/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-Delay.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/ticket-6.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-9e34d99ae2c6837f487980c721c4b6acf9d9b15c-9e34d99 [2021-07-09 23:06:16,050 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-09 23:06:16,052 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-09 23:06:16,081 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-07-09 23:06:16,081 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-07-09 23:06:16,084 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-07-09 23:06:16,086 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-07-09 23:06:16,092 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-07-09 23:06:16,094 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-07-09 23:06:16,098 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-07-09 23:06:16,099 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-07-09 23:06:16,100 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-07-09 23:06:16,100 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-07-09 23:06:16,103 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-07-09 23:06:16,104 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-07-09 23:06:16,105 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-07-09 23:06:16,108 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-07-09 23:06:16,109 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-07-09 23:06:16,112 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-07-09 23:06:16,118 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-07-09 23:06:16,119 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-07-09 23:06:16,121 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-07-09 23:06:16,121 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-07-09 23:06:16,123 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-07-09 23:06:16,129 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-07-09 23:06:16,130 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-07-09 23:06:16,130 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-07-09 23:06:16,131 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-07-09 23:06:16,132 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-07-09 23:06:16,132 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-07-09 23:06:16,133 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-07-09 23:06:16,134 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-07-09 23:06:16,137 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-07-09 23:06:16,137 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-07-09 23:06:16,138 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-07-09 23:06:16,138 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-07-09 23:06:16,139 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-07-09 23:06:16,139 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-07-09 23:06:16,140 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-07-09 23:06:16,149 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-07-09 23:06:16,149 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-07-09 23:06:16,153 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-Delay.epf [2021-07-09 23:06:16,186 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-09 23:06:16,186 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-09 23:06:16,189 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-09 23:06:16,189 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-09 23:06:16,189 INFO L138 SettingsManager]: * Use SBE=true [2021-07-09 23:06:16,189 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-09 23:06:16,189 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-09 23:06:16,189 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-09 23:06:16,189 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-09 23:06:16,190 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-09 23:06:16,190 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-09 23:06:16,191 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-09 23:06:16,191 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-09 23:06:16,191 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-09 23:06:16,191 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-09 23:06:16,191 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-09 23:06:16,191 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-09 23:06:16,191 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-09 23:06:16,192 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-09 23:06:16,192 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-07-09 23:06:16,192 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-09 23:06:16,192 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-09 23:06:16,192 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-09 23:06:16,192 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-09 23:06:16,193 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-09 23:06:16,193 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-09 23:06:16,193 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-07-09 23:06:16,193 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-07-09 23:06:16,193 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-09 23:06:16,193 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_DELAY_SET [2021-07-09 23:06:16,193 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-07-09 23:06:16,474 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-09 23:06:16,504 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-09 23:06:16,506 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-09 23:06:16,507 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-07-09 23:06:16,513 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-07-09 23:06:16,513 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/ticket-6.wvr.bpl [2021-07-09 23:06:16,514 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/ticket-6.wvr.bpl' [2021-07-09 23:06:16,545 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-09 23:06:16,546 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-07-09 23:06:16,548 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-09 23:06:16,548 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-09 23:06:16,548 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-09 23:06:16,560 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "ticket-6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.07 11:06:16" (1/1) ... [2021-07-09 23:06:16,568 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "ticket-6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.07 11:06:16" (1/1) ... [2021-07-09 23:06:16,576 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-09 23:06:16,577 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-09 23:06:16,577 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-09 23:06:16,578 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-09 23:06:16,584 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "ticket-6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.07 11:06:16" (1/1) ... [2021-07-09 23:06:16,585 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "ticket-6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.07 11:06:16" (1/1) ... [2021-07-09 23:06:16,593 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "ticket-6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.07 11:06:16" (1/1) ... [2021-07-09 23:06:16,594 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "ticket-6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.07 11:06:16" (1/1) ... [2021-07-09 23:06:16,603 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "ticket-6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.07 11:06:16" (1/1) ... [2021-07-09 23:06:16,604 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "ticket-6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.07 11:06:16" (1/1) ... [2021-07-09 23:06:16,606 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "ticket-6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.07 11:06:16" (1/1) ... [2021-07-09 23:06:16,611 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-09 23:06:16,612 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-09 23:06:16,612 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-09 23:06:16,612 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-09 23:06:16,614 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "ticket-6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.07 11:06:16" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-09 23:06:16,678 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-07-09 23:06:16,679 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-07-09 23:06:16,679 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-07-09 23:06:16,679 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-07-09 23:06:16,679 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-07-09 23:06:16,679 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-07-09 23:06:16,680 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-07-09 23:06:16,680 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-09 23:06:16,680 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-09 23:06:16,680 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-07-09 23:06:16,680 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-07-09 23:06:16,680 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-07-09 23:06:16,680 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread4 given in one single declaration [2021-07-09 23:06:16,681 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2021-07-09 23:06:16,681 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2021-07-09 23:06:16,681 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread5 given in one single declaration [2021-07-09 23:06:16,681 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2021-07-09 23:06:16,681 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2021-07-09 23:06:16,681 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread6 given in one single declaration [2021-07-09 23:06:16,681 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2021-07-09 23:06:16,681 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2021-07-09 23:06:16,682 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-07-09 23:06:16,885 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-09 23:06:16,885 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-07-09 23:06:16,887 INFO L202 PluginConnector]: Adding new model ticket-6.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.07 11:06:16 BoogieIcfgContainer [2021-07-09 23:06:16,887 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-09 23:06:16,889 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-09 23:06:16,889 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-09 23:06:16,891 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-09 23:06:16,891 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "ticket-6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.07 11:06:16" (1/2) ... [2021-07-09 23:06:16,892 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55edbc7b and model type ticket-6.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.07 11:06:16, skipping insertion in model container [2021-07-09 23:06:16,892 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "ticket-6.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.07 11:06:16" (2/2) ... [2021-07-09 23:06:16,894 INFO L111 eAbstractionObserver]: Analyzing ICFG ticket-6.wvr.bpl [2021-07-09 23:06:16,898 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-07-09 23:06:16,898 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-09 23:06:16,898 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-07-09 23:06:16,899 INFO L474 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-07-09 23:06:16,955 INFO L149 ThreadInstanceAdder]: Constructed 6 joinOtherThreadTransitions. [2021-07-09 23:06:16,974 INFO L255 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2021-07-09 23:06:16,993 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-09 23:06:16,993 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-09 23:06:16,993 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-09 23:06:16,993 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-09 23:06:16,994 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-09 23:06:16,994 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-09 23:06:16,994 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-09 23:06:16,994 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-07-09 23:06:23,487 INFO L276 IsEmpty]: Start isEmpty. Operand has 74652 states, 57286 states have (on average 3.317773976189645) internal successors, (190062), 74651 states have internal predecessors, (190062), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 23:06:23,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-07-09 23:06:23,923 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 23:06:23,924 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 23:06:23,924 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-07-09 23:06:23,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 23:06:23,929 INFO L82 PathProgramCache]: Analyzing trace with hash -1245130876, now seen corresponding path program 1 times [2021-07-09 23:06:23,945 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 23:06:23,946 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1127567919] [2021-07-09 23:06:23,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 23:06:24,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 23:06:24,138 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:06:24,138 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-09 23:06:24,146 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:06:24,147 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:06:24,154 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:06:24,155 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:06:24,161 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:06:24,162 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:06:24,163 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:06:24,163 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:06:24,165 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:06:24,165 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:06:24,166 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:06:24,166 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:06:24,172 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:06:24,173 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 23:06:24,176 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 23:06:24,176 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 23:06:24,176 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1127567919] [2021-07-09 23:06:24,177 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1127567919] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 23:06:24,177 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 23:06:24,177 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-07-09 23:06:24,178 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [704110398] [2021-07-09 23:06:24,181 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-07-09 23:06:24,181 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 23:06:24,194 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-07-09 23:06:24,195 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-07-09 23:06:24,326 INFO L87 Difference]: Start difference. First operand has 74652 states, 57286 states have (on average 3.317773976189645) internal successors, (190062), 74651 states have internal predecessors, (190062), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 5 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 23:06:26,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 23:06:26,206 INFO L93 Difference]: Finished difference Result 179851 states and 464392 transitions. [2021-07-09 23:06:26,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-09 23:06:26,208 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 5 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2021-07-09 23:06:26,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 23:06:27,459 INFO L225 Difference]: With dead ends: 179851 [2021-07-09 23:06:27,459 INFO L226 Difference]: Without dead ends: 76237 [2021-07-09 23:06:27,461 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 31.2ms TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-07-09 23:06:28,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76237 states. [2021-07-09 23:06:31,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76237 to 36491. [2021-07-09 23:06:31,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36491 states, 36490 states have (on average 3.607563716086599) internal successors, (131640), 36490 states have internal predecessors, (131640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 23:06:31,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36491 states to 36491 states and 131640 transitions. [2021-07-09 23:06:31,866 INFO L78 Accepts]: Start accepts. Automaton has 36491 states and 131640 transitions. Word has length 46 [2021-07-09 23:06:31,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 23:06:31,867 INFO L482 AbstractCegarLoop]: Abstraction has 36491 states and 131640 transitions. [2021-07-09 23:06:31,868 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 5 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 23:06:31,868 INFO L276 IsEmpty]: Start isEmpty. Operand 36491 states and 131640 transitions. [2021-07-09 23:06:32,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-07-09 23:06:32,150 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 23:06:32,150 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 23:06:32,150 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-07-09 23:06:32,151 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-07-09 23:06:32,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 23:06:32,154 INFO L82 PathProgramCache]: Analyzing trace with hash 1091509576, now seen corresponding path program 2 times [2021-07-09 23:06:32,154 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 23:06:32,154 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1446723255] [2021-07-09 23:06:32,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 23:06:32,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 23:06:32,253 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:06:32,254 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-09 23:06:32,257 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:06:32,257 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:06:32,261 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:06:32,261 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:06:32,267 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:06:32,268 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:06:32,268 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:06:32,269 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:06:32,270 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:06:32,270 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:06:32,271 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:06:32,271 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:06:32,272 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:06:32,272 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:06:32,279 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:06:32,279 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:06:32,296 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:06:32,297 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:06:32,303 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:06:32,304 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:06:32,310 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:06:32,311 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 23:06:32,312 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 23:06:32,313 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 23:06:32,313 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1446723255] [2021-07-09 23:06:32,313 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1446723255] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 23:06:32,313 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 23:06:32,313 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-07-09 23:06:32,314 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [346246651] [2021-07-09 23:06:32,315 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-07-09 23:06:32,315 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 23:06:32,329 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-07-09 23:06:32,329 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-07-09 23:06:32,329 INFO L87 Difference]: Start difference. First operand 36491 states and 131640 transitions. Second operand has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 8 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 23:06:34,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 23:06:34,071 INFO L93 Difference]: Finished difference Result 110934 states and 381289 transitions. [2021-07-09 23:06:34,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-09 23:06:34,071 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 8 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2021-07-09 23:06:34,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 23:06:34,606 INFO L225 Difference]: With dead ends: 110934 [2021-07-09 23:06:34,606 INFO L226 Difference]: Without dead ends: 110934 [2021-07-09 23:06:34,607 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 105.5ms TimeCoverageRelationStatistics Valid=71, Invalid=139, Unknown=0, NotChecked=0, Total=210 [2021-07-09 23:06:35,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110934 states. [2021-07-09 23:06:37,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110934 to 52692. [2021-07-09 23:06:37,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52692 states, 52691 states have (on average 3.471560608073485) internal successors, (182920), 52691 states have internal predecessors, (182920), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 23:06:37,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52692 states to 52692 states and 182920 transitions. [2021-07-09 23:06:37,732 INFO L78 Accepts]: Start accepts. Automaton has 52692 states and 182920 transitions. Word has length 46 [2021-07-09 23:06:37,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 23:06:37,732 INFO L482 AbstractCegarLoop]: Abstraction has 52692 states and 182920 transitions. [2021-07-09 23:06:37,732 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 8 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 23:06:37,733 INFO L276 IsEmpty]: Start isEmpty. Operand 52692 states and 182920 transitions. [2021-07-09 23:06:37,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-07-09 23:06:37,881 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 23:06:37,882 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 23:06:37,882 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-07-09 23:06:37,882 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-07-09 23:06:37,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 23:06:37,882 INFO L82 PathProgramCache]: Analyzing trace with hash 1202601288, now seen corresponding path program 3 times [2021-07-09 23:06:37,883 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 23:06:37,883 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [372956113] [2021-07-09 23:06:37,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 23:06:37,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 23:06:37,939 INFO L142 QuantifierPusher]: treesize reduction 11, result has 52.2 percent of original size [2021-07-09 23:06:37,940 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-07-09 23:06:37,951 INFO L142 QuantifierPusher]: treesize reduction 4, result has 60.0 percent of original size [2021-07-09 23:06:37,951 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-07-09 23:06:37,957 INFO L142 QuantifierPusher]: treesize reduction 8, result has 42.9 percent of original size [2021-07-09 23:06:37,958 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-07-09 23:06:37,959 INFO L142 QuantifierPusher]: treesize reduction 4, result has 60.0 percent of original size [2021-07-09 23:06:37,959 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-07-09 23:06:37,960 INFO L142 QuantifierPusher]: treesize reduction 4, result has 60.0 percent of original size [2021-07-09 23:06:37,960 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-07-09 23:06:37,961 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:06:37,961 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-07-09 23:06:37,966 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:06:37,967 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-09 23:06:37,974 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:06:37,974 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-07-09 23:06:37,975 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:06:37,975 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 23:06:37,976 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 23:06:37,976 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 23:06:37,976 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [372956113] [2021-07-09 23:06:37,976 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [372956113] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 23:06:37,976 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 23:06:37,976 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-07-09 23:06:37,977 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [705934547] [2021-07-09 23:06:37,977 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-07-09 23:06:37,977 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 23:06:37,978 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-07-09 23:06:37,978 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-07-09 23:06:37,978 INFO L87 Difference]: Start difference. First operand 52692 states and 182920 transitions. Second operand has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 5 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 23:06:38,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 23:06:38,745 INFO L93 Difference]: Finished difference Result 82651 states and 288984 transitions. [2021-07-09 23:06:38,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-09 23:06:38,757 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 5 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2021-07-09 23:06:38,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 23:06:39,411 INFO L225 Difference]: With dead ends: 82651 [2021-07-09 23:06:39,411 INFO L226 Difference]: Without dead ends: 56875 [2021-07-09 23:06:39,412 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 26.0ms TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-07-09 23:06:39,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56875 states. [2021-07-09 23:06:40,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56875 to 55735. [2021-07-09 23:06:41,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55735 states, 55734 states have (on average 3.4310654178777766) internal successors, (191227), 55734 states have internal predecessors, (191227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 23:06:41,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55735 states to 55735 states and 191227 transitions. [2021-07-09 23:06:41,247 INFO L78 Accepts]: Start accepts. Automaton has 55735 states and 191227 transitions. Word has length 46 [2021-07-09 23:06:41,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 23:06:41,248 INFO L482 AbstractCegarLoop]: Abstraction has 55735 states and 191227 transitions. [2021-07-09 23:06:41,248 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 5 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 23:06:41,248 INFO L276 IsEmpty]: Start isEmpty. Operand 55735 states and 191227 transitions. [2021-07-09 23:06:41,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-07-09 23:06:41,751 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 23:06:41,751 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 23:06:41,751 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-07-09 23:06:41,751 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-07-09 23:06:41,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 23:06:41,753 INFO L82 PathProgramCache]: Analyzing trace with hash 1302375654, now seen corresponding path program 4 times [2021-07-09 23:06:41,756 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 23:06:41,756 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [534617393] [2021-07-09 23:06:41,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 23:06:41,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 23:06:41,796 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:06:41,796 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-09 23:06:41,799 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:06:41,799 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:06:41,803 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:06:41,803 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:06:41,807 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:06:41,808 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:06:41,808 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:06:41,808 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:06:41,809 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:06:41,809 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:06:41,809 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:06:41,810 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:06:41,810 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:06:41,811 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:06:41,815 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:06:41,816 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:06:41,821 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:06:41,821 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 23:06:41,822 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 23:06:41,822 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 23:06:41,822 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [534617393] [2021-07-09 23:06:41,822 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [534617393] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 23:06:41,822 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 23:06:41,823 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-07-09 23:06:41,823 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [833108085] [2021-07-09 23:06:41,823 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-07-09 23:06:41,823 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 23:06:41,824 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-07-09 23:06:41,824 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-07-09 23:06:41,824 INFO L87 Difference]: Start difference. First operand 55735 states and 191227 transitions. Second operand has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 6 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 23:06:42,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 23:06:42,816 INFO L93 Difference]: Finished difference Result 107238 states and 350506 transitions. [2021-07-09 23:06:42,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-09 23:06:42,816 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 6 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2021-07-09 23:06:42,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 23:06:43,318 INFO L225 Difference]: With dead ends: 107238 [2021-07-09 23:06:43,319 INFO L226 Difference]: Without dead ends: 106546 [2021-07-09 23:06:43,319 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 36.4ms TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2021-07-09 23:06:44,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106546 states. [2021-07-09 23:06:45,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106546 to 61897. [2021-07-09 23:06:45,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61897 states, 61896 states have (on average 3.3264831329972857) internal successors, (205896), 61896 states have internal predecessors, (205896), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 23:06:46,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61897 states to 61897 states and 205896 transitions. [2021-07-09 23:06:46,304 INFO L78 Accepts]: Start accepts. Automaton has 61897 states and 205896 transitions. Word has length 46 [2021-07-09 23:06:46,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 23:06:46,309 INFO L482 AbstractCegarLoop]: Abstraction has 61897 states and 205896 transitions. [2021-07-09 23:06:46,309 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 6 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 23:06:46,310 INFO L276 IsEmpty]: Start isEmpty. Operand 61897 states and 205896 transitions. [2021-07-09 23:06:46,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-07-09 23:06:46,494 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 23:06:46,494 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 23:06:46,495 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-07-09 23:06:46,495 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-07-09 23:06:46,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 23:06:46,495 INFO L82 PathProgramCache]: Analyzing trace with hash 1025752456, now seen corresponding path program 5 times [2021-07-09 23:06:46,495 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 23:06:46,495 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [931514636] [2021-07-09 23:06:46,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 23:06:46,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 23:06:46,521 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:06:46,521 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-09 23:06:46,524 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:06:46,524 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:06:46,527 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:06:46,527 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:06:46,531 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:06:46,531 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:06:46,532 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:06:46,532 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:06:46,533 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:06:46,533 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:06:46,533 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:06:46,534 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:06:46,534 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:06:46,534 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:06:46,539 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:06:46,539 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:06:46,544 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:06:46,544 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:06:46,551 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:06:46,551 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:06:46,557 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:06:46,558 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 23:06:46,558 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 23:06:46,558 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 23:06:46,558 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [931514636] [2021-07-09 23:06:46,558 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [931514636] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 23:06:46,558 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 23:06:46,558 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-07-09 23:06:46,559 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [140250670] [2021-07-09 23:06:46,559 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-07-09 23:06:46,559 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 23:06:46,559 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-07-09 23:06:46,559 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-07-09 23:06:46,560 INFO L87 Difference]: Start difference. First operand 61897 states and 205896 transitions. Second operand has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 8 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 23:06:48,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 23:06:48,149 INFO L93 Difference]: Finished difference Result 134802 states and 434362 transitions. [2021-07-09 23:06:48,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-09 23:06:48,151 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 8 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2021-07-09 23:06:48,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 23:06:48,841 INFO L225 Difference]: With dead ends: 134802 [2021-07-09 23:06:48,842 INFO L226 Difference]: Without dead ends: 130652 [2021-07-09 23:06:48,842 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 80.2ms TimeCoverageRelationStatistics Valid=71, Invalid=139, Unknown=0, NotChecked=0, Total=210 [2021-07-09 23:06:49,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130652 states. [2021-07-09 23:06:51,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130652 to 65003. [2021-07-09 23:06:51,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65003 states, 65002 states have (on average 3.288421894710932) internal successors, (213754), 65002 states have internal predecessors, (213754), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 23:06:52,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65003 states to 65003 states and 213754 transitions. [2021-07-09 23:06:52,299 INFO L78 Accepts]: Start accepts. Automaton has 65003 states and 213754 transitions. Word has length 46 [2021-07-09 23:06:52,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 23:06:52,300 INFO L482 AbstractCegarLoop]: Abstraction has 65003 states and 213754 transitions. [2021-07-09 23:06:52,300 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 8 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 23:06:52,300 INFO L276 IsEmpty]: Start isEmpty. Operand 65003 states and 213754 transitions. [2021-07-09 23:06:52,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-07-09 23:06:52,511 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 23:06:52,511 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 23:06:52,511 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-07-09 23:06:52,512 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-07-09 23:06:52,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 23:06:52,512 INFO L82 PathProgramCache]: Analyzing trace with hash 1797329948, now seen corresponding path program 6 times [2021-07-09 23:06:52,512 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 23:06:52,513 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [220192969] [2021-07-09 23:06:52,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 23:06:52,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 23:06:52,545 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:06:52,545 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-09 23:06:52,549 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:06:52,552 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:06:52,556 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:06:52,557 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:06:52,562 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:06:52,562 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:06:52,563 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:06:52,563 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:06:52,563 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:06:52,564 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:06:52,565 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:06:52,566 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:06:52,567 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:06:52,567 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:06:52,572 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:06:52,572 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:06:52,578 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:06:52,578 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 23:06:52,581 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 23:06:52,581 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 23:06:52,581 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [220192969] [2021-07-09 23:06:52,582 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [220192969] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 23:06:52,582 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 23:06:52,582 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-07-09 23:06:52,582 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [354008983] [2021-07-09 23:06:52,583 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-07-09 23:06:52,583 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 23:06:52,584 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-07-09 23:06:52,584 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-07-09 23:06:52,584 INFO L87 Difference]: Start difference. First operand 65003 states and 213754 transitions. Second operand has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 6 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 23:06:53,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 23:06:53,756 INFO L93 Difference]: Finished difference Result 122835 states and 384888 transitions. [2021-07-09 23:06:53,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-09 23:06:53,757 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 6 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2021-07-09 23:06:53,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 23:06:54,557 INFO L225 Difference]: With dead ends: 122835 [2021-07-09 23:06:54,557 INFO L226 Difference]: Without dead ends: 122663 [2021-07-09 23:06:54,557 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 37.6ms TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2021-07-09 23:06:55,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122663 states. [2021-07-09 23:06:57,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122663 to 72294. [2021-07-09 23:06:57,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72294 states, 72293 states have (on average 3.1979998063436295) internal successors, (231193), 72293 states have internal predecessors, (231193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 23:06:57,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72294 states to 72294 states and 231193 transitions. [2021-07-09 23:06:57,494 INFO L78 Accepts]: Start accepts. Automaton has 72294 states and 231193 transitions. Word has length 46 [2021-07-09 23:06:57,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 23:06:57,494 INFO L482 AbstractCegarLoop]: Abstraction has 72294 states and 231193 transitions. [2021-07-09 23:06:57,494 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 6 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 23:06:57,495 INFO L276 IsEmpty]: Start isEmpty. Operand 72294 states and 231193 transitions. [2021-07-09 23:06:57,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-07-09 23:06:57,662 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 23:06:57,662 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 23:06:57,662 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-07-09 23:06:57,662 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-07-09 23:06:57,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 23:06:57,663 INFO L82 PathProgramCache]: Analyzing trace with hash 1543783018, now seen corresponding path program 7 times [2021-07-09 23:06:57,663 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 23:06:57,663 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1354997177] [2021-07-09 23:06:57,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 23:06:57,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 23:06:57,692 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:06:57,692 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-09 23:06:57,695 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:06:57,695 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:06:57,698 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:06:57,699 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:06:57,703 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:06:57,703 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:06:57,703 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:06:57,704 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:06:57,707 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:06:57,707 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:06:57,708 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:06:57,708 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:06:57,708 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:06:57,709 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:06:57,713 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:06:57,713 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:06:57,718 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:06:57,718 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:06:57,723 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:06:57,723 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:06:57,729 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:06:57,729 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 23:06:57,731 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 23:06:57,731 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 23:06:57,731 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1354997177] [2021-07-09 23:06:57,731 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1354997177] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 23:06:57,731 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 23:06:57,731 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-07-09 23:06:57,731 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [819397176] [2021-07-09 23:06:57,732 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-07-09 23:06:57,732 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 23:06:57,732 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-07-09 23:06:57,732 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-07-09 23:06:57,732 INFO L87 Difference]: Start difference. First operand 72294 states and 231193 transitions. Second operand has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 8 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 23:06:59,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 23:06:59,361 INFO L93 Difference]: Finished difference Result 149524 states and 465786 transitions. [2021-07-09 23:06:59,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-09 23:06:59,362 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 8 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2021-07-09 23:06:59,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 23:06:59,968 INFO L225 Difference]: With dead ends: 149524 [2021-07-09 23:06:59,969 INFO L226 Difference]: Without dead ends: 148304 [2021-07-09 23:06:59,969 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 64.9ms TimeCoverageRelationStatistics Valid=71, Invalid=139, Unknown=0, NotChecked=0, Total=210 [2021-07-09 23:07:00,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148304 states. [2021-07-09 23:07:03,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148304 to 78358. [2021-07-09 23:07:03,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78358 states, 78357 states have (on average 3.1656393174828032) internal successors, (248050), 78357 states have internal predecessors, (248050), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 23:07:04,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78358 states to 78358 states and 248050 transitions. [2021-07-09 23:07:04,079 INFO L78 Accepts]: Start accepts. Automaton has 78358 states and 248050 transitions. Word has length 46 [2021-07-09 23:07:04,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 23:07:04,079 INFO L482 AbstractCegarLoop]: Abstraction has 78358 states and 248050 transitions. [2021-07-09 23:07:04,080 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 8 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 23:07:04,080 INFO L276 IsEmpty]: Start isEmpty. Operand 78358 states and 248050 transitions. [2021-07-09 23:07:04,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-07-09 23:07:04,301 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 23:07:04,302 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 23:07:04,302 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-07-09 23:07:04,302 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-07-09 23:07:04,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 23:07:04,303 INFO L82 PathProgramCache]: Analyzing trace with hash -2056591768, now seen corresponding path program 8 times [2021-07-09 23:07:04,303 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 23:07:04,303 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2035218152] [2021-07-09 23:07:04,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 23:07:04,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 23:07:04,395 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:07:04,396 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-09 23:07:04,400 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:07:04,400 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:07:04,404 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:07:04,404 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:07:04,409 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:07:04,410 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:07:04,414 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:07:04,415 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:07:04,415 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:07:04,416 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:07:04,421 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:07:04,421 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:07:04,427 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:07:04,443 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:07:04,443 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:07:04,443 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:07:04,449 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:07:04,449 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:07:04,460 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:07:04,460 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:07:04,482 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:07:04,482 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 23:07:04,483 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 23:07:04,483 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 23:07:04,483 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2035218152] [2021-07-09 23:07:04,483 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2035218152] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 23:07:04,483 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 23:07:04,483 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-07-09 23:07:04,483 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [961442490] [2021-07-09 23:07:04,484 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-07-09 23:07:04,484 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 23:07:04,484 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-07-09 23:07:04,484 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2021-07-09 23:07:04,484 INFO L87 Difference]: Start difference. First operand 78358 states and 248050 transitions. Second operand has 10 states, 10 states have (on average 4.6) internal successors, (46), 9 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 23:07:06,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 23:07:06,719 INFO L93 Difference]: Finished difference Result 144725 states and 452001 transitions. [2021-07-09 23:07:06,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-09 23:07:06,720 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.6) internal successors, (46), 9 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2021-07-09 23:07:06,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 23:07:07,681 INFO L225 Difference]: With dead ends: 144725 [2021-07-09 23:07:07,681 INFO L226 Difference]: Without dead ends: 144169 [2021-07-09 23:07:07,682 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 453.1ms TimeCoverageRelationStatistics Valid=82, Invalid=158, Unknown=0, NotChecked=0, Total=240 [2021-07-09 23:07:08,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144169 states. [2021-07-09 23:07:10,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144169 to 76976. [2021-07-09 23:07:10,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76976 states, 76975 states have (on average 3.1607664826242288) internal successors, (243300), 76975 states have internal predecessors, (243300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 23:07:10,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76976 states to 76976 states and 243300 transitions. [2021-07-09 23:07:10,984 INFO L78 Accepts]: Start accepts. Automaton has 76976 states and 243300 transitions. Word has length 46 [2021-07-09 23:07:10,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 23:07:10,985 INFO L482 AbstractCegarLoop]: Abstraction has 76976 states and 243300 transitions. [2021-07-09 23:07:10,985 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 4.6) internal successors, (46), 9 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 23:07:10,985 INFO L276 IsEmpty]: Start isEmpty. Operand 76976 states and 243300 transitions. [2021-07-09 23:07:11,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-07-09 23:07:11,585 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 23:07:11,585 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 23:07:11,585 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-07-09 23:07:11,585 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-07-09 23:07:11,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 23:07:11,586 INFO L82 PathProgramCache]: Analyzing trace with hash -692513146, now seen corresponding path program 9 times [2021-07-09 23:07:11,586 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 23:07:11,586 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1720914732] [2021-07-09 23:07:11,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 23:07:11,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 23:07:11,613 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:07:11,614 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-09 23:07:11,616 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:07:11,616 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:07:11,620 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:07:11,624 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:07:11,632 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:07:11,633 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:07:11,633 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:07:11,634 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:07:11,634 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:07:11,634 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:07:11,640 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:07:11,640 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:07:11,645 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:07:11,646 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:07:11,650 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:07:11,650 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:07:11,656 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:07:11,656 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:07:11,663 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:07:11,663 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:07:11,670 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:07:11,670 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 23:07:11,671 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 23:07:11,671 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 23:07:11,671 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1720914732] [2021-07-09 23:07:11,671 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1720914732] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 23:07:11,671 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 23:07:11,671 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-07-09 23:07:11,671 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [273757521] [2021-07-09 23:07:11,672 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-07-09 23:07:11,672 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 23:07:11,672 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-07-09 23:07:11,672 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2021-07-09 23:07:11,673 INFO L87 Difference]: Start difference. First operand 76976 states and 243300 transitions. Second operand has 11 states, 11 states have (on average 4.181818181818182) internal successors, (46), 10 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 23:07:13,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 23:07:13,154 INFO L93 Difference]: Finished difference Result 147525 states and 459236 transitions. [2021-07-09 23:07:13,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 23:07:13,155 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.181818181818182) internal successors, (46), 10 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2021-07-09 23:07:13,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 23:07:14,094 INFO L225 Difference]: With dead ends: 147525 [2021-07-09 23:07:14,095 INFO L226 Difference]: Without dead ends: 146789 [2021-07-09 23:07:14,095 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 114.3ms TimeCoverageRelationStatistics Valid=141, Invalid=279, Unknown=0, NotChecked=0, Total=420 [2021-07-09 23:07:14,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146789 states. [2021-07-09 23:07:17,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146789 to 81089. [2021-07-09 23:07:17,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81089 states, 81088 states have (on average 3.1384915153906867) internal successors, (254494), 81088 states have internal predecessors, (254494), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 23:07:17,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81089 states to 81089 states and 254494 transitions. [2021-07-09 23:07:17,800 INFO L78 Accepts]: Start accepts. Automaton has 81089 states and 254494 transitions. Word has length 46 [2021-07-09 23:07:17,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 23:07:17,800 INFO L482 AbstractCegarLoop]: Abstraction has 81089 states and 254494 transitions. [2021-07-09 23:07:17,800 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 4.181818181818182) internal successors, (46), 10 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 23:07:17,800 INFO L276 IsEmpty]: Start isEmpty. Operand 81089 states and 254494 transitions. [2021-07-09 23:07:17,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-07-09 23:07:17,996 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 23:07:17,996 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 23:07:17,996 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-07-09 23:07:17,996 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-07-09 23:07:17,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 23:07:17,997 INFO L82 PathProgramCache]: Analyzing trace with hash -53216120, now seen corresponding path program 10 times [2021-07-09 23:07:17,997 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 23:07:17,997 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [150432596] [2021-07-09 23:07:17,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 23:07:18,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 23:07:18,017 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:07:18,017 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-09 23:07:18,019 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:07:18,020 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:07:18,023 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:07:18,023 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:07:18,028 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:07:18,028 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:07:18,029 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:07:18,029 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:07:18,029 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:07:18,030 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:07:18,035 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:07:18,035 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:07:18,043 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:07:18,043 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:07:18,044 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:07:18,044 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:07:18,053 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:07:18,053 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:07:18,059 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:07:18,059 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:07:18,065 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:07:18,065 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 23:07:18,065 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 23:07:18,065 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 23:07:18,066 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [150432596] [2021-07-09 23:07:18,066 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [150432596] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 23:07:18,066 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 23:07:18,066 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-07-09 23:07:18,066 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1786462300] [2021-07-09 23:07:18,066 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-07-09 23:07:18,066 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 23:07:18,067 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-07-09 23:07:18,067 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2021-07-09 23:07:18,067 INFO L87 Difference]: Start difference. First operand 81089 states and 254494 transitions. Second operand has 10 states, 10 states have (on average 4.6) internal successors, (46), 9 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 23:07:19,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 23:07:19,767 INFO L93 Difference]: Finished difference Result 152811 states and 467116 transitions. [2021-07-09 23:07:19,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-09 23:07:19,768 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.6) internal successors, (46), 9 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2021-07-09 23:07:19,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 23:07:20,487 INFO L225 Difference]: With dead ends: 152811 [2021-07-09 23:07:20,488 INFO L226 Difference]: Without dead ends: 149833 [2021-07-09 23:07:20,488 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 85.0ms TimeCoverageRelationStatistics Valid=82, Invalid=158, Unknown=0, NotChecked=0, Total=240 [2021-07-09 23:07:21,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149833 states. [2021-07-09 23:07:23,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149833 to 79617. [2021-07-09 23:07:23,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79617 states, 79616 states have (on average 3.129056973472669) internal successors, (249123), 79616 states have internal predecessors, (249123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 23:07:24,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79617 states to 79617 states and 249123 transitions. [2021-07-09 23:07:24,125 INFO L78 Accepts]: Start accepts. Automaton has 79617 states and 249123 transitions. Word has length 46 [2021-07-09 23:07:24,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 23:07:24,125 INFO L482 AbstractCegarLoop]: Abstraction has 79617 states and 249123 transitions. [2021-07-09 23:07:24,125 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 4.6) internal successors, (46), 9 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 23:07:24,125 INFO L276 IsEmpty]: Start isEmpty. Operand 79617 states and 249123 transitions. [2021-07-09 23:07:24,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-07-09 23:07:24,296 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 23:07:24,296 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 23:07:24,296 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-07-09 23:07:24,296 INFO L430 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-07-09 23:07:24,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 23:07:24,297 INFO L82 PathProgramCache]: Analyzing trace with hash 1587996838, now seen corresponding path program 11 times [2021-07-09 23:07:24,297 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 23:07:24,297 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1298252861] [2021-07-09 23:07:24,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 23:07:24,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 23:07:24,319 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:07:24,319 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-09 23:07:24,322 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:07:24,322 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:07:24,325 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:07:24,325 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:07:24,330 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:07:24,330 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:07:24,331 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:07:24,331 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:07:24,331 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:07:24,332 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:07:24,336 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:07:24,336 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:07:24,341 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:07:24,341 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:07:24,348 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:07:24,348 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:07:24,354 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:07:24,354 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:07:24,361 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:07:24,362 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:07:24,370 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:07:24,371 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 23:07:24,371 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 23:07:24,371 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 23:07:24,371 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1298252861] [2021-07-09 23:07:24,371 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1298252861] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 23:07:24,371 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 23:07:24,371 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-07-09 23:07:24,372 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1795874820] [2021-07-09 23:07:24,372 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-07-09 23:07:24,372 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 23:07:24,372 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-07-09 23:07:24,372 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2021-07-09 23:07:24,373 INFO L87 Difference]: Start difference. First operand 79617 states and 249123 transitions. Second operand has 11 states, 11 states have (on average 4.181818181818182) internal successors, (46), 10 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 23:07:26,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 23:07:26,166 INFO L93 Difference]: Finished difference Result 154429 states and 469106 transitions. [2021-07-09 23:07:26,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 23:07:26,166 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.181818181818182) internal successors, (46), 10 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2021-07-09 23:07:26,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 23:07:27,083 INFO L225 Difference]: With dead ends: 154429 [2021-07-09 23:07:27,083 INFO L226 Difference]: Without dead ends: 150158 [2021-07-09 23:07:27,083 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 119.5ms TimeCoverageRelationStatistics Valid=141, Invalid=279, Unknown=0, NotChecked=0, Total=420 [2021-07-09 23:07:27,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150158 states. [2021-07-09 23:07:29,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150158 to 79870. [2021-07-09 23:07:29,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79870 states, 79869 states have (on average 3.11828118544116) internal successors, (249054), 79869 states have internal predecessors, (249054), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 23:07:30,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79870 states to 79870 states and 249054 transitions. [2021-07-09 23:07:30,249 INFO L78 Accepts]: Start accepts. Automaton has 79870 states and 249054 transitions. Word has length 46 [2021-07-09 23:07:30,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 23:07:30,249 INFO L482 AbstractCegarLoop]: Abstraction has 79870 states and 249054 transitions. [2021-07-09 23:07:30,249 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 4.181818181818182) internal successors, (46), 10 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 23:07:30,249 INFO L276 IsEmpty]: Start isEmpty. Operand 79870 states and 249054 transitions. [2021-07-09 23:07:30,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-07-09 23:07:30,827 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 23:07:30,827 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 23:07:30,827 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-07-09 23:07:30,827 INFO L430 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-07-09 23:07:30,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 23:07:30,828 INFO L82 PathProgramCache]: Analyzing trace with hash 1796307626, now seen corresponding path program 12 times [2021-07-09 23:07:30,828 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 23:07:30,833 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2078859027] [2021-07-09 23:07:30,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 23:07:30,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 23:07:30,863 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:07:30,863 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-09 23:07:30,867 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:07:30,867 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:07:30,870 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:07:30,870 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:07:30,874 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:07:30,874 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:07:30,875 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:07:30,875 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:07:30,876 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:07:30,877 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:07:30,881 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:07:30,881 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:07:30,886 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:07:30,886 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:07:30,887 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:07:30,887 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:07:30,891 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:07:30,891 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:07:30,896 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:07:30,897 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:07:30,902 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:07:30,902 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 23:07:30,903 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 23:07:30,903 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 23:07:30,903 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2078859027] [2021-07-09 23:07:30,903 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2078859027] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 23:07:30,903 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 23:07:30,903 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-07-09 23:07:30,903 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1423169354] [2021-07-09 23:07:30,903 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-07-09 23:07:30,903 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 23:07:30,904 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-07-09 23:07:30,904 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2021-07-09 23:07:30,904 INFO L87 Difference]: Start difference. First operand 79870 states and 249054 transitions. Second operand has 10 states, 10 states have (on average 4.6) internal successors, (46), 9 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 23:07:32,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 23:07:32,546 INFO L93 Difference]: Finished difference Result 154983 states and 475200 transitions. [2021-07-09 23:07:32,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-09 23:07:32,546 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.6) internal successors, (46), 9 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2021-07-09 23:07:32,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 23:07:33,748 INFO L225 Difference]: With dead ends: 154983 [2021-07-09 23:07:33,749 INFO L226 Difference]: Without dead ends: 154215 [2021-07-09 23:07:33,749 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 69.9ms TimeCoverageRelationStatistics Valid=82, Invalid=158, Unknown=0, NotChecked=0, Total=240 [2021-07-09 23:07:34,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154215 states. [2021-07-09 23:07:36,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154215 to 78092. [2021-07-09 23:07:36,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78092 states, 78091 states have (on average 3.112778681282094) internal successors, (243080), 78091 states have internal predecessors, (243080), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 23:07:37,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78092 states to 78092 states and 243080 transitions. [2021-07-09 23:07:37,147 INFO L78 Accepts]: Start accepts. Automaton has 78092 states and 243080 transitions. Word has length 46 [2021-07-09 23:07:37,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 23:07:37,147 INFO L482 AbstractCegarLoop]: Abstraction has 78092 states and 243080 transitions. [2021-07-09 23:07:37,147 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 4.6) internal successors, (46), 9 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 23:07:37,147 INFO L276 IsEmpty]: Start isEmpty. Operand 78092 states and 243080 transitions. [2021-07-09 23:07:37,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-07-09 23:07:37,783 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 23:07:37,784 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 23:07:37,784 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-07-09 23:07:37,784 INFO L430 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-07-09 23:07:37,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 23:07:37,784 INFO L82 PathProgramCache]: Analyzing trace with hash 294200712, now seen corresponding path program 13 times [2021-07-09 23:07:37,784 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 23:07:37,784 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [592055324] [2021-07-09 23:07:37,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 23:07:37,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 23:07:37,802 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:07:37,802 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-09 23:07:37,804 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:07:37,805 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:07:37,808 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:07:37,808 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:07:37,812 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:07:37,812 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:07:37,812 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:07:37,812 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:07:37,813 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:07:37,813 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:07:37,818 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:07:37,818 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:07:37,823 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:07:37,823 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:07:37,828 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:07:37,829 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:07:37,835 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:07:37,835 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:07:37,842 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:07:37,842 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:07:37,850 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:07:37,850 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 23:07:37,850 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 23:07:37,850 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 23:07:37,850 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [592055324] [2021-07-09 23:07:37,850 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [592055324] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 23:07:37,851 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 23:07:37,851 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-07-09 23:07:37,851 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [603895157] [2021-07-09 23:07:37,851 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-07-09 23:07:37,851 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 23:07:37,851 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-07-09 23:07:37,851 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2021-07-09 23:07:37,852 INFO L87 Difference]: Start difference. First operand 78092 states and 243080 transitions. Second operand has 11 states, 11 states have (on average 4.181818181818182) internal successors, (46), 10 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 23:07:39,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 23:07:39,300 INFO L93 Difference]: Finished difference Result 156927 states and 479942 transitions. [2021-07-09 23:07:39,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 23:07:39,300 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.181818181818182) internal successors, (46), 10 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2021-07-09 23:07:39,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 23:07:40,282 INFO L225 Difference]: With dead ends: 156927 [2021-07-09 23:07:40,282 INFO L226 Difference]: Without dead ends: 155764 [2021-07-09 23:07:40,283 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 101.5ms TimeCoverageRelationStatistics Valid=141, Invalid=279, Unknown=0, NotChecked=0, Total=420 [2021-07-09 23:07:41,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155764 states. [2021-07-09 23:07:43,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155764 to 80656. [2021-07-09 23:07:43,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80656 states, 80655 states have (on average 3.108114809993181) internal successors, (250685), 80655 states have internal predecessors, (250685), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 23:07:44,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80656 states to 80656 states and 250685 transitions. [2021-07-09 23:07:44,045 INFO L78 Accepts]: Start accepts. Automaton has 80656 states and 250685 transitions. Word has length 46 [2021-07-09 23:07:44,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 23:07:44,045 INFO L482 AbstractCegarLoop]: Abstraction has 80656 states and 250685 transitions. [2021-07-09 23:07:44,045 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 4.181818181818182) internal successors, (46), 10 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 23:07:44,045 INFO L276 IsEmpty]: Start isEmpty. Operand 80656 states and 250685 transitions. [2021-07-09 23:07:44,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-07-09 23:07:44,231 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 23:07:44,231 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 23:07:44,231 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-07-09 23:07:44,231 INFO L430 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-07-09 23:07:44,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 23:07:44,231 INFO L82 PathProgramCache]: Analyzing trace with hash -1377028862, now seen corresponding path program 14 times [2021-07-09 23:07:44,232 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 23:07:44,232 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1296360252] [2021-07-09 23:07:44,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 23:07:44,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 23:07:44,261 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:07:44,269 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-09 23:07:44,272 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:07:44,272 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:07:44,275 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:07:44,276 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:07:44,280 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:07:44,280 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:07:44,280 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:07:44,280 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-09 23:07:44,284 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:07:44,285 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:07:44,285 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:07:44,285 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:07:44,290 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:07:44,290 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 23:07:44,290 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 23:07:44,290 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 23:07:44,290 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1296360252] [2021-07-09 23:07:44,291 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1296360252] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 23:07:44,291 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 23:07:44,291 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-07-09 23:07:44,291 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [774038335] [2021-07-09 23:07:44,291 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-07-09 23:07:44,291 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 23:07:44,291 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-07-09 23:07:44,291 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-07-09 23:07:44,291 INFO L87 Difference]: Start difference. First operand 80656 states and 250685 transitions. Second operand has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 6 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 23:07:45,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 23:07:45,853 INFO L93 Difference]: Finished difference Result 165417 states and 504444 transitions. [2021-07-09 23:07:45,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-09 23:07:45,854 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 6 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2021-07-09 23:07:45,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 23:07:46,578 INFO L225 Difference]: With dead ends: 165417 [2021-07-09 23:07:46,578 INFO L226 Difference]: Without dead ends: 165417 [2021-07-09 23:07:46,578 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 20.7ms TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2021-07-09 23:07:47,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165417 states. [2021-07-09 23:07:49,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165417 to 79912. [2021-07-09 23:07:50,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79912 states, 79911 states have (on average 3.089086608852348) internal successors, (246852), 79911 states have internal predecessors, (246852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 23:07:50,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79912 states to 79912 states and 246852 transitions. [2021-07-09 23:07:50,333 INFO L78 Accepts]: Start accepts. Automaton has 79912 states and 246852 transitions. Word has length 46 [2021-07-09 23:07:50,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 23:07:50,333 INFO L482 AbstractCegarLoop]: Abstraction has 79912 states and 246852 transitions. [2021-07-09 23:07:50,333 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 6 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 23:07:50,334 INFO L276 IsEmpty]: Start isEmpty. Operand 79912 states and 246852 transitions. [2021-07-09 23:07:50,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-07-09 23:07:50,510 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 23:07:50,510 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 23:07:50,510 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-07-09 23:07:50,510 INFO L430 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-07-09 23:07:50,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 23:07:50,511 INFO L82 PathProgramCache]: Analyzing trace with hash 959611590, now seen corresponding path program 15 times [2021-07-09 23:07:50,511 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 23:07:50,511 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1296407065] [2021-07-09 23:07:50,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 23:07:50,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 23:07:50,531 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:07:50,531 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-09 23:07:50,533 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:07:50,533 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:07:50,536 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:07:50,537 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:07:50,540 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:07:50,541 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:07:50,541 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:07:50,541 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-09 23:07:50,545 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:07:50,545 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:07:50,545 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:07:50,545 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:07:50,546 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:07:50,546 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:07:50,550 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:07:50,551 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:07:50,555 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:07:50,556 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:07:50,561 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:07:50,562 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:07:50,570 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:07:50,570 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 23:07:50,571 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 23:07:50,571 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 23:07:50,571 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1296407065] [2021-07-09 23:07:50,571 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1296407065] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 23:07:50,571 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 23:07:50,571 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-07-09 23:07:50,571 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [591110716] [2021-07-09 23:07:50,572 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-07-09 23:07:50,572 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 23:07:50,572 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-07-09 23:07:50,572 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2021-07-09 23:07:50,572 INFO L87 Difference]: Start difference. First operand 79912 states and 246852 transitions. Second operand has 10 states, 10 states have (on average 4.6) internal successors, (46), 9 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 23:07:52,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 23:07:52,327 INFO L93 Difference]: Finished difference Result 173347 states and 522080 transitions. [2021-07-09 23:07:52,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-09 23:07:52,328 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.6) internal successors, (46), 9 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2021-07-09 23:07:52,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 23:07:53,390 INFO L225 Difference]: With dead ends: 173347 [2021-07-09 23:07:53,390 INFO L226 Difference]: Without dead ends: 173123 [2021-07-09 23:07:53,390 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 64.4ms TimeCoverageRelationStatistics Valid=83, Invalid=157, Unknown=0, NotChecked=0, Total=240 [2021-07-09 23:07:54,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173123 states. [2021-07-09 23:07:56,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173123 to 79075. [2021-07-09 23:07:56,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79075 states, 79074 states have (on average 3.069782735159471) internal successors, (242740), 79074 states have internal predecessors, (242740), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 23:07:57,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79075 states to 79075 states and 242740 transitions. [2021-07-09 23:07:57,146 INFO L78 Accepts]: Start accepts. Automaton has 79075 states and 242740 transitions. Word has length 46 [2021-07-09 23:07:57,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 23:07:57,146 INFO L482 AbstractCegarLoop]: Abstraction has 79075 states and 242740 transitions. [2021-07-09 23:07:57,147 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 4.6) internal successors, (46), 9 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 23:07:57,147 INFO L276 IsEmpty]: Start isEmpty. Operand 79075 states and 242740 transitions. [2021-07-09 23:07:57,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-07-09 23:07:57,333 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 23:07:57,334 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 23:07:57,334 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-07-09 23:07:57,334 INFO L430 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-07-09 23:07:57,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 23:07:57,334 INFO L82 PathProgramCache]: Analyzing trace with hash -1054127036, now seen corresponding path program 16 times [2021-07-09 23:07:57,334 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 23:07:57,334 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [812200932] [2021-07-09 23:07:57,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 23:07:57,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 23:07:57,357 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:07:57,357 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-09 23:07:57,359 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:07:57,359 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:07:57,362 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:07:57,362 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:07:57,365 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:07:57,366 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:07:57,366 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:07:57,366 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-09 23:07:57,369 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:07:57,369 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:07:57,370 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:07:57,370 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:07:57,370 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:07:57,370 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:07:57,374 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:07:57,375 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:07:57,379 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:07:57,379 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 23:07:57,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 23:07:57,380 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 23:07:57,380 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [812200932] [2021-07-09 23:07:57,380 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [812200932] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 23:07:57,380 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 23:07:57,380 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-07-09 23:07:57,380 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1732464230] [2021-07-09 23:07:57,380 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-07-09 23:07:57,380 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 23:07:57,381 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-07-09 23:07:57,381 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-07-09 23:07:57,381 INFO L87 Difference]: Start difference. First operand 79075 states and 242740 transitions. Second operand has 8 states, 8 states have (on average 5.75) internal successors, (46), 7 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 23:07:58,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 23:07:58,959 INFO L93 Difference]: Finished difference Result 168892 states and 500363 transitions. [2021-07-09 23:07:58,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-09 23:07:58,959 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.75) internal successors, (46), 7 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2021-07-09 23:07:58,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 23:07:59,674 INFO L225 Difference]: With dead ends: 168892 [2021-07-09 23:07:59,675 INFO L226 Difference]: Without dead ends: 167956 [2021-07-09 23:07:59,675 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 34.1ms TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-07-09 23:08:00,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167956 states. [2021-07-09 23:08:02,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167956 to 77500. [2021-07-09 23:08:02,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77500 states, 77499 states have (on average 3.038981148143847) internal successors, (235518), 77499 states have internal predecessors, (235518), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 23:08:03,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77500 states to 77500 states and 235518 transitions. [2021-07-09 23:08:03,459 INFO L78 Accepts]: Start accepts. Automaton has 77500 states and 235518 transitions. Word has length 46 [2021-07-09 23:08:03,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 23:08:03,459 INFO L482 AbstractCegarLoop]: Abstraction has 77500 states and 235518 transitions. [2021-07-09 23:08:03,459 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 5.75) internal successors, (46), 7 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 23:08:03,459 INFO L276 IsEmpty]: Start isEmpty. Operand 77500 states and 235518 transitions. [2021-07-09 23:08:03,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-07-09 23:08:03,642 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 23:08:03,642 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 23:08:03,642 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-07-09 23:08:03,642 INFO L430 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-07-09 23:08:03,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 23:08:03,642 INFO L82 PathProgramCache]: Analyzing trace with hash -1330750234, now seen corresponding path program 17 times [2021-07-09 23:08:03,642 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 23:08:03,642 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [870307975] [2021-07-09 23:08:03,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 23:08:03,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 23:08:03,664 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:08:03,665 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-09 23:08:03,667 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:08:03,667 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:08:03,670 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:08:03,670 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:08:03,674 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:08:03,674 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:08:03,674 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:08:03,675 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-09 23:08:03,678 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:08:03,678 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:08:03,679 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:08:03,680 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:08:03,680 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:08:03,680 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:08:03,684 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:08:03,685 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:08:03,689 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:08:03,690 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:08:03,695 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:08:03,695 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:08:03,701 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:08:03,701 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 23:08:03,701 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 23:08:03,701 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 23:08:03,701 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [870307975] [2021-07-09 23:08:03,701 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [870307975] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 23:08:03,701 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 23:08:03,702 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-07-09 23:08:03,702 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [124017129] [2021-07-09 23:08:03,702 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-07-09 23:08:03,702 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 23:08:03,702 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-07-09 23:08:03,702 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2021-07-09 23:08:03,703 INFO L87 Difference]: Start difference. First operand 77500 states and 235518 transitions. Second operand has 10 states, 10 states have (on average 4.6) internal successors, (46), 9 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 23:08:05,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 23:08:05,616 INFO L93 Difference]: Finished difference Result 163656 states and 482961 transitions. [2021-07-09 23:08:05,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-09 23:08:05,617 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.6) internal successors, (46), 9 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2021-07-09 23:08:05,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 23:08:06,690 INFO L225 Difference]: With dead ends: 163656 [2021-07-09 23:08:06,690 INFO L226 Difference]: Without dead ends: 160270 [2021-07-09 23:08:06,690 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 68.5ms TimeCoverageRelationStatistics Valid=83, Invalid=157, Unknown=0, NotChecked=0, Total=240 [2021-07-09 23:08:07,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160270 states. [2021-07-09 23:08:09,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160270 to 75558. [2021-07-09 23:08:09,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75558 states, 75557 states have (on average 3.0353772648464075) internal successors, (229344), 75557 states have internal predecessors, (229344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 23:08:10,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75558 states to 75558 states and 229344 transitions. [2021-07-09 23:08:10,448 INFO L78 Accepts]: Start accepts. Automaton has 75558 states and 229344 transitions. Word has length 46 [2021-07-09 23:08:10,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 23:08:10,448 INFO L482 AbstractCegarLoop]: Abstraction has 75558 states and 229344 transitions. [2021-07-09 23:08:10,448 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 4.6) internal successors, (46), 9 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 23:08:10,448 INFO L276 IsEmpty]: Start isEmpty. Operand 75558 states and 229344 transitions. [2021-07-09 23:08:10,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-07-09 23:08:10,641 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 23:08:10,641 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 23:08:10,641 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-07-09 23:08:10,641 INFO L430 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-07-09 23:08:10,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 23:08:10,642 INFO L82 PathProgramCache]: Analyzing trace with hash -559172742, now seen corresponding path program 18 times [2021-07-09 23:08:10,642 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 23:08:10,642 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [211698236] [2021-07-09 23:08:10,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 23:08:10,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 23:08:10,656 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:08:10,657 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-09 23:08:10,659 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:08:10,659 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:08:10,662 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:08:10,662 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:08:10,666 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:08:10,666 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:08:10,666 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:08:10,667 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-09 23:08:10,670 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:08:10,670 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:08:10,671 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:08:10,671 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:08:10,671 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:08:10,672 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:08:10,686 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:08:10,686 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:08:10,691 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:08:10,691 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 23:08:10,692 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 23:08:10,692 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 23:08:10,692 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [211698236] [2021-07-09 23:08:10,692 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [211698236] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 23:08:10,692 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 23:08:10,692 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-07-09 23:08:10,692 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1029251133] [2021-07-09 23:08:10,692 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-07-09 23:08:10,693 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 23:08:10,693 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-07-09 23:08:10,693 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-07-09 23:08:10,693 INFO L87 Difference]: Start difference. First operand 75558 states and 229344 transitions. Second operand has 8 states, 8 states have (on average 5.75) internal successors, (46), 7 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 23:08:12,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 23:08:12,375 INFO L93 Difference]: Finished difference Result 170124 states and 506628 transitions. [2021-07-09 23:08:12,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-09 23:08:12,375 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.75) internal successors, (46), 7 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2021-07-09 23:08:12,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 23:08:13,108 INFO L225 Difference]: With dead ends: 170124 [2021-07-09 23:08:13,109 INFO L226 Difference]: Without dead ends: 169900 [2021-07-09 23:08:13,109 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 42.8ms TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-07-09 23:08:14,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169900 states. [2021-07-09 23:08:16,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169900 to 75416. [2021-07-09 23:08:16,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75416 states, 75415 states have (on average 3.028919976132069) internal successors, (228426), 75415 states have internal predecessors, (228426), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 23:08:16,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75416 states to 75416 states and 228426 transitions. [2021-07-09 23:08:16,918 INFO L78 Accepts]: Start accepts. Automaton has 75416 states and 228426 transitions. Word has length 46 [2021-07-09 23:08:16,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 23:08:16,918 INFO L482 AbstractCegarLoop]: Abstraction has 75416 states and 228426 transitions. [2021-07-09 23:08:16,918 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 5.75) internal successors, (46), 7 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 23:08:16,918 INFO L276 IsEmpty]: Start isEmpty. Operand 75416 states and 228426 transitions. [2021-07-09 23:08:17,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-07-09 23:08:17,098 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 23:08:17,098 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 23:08:17,098 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-07-09 23:08:17,098 INFO L430 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-07-09 23:08:17,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 23:08:17,098 INFO L82 PathProgramCache]: Analyzing trace with hash -812719672, now seen corresponding path program 19 times [2021-07-09 23:08:17,098 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 23:08:17,099 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1597504213] [2021-07-09 23:08:17,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 23:08:17,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 23:08:17,115 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:08:17,115 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-09 23:08:17,117 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:08:17,117 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:08:17,121 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:08:17,121 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:08:17,125 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:08:17,126 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:08:17,126 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:08:17,126 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-09 23:08:17,130 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:08:17,130 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:08:17,131 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:08:17,131 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:08:17,131 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:08:17,131 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:08:17,136 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:08:17,136 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:08:17,141 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:08:17,141 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:08:17,147 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:08:17,147 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:08:17,154 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:08:17,154 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 23:08:17,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 23:08:17,155 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 23:08:17,155 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1597504213] [2021-07-09 23:08:17,155 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1597504213] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 23:08:17,155 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 23:08:17,155 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-07-09 23:08:17,155 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312487258] [2021-07-09 23:08:17,155 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-07-09 23:08:17,156 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 23:08:17,156 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-07-09 23:08:17,156 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2021-07-09 23:08:17,156 INFO L87 Difference]: Start difference. First operand 75416 states and 228426 transitions. Second operand has 10 states, 10 states have (on average 4.6) internal successors, (46), 9 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 23:08:19,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 23:08:19,086 INFO L93 Difference]: Finished difference Result 163513 states and 487326 transitions. [2021-07-09 23:08:19,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-09 23:08:19,087 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.6) internal successors, (46), 9 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2021-07-09 23:08:19,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 23:08:19,789 INFO L225 Difference]: With dead ends: 163513 [2021-07-09 23:08:19,789 INFO L226 Difference]: Without dead ends: 162630 [2021-07-09 23:08:19,789 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 71.6ms TimeCoverageRelationStatistics Valid=83, Invalid=157, Unknown=0, NotChecked=0, Total=240 [2021-07-09 23:08:20,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162630 states. [2021-07-09 23:08:22,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162630 to 73667. [2021-07-09 23:08:22,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73667 states, 73666 states have (on average 3.0383487633372246) internal successors, (223823), 73666 states have internal predecessors, (223823), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 23:08:23,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73667 states to 73667 states and 223823 transitions. [2021-07-09 23:08:23,556 INFO L78 Accepts]: Start accepts. Automaton has 73667 states and 223823 transitions. Word has length 46 [2021-07-09 23:08:23,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 23:08:23,556 INFO L482 AbstractCegarLoop]: Abstraction has 73667 states and 223823 transitions. [2021-07-09 23:08:23,557 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 4.6) internal successors, (46), 9 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 23:08:23,557 INFO L276 IsEmpty]: Start isEmpty. Operand 73667 states and 223823 transitions. [2021-07-09 23:08:23,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-07-09 23:08:23,736 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 23:08:23,736 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 23:08:23,736 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-07-09 23:08:23,736 INFO L430 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-07-09 23:08:23,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 23:08:23,736 INFO L82 PathProgramCache]: Analyzing trace with hash -765028150, now seen corresponding path program 20 times [2021-07-09 23:08:23,737 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 23:08:23,737 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [803413762] [2021-07-09 23:08:23,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 23:08:23,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 23:08:23,758 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:08:23,758 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-09 23:08:23,765 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:08:23,766 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:08:23,769 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:08:23,769 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:08:23,773 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:08:23,773 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 23:08:23,774 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 23:08:23,774 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 23:08:23,774 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [803413762] [2021-07-09 23:08:23,774 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [803413762] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 23:08:23,774 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 23:08:23,774 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-07-09 23:08:23,774 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1296093475] [2021-07-09 23:08:23,774 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-07-09 23:08:23,774 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 23:08:23,775 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-07-09 23:08:23,775 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-07-09 23:08:23,775 INFO L87 Difference]: Start difference. First operand 73667 states and 223823 transitions. Second operand has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 23:08:24,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 23:08:24,808 INFO L93 Difference]: Finished difference Result 63257 states and 189169 transitions. [2021-07-09 23:08:24,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-09 23:08:24,808 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2021-07-09 23:08:24,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 23:08:25,020 INFO L225 Difference]: With dead ends: 63257 [2021-07-09 23:08:25,020 INFO L226 Difference]: Without dead ends: 63257 [2021-07-09 23:08:25,020 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 16.8ms TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-07-09 23:08:25,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63257 states. [2021-07-09 23:08:26,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63257 to 63065. [2021-07-09 23:08:26,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63065 states, 63064 states have (on average 2.9965907649372068) internal successors, (188977), 63064 states have internal predecessors, (188977), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 23:08:26,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63065 states to 63065 states and 188977 transitions. [2021-07-09 23:08:26,780 INFO L78 Accepts]: Start accepts. Automaton has 63065 states and 188977 transitions. Word has length 46 [2021-07-09 23:08:26,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 23:08:26,780 INFO L482 AbstractCegarLoop]: Abstraction has 63065 states and 188977 transitions. [2021-07-09 23:08:26,780 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 23:08:26,780 INFO L276 IsEmpty]: Start isEmpty. Operand 63065 states and 188977 transitions. [2021-07-09 23:08:26,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-07-09 23:08:26,928 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 23:08:26,928 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 23:08:26,928 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-07-09 23:08:26,929 INFO L430 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-07-09 23:08:26,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 23:08:26,929 INFO L82 PathProgramCache]: Analyzing trace with hash 1244514152, now seen corresponding path program 21 times [2021-07-09 23:08:26,929 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 23:08:26,929 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1458817424] [2021-07-09 23:08:26,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 23:08:26,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 23:08:26,947 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:08:26,948 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-09 23:08:26,950 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:08:26,950 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:08:26,954 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:08:26,957 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:08:26,961 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:08:26,962 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:08:26,966 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:08:26,966 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:08:27,326 WARN L205 SmtUtils]: Spent 355.00 ms on a formula simplification that was a NOOP. DAG size: 5 [2021-07-09 23:08:27,329 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:08:27,329 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:08:27,336 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:08:27,336 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:08:27,337 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:08:27,337 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:08:27,337 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:08:27,337 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:08:27,349 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:08:27,350 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:08:27,367 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:08:27,368 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:08:27,380 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:08:27,381 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 23:08:27,381 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 23:08:27,381 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 23:08:27,381 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1458817424] [2021-07-09 23:08:27,381 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1458817424] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 23:08:27,381 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 23:08:27,381 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-07-09 23:08:27,381 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2005218055] [2021-07-09 23:08:27,388 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-07-09 23:08:27,389 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 23:08:27,389 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-07-09 23:08:27,389 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2021-07-09 23:08:27,389 INFO L87 Difference]: Start difference. First operand 63065 states and 188977 transitions. Second operand has 11 states, 11 states have (on average 4.181818181818182) internal successors, (46), 10 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 23:08:28,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 23:08:28,740 INFO L93 Difference]: Finished difference Result 123735 states and 362144 transitions. [2021-07-09 23:08:28,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 23:08:28,740 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.181818181818182) internal successors, (46), 10 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2021-07-09 23:08:28,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 23:08:29,220 INFO L225 Difference]: With dead ends: 123735 [2021-07-09 23:08:29,220 INFO L226 Difference]: Without dead ends: 123371 [2021-07-09 23:08:29,220 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 488.7ms TimeCoverageRelationStatistics Valid=132, Invalid=248, Unknown=0, NotChecked=0, Total=380 [2021-07-09 23:08:29,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123371 states. [2021-07-09 23:08:31,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123371 to 63013. [2021-07-09 23:08:31,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63013 states, 63012 states have (on average 2.9941122325906178) internal successors, (188665), 63012 states have internal predecessors, (188665), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 23:08:32,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63013 states to 63013 states and 188665 transitions. [2021-07-09 23:08:32,026 INFO L78 Accepts]: Start accepts. Automaton has 63013 states and 188665 transitions. Word has length 46 [2021-07-09 23:08:32,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 23:08:32,026 INFO L482 AbstractCegarLoop]: Abstraction has 63013 states and 188665 transitions. [2021-07-09 23:08:32,026 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 4.181818181818182) internal successors, (46), 10 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 23:08:32,026 INFO L276 IsEmpty]: Start isEmpty. Operand 63013 states and 188665 transitions. [2021-07-09 23:08:32,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-07-09 23:08:32,159 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 23:08:32,159 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 23:08:32,160 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-07-09 23:08:32,160 INFO L430 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-07-09 23:08:32,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 23:08:32,160 INFO L82 PathProgramCache]: Analyzing trace with hash -1686374522, now seen corresponding path program 22 times [2021-07-09 23:08:32,160 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 23:08:32,160 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1236163025] [2021-07-09 23:08:32,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 23:08:32,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 23:08:32,181 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:08:32,182 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-09 23:08:32,184 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:08:32,184 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:08:32,187 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:08:32,188 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:08:32,192 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:08:32,192 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:08:32,198 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:08:32,198 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:08:32,205 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:08:32,206 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:08:32,213 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:08:32,213 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:08:32,214 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:08:32,214 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:08:32,220 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:08:32,221 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:08:32,228 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:08:32,228 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:08:32,235 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:08:32,236 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:08:32,242 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:08:32,242 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 23:08:32,243 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 23:08:32,243 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 23:08:32,243 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1236163025] [2021-07-09 23:08:32,243 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1236163025] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 23:08:32,243 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 23:08:32,243 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-07-09 23:08:32,243 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1385019155] [2021-07-09 23:08:32,243 INFO L462 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-07-09 23:08:32,243 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 23:08:32,244 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-07-09 23:08:32,244 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2021-07-09 23:08:32,244 INFO L87 Difference]: Start difference. First operand 63013 states and 188665 transitions. Second operand has 12 states, 12 states have (on average 3.8333333333333335) internal successors, (46), 11 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 23:08:34,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 23:08:34,006 INFO L93 Difference]: Finished difference Result 119129 states and 349458 transitions. [2021-07-09 23:08:34,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-09 23:08:34,008 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.8333333333333335) internal successors, (46), 11 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2021-07-09 23:08:34,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 23:08:34,470 INFO L225 Difference]: With dead ends: 119129 [2021-07-09 23:08:34,470 INFO L226 Difference]: Without dead ends: 118399 [2021-07-09 23:08:34,470 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 128.1ms TimeCoverageRelationStatistics Valid=157, Invalid=305, Unknown=0, NotChecked=0, Total=462 [2021-07-09 23:08:35,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118399 states. [2021-07-09 23:08:36,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118399 to 62435. [2021-07-09 23:08:37,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62435 states, 62434 states have (on average 2.988900278694301) internal successors, (186609), 62434 states have internal predecessors, (186609), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 23:08:37,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62435 states to 62435 states and 186609 transitions. [2021-07-09 23:08:37,209 INFO L78 Accepts]: Start accepts. Automaton has 62435 states and 186609 transitions. Word has length 46 [2021-07-09 23:08:37,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 23:08:37,210 INFO L482 AbstractCegarLoop]: Abstraction has 62435 states and 186609 transitions. [2021-07-09 23:08:37,210 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 3.8333333333333335) internal successors, (46), 11 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 23:08:37,210 INFO L276 IsEmpty]: Start isEmpty. Operand 62435 states and 186609 transitions. [2021-07-09 23:08:37,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-07-09 23:08:37,347 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 23:08:37,348 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 23:08:37,348 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-07-09 23:08:37,348 INFO L430 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-07-09 23:08:37,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 23:08:37,348 INFO L82 PathProgramCache]: Analyzing trace with hash 1976413958, now seen corresponding path program 23 times [2021-07-09 23:08:37,348 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 23:08:37,348 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1627518457] [2021-07-09 23:08:37,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 23:08:37,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 23:08:37,380 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:08:37,381 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-09 23:08:37,383 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:08:37,383 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:08:37,387 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:08:37,387 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:08:37,391 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:08:37,391 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:08:37,395 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:08:37,396 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:08:37,400 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:08:37,401 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:08:37,406 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:08:37,407 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:08:37,412 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:08:37,412 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:08:37,418 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:08:37,418 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:08:37,425 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:08:37,425 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:08:37,437 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:08:37,437 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:08:37,446 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:08:37,447 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 23:08:37,447 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 23:08:37,447 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 23:08:37,447 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1627518457] [2021-07-09 23:08:37,447 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1627518457] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 23:08:37,447 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 23:08:37,447 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-07-09 23:08:37,448 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1694214830] [2021-07-09 23:08:37,448 INFO L462 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-07-09 23:08:37,448 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 23:08:37,449 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-07-09 23:08:37,449 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2021-07-09 23:08:37,449 INFO L87 Difference]: Start difference. First operand 62435 states and 186609 transitions. Second operand has 13 states, 13 states have (on average 3.5384615384615383) internal successors, (46), 12 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 23:08:39,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 23:08:39,099 INFO L93 Difference]: Finished difference Result 119611 states and 350057 transitions. [2021-07-09 23:08:39,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-07-09 23:08:39,100 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.5384615384615383) internal successors, (46), 12 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2021-07-09 23:08:39,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 23:08:39,951 INFO L225 Difference]: With dead ends: 119611 [2021-07-09 23:08:39,951 INFO L226 Difference]: Without dead ends: 118753 [2021-07-09 23:08:39,951 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 131 ImplicationChecksByTransitivity, 154.9ms TimeCoverageRelationStatistics Valid=253, Invalid=503, Unknown=0, NotChecked=0, Total=756 [2021-07-09 23:08:40,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118753 states. [2021-07-09 23:08:42,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118753 to 63289. [2021-07-09 23:08:42,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63289 states, 63288 states have (on average 2.98290355201618) internal successors, (188782), 63288 states have internal predecessors, (188782), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 23:08:42,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63289 states to 63289 states and 188782 transitions. [2021-07-09 23:08:42,412 INFO L78 Accepts]: Start accepts. Automaton has 63289 states and 188782 transitions. Word has length 46 [2021-07-09 23:08:42,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 23:08:42,412 INFO L482 AbstractCegarLoop]: Abstraction has 63289 states and 188782 transitions. [2021-07-09 23:08:42,412 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 3.5384615384615383) internal successors, (46), 12 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 23:08:42,412 INFO L276 IsEmpty]: Start isEmpty. Operand 63289 states and 188782 transitions. [2021-07-09 23:08:42,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-07-09 23:08:42,962 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 23:08:42,962 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 23:08:42,962 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-07-09 23:08:42,962 INFO L430 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-07-09 23:08:42,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 23:08:42,963 INFO L82 PathProgramCache]: Analyzing trace with hash 169104776, now seen corresponding path program 24 times [2021-07-09 23:08:42,963 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 23:08:42,963 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [779088290] [2021-07-09 23:08:42,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 23:08:42,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 23:08:42,985 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:08:42,992 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-09 23:08:42,994 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:08:42,994 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:08:42,997 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:08:42,997 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:08:43,001 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:08:43,001 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:08:43,006 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:08:43,007 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:08:43,012 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:08:43,012 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:08:43,022 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:08:43,028 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:08:43,029 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:08:43,029 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:08:43,029 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:08:43,030 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:08:43,034 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:08:43,035 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:08:43,040 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:08:43,041 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:08:43,047 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:08:43,047 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 23:08:43,047 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 23:08:43,047 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 23:08:43,047 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [779088290] [2021-07-09 23:08:43,047 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [779088290] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 23:08:43,047 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 23:08:43,048 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-07-09 23:08:43,048 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038467112] [2021-07-09 23:08:43,048 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-07-09 23:08:43,048 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 23:08:43,048 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-07-09 23:08:43,048 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2021-07-09 23:08:43,048 INFO L87 Difference]: Start difference. First operand 63289 states and 188782 transitions. Second operand has 11 states, 11 states have (on average 4.181818181818182) internal successors, (46), 10 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 23:08:44,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 23:08:44,390 INFO L93 Difference]: Finished difference Result 125338 states and 361402 transitions. [2021-07-09 23:08:44,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 23:08:44,391 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.181818181818182) internal successors, (46), 10 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2021-07-09 23:08:44,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 23:08:44,853 INFO L225 Difference]: With dead ends: 125338 [2021-07-09 23:08:44,854 INFO L226 Difference]: Without dead ends: 123362 [2021-07-09 23:08:44,854 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 96.9ms TimeCoverageRelationStatistics Valid=132, Invalid=248, Unknown=0, NotChecked=0, Total=380 [2021-07-09 23:08:45,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123362 states. [2021-07-09 23:08:47,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123362 to 63631. [2021-07-09 23:08:47,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63631 states, 63630 states have (on average 2.979082193933679) internal successors, (189559), 63630 states have internal predecessors, (189559), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 23:08:47,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63631 states to 63631 states and 189559 transitions. [2021-07-09 23:08:47,496 INFO L78 Accepts]: Start accepts. Automaton has 63631 states and 189559 transitions. Word has length 46 [2021-07-09 23:08:47,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 23:08:47,496 INFO L482 AbstractCegarLoop]: Abstraction has 63631 states and 189559 transitions. [2021-07-09 23:08:47,497 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 4.181818181818182) internal successors, (46), 10 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 23:08:47,497 INFO L276 IsEmpty]: Start isEmpty. Operand 63631 states and 189559 transitions. [2021-07-09 23:08:47,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-07-09 23:08:47,988 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 23:08:47,988 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 23:08:47,988 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-07-09 23:08:48,004 INFO L430 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-07-09 23:08:48,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 23:08:48,005 INFO L82 PathProgramCache]: Analyzing trace with hash 1810317734, now seen corresponding path program 25 times [2021-07-09 23:08:48,005 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 23:08:48,005 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [145627984] [2021-07-09 23:08:48,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 23:08:48,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 23:08:48,035 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:08:48,036 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-09 23:08:48,038 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:08:48,038 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:08:48,041 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:08:48,041 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:08:48,046 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:08:48,046 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:08:48,050 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:08:48,051 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:08:48,056 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:08:48,057 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:08:48,063 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:08:48,063 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:08:48,063 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:08:48,063 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:08:48,069 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:08:48,069 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:08:48,076 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:08:48,076 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:08:48,089 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:08:48,090 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:08:48,099 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:08:48,099 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 23:08:48,100 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 23:08:48,100 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 23:08:48,100 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [145627984] [2021-07-09 23:08:48,100 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [145627984] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 23:08:48,100 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 23:08:48,100 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-07-09 23:08:48,101 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [221051920] [2021-07-09 23:08:48,101 INFO L462 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-07-09 23:08:48,101 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 23:08:48,101 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-07-09 23:08:48,101 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2021-07-09 23:08:48,102 INFO L87 Difference]: Start difference. First operand 63631 states and 189559 transitions. Second operand has 12 states, 12 states have (on average 3.8333333333333335) internal successors, (46), 11 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 23:08:49,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 23:08:49,466 INFO L93 Difference]: Finished difference Result 122752 states and 354024 transitions. [2021-07-09 23:08:49,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-09 23:08:49,466 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.8333333333333335) internal successors, (46), 11 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2021-07-09 23:08:49,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 23:08:49,893 INFO L225 Difference]: With dead ends: 122752 [2021-07-09 23:08:49,893 INFO L226 Difference]: Without dead ends: 118856 [2021-07-09 23:08:49,893 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 138.9ms TimeCoverageRelationStatistics Valid=157, Invalid=305, Unknown=0, NotChecked=0, Total=462 [2021-07-09 23:08:50,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118856 states. [2021-07-09 23:08:52,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118856 to 63073. [2021-07-09 23:08:52,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63073 states, 63072 states have (on average 2.9773274987316083) internal successors, (187786), 63072 states have internal predecessors, (187786), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 23:08:52,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63073 states to 63073 states and 187786 transitions. [2021-07-09 23:08:52,546 INFO L78 Accepts]: Start accepts. Automaton has 63073 states and 187786 transitions. Word has length 46 [2021-07-09 23:08:52,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 23:08:52,547 INFO L482 AbstractCegarLoop]: Abstraction has 63073 states and 187786 transitions. [2021-07-09 23:08:52,547 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 3.8333333333333335) internal successors, (46), 11 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 23:08:52,547 INFO L276 IsEmpty]: Start isEmpty. Operand 63073 states and 187786 transitions. [2021-07-09 23:08:52,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-07-09 23:08:52,690 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 23:08:52,690 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 23:08:52,691 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-07-09 23:08:52,691 INFO L430 AbstractCegarLoop]: === Iteration 26 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-07-09 23:08:52,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 23:08:52,691 INFO L82 PathProgramCache]: Analyzing trace with hash -800755418, now seen corresponding path program 26 times [2021-07-09 23:08:52,691 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 23:08:52,691 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2049039470] [2021-07-09 23:08:52,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 23:08:52,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 23:08:52,705 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:08:52,705 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-09 23:08:52,711 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:08:52,711 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:08:52,714 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:08:52,714 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:08:52,718 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:08:52,719 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:08:52,723 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:08:52,723 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:08:52,728 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:08:52,728 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:08:52,734 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:08:52,735 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:08:52,740 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:08:52,740 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:08:52,746 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:08:52,747 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:08:52,753 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:08:52,754 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:08:52,761 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:08:52,762 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:08:52,770 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:08:52,770 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 23:08:52,771 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 23:08:52,771 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 23:08:52,771 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2049039470] [2021-07-09 23:08:52,771 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2049039470] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 23:08:52,771 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 23:08:52,771 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-07-09 23:08:52,771 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1286596357] [2021-07-09 23:08:52,772 INFO L462 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-07-09 23:08:52,772 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 23:08:52,772 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-07-09 23:08:52,772 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2021-07-09 23:08:52,772 INFO L87 Difference]: Start difference. First operand 63073 states and 187786 transitions. Second operand has 13 states, 13 states have (on average 3.5384615384615383) internal successors, (46), 12 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 23:08:53,336 WARN L205 SmtUtils]: Spent 407.00 ms on a formula simplification that was a NOOP. DAG size: 10 [2021-07-09 23:08:54,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 23:08:54,616 INFO L93 Difference]: Finished difference Result 122436 states and 352968 transitions. [2021-07-09 23:08:54,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-07-09 23:08:54,617 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.5384615384615383) internal successors, (46), 12 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2021-07-09 23:08:54,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 23:08:55,090 INFO L225 Difference]: With dead ends: 122436 [2021-07-09 23:08:55,091 INFO L226 Difference]: Without dead ends: 117985 [2021-07-09 23:08:55,091 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 131 ImplicationChecksByTransitivity, 596.2ms TimeCoverageRelationStatistics Valid=253, Invalid=503, Unknown=0, NotChecked=0, Total=756 [2021-07-09 23:08:55,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117985 states. [2021-07-09 23:08:57,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117985 to 62570. [2021-07-09 23:08:57,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62570 states, 62569 states have (on average 2.9792868672985025) internal successors, (186411), 62569 states have internal predecessors, (186411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 23:08:57,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62570 states to 62570 states and 186411 transitions. [2021-07-09 23:08:57,849 INFO L78 Accepts]: Start accepts. Automaton has 62570 states and 186411 transitions. Word has length 46 [2021-07-09 23:08:57,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 23:08:57,849 INFO L482 AbstractCegarLoop]: Abstraction has 62570 states and 186411 transitions. [2021-07-09 23:08:57,849 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 3.5384615384615383) internal successors, (46), 12 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 23:08:57,849 INFO L276 IsEmpty]: Start isEmpty. Operand 62570 states and 186411 transitions. [2021-07-09 23:08:57,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-07-09 23:08:57,981 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 23:08:57,981 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 23:08:57,981 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-07-09 23:08:57,981 INFO L430 AbstractCegarLoop]: === Iteration 27 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-07-09 23:08:57,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 23:08:57,982 INFO L82 PathProgramCache]: Analyzing trace with hash 1578358314, now seen corresponding path program 27 times [2021-07-09 23:08:57,982 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 23:08:57,982 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [511974600] [2021-07-09 23:08:57,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 23:08:57,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 23:08:57,996 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:08:57,996 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-09 23:08:57,998 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:08:57,999 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:08:58,002 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:08:58,002 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:08:58,006 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:08:58,006 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:08:58,010 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:08:58,011 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:08:58,015 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:08:58,015 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:08:58,021 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:08:58,021 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:08:58,023 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:08:58,023 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:08:58,023 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:08:58,023 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:08:58,029 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:08:58,029 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:08:58,035 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:08:58,035 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:08:58,041 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:08:58,041 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 23:08:58,042 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 23:08:58,042 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 23:08:58,042 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [511974600] [2021-07-09 23:08:58,042 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [511974600] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 23:08:58,042 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 23:08:58,042 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-07-09 23:08:58,042 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [946876168] [2021-07-09 23:08:58,042 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-07-09 23:08:58,042 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 23:08:58,043 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-07-09 23:08:58,043 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2021-07-09 23:08:58,043 INFO L87 Difference]: Start difference. First operand 62570 states and 186411 transitions. Second operand has 11 states, 11 states have (on average 4.181818181818182) internal successors, (46), 10 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 23:08:59,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 23:08:59,614 INFO L93 Difference]: Finished difference Result 124180 states and 362101 transitions. [2021-07-09 23:08:59,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 23:08:59,614 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.181818181818182) internal successors, (46), 10 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2021-07-09 23:08:59,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 23:09:00,126 INFO L225 Difference]: With dead ends: 124180 [2021-07-09 23:09:00,127 INFO L226 Difference]: Without dead ends: 123816 [2021-07-09 23:09:00,127 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 88.1ms TimeCoverageRelationStatistics Valid=132, Invalid=248, Unknown=0, NotChecked=0, Total=380 [2021-07-09 23:09:00,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123816 states. [2021-07-09 23:09:02,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123816 to 62518. [2021-07-09 23:09:02,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62518 states, 62517 states have (on average 2.976774317385671) internal successors, (186099), 62517 states have internal predecessors, (186099), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 23:09:02,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62518 states to 62518 states and 186099 transitions. [2021-07-09 23:09:02,986 INFO L78 Accepts]: Start accepts. Automaton has 62518 states and 186099 transitions. Word has length 46 [2021-07-09 23:09:02,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 23:09:02,986 INFO L482 AbstractCegarLoop]: Abstraction has 62518 states and 186099 transitions. [2021-07-09 23:09:02,986 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 4.181818181818182) internal successors, (46), 10 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 23:09:02,986 INFO L276 IsEmpty]: Start isEmpty. Operand 62518 states and 186099 transitions. [2021-07-09 23:09:03,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-07-09 23:09:03,122 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 23:09:03,122 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 23:09:03,122 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-07-09 23:09:03,122 INFO L430 AbstractCegarLoop]: === Iteration 28 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-07-09 23:09:03,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 23:09:03,122 INFO L82 PathProgramCache]: Analyzing trace with hash 76251400, now seen corresponding path program 28 times [2021-07-09 23:09:03,122 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 23:09:03,122 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [354416942] [2021-07-09 23:09:03,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 23:09:03,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 23:09:03,140 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:09:03,140 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-09 23:09:03,142 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:09:03,142 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:09:03,146 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:09:03,146 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:09:03,149 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:09:03,150 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:09:03,154 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:09:03,154 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:09:03,159 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:09:03,160 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:09:03,165 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:09:03,166 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:09:03,166 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:09:03,166 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:09:03,171 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:09:03,171 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:09:03,177 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:09:03,177 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:09:03,184 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:09:03,184 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:09:03,191 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:09:03,192 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 23:09:03,192 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 23:09:03,192 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 23:09:03,192 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [354416942] [2021-07-09 23:09:03,192 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [354416942] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 23:09:03,192 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 23:09:03,192 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-07-09 23:09:03,193 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2064117145] [2021-07-09 23:09:03,193 INFO L462 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-07-09 23:09:03,193 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 23:09:03,193 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-07-09 23:09:03,193 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2021-07-09 23:09:03,193 INFO L87 Difference]: Start difference. First operand 62518 states and 186099 transitions. Second operand has 12 states, 12 states have (on average 3.8333333333333335) internal successors, (46), 11 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 23:09:04,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 23:09:04,432 INFO L93 Difference]: Finished difference Result 119092 states and 348226 transitions. [2021-07-09 23:09:04,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-09 23:09:04,436 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.8333333333333335) internal successors, (46), 11 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2021-07-09 23:09:04,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 23:09:05,184 INFO L225 Difference]: With dead ends: 119092 [2021-07-09 23:09:05,184 INFO L226 Difference]: Without dead ends: 118362 [2021-07-09 23:09:05,185 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 110.9ms TimeCoverageRelationStatistics Valid=157, Invalid=305, Unknown=0, NotChecked=0, Total=462 [2021-07-09 23:09:05,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118362 states. [2021-07-09 23:09:07,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118362 to 61940. [2021-07-09 23:09:07,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61940 states, 61939 states have (on average 2.9713589176447797) internal successors, (184043), 61939 states have internal predecessors, (184043), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 23:09:07,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61940 states to 61940 states and 184043 transitions. [2021-07-09 23:09:07,662 INFO L78 Accepts]: Start accepts. Automaton has 61940 states and 184043 transitions. Word has length 46 [2021-07-09 23:09:07,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 23:09:07,662 INFO L482 AbstractCegarLoop]: Abstraction has 61940 states and 184043 transitions. [2021-07-09 23:09:07,662 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 3.8333333333333335) internal successors, (46), 11 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 23:09:07,662 INFO L276 IsEmpty]: Start isEmpty. Operand 61940 states and 184043 transitions. [2021-07-09 23:09:08,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-07-09 23:09:08,163 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 23:09:08,163 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 23:09:08,163 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-07-09 23:09:08,163 INFO L430 AbstractCegarLoop]: === Iteration 29 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-07-09 23:09:08,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 23:09:08,164 INFO L82 PathProgramCache]: Analyzing trace with hash -369025528, now seen corresponding path program 29 times [2021-07-09 23:09:08,164 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 23:09:08,164 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1249851709] [2021-07-09 23:09:08,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 23:09:08,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 23:09:08,179 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:09:08,179 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-09 23:09:08,181 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:09:08,181 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:09:08,184 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:09:08,184 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:09:08,187 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:09:08,188 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:09:08,192 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:09:08,192 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:09:08,207 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:09:08,208 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:09:08,213 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:09:08,213 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:09:08,218 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:09:08,218 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:09:08,223 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:09:08,223 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:09:08,230 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:09:08,230 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:09:08,238 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:09:08,238 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:09:08,245 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:09:08,245 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 23:09:08,246 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 23:09:08,246 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 23:09:08,246 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1249851709] [2021-07-09 23:09:08,246 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1249851709] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 23:09:08,246 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 23:09:08,246 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-07-09 23:09:08,246 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1973732784] [2021-07-09 23:09:08,246 INFO L462 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-07-09 23:09:08,246 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 23:09:08,247 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-07-09 23:09:08,247 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2021-07-09 23:09:08,247 INFO L87 Difference]: Start difference. First operand 61940 states and 184043 transitions. Second operand has 13 states, 13 states have (on average 3.5384615384615383) internal successors, (46), 12 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 23:09:09,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 23:09:09,696 INFO L93 Difference]: Finished difference Result 118458 states and 346498 transitions. [2021-07-09 23:09:09,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-07-09 23:09:09,696 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.5384615384615383) internal successors, (46), 12 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2021-07-09 23:09:09,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 23:09:10,402 INFO L225 Difference]: With dead ends: 118458 [2021-07-09 23:09:10,409 INFO L226 Difference]: Without dead ends: 117513 [2021-07-09 23:09:10,410 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 126 ImplicationChecksByTransitivity, 152.7ms TimeCoverageRelationStatistics Valid=253, Invalid=503, Unknown=0, NotChecked=0, Total=756 [2021-07-09 23:09:10,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117513 states. [2021-07-09 23:09:12,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117513 to 62089. [2021-07-09 23:09:12,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62089 states, 62088 states have (on average 2.9738113645148823) internal successors, (184638), 62088 states have internal predecessors, (184638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 23:09:12,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62089 states to 62089 states and 184638 transitions. [2021-07-09 23:09:12,992 INFO L78 Accepts]: Start accepts. Automaton has 62089 states and 184638 transitions. Word has length 46 [2021-07-09 23:09:12,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 23:09:12,992 INFO L482 AbstractCegarLoop]: Abstraction has 62089 states and 184638 transitions. [2021-07-09 23:09:12,992 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 3.5384615384615383) internal successors, (46), 12 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 23:09:12,992 INFO L276 IsEmpty]: Start isEmpty. Operand 62089 states and 184638 transitions. [2021-07-09 23:09:13,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-07-09 23:09:13,585 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 23:09:13,585 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 23:09:13,585 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-07-09 23:09:13,585 INFO L430 AbstractCegarLoop]: === Iteration 30 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-07-09 23:09:13,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 23:09:13,597 INFO L82 PathProgramCache]: Analyzing trace with hash 1055465820, now seen corresponding path program 30 times [2021-07-09 23:09:13,597 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 23:09:13,597 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [340748562] [2021-07-09 23:09:13,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 23:09:13,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 23:09:13,714 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:09:13,714 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-09 23:09:13,716 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:09:13,716 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:09:13,719 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:09:13,719 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:09:13,733 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:09:13,733 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:09:13,738 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:09:13,738 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:09:13,743 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:09:13,743 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:09:13,744 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:09:13,744 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:09:13,748 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:09:13,749 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:09:13,754 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:09:13,755 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:09:13,761 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:09:13,762 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 23:09:13,762 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 23:09:13,762 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 23:09:13,762 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [340748562] [2021-07-09 23:09:13,762 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [340748562] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 23:09:13,762 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 23:09:13,762 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-07-09 23:09:13,762 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [501492820] [2021-07-09 23:09:13,763 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-07-09 23:09:13,763 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 23:09:13,763 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-07-09 23:09:13,763 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2021-07-09 23:09:13,763 INFO L87 Difference]: Start difference. First operand 62089 states and 184638 transitions. Second operand has 10 states, 10 states have (on average 4.6) internal successors, (46), 9 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 23:09:15,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 23:09:15,281 INFO L93 Difference]: Finished difference Result 155782 states and 460792 transitions. [2021-07-09 23:09:15,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-09 23:09:15,281 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.6) internal successors, (46), 9 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2021-07-09 23:09:15,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 23:09:16,188 INFO L225 Difference]: With dead ends: 155782 [2021-07-09 23:09:16,188 INFO L226 Difference]: Without dead ends: 150682 [2021-07-09 23:09:16,189 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 76.5ms TimeCoverageRelationStatistics Valid=82, Invalid=158, Unknown=0, NotChecked=0, Total=240 [2021-07-09 23:09:16,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150682 states. [2021-07-09 23:09:18,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150682 to 86044. [2021-07-09 23:09:19,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86044 states, 86043 states have (on average 2.9741175923666074) internal successors, (255902), 86043 states have internal predecessors, (255902), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 23:09:19,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86044 states to 86044 states and 255902 transitions. [2021-07-09 23:09:19,415 INFO L78 Accepts]: Start accepts. Automaton has 86044 states and 255902 transitions. Word has length 46 [2021-07-09 23:09:19,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 23:09:19,416 INFO L482 AbstractCegarLoop]: Abstraction has 86044 states and 255902 transitions. [2021-07-09 23:09:19,416 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 4.6) internal successors, (46), 9 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 23:09:19,416 INFO L276 IsEmpty]: Start isEmpty. Operand 86044 states and 255902 transitions. [2021-07-09 23:09:20,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-07-09 23:09:20,072 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 23:09:20,072 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 23:09:20,073 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-07-09 23:09:20,073 INFO L430 AbstractCegarLoop]: === Iteration 31 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-07-09 23:09:20,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 23:09:20,073 INFO L82 PathProgramCache]: Analyzing trace with hash -65223460, now seen corresponding path program 31 times [2021-07-09 23:09:20,073 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 23:09:20,073 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1537065923] [2021-07-09 23:09:20,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 23:09:20,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 23:09:20,085 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:09:20,085 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-09 23:09:20,087 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:09:20,087 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:09:20,090 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:09:20,091 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:09:20,094 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:09:20,094 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:09:20,099 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:09:20,099 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:09:20,104 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:09:20,105 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:09:20,109 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:09:20,110 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:09:20,115 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:09:20,116 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:09:20,122 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:09:20,122 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:09:20,129 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:09:20,129 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 23:09:20,130 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 23:09:20,130 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 23:09:20,130 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1537065923] [2021-07-09 23:09:20,130 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1537065923] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 23:09:20,130 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 23:09:20,130 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-07-09 23:09:20,130 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280308084] [2021-07-09 23:09:20,130 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-07-09 23:09:20,130 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 23:09:20,131 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-07-09 23:09:20,131 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2021-07-09 23:09:20,131 INFO L87 Difference]: Start difference. First operand 86044 states and 255902 transitions. Second operand has 11 states, 11 states have (on average 4.181818181818182) internal successors, (46), 10 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 23:09:21,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 23:09:21,719 INFO L93 Difference]: Finished difference Result 168320 states and 503748 transitions. [2021-07-09 23:09:21,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 23:09:21,719 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.181818181818182) internal successors, (46), 10 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2021-07-09 23:09:21,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 23:09:22,790 INFO L225 Difference]: With dead ends: 168320 [2021-07-09 23:09:22,791 INFO L226 Difference]: Without dead ends: 165276 [2021-07-09 23:09:22,791 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 102.0ms TimeCoverageRelationStatistics Valid=141, Invalid=279, Unknown=0, NotChecked=0, Total=420 [2021-07-09 23:09:23,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165276 states. [2021-07-09 23:09:25,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165276 to 83616. [2021-07-09 23:09:25,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83616 states, 83615 states have (on average 2.979931830413203) internal successors, (249167), 83615 states have internal predecessors, (249167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 23:09:26,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83616 states to 83616 states and 249167 transitions. [2021-07-09 23:09:26,716 INFO L78 Accepts]: Start accepts. Automaton has 83616 states and 249167 transitions. Word has length 46 [2021-07-09 23:09:26,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 23:09:26,716 INFO L482 AbstractCegarLoop]: Abstraction has 83616 states and 249167 transitions. [2021-07-09 23:09:26,716 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 4.181818181818182) internal successors, (46), 10 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 23:09:26,716 INFO L276 IsEmpty]: Start isEmpty. Operand 83616 states and 249167 transitions. [2021-07-09 23:09:26,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-07-09 23:09:26,904 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 23:09:26,904 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 23:09:26,904 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2021-07-09 23:09:26,904 INFO L430 AbstractCegarLoop]: === Iteration 32 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-07-09 23:09:26,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 23:09:26,904 INFO L82 PathProgramCache]: Analyzing trace with hash -1618855264, now seen corresponding path program 32 times [2021-07-09 23:09:26,904 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 23:09:26,904 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [186026042] [2021-07-09 23:09:26,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 23:09:26,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 23:09:26,928 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:09:26,928 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-09 23:09:26,931 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:09:26,931 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:09:26,934 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:09:26,934 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:09:26,938 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:09:26,938 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:09:26,944 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:09:26,944 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:09:26,950 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:09:26,950 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:09:26,950 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:09:26,951 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:09:26,951 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:09:26,951 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:09:26,951 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:09:26,952 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-09 23:09:26,955 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:09:26,956 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:09:26,956 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:09:26,956 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:09:26,962 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:09:26,962 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 23:09:26,962 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 23:09:26,962 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 23:09:26,963 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [186026042] [2021-07-09 23:09:26,963 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [186026042] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 23:09:26,963 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 23:09:26,963 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-07-09 23:09:26,963 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [932676754] [2021-07-09 23:09:26,963 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-07-09 23:09:26,963 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 23:09:26,964 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-07-09 23:09:26,964 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2021-07-09 23:09:26,964 INFO L87 Difference]: Start difference. First operand 83616 states and 249167 transitions. Second operand has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 8 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 23:09:28,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 23:09:28,586 INFO L93 Difference]: Finished difference Result 157639 states and 469498 transitions. [2021-07-09 23:09:28,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-09 23:09:28,602 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 8 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2021-07-09 23:09:28,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 23:09:29,301 INFO L225 Difference]: With dead ends: 157639 [2021-07-09 23:09:29,302 INFO L226 Difference]: Without dead ends: 156978 [2021-07-09 23:09:29,302 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 42.8ms TimeCoverageRelationStatistics Valid=50, Invalid=82, Unknown=0, NotChecked=0, Total=132 [2021-07-09 23:09:29,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156978 states. [2021-07-09 23:09:32,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156978 to 82971. [2021-07-09 23:09:32,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82971 states, 82970 states have (on average 2.9879353983367483) internal successors, (247909), 82970 states have internal predecessors, (247909), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 23:09:33,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82971 states to 82971 states and 247909 transitions. [2021-07-09 23:09:33,065 INFO L78 Accepts]: Start accepts. Automaton has 82971 states and 247909 transitions. Word has length 46 [2021-07-09 23:09:33,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 23:09:33,065 INFO L482 AbstractCegarLoop]: Abstraction has 82971 states and 247909 transitions. [2021-07-09 23:09:33,065 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 8 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 23:09:33,065 INFO L276 IsEmpty]: Start isEmpty. Operand 82971 states and 247909 transitions. [2021-07-09 23:09:33,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-07-09 23:09:33,282 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 23:09:33,282 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 23:09:33,282 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2021-07-09 23:09:33,283 INFO L430 AbstractCegarLoop]: === Iteration 33 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-07-09 23:09:33,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 23:09:33,283 INFO L82 PathProgramCache]: Analyzing trace with hash 789386276, now seen corresponding path program 33 times [2021-07-09 23:09:33,283 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 23:09:33,283 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [799550280] [2021-07-09 23:09:33,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 23:09:33,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 23:09:33,298 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:09:33,298 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-09 23:09:33,301 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:09:33,301 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:09:33,304 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:09:33,305 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:09:33,308 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:09:33,309 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:09:33,313 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:09:33,313 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:09:33,319 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:09:33,319 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:09:33,326 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:09:33,327 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:09:33,327 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:09:33,327 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:09:33,333 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:09:33,333 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:09:33,341 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:09:33,341 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:09:33,349 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:09:33,349 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:09:33,358 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:09:33,359 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 23:09:33,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 23:09:33,359 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 23:09:33,360 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [799550280] [2021-07-09 23:09:33,360 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [799550280] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 23:09:33,360 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 23:09:33,360 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-07-09 23:09:33,360 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1560995581] [2021-07-09 23:09:33,360 INFO L462 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-07-09 23:09:33,360 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 23:09:33,361 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-07-09 23:09:33,361 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2021-07-09 23:09:33,361 INFO L87 Difference]: Start difference. First operand 82971 states and 247909 transitions. Second operand has 12 states, 12 states have (on average 3.8333333333333335) internal successors, (46), 11 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 23:09:35,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 23:09:35,103 INFO L93 Difference]: Finished difference Result 136947 states and 406413 transitions. [2021-07-09 23:09:35,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-09 23:09:35,113 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.8333333333333335) internal successors, (46), 11 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2021-07-09 23:09:35,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 23:09:35,716 INFO L225 Difference]: With dead ends: 136947 [2021-07-09 23:09:35,716 INFO L226 Difference]: Without dead ends: 134871 [2021-07-09 23:09:35,717 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 121.0ms TimeCoverageRelationStatistics Valid=157, Invalid=305, Unknown=0, NotChecked=0, Total=462 [2021-07-09 23:09:36,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134871 states. [2021-07-09 23:09:38,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134871 to 79719. [2021-07-09 23:09:38,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79719 states, 79718 states have (on average 2.989437768132668) internal successors, (238312), 79718 states have internal predecessors, (238312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 23:09:38,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79719 states to 79719 states and 238312 transitions. [2021-07-09 23:09:38,816 INFO L78 Accepts]: Start accepts. Automaton has 79719 states and 238312 transitions. Word has length 46 [2021-07-09 23:09:38,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 23:09:38,816 INFO L482 AbstractCegarLoop]: Abstraction has 79719 states and 238312 transitions. [2021-07-09 23:09:38,816 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 3.8333333333333335) internal successors, (46), 11 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 23:09:38,816 INFO L276 IsEmpty]: Start isEmpty. Operand 79719 states and 238312 transitions. [2021-07-09 23:09:39,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-07-09 23:09:39,434 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 23:09:39,434 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 23:09:39,434 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2021-07-09 23:09:39,434 INFO L430 AbstractCegarLoop]: === Iteration 34 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-07-09 23:09:39,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 23:09:39,434 INFO L82 PathProgramCache]: Analyzing trace with hash -216596316, now seen corresponding path program 34 times [2021-07-09 23:09:39,435 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 23:09:39,435 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1403490841] [2021-07-09 23:09:39,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 23:09:39,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 23:09:39,470 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:09:39,470 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-09 23:09:39,473 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:09:39,473 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:09:39,476 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:09:39,476 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:09:39,479 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:09:39,479 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:09:39,483 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:09:39,483 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:09:39,488 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:09:39,488 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:09:39,493 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:09:39,493 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:09:39,498 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:09:39,498 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:09:39,503 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:09:39,504 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:09:39,509 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:09:39,510 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:09:39,516 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:09:39,517 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:09:39,524 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:09:39,524 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 23:09:39,525 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 23:09:39,525 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 23:09:39,525 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1403490841] [2021-07-09 23:09:39,525 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1403490841] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 23:09:39,525 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 23:09:39,525 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-07-09 23:09:39,525 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [891277810] [2021-07-09 23:09:39,525 INFO L462 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-07-09 23:09:39,525 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 23:09:39,526 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-07-09 23:09:39,526 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2021-07-09 23:09:39,526 INFO L87 Difference]: Start difference. First operand 79719 states and 238312 transitions. Second operand has 13 states, 13 states have (on average 3.5384615384615383) internal successors, (46), 12 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 23:09:41,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 23:09:41,011 INFO L93 Difference]: Finished difference Result 131533 states and 390706 transitions. [2021-07-09 23:09:41,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-07-09 23:09:41,012 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.5384615384615383) internal successors, (46), 12 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2021-07-09 23:09:41,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 23:09:41,481 INFO L225 Difference]: With dead ends: 131533 [2021-07-09 23:09:41,481 INFO L226 Difference]: Without dead ends: 130175 [2021-07-09 23:09:41,482 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 103 ImplicationChecksByTransitivity, 167.9ms TimeCoverageRelationStatistics Valid=253, Invalid=503, Unknown=0, NotChecked=0, Total=756 [2021-07-09 23:09:42,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130175 states. [2021-07-09 23:09:44,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130175 to 77629. [2021-07-09 23:09:44,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77629 states, 77628 states have (on average 2.9969340959447623) internal successors, (232646), 77628 states have internal predecessors, (232646), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 23:09:45,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77629 states to 77629 states and 232646 transitions. [2021-07-09 23:09:45,234 INFO L78 Accepts]: Start accepts. Automaton has 77629 states and 232646 transitions. Word has length 46 [2021-07-09 23:09:45,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 23:09:45,235 INFO L482 AbstractCegarLoop]: Abstraction has 77629 states and 232646 transitions. [2021-07-09 23:09:45,235 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 3.5384615384615383) internal successors, (46), 12 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 23:09:45,235 INFO L276 IsEmpty]: Start isEmpty. Operand 77629 states and 232646 transitions. [2021-07-09 23:09:45,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-07-09 23:09:45,519 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 23:09:45,520 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 23:09:45,520 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2021-07-09 23:09:45,520 INFO L430 AbstractCegarLoop]: === Iteration 35 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-07-09 23:09:45,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 23:09:45,520 INFO L82 PathProgramCache]: Analyzing trace with hash 188612612, now seen corresponding path program 35 times [2021-07-09 23:09:45,520 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 23:09:45,521 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1786286674] [2021-07-09 23:09:45,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 23:09:45,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 23:09:45,563 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:09:45,563 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-09 23:09:45,566 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:09:45,566 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:09:45,569 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:09:45,569 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-09 23:09:45,573 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:09:45,574 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:09:45,574 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:09:45,574 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:09:45,580 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:09:45,580 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 23:09:45,581 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 23:09:45,581 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 23:09:45,581 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1786286674] [2021-07-09 23:09:45,581 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1786286674] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 23:09:45,581 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 23:09:45,581 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-07-09 23:09:45,582 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [421566803] [2021-07-09 23:09:45,582 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-07-09 23:09:45,582 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 23:09:45,582 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-07-09 23:09:45,582 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-07-09 23:09:45,582 INFO L87 Difference]: Start difference. First operand 77629 states and 232646 transitions. Second operand has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 5 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 23:09:47,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 23:09:47,122 INFO L93 Difference]: Finished difference Result 157101 states and 471254 transitions. [2021-07-09 23:09:47,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-09 23:09:47,122 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 5 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2021-07-09 23:09:47,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 23:09:48,073 INFO L225 Difference]: With dead ends: 157101 [2021-07-09 23:09:48,073 INFO L226 Difference]: Without dead ends: 156603 [2021-07-09 23:09:48,073 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 18.9ms TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-07-09 23:09:48,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156603 states. [2021-07-09 23:09:50,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156603 to 83768. [2021-07-09 23:09:51,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83768 states, 83767 states have (on average 2.9703582556376618) internal successors, (248818), 83767 states have internal predecessors, (248818), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 23:09:51,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83768 states to 83768 states and 248818 transitions. [2021-07-09 23:09:51,309 INFO L78 Accepts]: Start accepts. Automaton has 83768 states and 248818 transitions. Word has length 46 [2021-07-09 23:09:51,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 23:09:51,309 INFO L482 AbstractCegarLoop]: Abstraction has 83768 states and 248818 transitions. [2021-07-09 23:09:51,309 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 5 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 23:09:51,309 INFO L276 IsEmpty]: Start isEmpty. Operand 83768 states and 248818 transitions. [2021-07-09 23:09:51,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-07-09 23:09:51,942 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 23:09:51,942 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 23:09:51,942 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2021-07-09 23:09:51,942 INFO L430 AbstractCegarLoop]: === Iteration 36 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-07-09 23:09:51,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 23:09:51,943 INFO L82 PathProgramCache]: Analyzing trace with hash -301507068, now seen corresponding path program 36 times [2021-07-09 23:09:51,943 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 23:09:51,943 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1654796113] [2021-07-09 23:09:51,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 23:09:51,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 23:09:51,958 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:09:51,958 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-09 23:09:51,960 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:09:51,961 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:09:51,963 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:09:51,964 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-09 23:09:51,967 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:09:51,967 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:09:51,968 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:09:51,968 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:09:51,971 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:09:51,971 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:09:51,976 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:09:51,976 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:09:51,981 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:09:51,981 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:09:51,986 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:09:51,986 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:09:51,992 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:09:51,992 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:09:51,999 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:09:51,999 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:09:52,006 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:09:52,006 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 23:09:52,007 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 23:09:52,007 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 23:09:52,007 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1654796113] [2021-07-09 23:09:52,007 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1654796113] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 23:09:52,007 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 23:09:52,007 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-07-09 23:09:52,007 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [985728681] [2021-07-09 23:09:52,008 INFO L462 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-07-09 23:09:52,008 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 23:09:52,008 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-07-09 23:09:52,008 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2021-07-09 23:09:52,008 INFO L87 Difference]: Start difference. First operand 83768 states and 248818 transitions. Second operand has 12 states, 12 states have (on average 3.8333333333333335) internal successors, (46), 11 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 23:09:53,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 23:09:53,467 INFO L93 Difference]: Finished difference Result 163955 states and 488114 transitions. [2021-07-09 23:09:53,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-09 23:09:53,468 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.8333333333333335) internal successors, (46), 11 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2021-07-09 23:09:53,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 23:09:54,466 INFO L225 Difference]: With dead ends: 163955 [2021-07-09 23:09:54,466 INFO L226 Difference]: Without dead ends: 163035 [2021-07-09 23:09:54,467 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 105.9ms TimeCoverageRelationStatistics Valid=158, Invalid=304, Unknown=0, NotChecked=0, Total=462 [2021-07-09 23:09:55,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163035 states. [2021-07-09 23:09:57,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163035 to 83106. [2021-07-09 23:09:57,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83106 states, 83105 states have (on average 2.965248781661753) internal successors, (246427), 83105 states have internal predecessors, (246427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 23:09:57,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83106 states to 83106 states and 246427 transitions. [2021-07-09 23:09:57,742 INFO L78 Accepts]: Start accepts. Automaton has 83106 states and 246427 transitions. Word has length 46 [2021-07-09 23:09:57,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 23:09:57,743 INFO L482 AbstractCegarLoop]: Abstraction has 83106 states and 246427 transitions. [2021-07-09 23:09:57,743 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 3.8333333333333335) internal successors, (46), 11 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 23:09:57,743 INFO L276 IsEmpty]: Start isEmpty. Operand 83106 states and 246427 transitions. [2021-07-09 23:09:58,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-07-09 23:09:58,405 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 23:09:58,405 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 23:09:58,405 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2021-07-09 23:09:58,406 INFO L430 AbstractCegarLoop]: === Iteration 37 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-07-09 23:09:58,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 23:09:58,406 INFO L82 PathProgramCache]: Analyzing trace with hash 835266596, now seen corresponding path program 37 times [2021-07-09 23:09:58,406 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 23:09:58,406 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [354207744] [2021-07-09 23:09:58,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 23:09:58,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 23:09:58,418 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:09:58,418 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-09 23:09:58,420 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:09:58,420 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:09:58,423 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:09:58,423 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-09 23:09:58,427 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:09:58,427 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:09:58,427 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:09:58,427 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:09:58,431 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:09:58,431 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:09:58,435 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:09:58,435 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:09:58,440 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:09:58,440 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:09:58,445 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:09:58,446 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:09:58,451 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:09:58,452 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:09:58,458 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:09:58,458 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:09:58,465 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:09:58,466 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 23:09:58,466 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 23:09:58,466 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 23:09:58,466 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [354207744] [2021-07-09 23:09:58,466 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [354207744] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 23:09:58,466 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 23:09:58,467 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-07-09 23:09:58,467 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [473718116] [2021-07-09 23:09:58,467 INFO L462 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-07-09 23:09:58,467 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 23:09:58,467 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-07-09 23:09:58,468 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2021-07-09 23:09:58,468 INFO L87 Difference]: Start difference. First operand 83106 states and 246427 transitions. Second operand has 12 states, 12 states have (on average 3.8333333333333335) internal successors, (46), 11 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 23:09:59,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 23:09:59,951 INFO L93 Difference]: Finished difference Result 160685 states and 475942 transitions. [2021-07-09 23:09:59,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-09 23:09:59,951 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.8333333333333335) internal successors, (46), 11 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2021-07-09 23:09:59,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 23:10:00,912 INFO L225 Difference]: With dead ends: 160685 [2021-07-09 23:10:00,912 INFO L226 Difference]: Without dead ends: 155937 [2021-07-09 23:10:00,913 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 99.9ms TimeCoverageRelationStatistics Valid=158, Invalid=304, Unknown=0, NotChecked=0, Total=462 [2021-07-09 23:10:01,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155937 states. [2021-07-09 23:10:03,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155937 to 81892. [2021-07-09 23:10:03,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81892 states, 81891 states have (on average 2.9659425333675253) internal successors, (242884), 81891 states have internal predecessors, (242884), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 23:10:04,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81892 states to 81892 states and 242884 transitions. [2021-07-09 23:10:04,236 INFO L78 Accepts]: Start accepts. Automaton has 81892 states and 242884 transitions. Word has length 46 [2021-07-09 23:10:04,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 23:10:04,236 INFO L482 AbstractCegarLoop]: Abstraction has 81892 states and 242884 transitions. [2021-07-09 23:10:04,236 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 3.8333333333333335) internal successors, (46), 11 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 23:10:04,236 INFO L276 IsEmpty]: Start isEmpty. Operand 81892 states and 242884 transitions. [2021-07-09 23:10:04,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-07-09 23:10:04,899 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 23:10:04,899 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 23:10:04,899 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2021-07-09 23:10:04,899 INFO L430 AbstractCegarLoop]: === Iteration 38 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-07-09 23:10:04,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 23:10:04,900 INFO L82 PathProgramCache]: Analyzing trace with hash 2132745478, now seen corresponding path program 38 times [2021-07-09 23:10:04,900 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 23:10:04,900 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1345904223] [2021-07-09 23:10:04,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 23:10:04,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 23:10:04,908 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:10:04,909 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-09 23:10:04,911 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:10:04,911 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:10:04,914 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:10:04,914 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-09 23:10:04,918 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:10:04,918 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:10:04,918 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:10:04,918 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:10:04,922 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:10:04,922 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:10:04,926 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:10:04,926 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:10:04,930 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:10:04,931 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:10:04,935 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:10:04,936 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:10:04,941 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:10:04,941 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:10:04,947 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:10:04,947 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:10:04,954 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:10:04,954 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 23:10:04,955 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 23:10:04,955 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 23:10:04,955 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1345904223] [2021-07-09 23:10:04,955 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1345904223] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 23:10:04,955 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 23:10:04,955 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-07-09 23:10:04,955 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [343334273] [2021-07-09 23:10:04,955 INFO L462 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-07-09 23:10:04,956 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 23:10:04,956 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-07-09 23:10:04,956 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2021-07-09 23:10:04,956 INFO L87 Difference]: Start difference. First operand 81892 states and 242884 transitions. Second operand has 12 states, 12 states have (on average 3.8333333333333335) internal successors, (46), 11 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 23:10:06,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 23:10:06,513 INFO L93 Difference]: Finished difference Result 161333 states and 480919 transitions. [2021-07-09 23:10:06,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-09 23:10:06,514 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.8333333333333335) internal successors, (46), 11 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2021-07-09 23:10:06,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 23:10:07,496 INFO L225 Difference]: With dead ends: 161333 [2021-07-09 23:10:07,496 INFO L226 Difference]: Without dead ends: 160341 [2021-07-09 23:10:07,496 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 118.1ms TimeCoverageRelationStatistics Valid=158, Invalid=304, Unknown=0, NotChecked=0, Total=462 [2021-07-09 23:10:08,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160341 states. [2021-07-09 23:10:10,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160341 to 80702. [2021-07-09 23:10:10,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80702 states, 80701 states have (on average 2.967038822319426) internal successors, (239443), 80701 states have internal predecessors, (239443), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 23:10:11,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80702 states to 80702 states and 239443 transitions. [2021-07-09 23:10:11,159 INFO L78 Accepts]: Start accepts. Automaton has 80702 states and 239443 transitions. Word has length 46 [2021-07-09 23:10:11,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 23:10:11,160 INFO L482 AbstractCegarLoop]: Abstraction has 80702 states and 239443 transitions. [2021-07-09 23:10:11,160 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 3.8333333333333335) internal successors, (46), 11 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 23:10:11,160 INFO L276 IsEmpty]: Start isEmpty. Operand 80702 states and 239443 transitions. [2021-07-09 23:10:11,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-07-09 23:10:11,372 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 23:10:11,372 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 23:10:11,372 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2021-07-09 23:10:11,372 INFO L430 AbstractCegarLoop]: === Iteration 39 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-07-09 23:10:11,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 23:10:11,372 INFO L82 PathProgramCache]: Analyzing trace with hash -1902590344, now seen corresponding path program 39 times [2021-07-09 23:10:11,373 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 23:10:11,373 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1874114035] [2021-07-09 23:10:11,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 23:10:11,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 23:10:11,382 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:10:11,383 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-09 23:10:11,385 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:10:11,385 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:10:11,388 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:10:11,388 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-09 23:10:11,391 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:10:11,392 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:10:11,392 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:10:11,392 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:10:11,395 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:10:11,396 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:10:11,400 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:10:11,400 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:10:11,405 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:10:11,405 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:10:11,411 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:10:11,411 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 23:10:11,412 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 23:10:11,412 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 23:10:11,412 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1874114035] [2021-07-09 23:10:11,412 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1874114035] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 23:10:11,412 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 23:10:11,412 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-07-09 23:10:11,412 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [549415191] [2021-07-09 23:10:11,413 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-07-09 23:10:11,413 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 23:10:11,413 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-07-09 23:10:11,413 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-07-09 23:10:11,413 INFO L87 Difference]: Start difference. First operand 80702 states and 239443 transitions. Second operand has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 8 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 23:10:12,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 23:10:12,698 INFO L93 Difference]: Finished difference Result 155596 states and 448215 transitions. [2021-07-09 23:10:12,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-09 23:10:12,699 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 8 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2021-07-09 23:10:12,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 23:10:13,594 INFO L225 Difference]: With dead ends: 155596 [2021-07-09 23:10:13,594 INFO L226 Difference]: Without dead ends: 153329 [2021-07-09 23:10:13,595 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 40.5ms TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2021-07-09 23:10:14,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153329 states. [2021-07-09 23:10:16,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153329 to 78361. [2021-07-09 23:10:17,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78361 states, 78360 states have (on average 2.8480729964267484) internal successors, (223175), 78360 states have internal predecessors, (223175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 23:10:17,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78361 states to 78361 states and 223175 transitions. [2021-07-09 23:10:17,248 INFO L78 Accepts]: Start accepts. Automaton has 78361 states and 223175 transitions. Word has length 46 [2021-07-09 23:10:17,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 23:10:17,248 INFO L482 AbstractCegarLoop]: Abstraction has 78361 states and 223175 transitions. [2021-07-09 23:10:17,248 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 8 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 23:10:17,248 INFO L276 IsEmpty]: Start isEmpty. Operand 78361 states and 223175 transitions. [2021-07-09 23:10:17,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-07-09 23:10:17,889 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 23:10:17,889 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 23:10:17,890 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2021-07-09 23:10:17,890 INFO L430 AbstractCegarLoop]: === Iteration 40 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-07-09 23:10:17,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 23:10:17,890 INFO L82 PathProgramCache]: Analyzing trace with hash 1598975016, now seen corresponding path program 40 times [2021-07-09 23:10:17,890 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 23:10:17,890 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [18698427] [2021-07-09 23:10:17,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 23:10:17,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 23:10:17,905 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:10:17,905 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-09 23:10:17,907 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:10:17,910 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:10:17,913 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:10:17,914 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-09 23:10:17,917 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:10:17,917 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:10:17,917 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:10:17,918 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:10:17,921 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:10:17,921 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:10:17,925 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:10:17,926 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:10:17,930 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:10:17,931 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:10:17,936 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:10:17,936 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:10:17,942 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:10:17,942 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 23:10:17,943 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 23:10:17,943 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 23:10:17,943 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [18698427] [2021-07-09 23:10:17,943 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [18698427] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 23:10:17,943 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 23:10:17,943 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-07-09 23:10:17,943 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2140569903] [2021-07-09 23:10:17,943 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-07-09 23:10:17,943 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 23:10:17,944 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-07-09 23:10:17,944 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2021-07-09 23:10:17,944 INFO L87 Difference]: Start difference. First operand 78361 states and 223175 transitions. Second operand has 10 states, 10 states have (on average 4.6) internal successors, (46), 9 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 23:10:19,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 23:10:19,129 INFO L93 Difference]: Finished difference Result 127183 states and 344115 transitions. [2021-07-09 23:10:19,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-09 23:10:19,130 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.6) internal successors, (46), 9 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2021-07-09 23:10:19,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 23:10:19,559 INFO L225 Difference]: With dead ends: 127183 [2021-07-09 23:10:19,559 INFO L226 Difference]: Without dead ends: 121622 [2021-07-09 23:10:19,560 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 62.0ms TimeCoverageRelationStatistics Valid=83, Invalid=157, Unknown=0, NotChecked=0, Total=240 [2021-07-09 23:10:20,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121622 states. [2021-07-09 23:10:21,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121622 to 65846. [2021-07-09 23:10:21,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65846 states, 65845 states have (on average 2.6980788214746756) internal successors, (177655), 65845 states have internal predecessors, (177655), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 23:10:22,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65846 states to 65846 states and 177655 transitions. [2021-07-09 23:10:22,078 INFO L78 Accepts]: Start accepts. Automaton has 65846 states and 177655 transitions. Word has length 46 [2021-07-09 23:10:22,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 23:10:22,078 INFO L482 AbstractCegarLoop]: Abstraction has 65846 states and 177655 transitions. [2021-07-09 23:10:22,078 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 4.6) internal successors, (46), 9 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 23:10:22,078 INFO L276 IsEmpty]: Start isEmpty. Operand 65846 states and 177655 transitions. [2021-07-09 23:10:22,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-07-09 23:10:22,211 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 23:10:22,211 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 23:10:22,211 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2021-07-09 23:10:22,211 INFO L430 AbstractCegarLoop]: === Iteration 41 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-07-09 23:10:22,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 23:10:22,211 INFO L82 PathProgramCache]: Analyzing trace with hash 1142933936, now seen corresponding path program 41 times [2021-07-09 23:10:22,211 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 23:10:22,212 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [95987770] [2021-07-09 23:10:22,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 23:10:22,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 23:10:22,225 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:10:22,226 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-09 23:10:22,228 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:10:22,228 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:10:22,231 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:10:22,231 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-09 23:10:22,234 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:10:22,234 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:10:22,235 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:10:22,235 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:10:22,238 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:10:22,239 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:10:22,243 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:10:22,243 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:10:22,248 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:10:22,248 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:10:22,253 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:10:22,253 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:10:22,258 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:10:22,259 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:10:22,265 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:10:22,265 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:10:22,271 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:10:22,272 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 23:10:22,272 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 23:10:22,272 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 23:10:22,272 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [95987770] [2021-07-09 23:10:22,272 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [95987770] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 23:10:22,272 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 23:10:22,272 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-07-09 23:10:22,272 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [378756091] [2021-07-09 23:10:22,272 INFO L462 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-07-09 23:10:22,272 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 23:10:22,273 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-07-09 23:10:22,273 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2021-07-09 23:10:22,273 INFO L87 Difference]: Start difference. First operand 65846 states and 177655 transitions. Second operand has 12 states, 12 states have (on average 3.8333333333333335) internal successors, (46), 11 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 23:10:23,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 23:10:23,487 INFO L93 Difference]: Finished difference Result 120210 states and 319418 transitions. [2021-07-09 23:10:23,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-09 23:10:23,487 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.8333333333333335) internal successors, (46), 11 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2021-07-09 23:10:23,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 23:10:24,154 INFO L225 Difference]: With dead ends: 120210 [2021-07-09 23:10:24,154 INFO L226 Difference]: Without dead ends: 114886 [2021-07-09 23:10:24,155 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 98.6ms TimeCoverageRelationStatistics Valid=158, Invalid=304, Unknown=0, NotChecked=0, Total=462 [2021-07-09 23:10:24,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114886 states. [2021-07-09 23:10:25,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114886 to 62300. [2021-07-09 23:10:26,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62300 states, 62299 states have (on average 2.676479558259362) internal successors, (166742), 62299 states have internal predecessors, (166742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 23:10:26,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62300 states to 62300 states and 166742 transitions. [2021-07-09 23:10:26,253 INFO L78 Accepts]: Start accepts. Automaton has 62300 states and 166742 transitions. Word has length 46 [2021-07-09 23:10:26,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 23:10:26,253 INFO L482 AbstractCegarLoop]: Abstraction has 62300 states and 166742 transitions. [2021-07-09 23:10:26,254 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 3.8333333333333335) internal successors, (46), 11 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 23:10:26,254 INFO L276 IsEmpty]: Start isEmpty. Operand 62300 states and 166742 transitions. [2021-07-09 23:10:26,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-07-09 23:10:26,382 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 23:10:26,382 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 23:10:26,382 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2021-07-09 23:10:26,382 INFO L430 AbstractCegarLoop]: === Iteration 42 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-07-09 23:10:26,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 23:10:26,383 INFO L82 PathProgramCache]: Analyzing trace with hash 1912734926, now seen corresponding path program 42 times [2021-07-09 23:10:26,383 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 23:10:26,383 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1771741682] [2021-07-09 23:10:26,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 23:10:26,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 23:10:26,403 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:10:26,403 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-09 23:10:26,406 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:10:26,406 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:10:26,408 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:10:26,409 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:10:26,412 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:10:26,413 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:10:26,417 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:10:26,417 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:10:26,422 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:10:26,422 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:10:26,428 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:10:26,428 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:10:26,433 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:10:26,434 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:10:26,440 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:10:26,440 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:10:26,446 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:10:26,447 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:10:26,454 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:10:26,455 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:10:26,463 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:10:26,464 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 23:10:26,464 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 23:10:26,464 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 23:10:26,464 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1771741682] [2021-07-09 23:10:26,464 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1771741682] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 23:10:26,465 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 23:10:26,465 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-07-09 23:10:26,465 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [842451202] [2021-07-09 23:10:26,465 INFO L462 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-07-09 23:10:26,465 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 23:10:26,465 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-07-09 23:10:26,465 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2021-07-09 23:10:26,466 INFO L87 Difference]: Start difference. First operand 62300 states and 166742 transitions. Second operand has 13 states, 13 states have (on average 3.5384615384615383) internal successors, (46), 12 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 23:10:28,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 23:10:28,046 INFO L93 Difference]: Finished difference Result 95426 states and 248244 transitions. [2021-07-09 23:10:28,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-07-09 23:10:28,046 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.5384615384615383) internal successors, (46), 12 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2021-07-09 23:10:28,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 23:10:28,334 INFO L225 Difference]: With dead ends: 95426 [2021-07-09 23:10:28,335 INFO L226 Difference]: Without dead ends: 93077 [2021-07-09 23:10:28,335 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 103 ImplicationChecksByTransitivity, 165.2ms TimeCoverageRelationStatistics Valid=253, Invalid=503, Unknown=0, NotChecked=0, Total=756 [2021-07-09 23:10:28,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93077 states. [2021-07-09 23:10:29,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93077 to 58607. [2021-07-09 23:10:30,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58607 states, 58606 states have (on average 2.6757328601167116) internal successors, (156814), 58606 states have internal predecessors, (156814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 23:10:30,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58607 states to 58607 states and 156814 transitions. [2021-07-09 23:10:30,189 INFO L78 Accepts]: Start accepts. Automaton has 58607 states and 156814 transitions. Word has length 46 [2021-07-09 23:10:30,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 23:10:30,190 INFO L482 AbstractCegarLoop]: Abstraction has 58607 states and 156814 transitions. [2021-07-09 23:10:30,190 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 3.5384615384615383) internal successors, (46), 12 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 23:10:30,190 INFO L276 IsEmpty]: Start isEmpty. Operand 58607 states and 156814 transitions. [2021-07-09 23:10:30,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-07-09 23:10:30,310 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 23:10:30,310 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 23:10:30,310 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2021-07-09 23:10:30,310 INFO L430 AbstractCegarLoop]: === Iteration 43 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-07-09 23:10:30,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 23:10:30,311 INFO L82 PathProgramCache]: Analyzing trace with hash -2003429676, now seen corresponding path program 43 times [2021-07-09 23:10:30,311 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 23:10:30,311 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2104356946] [2021-07-09 23:10:30,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 23:10:30,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 23:10:30,322 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:10:30,322 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-09 23:10:30,324 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:10:30,325 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:10:30,327 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:10:30,328 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-09 23:10:30,331 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:10:30,331 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:10:30,331 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:10:30,332 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:10:30,335 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:10:30,335 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:10:30,339 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:10:30,340 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:10:30,340 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:10:30,340 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:10:30,345 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:10:30,345 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:10:30,350 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:10:30,351 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 23:10:30,351 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 23:10:30,351 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 23:10:30,351 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2104356946] [2021-07-09 23:10:30,351 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2104356946] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 23:10:30,351 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 23:10:30,351 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-07-09 23:10:30,351 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [356239827] [2021-07-09 23:10:30,352 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-07-09 23:10:30,352 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 23:10:30,352 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-07-09 23:10:30,352 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-07-09 23:10:30,352 INFO L87 Difference]: Start difference. First operand 58607 states and 156814 transitions. Second operand has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 8 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 23:10:31,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 23:10:31,446 INFO L93 Difference]: Finished difference Result 120205 states and 323820 transitions. [2021-07-09 23:10:31,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-09 23:10:31,446 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 8 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2021-07-09 23:10:31,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 23:10:31,830 INFO L225 Difference]: With dead ends: 120205 [2021-07-09 23:10:31,830 INFO L226 Difference]: Without dead ends: 116873 [2021-07-09 23:10:31,830 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 38.7ms TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2021-07-09 23:10:32,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116873 states. [2021-07-09 23:10:33,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116873 to 52675. [2021-07-09 23:10:34,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52675 states, 52674 states have (on average 2.6352849603219806) internal successors, (138811), 52674 states have internal predecessors, (138811), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 23:10:34,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52675 states to 52675 states and 138811 transitions. [2021-07-09 23:10:34,351 INFO L78 Accepts]: Start accepts. Automaton has 52675 states and 138811 transitions. Word has length 46 [2021-07-09 23:10:34,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 23:10:34,351 INFO L482 AbstractCegarLoop]: Abstraction has 52675 states and 138811 transitions. [2021-07-09 23:10:34,351 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 8 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 23:10:34,351 INFO L276 IsEmpty]: Start isEmpty. Operand 52675 states and 138811 transitions. [2021-07-09 23:10:34,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-07-09 23:10:34,456 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 23:10:34,456 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 23:10:34,456 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2021-07-09 23:10:34,456 INFO L430 AbstractCegarLoop]: === Iteration 44 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-07-09 23:10:34,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 23:10:34,456 INFO L82 PathProgramCache]: Analyzing trace with hash -1324103754, now seen corresponding path program 44 times [2021-07-09 23:10:34,456 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 23:10:34,457 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [962871363] [2021-07-09 23:10:34,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 23:10:34,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 23:10:34,467 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:10:34,467 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-09 23:10:34,469 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:10:34,470 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:10:34,472 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:10:34,473 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-09 23:10:34,476 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:10:34,476 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:10:34,477 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:10:34,477 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:10:34,480 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:10:34,481 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:10:34,485 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:10:34,485 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:10:34,490 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:10:34,490 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:10:34,495 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:10:34,495 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:10:34,501 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:10:34,501 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 23:10:34,502 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 23:10:34,502 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 23:10:34,502 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [962871363] [2021-07-09 23:10:34,502 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [962871363] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 23:10:34,502 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 23:10:34,502 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-07-09 23:10:34,502 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1620013985] [2021-07-09 23:10:34,502 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-07-09 23:10:34,502 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 23:10:34,502 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-07-09 23:10:34,502 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2021-07-09 23:10:34,503 INFO L87 Difference]: Start difference. First operand 52675 states and 138811 transitions. Second operand has 10 states, 10 states have (on average 4.6) internal successors, (46), 9 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 23:10:35,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 23:10:35,546 INFO L93 Difference]: Finished difference Result 113353 states and 304954 transitions. [2021-07-09 23:10:35,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-09 23:10:35,546 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.6) internal successors, (46), 9 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2021-07-09 23:10:35,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 23:10:35,925 INFO L225 Difference]: With dead ends: 113353 [2021-07-09 23:10:35,925 INFO L226 Difference]: Without dead ends: 111253 [2021-07-09 23:10:35,926 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 73.8ms TimeCoverageRelationStatistics Valid=83, Invalid=157, Unknown=0, NotChecked=0, Total=240 [2021-07-09 23:10:36,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111253 states. [2021-07-09 23:10:37,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111253 to 49052. [2021-07-09 23:10:37,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49052 states, 49051 states have (on average 2.6135043118386987) internal successors, (128195), 49051 states have internal predecessors, (128195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 23:10:37,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49052 states to 49052 states and 128195 transitions. [2021-07-09 23:10:37,752 INFO L78 Accepts]: Start accepts. Automaton has 49052 states and 128195 transitions. Word has length 46 [2021-07-09 23:10:37,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 23:10:37,753 INFO L482 AbstractCegarLoop]: Abstraction has 49052 states and 128195 transitions. [2021-07-09 23:10:37,753 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 4.6) internal successors, (46), 9 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 23:10:37,753 INFO L276 IsEmpty]: Start isEmpty. Operand 49052 states and 128195 transitions. [2021-07-09 23:10:38,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-07-09 23:10:38,123 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 23:10:38,123 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 23:10:38,123 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2021-07-09 23:10:38,124 INFO L430 AbstractCegarLoop]: === Iteration 45 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-07-09 23:10:38,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 23:10:38,124 INFO L82 PathProgramCache]: Analyzing trace with hash -1060947872, now seen corresponding path program 45 times [2021-07-09 23:10:38,124 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 23:10:38,124 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1877924010] [2021-07-09 23:10:38,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 23:10:38,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 23:10:38,184 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:10:38,192 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-09 23:10:38,195 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:10:38,195 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:10:38,198 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:10:38,199 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-09 23:10:38,202 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:10:38,203 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:10:38,203 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:10:38,203 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:10:38,211 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:10:38,211 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:10:38,216 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:10:38,227 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:10:38,233 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:10:38,233 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:10:38,233 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:10:38,234 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:10:38,239 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:10:38,240 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:10:38,247 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:10:38,247 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:10:38,270 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:10:38,270 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 23:10:38,271 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 23:10:38,271 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 23:10:38,271 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1877924010] [2021-07-09 23:10:38,271 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1877924010] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 23:10:38,271 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 23:10:38,271 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-07-09 23:10:38,272 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743490048] [2021-07-09 23:10:38,272 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-07-09 23:10:38,272 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 23:10:38,272 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-07-09 23:10:38,272 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2021-07-09 23:10:38,272 INFO L87 Difference]: Start difference. First operand 49052 states and 128195 transitions. Second operand has 11 states, 11 states have (on average 4.181818181818182) internal successors, (46), 10 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 23:10:38,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 23:10:38,909 INFO L93 Difference]: Finished difference Result 95297 states and 251616 transitions. [2021-07-09 23:10:38,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-09 23:10:38,909 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.181818181818182) internal successors, (46), 10 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2021-07-09 23:10:38,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 23:10:39,530 INFO L225 Difference]: With dead ends: 95297 [2021-07-09 23:10:39,531 INFO L226 Difference]: Without dead ends: 94201 [2021-07-09 23:10:39,531 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 91.4ms TimeCoverageRelationStatistics Valid=95, Invalid=177, Unknown=0, NotChecked=0, Total=272 [2021-07-09 23:10:39,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94201 states. [2021-07-09 23:10:40,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94201 to 47112. [2021-07-09 23:10:40,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47112 states, 47111 states have (on average 2.603128780964106) internal successors, (122636), 47111 states have internal predecessors, (122636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 23:10:41,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47112 states to 47112 states and 122636 transitions. [2021-07-09 23:10:41,214 INFO L78 Accepts]: Start accepts. Automaton has 47112 states and 122636 transitions. Word has length 46 [2021-07-09 23:10:41,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 23:10:41,215 INFO L482 AbstractCegarLoop]: Abstraction has 47112 states and 122636 transitions. [2021-07-09 23:10:41,215 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 4.181818181818182) internal successors, (46), 10 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 23:10:41,215 INFO L276 IsEmpty]: Start isEmpty. Operand 47112 states and 122636 transitions. [2021-07-09 23:10:41,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-07-09 23:10:41,322 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 23:10:41,322 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 23:10:41,323 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2021-07-09 23:10:41,323 INFO L430 AbstractCegarLoop]: === Iteration 46 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-07-09 23:10:41,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 23:10:41,323 INFO L82 PathProgramCache]: Analyzing trace with hash 1731912510, now seen corresponding path program 46 times [2021-07-09 23:10:41,323 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 23:10:41,323 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [102956531] [2021-07-09 23:10:41,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 23:10:41,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 23:10:41,351 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:10:41,351 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-09 23:10:41,353 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:10:41,353 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:10:41,356 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:10:41,356 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-09 23:10:41,360 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:10:41,360 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:10:41,360 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:10:41,360 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:10:41,364 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:10:41,364 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:10:41,368 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:10:41,368 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:10:41,373 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:10:41,374 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:10:41,378 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:10:41,379 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:10:41,385 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:10:41,386 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:10:41,392 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:10:41,392 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:10:41,399 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:10:41,400 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 23:10:41,400 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 23:10:41,400 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 23:10:41,400 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [102956531] [2021-07-09 23:10:41,400 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [102956531] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 23:10:41,400 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 23:10:41,400 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-07-09 23:10:41,401 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1472192858] [2021-07-09 23:10:41,401 INFO L462 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-07-09 23:10:41,401 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 23:10:41,401 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-07-09 23:10:41,401 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2021-07-09 23:10:41,401 INFO L87 Difference]: Start difference. First operand 47112 states and 122636 transitions. Second operand has 12 states, 12 states have (on average 3.8333333333333335) internal successors, (46), 11 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 23:10:42,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 23:10:42,415 INFO L93 Difference]: Finished difference Result 92205 states and 243163 transitions. [2021-07-09 23:10:42,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-09 23:10:42,416 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.8333333333333335) internal successors, (46), 11 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2021-07-09 23:10:42,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 23:10:42,672 INFO L225 Difference]: With dead ends: 92205 [2021-07-09 23:10:42,672 INFO L226 Difference]: Without dead ends: 91285 [2021-07-09 23:10:42,673 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 102.2ms TimeCoverageRelationStatistics Valid=158, Invalid=304, Unknown=0, NotChecked=0, Total=462 [2021-07-09 23:10:42,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91285 states. [2021-07-09 23:10:44,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91285 to 45808. [2021-07-09 23:10:44,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45808 states, 45807 states have (on average 2.605955421660445) internal successors, (119371), 45807 states have internal predecessors, (119371), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 23:10:44,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45808 states to 45808 states and 119371 transitions. [2021-07-09 23:10:44,238 INFO L78 Accepts]: Start accepts. Automaton has 45808 states and 119371 transitions. Word has length 46 [2021-07-09 23:10:44,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 23:10:44,238 INFO L482 AbstractCegarLoop]: Abstraction has 45808 states and 119371 transitions. [2021-07-09 23:10:44,238 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 3.8333333333333335) internal successors, (46), 11 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 23:10:44,238 INFO L276 IsEmpty]: Start isEmpty. Operand 45808 states and 119371 transitions. [2021-07-09 23:10:44,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-07-09 23:10:44,319 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 23:10:44,319 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 23:10:44,319 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2021-07-09 23:10:44,319 INFO L430 AbstractCegarLoop]: === Iteration 47 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-07-09 23:10:44,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 23:10:44,319 INFO L82 PathProgramCache]: Analyzing trace with hash -2042975496, now seen corresponding path program 47 times [2021-07-09 23:10:44,319 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 23:10:44,319 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1523233701] [2021-07-09 23:10:44,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 23:10:44,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 23:10:44,329 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:10:44,330 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-09 23:10:44,332 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:10:44,332 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:10:44,335 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:10:44,335 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-09 23:10:44,339 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:10:44,339 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:10:44,339 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:10:44,340 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:10:44,343 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:10:44,344 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:10:44,348 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:10:44,348 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:10:44,353 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:10:44,353 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 23:10:44,354 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 23:10:44,354 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 23:10:44,354 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1523233701] [2021-07-09 23:10:44,354 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1523233701] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 23:10:44,354 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 23:10:44,354 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-07-09 23:10:44,354 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936110906] [2021-07-09 23:10:44,354 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-07-09 23:10:44,354 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 23:10:44,355 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-07-09 23:10:44,355 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2021-07-09 23:10:44,355 INFO L87 Difference]: Start difference. First operand 45808 states and 119371 transitions. Second operand has 8 states, 8 states have (on average 5.75) internal successors, (46), 7 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 23:10:45,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 23:10:45,108 INFO L93 Difference]: Finished difference Result 78685 states and 209535 transitions. [2021-07-09 23:10:45,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-09 23:10:45,108 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.75) internal successors, (46), 7 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2021-07-09 23:10:45,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 23:10:45,514 INFO L225 Difference]: With dead ends: 78685 [2021-07-09 23:10:45,515 INFO L226 Difference]: Without dead ends: 77461 [2021-07-09 23:10:45,515 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 24.1ms TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-07-09 23:10:45,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77461 states. [2021-07-09 23:10:46,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77461 to 35518. [2021-07-09 23:10:46,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35518 states, 35517 states have (on average 2.611397359011178) internal successors, (92749), 35517 states have internal predecessors, (92749), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 23:10:46,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35518 states to 35518 states and 92749 transitions. [2021-07-09 23:10:46,940 INFO L78 Accepts]: Start accepts. Automaton has 35518 states and 92749 transitions. Word has length 46 [2021-07-09 23:10:46,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 23:10:46,940 INFO L482 AbstractCegarLoop]: Abstraction has 35518 states and 92749 transitions. [2021-07-09 23:10:46,940 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 5.75) internal successors, (46), 7 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 23:10:46,940 INFO L276 IsEmpty]: Start isEmpty. Operand 35518 states and 92749 transitions. [2021-07-09 23:10:47,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-07-09 23:10:47,002 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 23:10:47,003 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 23:10:47,003 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2021-07-09 23:10:47,003 INFO L430 AbstractCegarLoop]: === Iteration 48 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-07-09 23:10:47,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 23:10:47,003 INFO L82 PathProgramCache]: Analyzing trace with hash 1202300280, now seen corresponding path program 48 times [2021-07-09 23:10:47,003 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 23:10:47,003 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1457685830] [2021-07-09 23:10:47,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 23:10:47,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 23:10:47,014 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:10:47,015 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-09 23:10:47,018 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:10:47,019 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:10:47,021 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:10:47,022 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-09 23:10:47,025 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:10:47,025 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:10:47,026 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:10:47,026 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:10:47,029 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:10:47,029 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:10:47,034 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:10:47,034 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:10:47,038 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:10:47,039 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:10:47,044 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:10:47,044 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 23:10:47,044 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 23:10:47,044 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 23:10:47,044 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1457685830] [2021-07-09 23:10:47,044 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1457685830] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 23:10:47,045 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 23:10:47,045 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-07-09 23:10:47,045 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1281526688] [2021-07-09 23:10:47,045 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-07-09 23:10:47,045 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 23:10:47,045 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-07-09 23:10:47,045 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-07-09 23:10:47,045 INFO L87 Difference]: Start difference. First operand 35518 states and 92749 transitions. Second operand has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 8 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 23:10:47,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 23:10:47,699 INFO L93 Difference]: Finished difference Result 41817 states and 106272 transitions. [2021-07-09 23:10:47,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-09 23:10:47,713 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 8 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2021-07-09 23:10:47,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 23:10:47,814 INFO L225 Difference]: With dead ends: 41817 [2021-07-09 23:10:47,814 INFO L226 Difference]: Without dead ends: 38277 [2021-07-09 23:10:47,814 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 38.1ms TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2021-07-09 23:10:47,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38277 states. [2021-07-09 23:10:48,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38277 to 18210. [2021-07-09 23:10:48,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18210 states, 18209 states have (on average 2.523532319182822) internal successors, (45951), 18209 states have internal predecessors, (45951), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 23:10:48,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18210 states to 18210 states and 45951 transitions. [2021-07-09 23:10:48,235 INFO L78 Accepts]: Start accepts. Automaton has 18210 states and 45951 transitions. Word has length 46 [2021-07-09 23:10:48,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 23:10:48,235 INFO L482 AbstractCegarLoop]: Abstraction has 18210 states and 45951 transitions. [2021-07-09 23:10:48,235 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 8 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 23:10:48,235 INFO L276 IsEmpty]: Start isEmpty. Operand 18210 states and 45951 transitions. [2021-07-09 23:10:48,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-07-09 23:10:48,518 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 23:10:48,518 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 23:10:48,519 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2021-07-09 23:10:48,519 INFO L430 AbstractCegarLoop]: === Iteration 49 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-07-09 23:10:48,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 23:10:48,519 INFO L82 PathProgramCache]: Analyzing trace with hash -986479002, now seen corresponding path program 49 times [2021-07-09 23:10:48,519 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 23:10:48,519 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1827478299] [2021-07-09 23:10:48,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 23:10:48,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 23:10:48,536 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:10:48,537 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-09 23:10:48,539 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:10:48,539 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:10:48,557 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:10:48,557 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-09 23:10:48,561 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:10:48,561 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:10:48,561 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:10:48,562 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:10:48,565 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:10:48,566 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:10:48,570 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:10:48,570 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:10:48,575 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:10:48,576 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:10:48,582 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:10:48,582 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:10:48,589 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:10:48,589 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 23:10:48,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 23:10:48,590 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 23:10:48,590 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1827478299] [2021-07-09 23:10:48,590 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1827478299] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 23:10:48,590 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 23:10:48,590 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-07-09 23:10:48,590 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1657870233] [2021-07-09 23:10:48,590 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-07-09 23:10:48,591 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 23:10:48,591 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-07-09 23:10:48,591 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2021-07-09 23:10:48,591 INFO L87 Difference]: Start difference. First operand 18210 states and 45951 transitions. Second operand has 10 states, 10 states have (on average 4.6) internal successors, (46), 9 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 23:10:48,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 23:10:48,901 INFO L93 Difference]: Finished difference Result 13373 states and 29800 transitions. [2021-07-09 23:10:48,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-09 23:10:48,901 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.6) internal successors, (46), 9 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2021-07-09 23:10:48,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 23:10:48,914 INFO L225 Difference]: With dead ends: 13373 [2021-07-09 23:10:48,914 INFO L226 Difference]: Without dead ends: 7419 [2021-07-09 23:10:48,915 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 80.6ms TimeCoverageRelationStatistics Valid=83, Invalid=157, Unknown=0, NotChecked=0, Total=240 [2021-07-09 23:10:48,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7419 states. [2021-07-09 23:10:48,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7419 to 4395. [2021-07-09 23:10:48,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4395 states, 4394 states have (on average 2.324988620846609) internal successors, (10216), 4394 states have internal predecessors, (10216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 23:10:48,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4395 states to 4395 states and 10216 transitions. [2021-07-09 23:10:48,993 INFO L78 Accepts]: Start accepts. Automaton has 4395 states and 10216 transitions. Word has length 46 [2021-07-09 23:10:48,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 23:10:48,994 INFO L482 AbstractCegarLoop]: Abstraction has 4395 states and 10216 transitions. [2021-07-09 23:10:48,994 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 4.6) internal successors, (46), 9 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 23:10:48,994 INFO L276 IsEmpty]: Start isEmpty. Operand 4395 states and 10216 transitions. [2021-07-09 23:10:48,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-07-09 23:10:49,000 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 23:10:49,000 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 23:10:49,000 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2021-07-09 23:10:49,000 INFO L430 AbstractCegarLoop]: === Iteration 50 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-07-09 23:10:49,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 23:10:49,000 INFO L82 PathProgramCache]: Analyzing trace with hash -735122702, now seen corresponding path program 50 times [2021-07-09 23:10:49,000 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 23:10:49,001 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [297130813] [2021-07-09 23:10:49,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 23:10:49,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 23:10:49,011 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:10:49,011 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-09 23:10:49,013 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:10:49,013 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:10:49,016 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:10:49,017 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-09 23:10:49,020 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:10:49,020 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:10:49,021 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:10:49,021 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:10:49,024 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:10:49,025 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:10:49,029 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:10:49,029 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:10:49,034 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:10:49,035 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:10:49,040 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:10:49,040 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:10:49,046 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:10:49,046 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:10:49,053 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:10:49,053 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:10:49,060 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:10:49,061 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 23:10:49,061 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 23:10:49,061 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 23:10:49,061 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [297130813] [2021-07-09 23:10:49,061 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [297130813] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 23:10:49,061 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 23:10:49,061 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-07-09 23:10:49,061 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1196341216] [2021-07-09 23:10:49,062 INFO L462 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-07-09 23:10:49,062 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 23:10:49,062 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-07-09 23:10:49,062 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2021-07-09 23:10:49,062 INFO L87 Difference]: Start difference. First operand 4395 states and 10216 transitions. Second operand has 12 states, 12 states have (on average 3.8333333333333335) internal successors, (46), 11 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 23:10:49,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 23:10:49,365 INFO L93 Difference]: Finished difference Result 4435 states and 8614 transitions. [2021-07-09 23:10:49,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 23:10:49,366 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.8333333333333335) internal successors, (46), 11 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2021-07-09 23:10:49,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 23:10:49,367 INFO L225 Difference]: With dead ends: 4435 [2021-07-09 23:10:49,367 INFO L226 Difference]: Without dead ends: 1275 [2021-07-09 23:10:49,368 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 98.2ms TimeCoverageRelationStatistics Valid=144, Invalid=276, Unknown=0, NotChecked=0, Total=420 [2021-07-09 23:10:49,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1275 states. [2021-07-09 23:10:49,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1275 to 887. [2021-07-09 23:10:49,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 887 states, 886 states have (on average 1.9390519187358917) internal successors, (1718), 886 states have internal predecessors, (1718), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 23:10:49,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 887 states to 887 states and 1718 transitions. [2021-07-09 23:10:49,378 INFO L78 Accepts]: Start accepts. Automaton has 887 states and 1718 transitions. Word has length 46 [2021-07-09 23:10:49,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 23:10:49,378 INFO L482 AbstractCegarLoop]: Abstraction has 887 states and 1718 transitions. [2021-07-09 23:10:49,378 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 3.8333333333333335) internal successors, (46), 11 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 23:10:49,378 INFO L276 IsEmpty]: Start isEmpty. Operand 887 states and 1718 transitions. [2021-07-09 23:10:49,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-07-09 23:10:49,379 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 23:10:49,379 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 23:10:49,379 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2021-07-09 23:10:49,379 INFO L430 AbstractCegarLoop]: === Iteration 51 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-07-09 23:10:49,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 23:10:49,379 INFO L82 PathProgramCache]: Analyzing trace with hash -2056481392, now seen corresponding path program 51 times [2021-07-09 23:10:49,380 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 23:10:49,380 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [493046867] [2021-07-09 23:10:49,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 23:10:49,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 23:10:49,391 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:10:49,392 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-09 23:10:49,394 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:10:49,394 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:10:49,397 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:10:49,397 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:10:49,401 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:10:49,401 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:10:49,405 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:10:49,405 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:10:49,410 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:10:49,411 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:10:49,416 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:10:49,416 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:10:49,422 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:10:49,422 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:10:49,428 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:10:49,428 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:10:49,434 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:10:49,434 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:10:49,441 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:10:49,442 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 23:10:49,449 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 23:10:49,449 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 23:10:49,450 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 23:10:49,450 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 23:10:49,450 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [493046867] [2021-07-09 23:10:49,450 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [493046867] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 23:10:49,450 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 23:10:49,450 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-07-09 23:10:49,450 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [810622918] [2021-07-09 23:10:49,450 INFO L462 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-07-09 23:10:49,450 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 23:10:49,451 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-07-09 23:10:49,451 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2021-07-09 23:10:49,451 INFO L87 Difference]: Start difference. First operand 887 states and 1718 transitions. Second operand has 13 states, 13 states have (on average 3.5384615384615383) internal successors, (46), 12 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 23:10:49,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 23:10:49,712 INFO L93 Difference]: Finished difference Result 1058 states and 1829 transitions. [2021-07-09 23:10:49,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 23:10:49,712 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.5384615384615383) internal successors, (46), 12 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2021-07-09 23:10:49,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 23:10:49,712 INFO L225 Difference]: With dead ends: 1058 [2021-07-09 23:10:49,713 INFO L226 Difference]: Without dead ends: 0 [2021-07-09 23:10:49,713 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 155.8ms TimeCoverageRelationStatistics Valid=151, Invalid=311, Unknown=0, NotChecked=0, Total=462 [2021-07-09 23:10:49,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-07-09 23:10:49,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-07-09 23:10:49,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 23:10:49,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-07-09 23:10:49,713 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 46 [2021-07-09 23:10:49,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 23:10:49,713 INFO L482 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-07-09 23:10:49,713 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 3.5384615384615383) internal successors, (46), 12 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 23:10:49,713 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-07-09 23:10:49,714 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-07-09 23:10:49,714 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2021-07-09 23:10:49,715 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-07-09 23:10:49,716 INFO L202 PluginConnector]: Adding new model ticket-6.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.07 11:10:49 BasicIcfg [2021-07-09 23:10:49,716 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-07-09 23:10:49,717 INFO L168 Benchmark]: Toolchain (without parser) took 273170.83 ms. Allocated memory was 181.4 MB in the beginning and 8.0 GB in the end (delta: 7.8 GB). Free memory was 160.7 MB in the beginning and 7.1 GB in the end (delta: -6.9 GB). Peak memory consumption was 895.0 MB. Max. memory is 8.0 GB. [2021-07-09 23:10:49,717 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.15 ms. Allocated memory is still 181.4 MB. Free memory is still 161.9 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-07-09 23:10:49,717 INFO L168 Benchmark]: Boogie Procedure Inliner took 28.14 ms. Allocated memory is still 181.4 MB. Free memory was 160.6 MB in the beginning and 159.1 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-07-09 23:10:49,717 INFO L168 Benchmark]: Boogie Preprocessor took 33.73 ms. Allocated memory is still 181.4 MB. Free memory was 159.1 MB in the beginning and 158.2 MB in the end (delta: 946.8 kB). There was no memory consumed. Max. memory is 8.0 GB. [2021-07-09 23:10:49,717 INFO L168 Benchmark]: RCFGBuilder took 275.32 ms. Allocated memory is still 181.4 MB. Free memory was 158.1 MB in the beginning and 141.6 MB in the end (delta: 16.5 MB). Peak memory consumption was 15.7 MB. Max. memory is 8.0 GB. [2021-07-09 23:10:49,717 INFO L168 Benchmark]: TraceAbstraction took 272827.86 ms. Allocated memory was 181.4 MB in the beginning and 8.0 GB in the end (delta: 7.8 GB). Free memory was 141.0 MB in the beginning and 7.1 GB in the end (delta: -6.9 GB). Peak memory consumption was 875.1 MB. Max. memory is 8.0 GB. [2021-07-09 23:10:49,718 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.15 ms. Allocated memory is still 181.4 MB. Free memory is still 161.9 MB. There was no memory consumed. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 28.14 ms. Allocated memory is still 181.4 MB. Free memory was 160.6 MB in the beginning and 159.1 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 33.73 ms. Allocated memory is still 181.4 MB. Free memory was 159.1 MB in the beginning and 158.2 MB in the end (delta: 946.8 kB). There was no memory consumed. Max. memory is 8.0 GB. * RCFGBuilder took 275.32 ms. Allocated memory is still 181.4 MB. Free memory was 158.1 MB in the beginning and 141.6 MB in the end (delta: 16.5 MB). Peak memory consumption was 15.7 MB. Max. memory is 8.0 GB. * TraceAbstraction took 272827.86 ms. Allocated memory was 181.4 MB in the beginning and 8.0 GB in the end (delta: 7.8 GB). Free memory was 141.0 MB in the beginning and 7.1 GB in the end (delta: -6.9 GB). Peak memory consumption was 875.1 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 514839, positive: 477626, positive conditional: 477626, positive unconditional: 0, negative: 37213, negative conditional: 37213, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 514839, positive: 477626, positive conditional: 0, positive unconditional: 477626, negative: 37213, negative conditional: 0, negative unconditional: 37213, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 745, positive: 687, positive conditional: 0, positive unconditional: 687, negative: 58, negative conditional: 0, negative unconditional: 58, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 745, positive: 633, positive conditional: 0, positive unconditional: 633, negative: 112, negative conditional: 0, negative unconditional: 112, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 112, positive: 54, positive conditional: 0, positive unconditional: 54, negative: 58, negative conditional: 0, negative unconditional: 58, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 304, positive: 171, positive conditional: 0, positive unconditional: 171, negative: 133, negative conditional: 0, negative unconditional: 133, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 514839, positive: 476939, positive conditional: 0, positive unconditional: 476939, negative: 37155, negative conditional: 0, negative unconditional: 37155, unknown: 745, unknown conditional: 0, unknown unconditional: 745] , Statistics on independence cache: Total cache size (in pairs): 745, Positive cache size: 687, Positive conditional cache size: 0, Positive unconditional cache size: 687, Negative cache size: 58, Negative conditional cache size: 0, Negative unconditional cache size: 58, Independence queries for same thread: 0 - PositiveResult [Line: 110]: assertion always holds For all program executions holds that assertion always holds at this location - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 13 procedures, 98 locations, 7 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 272726.6ms, OverallIterations: 51, TraceHistogramMax: 1, EmptinessCheckTime: 15136.3ms, AutomataDifference: 103903.8ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 6107.4ms, PartialOrderReductionTime: 6078.7ms, HoareTripleCheckerStatistics: 4544 SDtfs, 8930 SDslu, 18568 SDs, 0 SdLazy, 26789 SolverSat, 4648 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 12484.5ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 920 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 778 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1964 ImplicationChecksByTransitivity, 5524.0ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=86044occurred in iteration=30, InterpolantAutomatonStates: 722, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 143090.6ms AutomataMinimizationTime, 51 MinimizatonAttempts, 2945226 StatesRemovedByMinimization, 50 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 81.2ms SsaConstructionTime, 417.2ms SatisfiabilityAnalysisTime, 3605.9ms InterpolantComputationTime, 2346 NumberOfCodeBlocks, 2346 NumberOfCodeBlocksAsserted, 51 NumberOfCheckSat, 2295 ConstructedInterpolants, 0 QuantifiedInterpolants, 6966 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 51 InterpolantComputations, 51 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...