/usr/bin/java -Xmx16000000000 -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-SemanticLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/chl/collitem-subst.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-7cd14b8b9f04096d8ddfd3d9cd8a4ac590fe5404-7cd14b8 [2021-03-11 15:35:02,749 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-11 15:35:02,750 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-11 15:35:02,777 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-11 15:35:02,777 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-11 15:35:02,778 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-11 15:35:02,780 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-11 15:35:02,787 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-11 15:35:02,789 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-11 15:35:02,793 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-11 15:35:02,793 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-11 15:35:02,794 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-11 15:35:02,795 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-11 15:35:02,797 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-11 15:35:02,798 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-11 15:35:02,799 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-11 15:35:02,800 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-11 15:35:02,802 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-11 15:35:02,804 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-11 15:35:02,805 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-11 15:35:02,806 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-11 15:35:02,808 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-11 15:35:02,809 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-11 15:35:02,810 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-11 15:35:02,814 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-03-11 15:35:02,816 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-03-11 15:35:02,817 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-03-11 15:35:02,817 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-03-11 15:35:02,817 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-03-11 15:35:02,818 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-03-11 15:35:02,818 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-03-11 15:35:02,819 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-03-11 15:35:02,819 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-03-11 15:35:02,819 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-11 15:35:02,820 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-11 15:35:02,820 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-11 15:35:02,824 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-SemanticLbe.epf [2021-03-11 15:35:02,858 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-11 15:35:02,858 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-11 15:35:02,861 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-11 15:35:02,861 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-11 15:35:02,861 INFO L138 SettingsManager]: * Use SBE=true [2021-03-11 15:35:02,862 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-11 15:35:02,862 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-11 15:35:02,862 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-11 15:35:02,862 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-11 15:35:02,862 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-11 15:35:02,863 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-11 15:35:02,863 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-11 15:35:02,863 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-11 15:35:02,863 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-11 15:35:02,863 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-11 15:35:02,863 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-11 15:35:02,863 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-11 15:35:02,864 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-11 15:35:02,864 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-11 15:35:02,864 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-11 15:35:02,864 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-11 15:35:02,864 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-11 15:35:02,864 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-11 15:35:02,864 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-11 15:35:02,865 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-11 15:35:02,865 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-11 15:35:02,865 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-11 15:35:02,865 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-03-11 15:35:02,865 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-11 15:35:03,163 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-11 15:35:03,182 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-11 15:35:03,184 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-11 15:35:03,185 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-03-11 15:35:03,185 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-03-11 15:35:03,186 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/chl/collitem-subst.wvr.bpl [2021-03-11 15:35:03,186 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/chl/collitem-subst.wvr.bpl' [2021-03-11 15:35:03,215 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-11 15:35:03,219 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-03-11 15:35:03,220 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-11 15:35:03,220 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-11 15:35:03,220 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-11 15:35:03,229 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "collitem-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 03:35:03" (1/1) ... [2021-03-11 15:35:03,234 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "collitem-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 03:35:03" (1/1) ... [2021-03-11 15:35:03,239 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-11 15:35:03,241 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-11 15:35:03,241 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-11 15:35:03,241 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-11 15:35:03,246 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "collitem-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 03:35:03" (1/1) ... [2021-03-11 15:35:03,246 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "collitem-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 03:35:03" (1/1) ... [2021-03-11 15:35:03,250 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "collitem-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 03:35:03" (1/1) ... [2021-03-11 15:35:03,250 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "collitem-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 03:35:03" (1/1) ... [2021-03-11 15:35:03,252 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "collitem-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 03:35:03" (1/1) ... [2021-03-11 15:35:03,252 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "collitem-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 03:35:03" (1/1) ... [2021-03-11 15:35:03,253 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "collitem-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 03:35:03" (1/1) ... [2021-03-11 15:35:03,256 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-11 15:35:03,258 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-11 15:35:03,258 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-11 15:35:03,258 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-11 15:35:03,259 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "collitem-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 03:35:03" (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 [2021-03-11 15:35:03,318 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-03-11 15:35:03,318 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-03-11 15:35:03,318 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-03-11 15:35:03,319 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-03-11 15:35:03,319 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-03-11 15:35:03,319 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-03-11 15:35:03,319 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-03-11 15:35:03,319 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-11 15:35:03,319 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-11 15:35:03,319 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-03-11 15:35:03,319 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-03-11 15:35:03,319 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-03-11 15:35:03,320 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-11 15:35:03,597 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-11 15:35:03,597 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-03-11 15:35:03,599 INFO L202 PluginConnector]: Adding new model collitem-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.03 03:35:03 BoogieIcfgContainer [2021-03-11 15:35:03,599 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-11 15:35:03,600 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-11 15:35:03,600 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-11 15:35:03,602 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-11 15:35:03,602 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "collitem-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 03:35:03" (1/2) ... [2021-03-11 15:35:03,603 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71322e6e and model type collitem-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.03 03:35:03, skipping insertion in model container [2021-03-11 15:35:03,603 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "collitem-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.03 03:35:03" (2/2) ... [2021-03-11 15:35:03,604 INFO L111 eAbstractionObserver]: Analyzing ICFG collitem-subst.wvr.bpl [2021-03-11 15:35:03,607 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-03-11 15:35:03,608 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-11 15:35:03,610 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-11 15:35:03,611 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-11 15:35:03,666 INFO L149 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-03-11 15:35:03,679 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-03-11 15:35:03,715 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-11 15:35:03,715 INFO L377 AbstractCegarLoop]: Hoare is true [2021-03-11 15:35:03,715 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-11 15:35:03,715 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-11 15:35:03,715 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-11 15:35:03,715 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-11 15:35:03,716 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-11 15:35:03,716 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-11 15:35:03,724 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-11 15:35:03,735 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 29 places, 19 transitions, 62 flow [2021-03-11 15:35:03,742 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 29 places, 19 transitions, 62 flow [2021-03-11 15:35:03,743 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 29 places, 19 transitions, 62 flow [2021-03-11 15:35:03,778 INFO L129 PetriNetUnfolder]: 0/16 cut-off events. [2021-03-11 15:35:03,779 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-03-11 15:35:03,780 INFO L84 FinitePrefix]: Finished finitePrefix Result has 29 conditions, 16 events. 0/16 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 14 event pairs, 0 based on Foata normal form. 0/15 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2021-03-11 15:35:03,783 INFO L116 LiptonReduction]: Number of co-enabled transitions 48 [2021-03-11 15:35:03,979 INFO L131 LiptonReduction]: Checked pairs total: 54 [2021-03-11 15:35:03,979 INFO L133 LiptonReduction]: Total number of compositions: 6 [2021-03-11 15:35:03,991 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 24 places, 14 transitions, 52 flow [2021-03-11 15:35:03,997 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 24 states, 22 states have (on average 1.7272727272727273) internal successors, (38), 23 states have internal predecessors, (38), 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) [2021-03-11 15:35:03,999 INFO L276 IsEmpty]: Start isEmpty. Operand has 24 states, 22 states have (on average 1.7272727272727273) internal successors, (38), 23 states have internal predecessors, (38), 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) [2021-03-11 15:35:04,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-03-11 15:35:04,008 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 15:35:04,009 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 15:35:04,009 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-11 15:35:04,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 15:35:04,013 INFO L82 PathProgramCache]: Analyzing trace with hash 648784382, now seen corresponding path program 1 times [2021-03-11 15:35:04,019 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 15:35:04,019 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1168406717] [2021-03-11 15:35:04,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 15:35:04,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 15:35:04,398 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 15:35:04,399 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 15:35:04,498 INFO L142 QuantifierPusher]: treesize reduction 1571, result has 13.7 percent of original size [2021-03-11 15:35:04,507 INFO L147 QuantifierPusher]: treesize reduction 6, result has 97.6 percent of original size 244 [2021-03-11 15:35:04,711 WARN L205 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 50 [2021-03-11 15:35:04,757 INFO L142 QuantifierPusher]: treesize reduction 2459, result has 22.0 percent of original size [2021-03-11 15:35:04,771 INFO L147 QuantifierPusher]: treesize reduction 122, result has 82.4 percent of original size 572 [2021-03-11 15:35:05,128 WARN L205 SmtUtils]: Spent 343.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 78 [2021-03-11 15:35:05,131 INFO L142 QuantifierPusher]: treesize reduction 226, result has 27.8 percent of original size [2021-03-11 15:35:05,132 INFO L147 QuantifierPusher]: treesize reduction 4, result has 95.4 percent of original size 83 [2021-03-11 15:35:05,193 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 15:35:05,193 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1168406717] [2021-03-11 15:35:05,194 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 15:35:05,194 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-11 15:35:05,194 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2542688] [2021-03-11 15:35:05,197 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-11 15:35:05,197 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 15:35:05,205 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-11 15:35:05,205 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-03-11 15:35:05,207 INFO L87 Difference]: Start difference. First operand has 24 states, 22 states have (on average 1.7272727272727273) internal successors, (38), 23 states have internal predecessors, (38), 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 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 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) [2021-03-11 15:35:05,405 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2021-03-11 15:35:05,590 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 132 [2021-03-11 15:35:05,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 15:35:05,597 INFO L93 Difference]: Finished difference Result 36 states and 50 transitions. [2021-03-11 15:35:05,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-11 15:35:05,599 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 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 10 [2021-03-11 15:35:05,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 15:35:05,603 INFO L225 Difference]: With dead ends: 36 [2021-03-11 15:35:05,603 INFO L226 Difference]: Without dead ends: 28 [2021-03-11 15:35:05,604 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 935.1ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-03-11 15:35:05,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2021-03-11 15:35:05,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 23. [2021-03-11 15:35:05,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 22 states have (on average 1.5454545454545454) internal successors, (34), 22 states have internal predecessors, (34), 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) [2021-03-11 15:35:05,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 34 transitions. [2021-03-11 15:35:05,622 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 34 transitions. Word has length 10 [2021-03-11 15:35:05,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 15:35:05,622 INFO L480 AbstractCegarLoop]: Abstraction has 23 states and 34 transitions. [2021-03-11 15:35:05,622 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 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) [2021-03-11 15:35:05,622 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 34 transitions. [2021-03-11 15:35:05,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-03-11 15:35:05,623 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 15:35:05,623 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 15:35:05,623 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-11 15:35:05,623 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-11 15:35:05,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 15:35:05,623 INFO L82 PathProgramCache]: Analyzing trace with hash 1563664818, now seen corresponding path program 2 times [2021-03-11 15:35:05,624 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 15:35:05,624 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1874718150] [2021-03-11 15:35:05,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 15:35:05,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 15:35:05,724 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 15:35:05,725 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 15:35:05,774 INFO L142 QuantifierPusher]: treesize reduction 2128, result has 10.5 percent of original size [2021-03-11 15:35:05,776 INFO L147 QuantifierPusher]: treesize reduction 6, result has 97.6 percent of original size 244 [2021-03-11 15:35:05,933 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 50 [2021-03-11 15:35:06,079 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 126 [2021-03-11 15:35:06,080 INFO L142 QuantifierPusher]: treesize reduction 15566, result has 10.5 percent of original size [2021-03-11 15:35:06,092 INFO L147 QuantifierPusher]: treesize reduction 738, result has 59.6 percent of original size 1088 [2021-03-11 15:35:06,571 WARN L205 SmtUtils]: Spent 469.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 77 [2021-03-11 15:35:06,579 INFO L142 QuantifierPusher]: treesize reduction 627, result has 34.1 percent of original size [2021-03-11 15:35:06,581 INFO L147 QuantifierPusher]: treesize reduction 74, result has 77.2 percent of original size 250 [2021-03-11 15:35:06,697 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 18 [2021-03-11 15:35:06,698 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 15:35:06,698 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1874718150] [2021-03-11 15:35:06,698 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 15:35:06,698 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-11 15:35:06,698 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1235182183] [2021-03-11 15:35:06,699 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-11 15:35:06,699 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 15:35:06,700 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-11 15:35:06,700 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-03-11 15:35:06,700 INFO L87 Difference]: Start difference. First operand 23 states and 34 transitions. Second operand has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 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) [2021-03-11 15:35:06,863 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2021-03-11 15:35:07,029 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2021-03-11 15:35:07,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 15:35:07,042 INFO L93 Difference]: Finished difference Result 34 states and 44 transitions. [2021-03-11 15:35:07,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-11 15:35:07,043 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 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 10 [2021-03-11 15:35:07,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 15:35:07,043 INFO L225 Difference]: With dead ends: 34 [2021-03-11 15:35:07,043 INFO L226 Difference]: Without dead ends: 24 [2021-03-11 15:35:07,044 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1068.3ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-03-11 15:35:07,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2021-03-11 15:35:07,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 19. [2021-03-11 15:35:07,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 18 states have (on average 1.4444444444444444) internal successors, (26), 18 states have internal predecessors, (26), 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) [2021-03-11 15:35:07,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 26 transitions. [2021-03-11 15:35:07,046 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 26 transitions. Word has length 10 [2021-03-11 15:35:07,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 15:35:07,046 INFO L480 AbstractCegarLoop]: Abstraction has 19 states and 26 transitions. [2021-03-11 15:35:07,047 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 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) [2021-03-11 15:35:07,047 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 26 transitions. [2021-03-11 15:35:07,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-03-11 15:35:07,047 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 15:35:07,047 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 15:35:07,047 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-11 15:35:07,047 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-11 15:35:07,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 15:35:07,048 INFO L82 PathProgramCache]: Analyzing trace with hash -29523470, now seen corresponding path program 3 times [2021-03-11 15:35:07,048 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 15:35:07,048 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [817482845] [2021-03-11 15:35:07,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 15:35:07,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 15:35:07,111 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 15:35:07,112 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 15:35:07,550 WARN L205 SmtUtils]: Spent 433.00 ms on a formula simplification. DAG size of input: 440 DAG size of output: 208 [2021-03-11 15:35:07,551 INFO L142 QuantifierPusher]: treesize reduction 99156, result has 10.7 percent of original size [2021-03-11 15:35:07,597 INFO L147 QuantifierPusher]: treesize reduction 8276, result has 30.4 percent of original size 3610 [2021-03-11 15:35:08,095 WARN L205 SmtUtils]: Spent 489.00 ms on a formula simplification. DAG size of input: 186 DAG size of output: 45 [2021-03-11 15:35:08,313 WARN L205 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 120 [2021-03-11 15:35:08,314 INFO L142 QuantifierPusher]: treesize reduction 44367, result has 5.7 percent of original size [2021-03-11 15:35:08,326 INFO L147 QuantifierPusher]: treesize reduction 1339, result has 50.1 percent of original size 1344 [2021-03-11 15:35:08,833 WARN L205 SmtUtils]: Spent 498.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 64 [2021-03-11 15:35:08,841 INFO L142 QuantifierPusher]: treesize reduction 638, result has 7.4 percent of original size [2021-03-11 15:35:08,842 INFO L147 QuantifierPusher]: treesize reduction 10, result has 80.4 percent of original size 41 [2021-03-11 15:35:08,883 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 15:35:08,883 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [817482845] [2021-03-11 15:35:08,883 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 15:35:08,884 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-11 15:35:08,884 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1121434144] [2021-03-11 15:35:08,884 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-11 15:35:08,884 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 15:35:08,885 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-11 15:35:08,885 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-03-11 15:35:08,885 INFO L87 Difference]: Start difference. First operand 19 states and 26 transitions. Second operand has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 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) [2021-03-11 15:35:09,001 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-03-11 15:35:09,167 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2021-03-11 15:35:09,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 15:35:09,172 INFO L93 Difference]: Finished difference Result 28 states and 33 transitions. [2021-03-11 15:35:09,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-11 15:35:09,172 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 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 10 [2021-03-11 15:35:09,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 15:35:09,173 INFO L225 Difference]: With dead ends: 28 [2021-03-11 15:35:09,173 INFO L226 Difference]: Without dead ends: 20 [2021-03-11 15:35:09,173 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1303.3ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-03-11 15:35:09,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2021-03-11 15:35:09,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 15. [2021-03-11 15:35:09,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 14 states have (on average 1.2857142857142858) internal successors, (18), 14 states have internal predecessors, (18), 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) [2021-03-11 15:35:09,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 18 transitions. [2021-03-11 15:35:09,175 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 18 transitions. Word has length 10 [2021-03-11 15:35:09,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 15:35:09,175 INFO L480 AbstractCegarLoop]: Abstraction has 15 states and 18 transitions. [2021-03-11 15:35:09,175 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 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) [2021-03-11 15:35:09,175 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 18 transitions. [2021-03-11 15:35:09,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-03-11 15:35:09,175 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 15:35:09,175 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 15:35:09,175 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-11 15:35:09,176 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-11 15:35:09,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 15:35:09,176 INFO L82 PathProgramCache]: Analyzing trace with hash -1774383514, now seen corresponding path program 4 times [2021-03-11 15:35:09,176 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 15:35:09,176 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1731049919] [2021-03-11 15:35:09,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 15:35:09,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 15:35:09,257 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 15:35:09,257 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 15:35:09,382 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 383 DAG size of output: 294 [2021-03-11 15:35:09,384 INFO L142 QuantifierPusher]: treesize reduction 102903, result has 6.0 percent of original size [2021-03-11 15:35:09,405 INFO L147 QuantifierPusher]: treesize reduction 1917, result has 70.6 percent of original size 4595 [2021-03-11 15:35:10,251 WARN L205 SmtUtils]: Spent 835.00 ms on a formula simplification. DAG size of input: 264 DAG size of output: 61 [2021-03-11 15:35:10,269 INFO L142 QuantifierPusher]: treesize reduction 3131, result has 25.1 percent of original size [2021-03-11 15:35:10,274 INFO L147 QuantifierPusher]: treesize reduction 363, result has 65.3 percent of original size 684 [2021-03-11 15:35:10,633 WARN L205 SmtUtils]: Spent 351.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 65 [2021-03-11 15:35:10,647 INFO L142 QuantifierPusher]: treesize reduction 1147, result has 13.2 percent of original size [2021-03-11 15:35:10,648 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 174 [2021-03-11 15:35:10,730 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 15:35:10,730 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1731049919] [2021-03-11 15:35:10,730 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 15:35:10,730 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-11 15:35:10,730 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [792412970] [2021-03-11 15:35:10,730 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-11 15:35:10,731 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 15:35:10,731 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-11 15:35:10,731 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-03-11 15:35:10,731 INFO L87 Difference]: Start difference. First operand 15 states and 18 transitions. Second operand has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 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) [2021-03-11 15:35:11,003 WARN L205 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 116 [2021-03-11 15:35:11,314 WARN L205 SmtUtils]: Spent 299.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 127 [2021-03-11 15:35:11,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 15:35:11,323 INFO L93 Difference]: Finished difference Result 20 states and 22 transitions. [2021-03-11 15:35:11,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-11 15:35:11,324 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 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 10 [2021-03-11 15:35:11,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 15:35:11,324 INFO L225 Difference]: With dead ends: 20 [2021-03-11 15:35:11,324 INFO L226 Difference]: Without dead ends: 13 [2021-03-11 15:35:11,324 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1852.7ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-03-11 15:35:11,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2021-03-11 15:35:11,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2021-03-11 15:35:11,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 12 states have (on average 1.1666666666666667) internal successors, (14), 12 states have internal predecessors, (14), 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) [2021-03-11 15:35:11,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 14 transitions. [2021-03-11 15:35:11,326 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 14 transitions. Word has length 10 [2021-03-11 15:35:11,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 15:35:11,326 INFO L480 AbstractCegarLoop]: Abstraction has 13 states and 14 transitions. [2021-03-11 15:35:11,326 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 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) [2021-03-11 15:35:11,326 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 14 transitions. [2021-03-11 15:35:11,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-03-11 15:35:11,327 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 15:35:11,327 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 15:35:11,327 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-11 15:35:11,327 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-11 15:35:11,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 15:35:11,327 INFO L82 PathProgramCache]: Analyzing trace with hash 817106226, now seen corresponding path program 5 times [2021-03-11 15:35:11,328 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 15:35:11,328 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1910889832] [2021-03-11 15:35:11,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 15:35:11,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 15:35:11,449 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 15:35:11,449 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 15:35:11,493 INFO L142 QuantifierPusher]: treesize reduction 19423, result has 17.1 percent of original size [2021-03-11 15:35:11,507 INFO L147 QuantifierPusher]: treesize reduction 828, result has 79.3 percent of original size 3166 [2021-03-11 15:35:11,926 WARN L205 SmtUtils]: Spent 410.00 ms on a formula simplification. DAG size of input: 227 DAG size of output: 64 [2021-03-11 15:35:11,941 INFO L142 QuantifierPusher]: treesize reduction 1106, result has 42.2 percent of original size [2021-03-11 15:35:11,944 INFO L147 QuantifierPusher]: treesize reduction 193, result has 76.1 percent of original size 616 [2021-03-11 15:35:12,219 WARN L205 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 75 [2021-03-11 15:35:12,221 INFO L142 QuantifierPusher]: treesize reduction 230, result has 36.3 percent of original size [2021-03-11 15:35:12,222 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 131 [2021-03-11 15:35:12,284 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 15:35:12,284 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1910889832] [2021-03-11 15:35:12,284 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 15:35:12,284 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-11 15:35:12,284 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1821713917] [2021-03-11 15:35:12,285 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-11 15:35:12,285 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 15:35:12,285 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-11 15:35:12,285 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-03-11 15:35:12,285 INFO L87 Difference]: Start difference. First operand 13 states and 14 transitions. Second operand has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 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) [2021-03-11 15:35:12,605 WARN L205 SmtUtils]: Spent 303.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 118 [2021-03-11 15:35:12,977 WARN L205 SmtUtils]: Spent 343.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 135 [2021-03-11 15:35:12,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 15:35:12,982 INFO L93 Difference]: Finished difference Result 17 states and 17 transitions. [2021-03-11 15:35:12,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-11 15:35:12,982 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 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 10 [2021-03-11 15:35:12,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 15:35:12,983 INFO L225 Difference]: With dead ends: 17 [2021-03-11 15:35:12,983 INFO L226 Difference]: Without dead ends: 12 [2021-03-11 15:35:12,983 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1418.7ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-03-11 15:35:12,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2021-03-11 15:35:12,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2021-03-11 15:35:12,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 11 states have (on average 1.0909090909090908) internal successors, (12), 11 states have internal predecessors, (12), 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) [2021-03-11 15:35:12,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2021-03-11 15:35:12,984 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 10 [2021-03-11 15:35:12,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 15:35:12,984 INFO L480 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2021-03-11 15:35:12,985 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 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) [2021-03-11 15:35:12,985 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2021-03-11 15:35:12,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-03-11 15:35:12,985 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 15:35:12,985 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 15:35:12,985 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-03-11 15:35:12,985 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-11 15:35:12,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 15:35:12,986 INFO L82 PathProgramCache]: Analyzing trace with hash 900223116, now seen corresponding path program 6 times [2021-03-11 15:35:12,986 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 15:35:12,986 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1490162602] [2021-03-11 15:35:12,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 15:35:12,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 15:35:13,031 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 15:35:13,032 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 15:35:13,055 INFO L142 QuantifierPusher]: treesize reduction 7019, result has 21.4 percent of original size [2021-03-11 15:35:13,061 INFO L147 QuantifierPusher]: treesize reduction 864, result has 54.7 percent of original size 1045 [2021-03-11 15:35:13,406 WARN L205 SmtUtils]: Spent 339.00 ms on a formula simplification. DAG size of input: 179 DAG size of output: 51 [2021-03-11 15:35:13,412 INFO L142 QuantifierPusher]: treesize reduction 522, result has 47.3 percent of original size [2021-03-11 15:35:13,414 INFO L147 QuantifierPusher]: treesize reduction 125, result has 73.3 percent of original size 344 [2021-03-11 15:35:13,663 WARN L205 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 67 [2021-03-11 15:35:13,665 INFO L142 QuantifierPusher]: treesize reduction 78, result has 63.0 percent of original size [2021-03-11 15:35:13,666 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 133 [2021-03-11 15:35:13,728 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 15:35:13,728 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1490162602] [2021-03-11 15:35:13,728 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 15:35:13,728 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-11 15:35:13,728 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1461377779] [2021-03-11 15:35:13,729 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-11 15:35:13,729 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 15:35:13,729 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-11 15:35:13,729 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-03-11 15:35:13,729 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 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) [2021-03-11 15:35:13,858 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2021-03-11 15:35:13,994 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2021-03-11 15:35:13,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 15:35:13,995 INFO L93 Difference]: Finished difference Result 11 states and 11 transitions. [2021-03-11 15:35:13,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-11 15:35:13,996 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 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 10 [2021-03-11 15:35:13,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 15:35:13,996 INFO L225 Difference]: With dead ends: 11 [2021-03-11 15:35:13,996 INFO L226 Difference]: Without dead ends: 0 [2021-03-11 15:35:13,996 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 913.0ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-03-11 15:35:13,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-03-11 15:35:13,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-03-11 15:35:13,996 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) [2021-03-11 15:35:13,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-03-11 15:35:13,996 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2021-03-11 15:35:13,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 15:35:13,997 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-03-11 15:35:13,997 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 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) [2021-03-11 15:35:13,997 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-03-11 15:35:13,997 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-03-11 15:35:13,997 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-03-11 15:35:14,000 INFO L202 PluginConnector]: Adding new model collitem-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.03 03:35:13 BasicIcfg [2021-03-11 15:35:14,000 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-11 15:35:14,000 INFO L168 Benchmark]: Toolchain (without parser) took 10783.87 ms. Allocated memory was 255.9 MB in the beginning and 702.5 MB in the end (delta: 446.7 MB). Free memory was 236.7 MB in the beginning and 309.4 MB in the end (delta: -72.7 MB). Peak memory consumption was 374.3 MB. Max. memory is 16.0 GB. [2021-03-11 15:35:14,001 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.09 ms. Allocated memory is still 255.9 MB. Free memory was 237.8 MB in the beginning and 237.6 MB in the end (delta: 178.2 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-11 15:35:14,001 INFO L168 Benchmark]: Boogie Procedure Inliner took 19.58 ms. Allocated memory is still 255.9 MB. Free memory was 236.1 MB in the beginning and 234.5 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-11 15:35:14,001 INFO L168 Benchmark]: Boogie Preprocessor took 16.04 ms. Allocated memory is still 255.9 MB. Free memory was 234.5 MB in the beginning and 233.5 MB in the end (delta: 1.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-11 15:35:14,002 INFO L168 Benchmark]: RCFGBuilder took 341.37 ms. Allocated memory is still 255.9 MB. Free memory was 233.5 MB in the beginning and 232.5 MB in the end (delta: 1.0 MB). Peak memory consumption was 19.9 MB. Max. memory is 16.0 GB. [2021-03-11 15:35:14,002 INFO L168 Benchmark]: TraceAbstraction took 10399.94 ms. Allocated memory was 255.9 MB in the beginning and 702.5 MB in the end (delta: 446.7 MB). Free memory was 232.5 MB in the beginning and 309.4 MB in the end (delta: -76.9 MB). Peak memory consumption was 369.1 MB. Max. memory is 16.0 GB. [2021-03-11 15:35:14,006 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 0.09 ms. Allocated memory is still 255.9 MB. Free memory was 237.8 MB in the beginning and 237.6 MB in the end (delta: 178.2 kB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 19.58 ms. Allocated memory is still 255.9 MB. Free memory was 236.1 MB in the beginning and 234.5 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 16.04 ms. Allocated memory is still 255.9 MB. Free memory was 234.5 MB in the beginning and 233.5 MB in the end (delta: 1.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 341.37 ms. Allocated memory is still 255.9 MB. Free memory was 233.5 MB in the beginning and 232.5 MB in the end (delta: 1.0 MB). Peak memory consumption was 19.9 MB. Max. memory is 16.0 GB. * TraceAbstraction took 10399.94 ms. Allocated memory was 255.9 MB in the beginning and 702.5 MB in the end (delta: 446.7 MB). Free memory was 232.5 MB in the beginning and 309.4 MB in the end (delta: -76.9 MB). Peak memory consumption was 369.1 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 237.6ms, 29 PlacesBefore, 24 PlacesAfterwards, 19 TransitionsBefore, 14 TransitionsAfterwards, 48 CoEnabledTransitionPairs, 2 FixpointIterations, 3 TrivialSequentialCompositions, 3 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 6 TotalNumberOfCompositions, 54 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 54, positive: 54, positive conditional: 0, positive unconditional: 54, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 34, positive: 34, positive conditional: 0, positive unconditional: 34, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 34, positive: 34, positive conditional: 0, positive unconditional: 34, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 54, positive: 20, positive conditional: 0, positive unconditional: 20, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 34, unknown conditional: 0, unknown unconditional: 34] , Statistics on independence cache: Total cache size (in pairs): 12, Positive cache size: 12, Positive conditional cache size: 0, Positive unconditional cache size: 12, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - PositiveResult [Line: 68]: assertion always holds For all program executions holds that assertion always holds at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 20 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 10284.2ms, OverallIterations: 6, TraceHistogramMax: 1, EmptinessCheckTime: 12.3ms, AutomataDifference: 2598.7ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 281.8ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 68 SDtfs, 91 SDslu, 106 SDs, 0 SdLazy, 80 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 137.3ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 36 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7491.4ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=24occurred in iteration=0, InterpolantAutomatonStates: 30, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 16.9ms AutomataMinimizationTime, 6 MinimizatonAttempts, 15 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 11.3ms SsaConstructionTime, 188.9ms SatisfiabilityAnalysisTime, 7075.6ms InterpolantComputationTime, 60 NumberOfCodeBlocks, 60 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 54 ConstructedInterpolants, 0 QuantifiedInterpolants, 4037 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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 RESULT: Ultimate proved your program to be correct! Received shutdown request...