284 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 1125.6ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:29:01,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6018 states. [2021-03-11 14:29:01,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6018 to 3133. [2021-03-11 14:29:01,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3133 states, 3132 states have (on average 4.9901021711366536) internal successors, (15629), 3132 states have internal predecessors, (15629), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:29:01,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3133 states to 3133 states and 15629 transitions. [2021-03-11 14:29:01,420 INFO L78 Accepts]: Start accepts. Automaton has 3133 states and 15629 transitions. Word has length 31 [2021-03-11 14:29:01,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:29:01,420 INFO L480 AbstractCegarLoop]: Abstraction has 3133 states and 15629 transitions. [2021-03-11 14:29:01,420 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:29:01,420 INFO L276 IsEmpty]: Start isEmpty. Operand 3133 states and 15629 transitions. [2021-03-11 14:29:01,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:29:01,425 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:29:01,425 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:29:01,425 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable753 [2021-03-11 14:29:01,425 INFO L428 AbstractCegarLoop]: === Iteration 755 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:29:01,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:29:01,425 INFO L82 PathProgramCache]: Analyzing trace with hash 992474837, now seen corresponding path program 746 times [2021-03-11 14:29:01,425 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:29:01,425 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1224265607] [2021-03-11 14:29:01,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:29:01,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:29:01,437 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:29:01,439 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:29:01,440 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:29:01,442 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:29:01,461 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:29:01,463 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:29:01,495 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:29:01,497 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:29:01,543 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:29:01,545 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:29:01,606 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:29:01,607 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:29:01,686 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:29:01,688 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:29:01,782 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:29:01,784 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:29:01,893 INFO L142 QuantifierPusher]: treesize reduction 45, result has 59.1 percent of original size [2021-03-11 14:29:01,895 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:29:02,092 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 31 [2021-03-11 14:29:02,095 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:29:02,097 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:29:02,244 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:29:02,245 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:29:02,372 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:29:02,372 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1224265607] [2021-03-11 14:29:02,372 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:29:02,372 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:29:02,372 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1851193417] [2021-03-11 14:29:02,372 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:29:02,372 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:29:02,372 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:29:02,372 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:29:02,372 INFO L87 Difference]: Start difference. First operand 3133 states and 15629 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:29:02,907 WARN L205 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 37 [2021-03-11 14:29:02,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:29:02,969 INFO L93 Difference]: Finished difference Result 6035 states and 26856 transitions. [2021-03-11 14:29:02,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:29:02,974 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:29:02,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:29:02,987 INFO L225 Difference]: With dead ends: 6035 [2021-03-11 14:29:02,987 INFO L226 Difference]: Without dead ends: 6012 [2021-03-11 14:29:02,987 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 1097.6ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:29:03,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6012 states. [2021-03-11 14:29:03,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6012 to 3127. [2021-03-11 14:29:03,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3127 states, 3126 states have (on average 4.994241842610364) internal successors, (15612), 3126 states have internal predecessors, (15612), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:29:03,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3127 states to 3127 states and 15612 transitions. [2021-03-11 14:29:03,121 INFO L78 Accepts]: Start accepts. Automaton has 3127 states and 15612 transitions. Word has length 31 [2021-03-11 14:29:03,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:29:03,121 INFO L480 AbstractCegarLoop]: Abstraction has 3127 states and 15612 transitions. [2021-03-11 14:29:03,121 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:29:03,121 INFO L276 IsEmpty]: Start isEmpty. Operand 3127 states and 15612 transitions. [2021-03-11 14:29:03,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:29:03,126 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:29:03,126 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:29:03,126 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable754 [2021-03-11 14:29:03,126 INFO L428 AbstractCegarLoop]: === Iteration 756 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:29:03,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:29:03,126 INFO L82 PathProgramCache]: Analyzing trace with hash 1413135053, now seen corresponding path program 747 times [2021-03-11 14:29:03,126 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:29:03,126 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [803769454] [2021-03-11 14:29:03,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:29:03,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:29:03,138 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:29:03,140 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:29:03,141 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:29:03,142 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:29:03,162 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:29:03,163 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:29:03,195 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:29:03,197 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:29:03,243 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:29:03,245 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:29:03,304 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:29:03,305 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:29:03,383 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:29:03,384 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:29:03,476 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:29:03,478 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:29:03,583 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:29:03,585 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:29:03,707 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:29:03,709 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:29:03,852 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:29:03,853 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:29:03,980 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:29:03,980 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [803769454] [2021-03-11 14:29:03,980 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:29:03,980 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:29:03,980 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [52326385] [2021-03-11 14:29:03,980 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:29:03,980 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:29:03,981 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:29:03,981 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:29:03,981 INFO L87 Difference]: Start difference. First operand 3127 states and 15612 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:29:04,604 WARN L205 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 40 [2021-03-11 14:29:04,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:29:04,646 INFO L93 Difference]: Finished difference Result 6040 states and 26867 transitions. [2021-03-11 14:29:04,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:29:04,651 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:29:04,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:29:04,663 INFO L225 Difference]: With dead ends: 6040 [2021-03-11 14:29:04,664 INFO L226 Difference]: Without dead ends: 6020 [2021-03-11 14:29:04,664 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 1020.8ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:29:04,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6020 states. [2021-03-11 14:29:04,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6020 to 3134. [2021-03-11 14:29:04,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3134 states, 3133 states have (on average 4.98723268432812) internal successors, (15625), 3133 states have internal predecessors, (15625), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:29:04,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3134 states to 3134 states and 15625 transitions. [2021-03-11 14:29:04,797 INFO L78 Accepts]: Start accepts. Automaton has 3134 states and 15625 transitions. Word has length 31 [2021-03-11 14:29:04,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:29:04,797 INFO L480 AbstractCegarLoop]: Abstraction has 3134 states and 15625 transitions. [2021-03-11 14:29:04,797 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:29:04,797 INFO L276 IsEmpty]: Start isEmpty. Operand 3134 states and 15625 transitions. [2021-03-11 14:29:04,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:29:04,801 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:29:04,801 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:29:04,802 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable755 [2021-03-11 14:29:04,802 INFO L428 AbstractCegarLoop]: === Iteration 757 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:29:04,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:29:04,802 INFO L82 PathProgramCache]: Analyzing trace with hash -276807851, now seen corresponding path program 748 times [2021-03-11 14:29:04,802 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:29:04,802 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1299746249] [2021-03-11 14:29:04,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:29:04,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:29:04,814 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:29:04,815 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:29:04,817 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:29:04,818 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:29:04,837 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:29:04,839 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:29:04,871 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:29:04,872 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:29:04,919 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:29:04,921 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:29:04,980 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:29:04,982 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:29:05,060 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:29:05,061 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:29:05,153 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:29:05,155 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:29:05,264 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:29:05,265 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:29:05,387 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:29:05,388 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:29:05,531 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:29:05,532 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:29:05,657 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:29:05,657 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1299746249] [2021-03-11 14:29:05,657 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:29:05,657 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:29:05,657 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1976710610] [2021-03-11 14:29:05,657 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:29:05,657 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:29:05,657 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:29:05,657 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:29:05,657 INFO L87 Difference]: Start difference. First operand 3134 states and 15625 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:29:06,212 WARN L205 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 38 [2021-03-11 14:29:06,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:29:06,266 INFO L93 Difference]: Finished difference Result 6038 states and 26856 transitions. [2021-03-11 14:29:06,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:29:06,270 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:29:06,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:29:06,283 INFO L225 Difference]: With dead ends: 6038 [2021-03-11 14:29:06,283 INFO L226 Difference]: Without dead ends: 6013 [2021-03-11 14:29:06,283 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 1008.4ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:29:06,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6013 states. [2021-03-11 14:29:06,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6013 to 3127. [2021-03-11 14:29:06,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3127 states, 3126 states have (on average 4.992322456813819) internal successors, (15606), 3126 states have internal predecessors, (15606), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:29:06,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3127 states to 3127 states and 15606 transitions. [2021-03-11 14:29:06,418 INFO L78 Accepts]: Start accepts. Automaton has 3127 states and 15606 transitions. Word has length 31 [2021-03-11 14:29:06,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:29:06,418 INFO L480 AbstractCegarLoop]: Abstraction has 3127 states and 15606 transitions. [2021-03-11 14:29:06,418 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:29:06,418 INFO L276 IsEmpty]: Start isEmpty. Operand 3127 states and 15606 transitions. [2021-03-11 14:29:06,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:29:06,423 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:29:06,423 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:29:06,423 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable756 [2021-03-11 14:29:06,423 INFO L428 AbstractCegarLoop]: === Iteration 758 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:29:06,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:29:06,423 INFO L82 PathProgramCache]: Analyzing trace with hash 143852365, now seen corresponding path program 749 times [2021-03-11 14:29:06,423 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:29:06,423 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [53891159] [2021-03-11 14:29:06,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:29:06,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:29:06,445 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:29:06,447 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:29:06,449 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:29:06,450 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:29:06,474 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:29:06,475 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:29:06,514 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:29:06,516 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:29:06,567 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:29:06,568 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:29:06,629 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:29:06,630 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:29:06,709 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:29:06,711 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:29:06,803 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:29:06,805 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:29:06,910 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:29:06,912 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:29:07,038 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:29:07,039 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:29:07,180 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:29:07,181 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:29:07,306 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:29:07,306 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [53891159] [2021-03-11 14:29:07,307 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:29:07,307 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:29:07,307 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [355639131] [2021-03-11 14:29:07,307 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:29:07,307 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:29:07,307 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:29:07,307 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:29:07,307 INFO L87 Difference]: Start difference. First operand 3127 states and 15606 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:29:07,830 WARN L205 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 37 [2021-03-11 14:29:07,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:29:07,877 INFO L93 Difference]: Finished difference Result 6033 states and 26846 transitions. [2021-03-11 14:29:07,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:29:07,881 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:29:07,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:29:07,895 INFO L225 Difference]: With dead ends: 6033 [2021-03-11 14:29:07,895 INFO L226 Difference]: Without dead ends: 6016 [2021-03-11 14:29:07,895 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 1022.2ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:29:07,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6016 states. [2021-03-11 14:29:08,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6016 to 3133. [2021-03-11 14:29:08,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3133 states, 3132 states have (on average 4.986270753512133) internal successors, (15617), 3132 states have internal predecessors, (15617), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:29:08,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3133 states to 3133 states and 15617 transitions. [2021-03-11 14:29:08,030 INFO L78 Accepts]: Start accepts. Automaton has 3133 states and 15617 transitions. Word has length 31 [2021-03-11 14:29:08,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:29:08,030 INFO L480 AbstractCegarLoop]: Abstraction has 3133 states and 15617 transitions. [2021-03-11 14:29:08,030 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:29:08,030 INFO L276 IsEmpty]: Start isEmpty. Operand 3133 states and 15617 transitions. [2021-03-11 14:29:08,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:29:08,035 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:29:08,035 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:29:08,035 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable757 [2021-03-11 14:29:08,035 INFO L428 AbstractCegarLoop]: === Iteration 759 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:29:08,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:29:08,035 INFO L82 PathProgramCache]: Analyzing trace with hash -701119087, now seen corresponding path program 750 times [2021-03-11 14:29:08,035 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:29:08,035 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1707037134] [2021-03-11 14:29:08,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:29:08,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:29:08,047 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:29:08,049 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:29:08,050 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:29:08,052 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:29:08,071 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:29:08,073 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:29:08,105 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:29:08,106 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:29:08,153 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:29:08,155 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:29:08,215 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:29:08,216 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:29:08,296 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:29:08,298 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:29:08,389 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:29:08,391 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:29:08,496 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:29:08,498 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:29:08,620 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:29:08,622 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:29:08,765 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:29:08,766 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:29:08,891 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:29:08,892 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1707037134] [2021-03-11 14:29:08,892 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:29:08,892 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:29:08,892 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [145148377] [2021-03-11 14:29:08,892 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:29:08,892 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:29:08,892 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:29:08,892 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:29:08,892 INFO L87 Difference]: Start difference. First operand 3133 states and 15617 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:29:09,628 WARN L205 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 38 [2021-03-11 14:29:09,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:29:09,689 INFO L93 Difference]: Finished difference Result 6034 states and 26842 transitions. [2021-03-11 14:29:09,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:29:09,694 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:29:09,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:29:09,707 INFO L225 Difference]: With dead ends: 6034 [2021-03-11 14:29:09,707 INFO L226 Difference]: Without dead ends: 6004 [2021-03-11 14:29:09,707 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 1009.6ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:29:09,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6004 states. [2021-03-11 14:29:09,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6004 to 3121. [2021-03-11 14:29:09,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3121 states, 3120 states have (on average 4.996474358974359) internal successors, (15589), 3120 states have internal predecessors, (15589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:29:09,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3121 states to 3121 states and 15589 transitions. [2021-03-11 14:29:09,844 INFO L78 Accepts]: Start accepts. Automaton has 3121 states and 15589 transitions. Word has length 31 [2021-03-11 14:29:09,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:29:09,844 INFO L480 AbstractCegarLoop]: Abstraction has 3121 states and 15589 transitions. [2021-03-11 14:29:09,844 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:29:09,844 INFO L276 IsEmpty]: Start isEmpty. Operand 3121 states and 15589 transitions. [2021-03-11 14:29:09,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:29:09,849 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:29:09,849 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:29:09,849 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable758 [2021-03-11 14:29:09,849 INFO L428 AbstractCegarLoop]: === Iteration 760 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:29:09,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:29:09,849 INFO L82 PathProgramCache]: Analyzing trace with hash -713157001, now seen corresponding path program 751 times [2021-03-11 14:29:09,849 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:29:09,849 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1837451406] [2021-03-11 14:29:09,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:29:09,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:29:09,862 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:29:09,863 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:29:09,865 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:29:09,866 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:29:09,886 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:29:09,887 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:29:09,920 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:29:09,922 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:29:09,970 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:29:09,971 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:29:10,034 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:29:10,035 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:29:10,115 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:29:10,116 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:29:10,210 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:29:10,211 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:29:10,386 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 28 [2021-03-11 14:29:10,390 INFO L142 QuantifierPusher]: treesize reduction 45, result has 59.1 percent of original size [2021-03-11 14:29:10,391 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:29:10,587 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 31 [2021-03-11 14:29:10,591 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:29:10,592 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:29:10,739 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:29:10,740 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:29:10,867 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:29:10,868 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1837451406] [2021-03-11 14:29:10,868 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:29:10,868 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:29:10,868 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1897326520] [2021-03-11 14:29:10,868 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:29:10,868 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:29:10,868 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:29:10,868 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:29:10,868 INFO L87 Difference]: Start difference. First operand 3121 states and 15589 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:29:11,548 WARN L205 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 40 [2021-03-11 14:29:11,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:29:11,593 INFO L93 Difference]: Finished difference Result 6049 states and 26885 transitions. [2021-03-11 14:29:11,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:29:11,597 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:29:11,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:29:11,610 INFO L225 Difference]: With dead ends: 6049 [2021-03-11 14:29:11,611 INFO L226 Difference]: Without dead ends: 6029 [2021-03-11 14:29:11,611 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 1188.9ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:29:11,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6029 states. [2021-03-11 14:29:11,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6029 to 3135. [2021-03-11 14:29:11,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3135 states, 3134 states have (on average 4.986598596043395) internal successors, (15628), 3134 states have internal predecessors, (15628), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:29:11,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3135 states to 3135 states and 15628 transitions. [2021-03-11 14:29:11,747 INFO L78 Accepts]: Start accepts. Automaton has 3135 states and 15628 transitions. Word has length 31 [2021-03-11 14:29:11,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:29:11,747 INFO L480 AbstractCegarLoop]: Abstraction has 3135 states and 15628 transitions. [2021-03-11 14:29:11,747 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:29:11,747 INFO L276 IsEmpty]: Start isEmpty. Operand 3135 states and 15628 transitions. [2021-03-11 14:29:11,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:29:11,752 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:29:11,752 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:29:11,752 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable759 [2021-03-11 14:29:11,752 INFO L428 AbstractCegarLoop]: === Iteration 761 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:29:11,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:29:11,752 INFO L82 PathProgramCache]: Analyzing trace with hash -1558128453, now seen corresponding path program 752 times [2021-03-11 14:29:11,752 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:29:11,752 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1290724136] [2021-03-11 14:29:11,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:29:11,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:29:11,765 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:29:11,767 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:29:11,768 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:29:11,770 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:29:11,791 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:29:11,792 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:29:11,827 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:29:11,829 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:29:11,880 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:29:11,881 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:29:11,944 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:29:11,946 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:29:12,027 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:29:12,028 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:29:12,125 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:29:12,126 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:29:12,303 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 28 [2021-03-11 14:29:12,306 INFO L142 QuantifierPusher]: treesize reduction 45, result has 59.1 percent of original size [2021-03-11 14:29:12,308 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:29:12,509 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 31 [2021-03-11 14:29:12,513 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:29:12,514 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:29:12,658 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:29:12,660 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:29:12,793 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:29:12,794 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1290724136] [2021-03-11 14:29:12,794 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:29:12,794 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:29:12,794 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1570449872] [2021-03-11 14:29:12,794 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:29:12,794 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:29:12,794 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:29:12,794 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:29:12,794 INFO L87 Difference]: Start difference. First operand 3135 states and 15628 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:29:13,473 WARN L205 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 37 [2021-03-11 14:29:13,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:29:13,527 INFO L93 Difference]: Finished difference Result 6046 states and 26873 transitions. [2021-03-11 14:29:13,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:29:13,532 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:29:13,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:29:13,545 INFO L225 Difference]: With dead ends: 6046 [2021-03-11 14:29:13,546 INFO L226 Difference]: Without dead ends: 6023 [2021-03-11 14:29:13,546 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 1198.4ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:29:13,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6023 states. [2021-03-11 14:29:13,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6023 to 3129. [2021-03-11 14:29:13,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3129 states, 3128 states have (on average 4.990728900255754) internal successors, (15611), 3128 states have internal predecessors, (15611), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:29:13,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3129 states to 3129 states and 15611 transitions. [2021-03-11 14:29:13,682 INFO L78 Accepts]: Start accepts. Automaton has 3129 states and 15611 transitions. Word has length 31 [2021-03-11 14:29:13,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:29:13,682 INFO L480 AbstractCegarLoop]: Abstraction has 3129 states and 15611 transitions. [2021-03-11 14:29:13,682 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:29:13,682 INFO L276 IsEmpty]: Start isEmpty. Operand 3129 states and 15611 transitions. [2021-03-11 14:29:13,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:29:13,687 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:29:13,687 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:29:13,687 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable760 [2021-03-11 14:29:13,687 INFO L428 AbstractCegarLoop]: === Iteration 762 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:29:13,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:29:13,687 INFO L82 PathProgramCache]: Analyzing trace with hash -1773935091, now seen corresponding path program 753 times [2021-03-11 14:29:13,687 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:29:13,687 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1141106473] [2021-03-11 14:29:13,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:29:13,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:29:13,700 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:29:13,701 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:29:13,703 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:29:13,704 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:29:13,724 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:29:13,725 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:29:13,759 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:29:13,760 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:29:13,810 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:29:13,811 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:29:13,871 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:29:13,873 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:29:13,953 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:29:13,954 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:29:14,046 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:29:14,048 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:29:14,218 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 28 [2021-03-11 14:29:14,222 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:29:14,223 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:29:14,351 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:29:14,353 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:29:14,495 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:29:14,497 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:29:14,627 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:29:14,627 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1141106473] [2021-03-11 14:29:14,627 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:29:14,627 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:29:14,627 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1028778266] [2021-03-11 14:29:14,627 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:29:14,627 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:29:14,627 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:29:14,627 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:29:14,627 INFO L87 Difference]: Start difference. First operand 3129 states and 15611 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:29:15,203 WARN L205 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 40 [2021-03-11 14:29:15,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:29:15,247 INFO L93 Difference]: Finished difference Result 6059 states and 26900 transitions. [2021-03-11 14:29:15,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:29:15,251 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:29:15,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:29:15,264 INFO L225 Difference]: With dead ends: 6059 [2021-03-11 14:29:15,264 INFO L226 Difference]: Without dead ends: 6039 [2021-03-11 14:29:15,264 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 1110.4ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:29:15,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6039 states. [2021-03-11 14:29:15,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6039 to 3140. [2021-03-11 14:29:15,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3140 states, 3139 states have (on average 4.979611341191462) internal successors, (15631), 3139 states have internal predecessors, (15631), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:29:15,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3140 states to 3140 states and 15631 transitions. [2021-03-11 14:29:15,399 INFO L78 Accepts]: Start accepts. Automaton has 3140 states and 15631 transitions. Word has length 31 [2021-03-11 14:29:15,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:29:15,399 INFO L480 AbstractCegarLoop]: Abstraction has 3140 states and 15631 transitions. [2021-03-11 14:29:15,399 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:29:15,399 INFO L276 IsEmpty]: Start isEmpty. Operand 3140 states and 15631 transitions. [2021-03-11 14:29:15,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:29:15,404 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:29:15,404 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:29:15,404 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable761 [2021-03-11 14:29:15,404 INFO L428 AbstractCegarLoop]: === Iteration 763 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:29:15,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:29:15,404 INFO L82 PathProgramCache]: Analyzing trace with hash -436367877, now seen corresponding path program 754 times [2021-03-11 14:29:15,404 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:29:15,404 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [59304204] [2021-03-11 14:29:15,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:29:15,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:29:15,417 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:29:15,418 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:29:15,420 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:29:15,421 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:29:15,441 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:29:15,443 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:29:15,477 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:29:15,478 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:29:15,530 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:29:15,532 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:29:15,592 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:29:15,594 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:29:15,673 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:29:15,674 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:29:15,768 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:29:15,769 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:29:15,943 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 28 [2021-03-11 14:29:15,947 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:29:15,948 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:29:16,085 INFO L142 QuantifierPusher]: treesize reduction 72, result has 49.7 percent of original size [2021-03-11 14:29:16,087 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-03-11 14:29:16,268 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 36 [2021-03-11 14:29:16,272 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:29:16,274 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:29:16,401 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:29:16,401 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [59304204] [2021-03-11 14:29:16,401 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:29:16,401 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:29:16,401 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963901622] [2021-03-11 14:29:16,401 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:29:16,401 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:29:16,401 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:29:16,401 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:29:16,401 INFO L87 Difference]: Start difference. First operand 3140 states and 15631 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:29:16,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:29:16,910 INFO L93 Difference]: Finished difference Result 6061 states and 26894 transitions. [2021-03-11 14:29:16,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:29:16,914 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:29:16,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:29:16,927 INFO L225 Difference]: With dead ends: 6061 [2021-03-11 14:29:16,927 INFO L226 Difference]: Without dead ends: 6028 [2021-03-11 14:29:16,927 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 1054.9ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:29:17,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6028 states. [2021-03-11 14:29:17,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6028 to 3129. [2021-03-11 14:29:17,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3129 states, 3128 states have (on average 4.9881713554987215) internal successors, (15603), 3128 states have internal predecessors, (15603), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:29:17,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3129 states to 3129 states and 15603 transitions. [2021-03-11 14:29:17,061 INFO L78 Accepts]: Start accepts. Automaton has 3129 states and 15603 transitions. Word has length 31 [2021-03-11 14:29:17,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:29:17,061 INFO L480 AbstractCegarLoop]: Abstraction has 3129 states and 15603 transitions. [2021-03-11 14:29:17,061 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:29:17,061 INFO L276 IsEmpty]: Start isEmpty. Operand 3129 states and 15603 transitions. [2021-03-11 14:29:17,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:29:17,066 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:29:17,066 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:29:17,066 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable762 [2021-03-11 14:29:17,066 INFO L428 AbstractCegarLoop]: === Iteration 764 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:29:17,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:29:17,066 INFO L82 PathProgramCache]: Analyzing trace with hash 1251749517, now seen corresponding path program 755 times [2021-03-11 14:29:17,066 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:29:17,066 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1639750868] [2021-03-11 14:29:17,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:29:17,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:29:17,078 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:29:17,080 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:29:17,081 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:29:17,083 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:29:17,103 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:29:17,104 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:29:17,137 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:29:17,138 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:29:17,190 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:29:17,191 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:29:17,254 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:29:17,256 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:29:17,342 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:29:17,343 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:29:17,436 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:29:17,437 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:29:17,608 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 28 [2021-03-11 14:29:17,611 INFO L142 QuantifierPusher]: treesize reduction 54, result has 55.4 percent of original size [2021-03-11 14:29:17,613 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-03-11 14:29:17,813 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 32 [2021-03-11 14:29:17,816 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:29:17,818 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:29:17,956 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:29:17,958 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:29:18,085 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:29:18,085 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1639750868] [2021-03-11 14:29:18,085 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:29:18,085 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:29:18,086 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [562464256] [2021-03-11 14:29:18,086 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:29:18,086 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:29:18,086 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:29:18,086 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:29:18,086 INFO L87 Difference]: Start difference. First operand 3129 states and 15603 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:29:18,627 WARN L205 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 37 [2021-03-11 14:29:18,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:29:18,672 INFO L93 Difference]: Finished difference Result 6049 states and 26870 transitions. [2021-03-11 14:29:18,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:29:18,677 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:29:18,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:29:18,690 INFO L225 Difference]: With dead ends: 6049 [2021-03-11 14:29:18,690 INFO L226 Difference]: Without dead ends: 6032 [2021-03-11 14:29:18,690 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 1168.7ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:29:18,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6032 states. [2021-03-11 14:29:18,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6032 to 3136. [2021-03-11 14:29:18,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3136 states, 3135 states have (on average 4.981180223285486) internal successors, (15616), 3135 states have internal predecessors, (15616), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:29:18,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3136 states to 3136 states and 15616 transitions. [2021-03-11 14:29:18,826 INFO L78 Accepts]: Start accepts. Automaton has 3136 states and 15616 transitions. Word has length 31 [2021-03-11 14:29:18,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:29:18,826 INFO L480 AbstractCegarLoop]: Abstraction has 3136 states and 15616 transitions. [2021-03-11 14:29:18,826 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:29:18,826 INFO L276 IsEmpty]: Start isEmpty. Operand 3136 states and 15616 transitions. [2021-03-11 14:29:18,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:29:18,831 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:29:18,831 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:29:18,831 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable763 [2021-03-11 14:29:18,831 INFO L428 AbstractCegarLoop]: === Iteration 765 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:29:18,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:29:18,831 INFO L82 PathProgramCache]: Analyzing trace with hash -860679113, now seen corresponding path program 756 times [2021-03-11 14:29:18,831 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:29:18,831 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1343381487] [2021-03-11 14:29:18,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:29:18,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:29:18,844 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:29:18,845 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:29:18,846 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:29:18,848 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:29:18,868 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:29:18,869 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:29:18,902 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:29:18,903 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:29:18,950 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:29:18,951 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:29:19,011 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:29:19,012 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:29:19,092 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:29:19,093 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:29:19,185 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:29:19,186 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:29:19,356 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 28 [2021-03-11 14:29:19,359 INFO L142 QuantifierPusher]: treesize reduction 54, result has 55.4 percent of original size [2021-03-11 14:29:19,361 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-03-11 14:29:19,561 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 32 [2021-03-11 14:29:19,565 INFO L142 QuantifierPusher]: treesize reduction 72, result has 49.7 percent of original size [2021-03-11 14:29:19,566 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-03-11 14:29:19,714 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:29:19,716 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:29:19,842 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:29:19,842 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1343381487] [2021-03-11 14:29:19,842 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:29:19,843 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:29:19,843 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1833505823] [2021-03-11 14:29:19,843 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:29:19,843 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:29:19,843 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:29:19,843 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:29:19,843 INFO L87 Difference]: Start difference. First operand 3136 states and 15616 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:29:20,306 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 40 [2021-03-11 14:29:20,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:29:20,369 INFO L93 Difference]: Finished difference Result 6054 states and 26873 transitions. [2021-03-11 14:29:20,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:29:20,373 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:29:20,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:29:20,386 INFO L225 Difference]: With dead ends: 6054 [2021-03-11 14:29:20,386 INFO L226 Difference]: Without dead ends: 6017 [2021-03-11 14:29:20,387 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 1074.4ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:29:20,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6017 states. [2021-03-11 14:29:20,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6017 to 3121. [2021-03-11 14:29:20,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3121 states, 3120 states have (on average 4.993910256410256) internal successors, (15581), 3120 states have internal predecessors, (15581), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:29:20,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3121 states to 3121 states and 15581 transitions. [2021-03-11 14:29:20,522 INFO L78 Accepts]: Start accepts. Automaton has 3121 states and 15581 transitions. Word has length 31 [2021-03-11 14:29:20,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:29:20,522 INFO L480 AbstractCegarLoop]: Abstraction has 3121 states and 15581 transitions. [2021-03-11 14:29:20,522 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:29:20,523 INFO L276 IsEmpty]: Start isEmpty. Operand 3121 states and 15581 transitions. [2021-03-11 14:29:20,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:29:20,527 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:29:20,527 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:29:20,527 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable764 [2021-03-11 14:29:20,528 INFO L428 AbstractCegarLoop]: === Iteration 766 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:29:20,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:29:20,528 INFO L82 PathProgramCache]: Analyzing trace with hash -1406214665, now seen corresponding path program 757 times [2021-03-11 14:29:20,528 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:29:20,528 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [801365568] [2021-03-11 14:29:20,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:29:20,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:29:20,540 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:29:20,542 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:29:20,543 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:29:20,545 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:29:20,565 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:29:20,566 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:29:20,599 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:29:20,601 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:29:20,649 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:29:20,650 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:29:20,712 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:29:20,714 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:29:20,793 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:29:20,795 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:29:20,890 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:29:20,891 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:29:21,001 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:29:21,003 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:29:21,129 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:29:21,131 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:29:21,276 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:29:21,278 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:29:21,405 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:29:21,405 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [801365568] [2021-03-11 14:29:21,405 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:29:21,405 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:29:21,405 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1235154988] [2021-03-11 14:29:21,405 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:29:21,405 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:29:21,405 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:29:21,405 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:29:21,406 INFO L87 Difference]: Start difference. First operand 3121 states and 15581 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:29:22,202 WARN L205 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 40 [2021-03-11 14:29:22,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:29:22,246 INFO L93 Difference]: Finished difference Result 6055 states and 26894 transitions. [2021-03-11 14:29:22,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:29:22,250 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:29:22,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:29:22,263 INFO L225 Difference]: With dead ends: 6055 [2021-03-11 14:29:22,263 INFO L226 Difference]: Without dead ends: 6035 [2021-03-11 14:29:22,263 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 1048.6ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:29:22,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6035 states. [2021-03-11 14:29:22,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6035 to 3137. [2021-03-11 14:29:22,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3137 states, 3136 states have (on average 4.982780612244898) internal successors, (15626), 3136 states have internal predecessors, (15626), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:29:22,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3137 states to 3137 states and 15626 transitions. [2021-03-11 14:29:22,399 INFO L78 Accepts]: Start accepts. Automaton has 3137 states and 15626 transitions. Word has length 31 [2021-03-11 14:29:22,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:29:22,399 INFO L480 AbstractCegarLoop]: Abstraction has 3137 states and 15626 transitions. [2021-03-11 14:29:22,399 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:29:22,399 INFO L276 IsEmpty]: Start isEmpty. Operand 3137 states and 15626 transitions. [2021-03-11 14:29:22,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:29:22,404 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:29:22,404 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:29:22,404 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable765 [2021-03-11 14:29:22,404 INFO L428 AbstractCegarLoop]: === Iteration 767 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:29:22,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:29:22,404 INFO L82 PathProgramCache]: Analyzing trace with hash 1198809727, now seen corresponding path program 758 times [2021-03-11 14:29:22,404 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:29:22,404 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1781293243] [2021-03-11 14:29:22,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:29:22,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:29:22,426 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:29:22,427 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:29:22,429 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:29:22,431 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:29:22,453 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:29:22,454 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:29:22,487 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:29:22,489 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:29:22,537 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:29:22,538 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:29:22,599 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:29:22,601 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:29:22,680 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:29:22,681 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:29:22,775 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:29:22,776 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:29:22,885 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:29:22,887 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:29:23,009 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:29:23,011 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:29:23,154 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:29:23,156 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:29:23,285 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:29:23,286 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1781293243] [2021-03-11 14:29:23,286 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:29:23,286 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:29:23,286 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1851918681] [2021-03-11 14:29:23,286 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:29:23,286 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:29:23,286 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:29:23,286 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:29:23,286 INFO L87 Difference]: Start difference. First operand 3137 states and 15626 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:29:23,875 WARN L205 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 38 [2021-03-11 14:29:23,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:29:23,928 INFO L93 Difference]: Finished difference Result 6053 states and 26883 transitions. [2021-03-11 14:29:23,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:29:23,933 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:29:23,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:29:23,945 INFO L225 Difference]: With dead ends: 6053 [2021-03-11 14:29:23,946 INFO L226 Difference]: Without dead ends: 6028 [2021-03-11 14:29:23,946 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 1024.9ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:29:24,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6028 states. [2021-03-11 14:29:24,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6028 to 3130. [2021-03-11 14:29:24,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3130 states, 3129 states have (on average 4.987535953978907) internal successors, (15606), 3129 states have internal predecessors, (15606), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:29:24,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3130 states to 3130 states and 15606 transitions. [2021-03-11 14:29:24,080 INFO L78 Accepts]: Start accepts. Automaton has 3130 states and 15606 transitions. Word has length 31 [2021-03-11 14:29:24,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:29:24,081 INFO L480 AbstractCegarLoop]: Abstraction has 3130 states and 15606 transitions. [2021-03-11 14:29:24,081 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:29:24,081 INFO L276 IsEmpty]: Start isEmpty. Operand 3130 states and 15606 transitions. [2021-03-11 14:29:24,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:29:24,085 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:29:24,085 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:29:24,085 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable766 [2021-03-11 14:29:24,086 INFO L428 AbstractCegarLoop]: === Iteration 768 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:29:24,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:29:24,086 INFO L82 PathProgramCache]: Analyzing trace with hash -2042681519, now seen corresponding path program 759 times [2021-03-11 14:29:24,086 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:29:24,086 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [62131600] [2021-03-11 14:29:24,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:29:24,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:29:24,103 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:29:24,104 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:29:24,106 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:29:24,107 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:29:24,127 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:29:24,128 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:29:24,161 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:29:24,163 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:29:24,210 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:29:24,211 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:29:24,272 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:29:24,273 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:29:24,352 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:29:24,353 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:29:24,446 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:29:24,448 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:29:24,558 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:29:24,560 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:29:24,689 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:29:24,691 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:29:24,833 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:29:24,835 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:29:24,960 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:29:24,960 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [62131600] [2021-03-11 14:29:24,960 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:29:24,960 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:29:24,960 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [669879423] [2021-03-11 14:29:24,961 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:29:24,961 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:29:24,961 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:29:24,961 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:29:24,961 INFO L87 Difference]: Start difference. First operand 3130 states and 15606 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:29:25,591 WARN L205 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 40 [2021-03-11 14:29:25,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:29:25,636 INFO L93 Difference]: Finished difference Result 6063 states and 26903 transitions. [2021-03-11 14:29:25,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:29:25,640 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:29:25,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:29:25,654 INFO L225 Difference]: With dead ends: 6063 [2021-03-11 14:29:25,654 INFO L226 Difference]: Without dead ends: 6043 [2021-03-11 14:29:25,654 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 1038.0ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:29:25,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6043 states. [2021-03-11 14:29:25,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6043 to 3141. [2021-03-11 14:29:25,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3141 states, 3140 states have (on average 4.976433121019109) internal successors, (15626), 3140 states have internal predecessors, (15626), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:29:25,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3141 states to 3141 states and 15626 transitions. [2021-03-11 14:29:25,791 INFO L78 Accepts]: Start accepts. Automaton has 3141 states and 15626 transitions. Word has length 31 [2021-03-11 14:29:25,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:29:25,791 INFO L480 AbstractCegarLoop]: Abstraction has 3141 states and 15626 transitions. [2021-03-11 14:29:25,791 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:29:25,791 INFO L276 IsEmpty]: Start isEmpty. Operand 3141 states and 15626 transitions. [2021-03-11 14:29:25,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:29:25,795 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:29:25,795 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:29:25,795 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable767 [2021-03-11 14:29:25,796 INFO L428 AbstractCegarLoop]: === Iteration 769 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:29:25,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:29:25,796 INFO L82 PathProgramCache]: Analyzing trace with hash -705114305, now seen corresponding path program 760 times [2021-03-11 14:29:25,796 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:29:25,796 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1270272321] [2021-03-11 14:29:25,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:29:25,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:29:25,809 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:29:25,811 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:29:25,812 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:29:25,814 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:29:25,834 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:29:25,835 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:29:25,868 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:29:25,869 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:29:25,916 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:29:25,918 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:29:25,978 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:29:25,980 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:29:26,059 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:29:26,061 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:29:26,153 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:29:26,155 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:29:26,262 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:29:26,264 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:29:26,392 INFO L142 QuantifierPusher]: treesize reduction 72, result has 49.7 percent of original size [2021-03-11 14:29:26,393 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-03-11 14:29:26,537 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:29:26,538 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:29:26,665 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:29:26,665 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1270272321] [2021-03-11 14:29:26,665 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:29:26,665 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:29:26,665 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1534174403] [2021-03-11 14:29:26,665 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:29:26,665 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:29:26,665 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:29:26,665 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:29:26,666 INFO L87 Difference]: Start difference. First operand 3141 states and 15626 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:29:27,228 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 40 [2021-03-11 14:29:27,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:29:27,285 INFO L93 Difference]: Finished difference Result 6065 states and 26897 transitions. [2021-03-11 14:29:27,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:29:27,289 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:29:27,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:29:27,302 INFO L225 Difference]: With dead ends: 6065 [2021-03-11 14:29:27,302 INFO L226 Difference]: Without dead ends: 6032 [2021-03-11 14:29:27,302 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 928.9ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:29:27,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6032 states. [2021-03-11 14:29:27,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6032 to 3130. [2021-03-11 14:29:27,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3130 states, 3129 states have (on average 4.984659635666347) internal successors, (15597), 3129 states have internal predecessors, (15597), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:29:27,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3130 states to 3130 states and 15597 transitions. [2021-03-11 14:29:27,438 INFO L78 Accepts]: Start accepts. Automaton has 3130 states and 15597 transitions. Word has length 31 [2021-03-11 14:29:27,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:29:27,438 INFO L480 AbstractCegarLoop]: Abstraction has 3130 states and 15597 transitions. [2021-03-11 14:29:27,438 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:29:27,438 INFO L276 IsEmpty]: Start isEmpty. Operand 3130 states and 15597 transitions. [2021-03-11 14:29:27,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:29:27,443 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:29:27,443 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:29:27,443 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable768 [2021-03-11 14:29:27,443 INFO L428 AbstractCegarLoop]: === Iteration 770 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:29:27,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:29:27,443 INFO L82 PathProgramCache]: Analyzing trace with hash -286279599, now seen corresponding path program 761 times [2021-03-11 14:29:27,443 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:29:27,443 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [621014768] [2021-03-11 14:29:27,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:29:27,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:29:27,455 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:29:27,457 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:29:27,458 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:29:27,460 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:29:27,481 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:29:27,482 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:29:27,517 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:29:27,519 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:29:27,567 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:29:27,568 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:29:27,629 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:29:27,630 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:29:27,709 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:29:27,711 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:29:27,805 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:29:27,806 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:29:27,917 INFO L142 QuantifierPusher]: treesize reduction 54, result has 55.4 percent of original size [2021-03-11 14:29:27,919 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-03-11 14:29:28,123 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 32 [2021-03-11 14:29:28,126 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:29:28,128 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:29:28,270 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:29:28,271 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:29:28,401 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:29:28,401 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [621014768] [2021-03-11 14:29:28,401 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:29:28,401 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:29:28,401 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [745241266] [2021-03-11 14:29:28,401 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:29:28,401 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:29:28,401 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:29:28,402 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:29:28,402 INFO L87 Difference]: Start difference. First operand 3130 states and 15597 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:29:28,983 WARN L205 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 38 [2021-03-11 14:29:29,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:29:29,033 INFO L93 Difference]: Finished difference Result 6056 states and 26879 transitions. [2021-03-11 14:29:29,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:29:29,038 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:29:29,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:29:29,051 INFO L225 Difference]: With dead ends: 6056 [2021-03-11 14:29:29,051 INFO L226 Difference]: Without dead ends: 6038 [2021-03-11 14:29:29,051 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 1109.9ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:29:29,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6038 states. [2021-03-11 14:29:29,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6038 to 3138. [2021-03-11 14:29:29,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3138 states, 3137 states have (on average 4.97672935926044) internal successors, (15612), 3137 states have internal predecessors, (15612), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:29:29,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3138 states to 3138 states and 15612 transitions. [2021-03-11 14:29:29,186 INFO L78 Accepts]: Start accepts. Automaton has 3138 states and 15612 transitions. Word has length 31 [2021-03-11 14:29:29,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:29:29,186 INFO L480 AbstractCegarLoop]: Abstraction has 3138 states and 15612 transitions. [2021-03-11 14:29:29,186 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:29:29,186 INFO L276 IsEmpty]: Start isEmpty. Operand 3138 states and 15612 transitions. [2021-03-11 14:29:29,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:29:29,191 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:29:29,191 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:29:29,191 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable769 [2021-03-11 14:29:29,191 INFO L428 AbstractCegarLoop]: === Iteration 771 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:29:29,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:29:29,191 INFO L82 PathProgramCache]: Analyzing trace with hash -1553736777, now seen corresponding path program 762 times [2021-03-11 14:29:29,191 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:29:29,191 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [345385622] [2021-03-11 14:29:29,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:29:29,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:29:29,204 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:29:29,205 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:29:29,207 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:29:29,208 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:29:29,228 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:29:29,230 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:29:29,262 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:29:29,264 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:29:29,311 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:29:29,312 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:29:29,373 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:29:29,375 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:29:29,453 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:29:29,455 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:29:29,548 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:29:29,550 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:29:29,660 INFO L142 QuantifierPusher]: treesize reduction 54, result has 55.4 percent of original size [2021-03-11 14:29:29,662 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-03-11 14:29:29,868 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 32 [2021-03-11 14:29:29,872 INFO L142 QuantifierPusher]: treesize reduction 72, result has 49.7 percent of original size [2021-03-11 14:29:29,874 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-03-11 14:29:30,026 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:29:30,027 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:29:30,163 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:29:30,163 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [345385622] [2021-03-11 14:29:30,163 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:29:30,163 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:29:30,163 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1648769408] [2021-03-11 14:29:30,164 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:29:30,164 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:29:30,164 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:29:30,164 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:29:30,164 INFO L87 Difference]: Start difference. First operand 3138 states and 15612 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:29:30,660 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 40 [2021-03-11 14:29:30,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:29:30,726 INFO L93 Difference]: Finished difference Result 6060 states and 26879 transitions. [2021-03-11 14:29:30,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:29:30,731 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:29:30,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:29:30,744 INFO L225 Difference]: With dead ends: 6060 [2021-03-11 14:29:30,744 INFO L226 Difference]: Without dead ends: 6021 [2021-03-11 14:29:30,744 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 1036.4ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:29:30,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6021 states. [2021-03-11 14:29:30,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6021 to 3121. [2021-03-11 14:29:30,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3121 states, 3120 states have (on average 4.991346153846154) internal successors, (15573), 3120 states have internal predecessors, (15573), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:29:30,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3121 states to 3121 states and 15573 transitions. [2021-03-11 14:29:30,882 INFO L78 Accepts]: Start accepts. Automaton has 3121 states and 15573 transitions. Word has length 31 [2021-03-11 14:29:30,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:29:30,882 INFO L480 AbstractCegarLoop]: Abstraction has 3121 states and 15573 transitions. [2021-03-11 14:29:30,882 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:29:30,882 INFO L276 IsEmpty]: Start isEmpty. Operand 3121 states and 15573 transitions. [2021-03-11 14:29:30,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:29:30,887 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:29:30,887 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:29:30,887 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable770 [2021-03-11 14:29:30,887 INFO L428 AbstractCegarLoop]: === Iteration 772 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:29:30,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:29:30,888 INFO L82 PathProgramCache]: Analyzing trace with hash 1350723515, now seen corresponding path program 763 times [2021-03-11 14:29:30,888 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:29:30,888 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [728082971] [2021-03-11 14:29:30,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:29:30,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:29:30,900 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:29:30,902 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:29:30,904 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:29:30,905 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:29:30,926 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:29:30,928 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:29:30,964 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:29:30,965 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:29:31,017 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:29:31,019 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:29:31,085 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:29:31,086 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:29:31,172 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:29:31,173 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:29:31,272 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:29:31,274 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:29:31,466 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 29 [2021-03-11 14:29:31,470 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:29:31,472 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:29:31,606 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:29:31,607 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:29:31,756 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:29:31,758 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:29:31,892 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:29:31,892 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [728082971] [2021-03-11 14:29:31,892 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:29:31,892 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:29:31,892 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [492318533] [2021-03-11 14:29:31,892 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:29:31,892 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:29:31,892 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:29:31,892 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:29:31,892 INFO L87 Difference]: Start difference. First operand 3121 states and 15573 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:29:32,484 WARN L205 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 37 [2021-03-11 14:29:32,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:29:32,543 INFO L93 Difference]: Finished difference Result 6038 states and 26846 transitions. [2021-03-11 14:29:32,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:29:32,548 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:29:32,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:29:32,562 INFO L225 Difference]: With dead ends: 6038 [2021-03-11 14:29:32,562 INFO L226 Difference]: Without dead ends: 6021 [2021-03-11 14:29:32,562 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 1160.3ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:29:32,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6021 states. [2021-03-11 14:29:32,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6021 to 3134. [2021-03-11 14:29:32,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3134 states, 3133 states have (on average 4.982444940951165) internal successors, (15610), 3133 states have internal predecessors, (15610), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:29:32,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3134 states to 3134 states and 15610 transitions. [2021-03-11 14:29:32,699 INFO L78 Accepts]: Start accepts. Automaton has 3134 states and 15610 transitions. Word has length 31 [2021-03-11 14:29:32,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:29:32,699 INFO L480 AbstractCegarLoop]: Abstraction has 3134 states and 15610 transitions. [2021-03-11 14:29:32,699 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:29:32,699 INFO L276 IsEmpty]: Start isEmpty. Operand 3134 states and 15610 transitions. [2021-03-11 14:29:32,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:29:32,704 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:29:32,704 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:29:32,704 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable771 [2021-03-11 14:29:32,704 INFO L428 AbstractCegarLoop]: === Iteration 773 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:29:32,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:29:32,705 INFO L82 PathProgramCache]: Analyzing trace with hash 505752063, now seen corresponding path program 764 times [2021-03-11 14:29:32,705 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:29:32,705 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [909812619] [2021-03-11 14:29:32,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:29:32,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:29:32,717 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:29:32,719 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:29:32,720 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:29:32,722 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:29:32,743 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:29:32,744 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:29:32,778 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:29:32,779 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:29:32,827 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:29:32,829 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:29:32,891 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:29:32,892 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:29:32,973 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:29:32,974 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:29:33,069 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:29:33,070 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:29:33,249 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 29 [2021-03-11 14:29:33,252 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:29:33,254 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:29:33,377 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:29:33,379 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:29:33,520 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:29:33,521 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:29:33,650 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:29:33,650 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [909812619] [2021-03-11 14:29:33,650 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:29:33,650 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:29:33,650 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1508863810] [2021-03-11 14:29:33,651 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:29:33,651 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:29:33,651 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:29:33,651 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:29:33,651 INFO L87 Difference]: Start difference. First operand 3134 states and 15610 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:29:34,204 WARN L205 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 38 [2021-03-11 14:29:34,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:29:34,264 INFO L93 Difference]: Finished difference Result 6039 states and 26842 transitions. [2021-03-11 14:29:34,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:29:34,269 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:29:34,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:29:34,282 INFO L225 Difference]: With dead ends: 6039 [2021-03-11 14:29:34,282 INFO L226 Difference]: Without dead ends: 6015 [2021-03-11 14:29:34,282 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 1098.5ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:29:34,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6015 states. [2021-03-11 14:29:34,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6015 to 3128. [2021-03-11 14:29:34,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3128 states, 3127 states have (on average 4.986568596098497) internal successors, (15593), 3127 states have internal predecessors, (15593), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:29:34,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3128 states to 3128 states and 15593 transitions. [2021-03-11 14:29:34,417 INFO L78 Accepts]: Start accepts. Automaton has 3128 states and 15593 transitions. Word has length 31 [2021-03-11 14:29:34,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:29:34,417 INFO L480 AbstractCegarLoop]: Abstraction has 3128 states and 15593 transitions. [2021-03-11 14:29:34,417 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:29:34,417 INFO L276 IsEmpty]: Start isEmpty. Operand 3128 states and 15593 transitions. [2021-03-11 14:29:34,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:29:34,421 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:29:34,421 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:29:34,422 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable772 [2021-03-11 14:29:34,422 INFO L428 AbstractCegarLoop]: === Iteration 774 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:29:34,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:29:34,422 INFO L82 PathProgramCache]: Analyzing trace with hash 714256661, now seen corresponding path program 765 times [2021-03-11 14:29:34,422 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:29:34,422 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [351141793] [2021-03-11 14:29:34,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:29:34,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:29:34,434 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:29:34,436 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:29:34,437 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:29:34,439 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:29:34,459 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:29:34,460 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:29:34,493 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:29:34,495 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:29:34,542 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:29:34,544 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:29:34,607 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:29:34,609 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:29:34,690 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:29:34,691 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:29:34,784 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:29:34,786 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:29:34,965 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 29 [2021-03-11 14:29:34,968 INFO L142 QuantifierPusher]: treesize reduction 54, result has 55.4 percent of original size [2021-03-11 14:29:34,970 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-03-11 14:29:35,174 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 32 [2021-03-11 14:29:35,178 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:29:35,179 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:29:35,323 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:29:35,325 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:29:35,453 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:29:35,453 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [351141793] [2021-03-11 14:29:35,453 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:29:35,453 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:29:35,453 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789519709] [2021-03-11 14:29:35,453 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:29:35,453 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:29:35,453 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:29:35,454 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:29:35,454 INFO L87 Difference]: Start difference. First operand 3128 states and 15593 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:29:36,139 WARN L205 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 37 [2021-03-11 14:29:36,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:29:36,185 INFO L93 Difference]: Finished difference Result 6043 states and 26849 transitions. [2021-03-11 14:29:36,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:29:36,190 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:29:36,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:29:36,203 INFO L225 Difference]: With dead ends: 6043 [2021-03-11 14:29:36,203 INFO L226 Difference]: Without dead ends: 6026 [2021-03-11 14:29:36,203 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 1186.9ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:29:36,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6026 states. [2021-03-11 14:29:36,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6026 to 3135. [2021-03-11 14:29:36,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3135 states, 3134 states have (on average 4.979578813018507) internal successors, (15606), 3134 states have internal predecessors, (15606), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:29:36,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3135 states to 3135 states and 15606 transitions. [2021-03-11 14:29:36,338 INFO L78 Accepts]: Start accepts. Automaton has 3135 states and 15606 transitions. Word has length 31 [2021-03-11 14:29:36,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:29:36,338 INFO L480 AbstractCegarLoop]: Abstraction has 3135 states and 15606 transitions. [2021-03-11 14:29:36,338 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:29:36,338 INFO L276 IsEmpty]: Start isEmpty. Operand 3135 states and 15606 transitions. [2021-03-11 14:29:36,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:29:36,343 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:29:36,343 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:29:36,343 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable773 [2021-03-11 14:29:36,343 INFO L428 AbstractCegarLoop]: === Iteration 775 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:29:36,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:29:36,343 INFO L82 PathProgramCache]: Analyzing trace with hash -1398171969, now seen corresponding path program 766 times [2021-03-11 14:29:36,343 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:29:36,343 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [682926265] [2021-03-11 14:29:36,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:29:36,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:29:36,355 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:29:36,357 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:29:36,358 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:29:36,360 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:29:36,380 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:29:36,381 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:29:36,414 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:29:36,416 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:29:36,463 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:29:36,465 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:29:36,526 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:29:36,527 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:29:36,607 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:29:36,608 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:29:36,702 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:29:36,704 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:29:36,883 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 29 [2021-03-11 14:29:36,887 INFO L142 QuantifierPusher]: treesize reduction 54, result has 55.4 percent of original size [2021-03-11 14:29:36,888 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-03-11 14:29:37,093 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 32 [2021-03-11 14:29:37,096 INFO L142 QuantifierPusher]: treesize reduction 72, result has 49.7 percent of original size [2021-03-11 14:29:37,098 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-03-11 14:29:37,245 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:29:37,246 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:29:37,375 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:29:37,375 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [682926265] [2021-03-11 14:29:37,375 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:29:37,375 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:29:37,375 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [735245291] [2021-03-11 14:29:37,375 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:29:37,375 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:29:37,375 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:29:37,375 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:29:37,376 INFO L87 Difference]: Start difference. First operand 3135 states and 15606 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:29:37,824 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 40 [2021-03-11 14:29:37,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:29:37,888 INFO L93 Difference]: Finished difference Result 6048 states and 26852 transitions. [2021-03-11 14:29:37,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:29:37,892 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:29:37,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:29:37,905 INFO L225 Difference]: With dead ends: 6048 [2021-03-11 14:29:37,906 INFO L226 Difference]: Without dead ends: 6019 [2021-03-11 14:29:37,906 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 1095.4ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:29:37,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6019 states. [2021-03-11 14:29:38,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6019 to 3128. [2021-03-11 14:29:38,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3128 states, 3127 states have (on average 4.98433002878158) internal successors, (15586), 3127 states have internal predecessors, (15586), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:29:38,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3128 states to 3128 states and 15586 transitions. [2021-03-11 14:29:38,039 INFO L78 Accepts]: Start accepts. Automaton has 3128 states and 15586 transitions. Word has length 31 [2021-03-11 14:29:38,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:29:38,039 INFO L480 AbstractCegarLoop]: Abstraction has 3128 states and 15586 transitions. [2021-03-11 14:29:38,039 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:29:38,039 INFO L276 IsEmpty]: Start isEmpty. Operand 3128 states and 15586 transitions. [2021-03-11 14:29:38,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:29:38,044 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:29:38,044 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:29:38,044 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable774 [2021-03-11 14:29:38,044 INFO L428 AbstractCegarLoop]: === Iteration 776 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:29:38,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:29:38,044 INFO L82 PathProgramCache]: Analyzing trace with hash -555026027, now seen corresponding path program 767 times [2021-03-11 14:29:38,044 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:29:38,044 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [399343605] [2021-03-11 14:29:38,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:29:38,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:29:38,057 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:29:38,058 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:29:38,060 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:29:38,061 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:29:38,081 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:29:38,083 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:29:38,116 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:29:38,117 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:29:38,165 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:29:38,167 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:29:38,228 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:29:38,229 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:29:38,310 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:29:38,311 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:29:38,405 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:29:38,407 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:29:38,587 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 29 [2021-03-11 14:29:38,590 INFO L142 QuantifierPusher]: treesize reduction 54, result has 55.4 percent of original size [2021-03-11 14:29:38,592 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-03-11 14:29:38,798 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 32 [2021-03-11 14:29:38,802 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:29:38,804 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:29:38,946 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:29:38,947 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:29:39,077 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:29:39,077 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [399343605] [2021-03-11 14:29:39,077 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:29:39,077 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:29:39,077 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1645818397] [2021-03-11 14:29:39,077 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:29:39,077 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:29:39,077 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:29:39,077 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:29:39,077 INFO L87 Difference]: Start difference. First operand 3128 states and 15586 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:29:39,624 WARN L205 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 38 [2021-03-11 14:29:39,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:29:39,673 INFO L93 Difference]: Finished difference Result 6046 states and 26849 transitions. [2021-03-11 14:29:39,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:29:39,678 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:29:39,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:29:39,691 INFO L225 Difference]: With dead ends: 6046 [2021-03-11 14:29:39,691 INFO L226 Difference]: Without dead ends: 6028 [2021-03-11 14:29:39,691 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 1190.5ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:29:39,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6028 states. [2021-03-11 14:29:39,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6028 to 3136. [2021-03-11 14:29:39,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3136 states, 3135 states have (on average 4.976395534290271) internal successors, (15601), 3135 states have internal predecessors, (15601), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:29:39,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3136 states to 3136 states and 15601 transitions. [2021-03-11 14:29:39,826 INFO L78 Accepts]: Start accepts. Automaton has 3136 states and 15601 transitions. Word has length 31 [2021-03-11 14:29:39,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:29:39,826 INFO L480 AbstractCegarLoop]: Abstraction has 3136 states and 15601 transitions. [2021-03-11 14:29:39,826 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:29:39,827 INFO L276 IsEmpty]: Start isEmpty. Operand 3136 states and 15601 transitions. [2021-03-11 14:29:39,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:29:39,831 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:29:39,831 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:29:39,831 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable775 [2021-03-11 14:29:39,831 INFO L428 AbstractCegarLoop]: === Iteration 777 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:29:39,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:29:39,832 INFO L82 PathProgramCache]: Analyzing trace with hash -1822483205, now seen corresponding path program 768 times [2021-03-11 14:29:39,832 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:29:39,832 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [340561328] [2021-03-11 14:29:39,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:29:39,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:29:39,844 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:29:39,845 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:29:39,847 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:29:39,848 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:29:39,869 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:29:39,870 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:29:39,904 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:29:39,906 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:29:39,954 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:29:39,956 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:29:40,019 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:29:40,020 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:29:40,102 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:29:40,104 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:29:40,199 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:29:40,201 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:29:40,384 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 29 [2021-03-11 14:29:40,388 INFO L142 QuantifierPusher]: treesize reduction 54, result has 55.4 percent of original size [2021-03-11 14:29:40,389 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-03-11 14:29:40,601 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 32 [2021-03-11 14:29:40,605 INFO L142 QuantifierPusher]: treesize reduction 72, result has 49.7 percent of original size [2021-03-11 14:29:40,606 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-03-11 14:29:40,756 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:29:40,758 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:29:40,888 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:29:40,888 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [340561328] [2021-03-11 14:29:40,888 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:29:40,888 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:29:40,888 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [139051165] [2021-03-11 14:29:40,888 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:29:40,888 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:29:40,889 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:29:40,889 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:29:40,889 INFO L87 Difference]: Start difference. First operand 3136 states and 15601 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:29:41,621 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 40 [2021-03-11 14:29:41,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:29:41,691 INFO L93 Difference]: Finished difference Result 6050 states and 26849 transitions. [2021-03-11 14:29:41,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:29:41,696 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:29:41,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:29:41,709 INFO L225 Difference]: With dead ends: 6050 [2021-03-11 14:29:41,709 INFO L226 Difference]: Without dead ends: 6005 [2021-03-11 14:29:41,709 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 1122.3ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:29:41,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6005 states. [2021-03-11 14:29:41,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6005 to 3113. [2021-03-11 14:29:41,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3113 states, 3112 states have (on average 4.997107969151671) internal successors, (15551), 3112 states have internal predecessors, (15551), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:29:41,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3113 states to 3113 states and 15551 transitions. [2021-03-11 14:29:41,845 INFO L78 Accepts]: Start accepts. Automaton has 3113 states and 15551 transitions. Word has length 31 [2021-03-11 14:29:41,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:29:41,845 INFO L480 AbstractCegarLoop]: Abstraction has 3113 states and 15551 transitions. [2021-03-11 14:29:41,845 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:29:41,845 INFO L276 IsEmpty]: Start isEmpty. Operand 3113 states and 15551 transitions. [2021-03-11 14:29:41,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:29:41,850 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:29:41,850 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:29:41,850 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable776 [2021-03-11 14:29:41,850 INFO L428 AbstractCegarLoop]: === Iteration 778 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:29:41,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:29:41,850 INFO L82 PathProgramCache]: Analyzing trace with hash 1718210739, now seen corresponding path program 769 times [2021-03-11 14:29:41,850 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:29:41,850 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1091241751] [2021-03-11 14:29:41,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:29:41,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:29:41,862 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:29:41,864 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:29:41,865 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:29:41,867 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:29:41,888 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:29:41,890 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:29:41,924 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:29:41,925 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:29:41,975 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:29:41,976 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:29:42,040 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:29:42,041 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:29:42,124 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:29:42,125 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:29:42,223 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:29:42,224 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:29:42,336 INFO L142 QuantifierPusher]: treesize reduction 45, result has 59.1 percent of original size [2021-03-11 14:29:42,338 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:29:42,543 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 31 [2021-03-11 14:29:42,547 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:29:42,548 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:29:42,701 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:29:42,702 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:29:42,837 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:29:42,837 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1091241751] [2021-03-11 14:29:42,837 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:29:42,837 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:29:42,837 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1036223624] [2021-03-11 14:29:42,838 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:29:42,838 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:29:42,838 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:29:42,838 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:29:42,838 INFO L87 Difference]: Start difference. First operand 3113 states and 15551 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:29:43,583 WARN L205 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 40 [2021-03-11 14:29:43,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:29:43,630 INFO L93 Difference]: Finished difference Result 6023 states and 26825 transitions. [2021-03-11 14:29:43,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 14:29:43,636 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-11 14:29:43,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:29:43,649 INFO L225 Difference]: With dead ends: 6023 [2021-03-11 14:29:43,649 INFO L226 Difference]: Without dead ends: 6003 [2021-03-11 14:29:43,649 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 1167.3ms TimeCoverageRelationStatistics Valid=69, Invalid=87, Unknown=0, NotChecked=0, Total=156 [2021-03-11 14:29:43,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6003 states. [2021-03-11 14:29:43,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6003 to 3131. [2021-03-11 14:29:43,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3131 states, 3130 states have (on average 4.98849840255591) internal successors, (15614), 3130 states have internal predecessors, (15614), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:29:43,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3131 states to 3131 states and 15614 transitions. [2021-03-11 14:29:43,787 INFO L78 Accepts]: Start accepts. Automaton has 3131 states and 15614 transitions. Word has length 31 [2021-03-11 14:29:43,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:29:43,787 INFO L480 AbstractCegarLoop]: Abstraction has 3131 states and 15614 transitions. [2021-03-11 14:29:43,787 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:29:43,787 INFO L276 IsEmpty]: Start isEmpty. Operand 3131 states and 15614 transitions. [2021-03-11 14:29:43,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-11 14:29:43,792 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:29:43,792 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:29:43,792 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable777 [2021-03-11 14:29:43,792 INFO L428 AbstractCegarLoop]: === Iteration 779 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:29:43,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:29:43,792 INFO L82 PathProgramCache]: Analyzing trace with hash 873239287, now seen corresponding path program 770 times [2021-03-11 14:29:43,793 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:29:43,793 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1431959287] [2021-03-11 14:29:43,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:29:43,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:29:43,806 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:29:43,807 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:29:43,809 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:29:43,810 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:29:43,831 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:29:43,832 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:29:43,866 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:29:43,867 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:29:43,915 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:29:43,917 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:29:43,979 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:29:43,980 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:29:44,061 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:29:44,062 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:29:44,157 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:29:44,158 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:29:44,267 INFO L142 QuantifierPusher]: treesize reduction 45, result has 59.1 percent of original size [2021-03-11 14:29:44,268 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:29:44,468 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 31 [2021-03-11 14:29:44,472 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 14:29:44,473 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 14:29:44,621 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-11 14:29:44,623 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 14:29:44,752 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:29:44,752 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1431959287] [2021-03-11 14:29:44,752 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:29:44,752 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 14:29:44,752 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [347975037] [2021-03-11 14:29:44,753 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 14:29:44,753 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:29:44,753 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 14:29:44,753 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:29:44,753 INFO L87 Difference]: Start difference. First operand 3131 states and 15614 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Received shutdown request... [2021-03-11 14:29:45,362 WARN L222 SmtUtils]: Removed 10 from assertion stack [2021-03-11 14:29:45,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:29:45,363 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable778 [2021-03-11 14:29:45,363 WARN L545 AbstractCegarLoop]: Verification canceled [2021-03-11 14:29:45,365 WARN L224 ceAbstractionStarter]: Timeout [2021-03-11 14:29:45,365 INFO L202 PluginConnector]: Adding new model example_10.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.03 02:29:45 BasicIcfg [2021-03-11 14:29:45,365 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-11 14:29:45,366 INFO L168 Benchmark]: Toolchain (without parser) took 783242.07 ms. Allocated memory was 255.9 MB in the beginning and 13.3 GB in the end (delta: 13.1 GB). Free memory was 236.4 MB in the beginning and 7.1 GB in the end (delta: -6.8 GB). Peak memory consumption was 6.2 GB. Max. memory is 16.0 GB. [2021-03-11 14:29:45,366 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.11 ms. Allocated memory is still 255.9 MB. Free memory is still 237.5 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-03-11 14:29:45,366 INFO L168 Benchmark]: Boogie Procedure Inliner took 23.60 ms. Allocated memory is still 255.9 MB. Free memory was 235.9 MB in the beginning and 234.4 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-11 14:29:45,366 INFO L168 Benchmark]: Boogie Preprocessor took 15.67 ms. Allocated memory is still 255.9 MB. Free memory was 234.4 MB in the beginning and 233.5 MB in the end (delta: 886.7 kB). Peak memory consumption was 4.2 MB. Max. memory is 16.0 GB. [2021-03-11 14:29:45,366 INFO L168 Benchmark]: RCFGBuilder took 255.24 ms. Allocated memory is still 255.9 MB. Free memory was 233.4 MB in the beginning and 236.7 MB in the end (delta: -3.3 MB). Peak memory consumption was 18.5 MB. Max. memory is 16.0 GB. [2021-03-11 14:29:45,366 INFO L168 Benchmark]: TraceAbstraction took 782940.64 ms. Allocated memory was 255.9 MB in the beginning and 13.3 GB in the end (delta: 13.1 GB). Free memory was 236.2 MB in the beginning and 7.1 GB in the end (delta: -6.8 GB). Peak memory consumption was 6.2 GB. Max. memory is 16.0 GB. [2021-03-11 14:29:45,366 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.11 ms. Allocated memory is still 255.9 MB. Free memory is still 237.5 MB. There was no memory consumed. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 23.60 ms. Allocated memory is still 255.9 MB. Free memory was 235.9 MB in the beginning and 234.4 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Preprocessor took 15.67 ms. Allocated memory is still 255.9 MB. Free memory was 234.4 MB in the beginning and 233.5 MB in the end (delta: 886.7 kB). Peak memory consumption was 4.2 MB. Max. memory is 16.0 GB. * RCFGBuilder took 255.24 ms. Allocated memory is still 255.9 MB. Free memory was 233.4 MB in the beginning and 236.7 MB in the end (delta: -3.3 MB). Peak memory consumption was 18.5 MB. Max. memory is 16.0 GB. * TraceAbstraction took 782940.64 ms. Allocated memory was 255.9 MB in the beginning and 13.3 GB in the end (delta: 13.1 GB). Free memory was 236.2 MB in the beginning and 7.1 GB in the end (delta: -6.8 GB). Peak memory consumption was 6.2 GB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 839.5ms, 84 PlacesBefore, 73 PlacesAfterwards, 143 TransitionsBefore, 132 TransitionsAfterwards, 3780 CoEnabledTransitionPairs, 1 FixpointIterations, 1 TrivialSequentialCompositions, 10 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 11 TotalNumberOfCompositions, 14635 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 14635, positive: 14635, positive conditional: 0, positive unconditional: 14635, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2016, positive: 2016, positive conditional: 0, positive unconditional: 2016, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2016, positive: 2016, positive conditional: 0, positive unconditional: 2016, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 14635, positive: 12619, positive conditional: 0, positive unconditional: 12619, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 2016, unknown conditional: 0, unknown unconditional: 2016] , Statistics on independence cache: Total cache size (in pairs): 945, Positive cache size: 945, Positive conditional cache size: 0, Positive unconditional cache size: 945, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - TimeoutResultAtElement [Line: 33]: Timeout (TraceAbstraction) Unable to prove that assertion always holds (line 33). Cancelled while BasicCegarLoop was constructing difference of abstraction (3131states) and FLOYD_HOARE automaton (currently 11 states, 12 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 42 for 64ms.. - StatisticsResult: Ultimate Automizer benchmark data CFG has 11 procedures, 54 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: TIMEOUT, OverallTime: 782656.2ms, OverallIterations: 779, TraceHistogramMax: 1, EmptinessCheckTime: 5676.2ms, AutomataDifference: 277888.7ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 8441.0ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 118564 SDtfs, 178794 SDslu, 331533 SDs, 0 SdLazy, 88087 SolverSat, 36 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 58558.6ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 9267 GetRequests, 788 SyntacticMatches, 0 SemanticMatches, 8478 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6160 ImplicationChecksByTransitivity, 415257.4ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=60074occurred in iteration=0, InterpolantAutomatonStates: 9255, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 123142.1ms AutomataMinimizationTime, 778 MinimizatonAttempts, 2215684 StatesRemovedByMinimization, 769 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 229.3ms SsaConstructionTime, 501.5ms SatisfiabilityAnalysisTime, 364798.9ms InterpolantComputationTime, 24149 NumberOfCodeBlocks, 24149 NumberOfCodeBlocksAsserted, 779 NumberOfCheckSat, 23370 ConstructedInterpolants, 0 QuantifiedInterpolants, 1070952 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 779 InterpolantComputations, 779 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown