/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg true -i ../../../trunk/examples/svcomp/weaver/popl20-threaded-sum-3.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-wip.dk.empire-owicki-a20a710-m [2023-12-09 15:34:09,716 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-09 15:34:09,794 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf [2023-12-09 15:34:09,825 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-09 15:34:09,826 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-09 15:34:09,827 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-09 15:34:09,827 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-09 15:34:09,827 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-09 15:34:09,828 INFO L153 SettingsManager]: * Use SBE=true [2023-12-09 15:34:09,831 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-09 15:34:09,832 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-09 15:34:09,832 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-09 15:34:09,833 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-09 15:34:09,834 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-09 15:34:09,834 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-09 15:34:09,834 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-09 15:34:09,834 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-09 15:34:09,834 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-09 15:34:09,835 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-09 15:34:09,835 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-09 15:34:09,835 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-09 15:34:09,836 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-09 15:34:09,836 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-09 15:34:09,836 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-12-09 15:34:09,836 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-09 15:34:09,837 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-09 15:34:09,837 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-09 15:34:09,837 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-09 15:34:09,837 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-09 15:34:09,837 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-09 15:34:09,838 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-09 15:34:09,838 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-09 15:34:09,839 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-09 15:34:09,839 INFO L153 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> true [2023-12-09 15:34:10,058 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-09 15:34:10,079 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-09 15:34:10,082 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-09 15:34:10,083 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-09 15:34:10,083 INFO L274 PluginConnector]: CDTParser initialized [2023-12-09 15:34:10,084 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-threaded-sum-3.wvr.c [2023-12-09 15:34:11,299 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-09 15:34:11,496 INFO L384 CDTParser]: Found 1 translation units. [2023-12-09 15:34:11,497 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-threaded-sum-3.wvr.c [2023-12-09 15:34:11,504 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/affc42f05/40d00c69451b43158402a214bf2ccd74/FLAG0c0f2ccf6 [2023-12-09 15:34:11,519 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/affc42f05/40d00c69451b43158402a214bf2ccd74 [2023-12-09 15:34:11,521 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-09 15:34:11,523 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-09 15:34:11,525 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-09 15:34:11,525 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-09 15:34:11,529 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-09 15:34:11,530 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 03:34:11" (1/1) ... [2023-12-09 15:34:11,531 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36c76c20 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:34:11, skipping insertion in model container [2023-12-09 15:34:11,532 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 03:34:11" (1/1) ... [2023-12-09 15:34:11,554 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-09 15:34:11,735 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-threaded-sum-3.wvr.c[2996,3009] [2023-12-09 15:34:11,744 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-09 15:34:11,756 INFO L202 MainTranslator]: Completed pre-run [2023-12-09 15:34:11,795 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-threaded-sum-3.wvr.c[2996,3009] [2023-12-09 15:34:11,799 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-09 15:34:11,807 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-12-09 15:34:11,807 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-12-09 15:34:11,813 INFO L206 MainTranslator]: Completed translation [2023-12-09 15:34:11,814 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:34:11 WrapperNode [2023-12-09 15:34:11,814 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-09 15:34:11,815 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-09 15:34:11,815 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-09 15:34:11,815 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-09 15:34:11,821 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:34:11" (1/1) ... [2023-12-09 15:34:11,830 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:34:11" (1/1) ... [2023-12-09 15:34:11,858 INFO L138 Inliner]: procedures = 22, calls = 46, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 81 [2023-12-09 15:34:11,858 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-09 15:34:11,859 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-09 15:34:11,859 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-09 15:34:11,859 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-09 15:34:11,869 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:34:11" (1/1) ... [2023-12-09 15:34:11,869 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:34:11" (1/1) ... [2023-12-09 15:34:11,873 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:34:11" (1/1) ... [2023-12-09 15:34:11,873 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:34:11" (1/1) ... [2023-12-09 15:34:11,878 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:34:11" (1/1) ... [2023-12-09 15:34:11,881 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:34:11" (1/1) ... [2023-12-09 15:34:11,885 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:34:11" (1/1) ... [2023-12-09 15:34:11,887 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:34:11" (1/1) ... [2023-12-09 15:34:11,889 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-09 15:34:11,890 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-09 15:34:11,890 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-09 15:34:11,890 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-09 15:34:11,891 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:34:11" (1/1) ... [2023-12-09 15:34:11,895 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-09 15:34:11,919 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-09 15:34:11,935 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-09 15:34:11,956 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-09 15:34:11,966 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-09 15:34:11,966 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-12-09 15:34:11,966 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-12-09 15:34:11,967 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-12-09 15:34:11,968 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-12-09 15:34:11,968 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-12-09 15:34:11,968 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-12-09 15:34:11,968 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-09 15:34:11,968 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-09 15:34:11,968 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-12-09 15:34:11,968 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-12-09 15:34:11,968 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-12-09 15:34:11,969 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-09 15:34:11,969 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-09 15:34:11,969 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-12-09 15:34:11,969 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-09 15:34:11,970 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-12-09 15:34:12,093 INFO L241 CfgBuilder]: Building ICFG [2023-12-09 15:34:12,095 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-09 15:34:12,365 INFO L282 CfgBuilder]: Performing block encoding [2023-12-09 15:34:12,473 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-09 15:34:12,474 INFO L309 CfgBuilder]: Removed 3 assume(true) statements. [2023-12-09 15:34:12,475 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 03:34:12 BoogieIcfgContainer [2023-12-09 15:34:12,475 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-09 15:34:12,478 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-09 15:34:12,478 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-09 15:34:12,481 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-09 15:34:12,481 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 03:34:11" (1/3) ... [2023-12-09 15:34:12,482 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cec7228 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 03:34:12, skipping insertion in model container [2023-12-09 15:34:12,482 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:34:11" (2/3) ... [2023-12-09 15:34:12,483 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cec7228 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 03:34:12, skipping insertion in model container [2023-12-09 15:34:12,483 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 03:34:12" (3/3) ... [2023-12-09 15:34:12,484 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-threaded-sum-3.wvr.c [2023-12-09 15:34:12,500 INFO L197 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-09 15:34:12,500 INFO L156 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-09 15:34:12,501 INFO L508 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-12-09 15:34:12,579 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-12-09 15:34:12,620 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 119 places, 117 transitions, 255 flow [2023-12-09 15:34:12,664 INFO L124 PetriNetUnfolderBase]: 8/114 cut-off events. [2023-12-09 15:34:12,664 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-12-09 15:34:12,669 INFO L83 FinitePrefix]: Finished finitePrefix Result has 127 conditions, 114 events. 8/114 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 62 event pairs, 0 based on Foata normal form. 0/105 useless extension candidates. Maximal degree in co-relation 76. Up to 2 conditions per place. [2023-12-09 15:34:12,669 INFO L82 GeneralOperation]: Start removeDead. Operand has 119 places, 117 transitions, 255 flow [2023-12-09 15:34:12,673 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 105 places, 103 transitions, 224 flow [2023-12-09 15:34:12,682 INFO L361 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-09 15:34:12,688 INFO L362 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@1aefd88e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-09 15:34:12,688 INFO L363 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-12-09 15:34:12,732 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-12-09 15:34:12,732 INFO L124 PetriNetUnfolderBase]: 8/102 cut-off events. [2023-12-09 15:34:12,732 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-12-09 15:34:12,732 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:34:12,733 INFO L233 CegarLoopForPetriNet]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:34:12,733 INFO L425 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-12-09 15:34:12,738 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:34:12,738 INFO L85 PathProgramCache]: Analyzing trace with hash -81987652, now seen corresponding path program 1 times [2023-12-09 15:34:12,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:34:12,747 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [848093622] [2023-12-09 15:34:12,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:34:12,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:34:12,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:34:14,087 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:34:14,087 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:34:14,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [848093622] [2023-12-09 15:34:14,088 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [848093622] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:34:14,088 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:34:14,089 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-09 15:34:14,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563223417] [2023-12-09 15:34:14,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:34:14,098 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-09 15:34:14,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:34:14,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-09 15:34:14,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2023-12-09 15:34:14,134 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 117 [2023-12-09 15:34:14,137 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 103 transitions, 224 flow. Second operand has 7 states, 7 states have (on average 73.57142857142857) internal successors, (515), 7 states have internal predecessors, (515), 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) [2023-12-09 15:34:14,137 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:34:14,137 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 117 [2023-12-09 15:34:14,138 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:34:14,537 INFO L124 PetriNetUnfolderBase]: 266/645 cut-off events. [2023-12-09 15:34:14,537 INFO L125 PetriNetUnfolderBase]: For 56/56 co-relation queries the response was YES. [2023-12-09 15:34:14,542 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1124 conditions, 645 events. 266/645 cut-off events. For 56/56 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 3004 event pairs, 80 based on Foata normal form. 85/673 useless extension candidates. Maximal degree in co-relation 936. Up to 195 conditions per place. [2023-12-09 15:34:14,547 INFO L140 encePairwiseOnDemand]: 100/117 looper letters, 54 selfloop transitions, 12 changer transitions 2/124 dead transitions. [2023-12-09 15:34:14,548 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 112 places, 124 transitions, 408 flow [2023-12-09 15:34:14,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-09 15:34:14,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-12-09 15:34:14,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 635 transitions. [2023-12-09 15:34:14,567 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.6784188034188035 [2023-12-09 15:34:14,567 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 635 transitions. [2023-12-09 15:34:14,568 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 635 transitions. [2023-12-09 15:34:14,571 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:34:14,573 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 635 transitions. [2023-12-09 15:34:14,579 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 79.375) internal successors, (635), 8 states have internal predecessors, (635), 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) [2023-12-09 15:34:14,585 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 117.0) internal successors, (1053), 9 states have internal predecessors, (1053), 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) [2023-12-09 15:34:14,586 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 117.0) internal successors, (1053), 9 states have internal predecessors, (1053), 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) [2023-12-09 15:34:14,590 INFO L308 CegarLoopForPetriNet]: 105 programPoint places, 7 predicate places. [2023-12-09 15:34:14,590 INFO L500 AbstractCegarLoop]: Abstraction has has 112 places, 124 transitions, 408 flow [2023-12-09 15:34:14,591 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 73.57142857142857) internal successors, (515), 7 states have internal predecessors, (515), 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) [2023-12-09 15:34:14,591 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:34:14,592 INFO L233 CegarLoopForPetriNet]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:34:14,592 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-09 15:34:14,593 INFO L425 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-12-09 15:34:14,594 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:34:14,594 INFO L85 PathProgramCache]: Analyzing trace with hash 422968823, now seen corresponding path program 1 times [2023-12-09 15:34:14,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:34:14,595 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1280726485] [2023-12-09 15:34:14,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:34:14,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:34:14,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:34:15,026 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:34:15,027 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:34:15,027 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1280726485] [2023-12-09 15:34:15,028 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1280726485] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:34:15,028 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:34:15,028 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-09 15:34:15,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1617959513] [2023-12-09 15:34:15,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:34:15,030 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-09 15:34:15,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:34:15,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-09 15:34:15,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-09 15:34:15,033 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 117 [2023-12-09 15:34:15,033 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 112 places, 124 transitions, 408 flow. Second operand has 6 states, 6 states have (on average 90.0) internal successors, (540), 6 states have internal predecessors, (540), 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) [2023-12-09 15:34:15,034 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:34:15,034 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 117 [2023-12-09 15:34:15,034 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:34:15,425 INFO L124 PetriNetUnfolderBase]: 675/1490 cut-off events. [2023-12-09 15:34:15,426 INFO L125 PetriNetUnfolderBase]: For 499/633 co-relation queries the response was YES. [2023-12-09 15:34:15,431 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3567 conditions, 1490 events. 675/1490 cut-off events. For 499/633 co-relation queries the response was YES. Maximal size of possible extension queue 97. Compared 8520 event pairs, 85 based on Foata normal form. 0/1316 useless extension candidates. Maximal degree in co-relation 3060. Up to 594 conditions per place. [2023-12-09 15:34:15,439 INFO L140 encePairwiseOnDemand]: 108/117 looper letters, 105 selfloop transitions, 36 changer transitions 2/215 dead transitions. [2023-12-09 15:34:15,439 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 118 places, 215 transitions, 1083 flow [2023-12-09 15:34:15,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-09 15:34:15,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-12-09 15:34:15,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 685 transitions. [2023-12-09 15:34:15,442 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.8363858363858364 [2023-12-09 15:34:15,442 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 685 transitions. [2023-12-09 15:34:15,442 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 685 transitions. [2023-12-09 15:34:15,443 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:34:15,443 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 685 transitions. [2023-12-09 15:34:15,445 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 97.85714285714286) internal successors, (685), 7 states have internal predecessors, (685), 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) [2023-12-09 15:34:15,447 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 117.0) internal successors, (936), 8 states have internal predecessors, (936), 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) [2023-12-09 15:34:15,448 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 117.0) internal successors, (936), 8 states have internal predecessors, (936), 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) [2023-12-09 15:34:15,448 INFO L308 CegarLoopForPetriNet]: 105 programPoint places, 13 predicate places. [2023-12-09 15:34:15,449 INFO L500 AbstractCegarLoop]: Abstraction has has 118 places, 215 transitions, 1083 flow [2023-12-09 15:34:15,449 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 90.0) internal successors, (540), 6 states have internal predecessors, (540), 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) [2023-12-09 15:34:15,450 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:34:15,450 INFO L233 CegarLoopForPetriNet]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:34:15,450 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-09 15:34:15,451 INFO L425 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-12-09 15:34:15,452 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:34:15,452 INFO L85 PathProgramCache]: Analyzing trace with hash 1899291033, now seen corresponding path program 2 times [2023-12-09 15:34:15,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:34:15,453 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [238251630] [2023-12-09 15:34:15,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:34:15,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:34:15,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:34:15,811 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:34:15,811 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:34:15,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [238251630] [2023-12-09 15:34:15,811 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [238251630] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:34:15,811 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:34:15,812 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-09 15:34:15,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1389949629] [2023-12-09 15:34:15,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:34:15,812 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-09 15:34:15,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:34:15,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-09 15:34:15,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-09 15:34:15,814 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 117 [2023-12-09 15:34:15,815 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 215 transitions, 1083 flow. Second operand has 5 states, 5 states have (on average 90.8) internal successors, (454), 5 states have internal predecessors, (454), 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) [2023-12-09 15:34:15,815 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:34:15,815 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 117 [2023-12-09 15:34:15,815 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:34:16,249 INFO L124 PetriNetUnfolderBase]: 1235/2454 cut-off events. [2023-12-09 15:34:16,249 INFO L125 PetriNetUnfolderBase]: For 1729/2107 co-relation queries the response was YES. [2023-12-09 15:34:16,256 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7447 conditions, 2454 events. 1235/2454 cut-off events. For 1729/2107 co-relation queries the response was YES. Maximal size of possible extension queue 163. Compared 15087 event pairs, 134 based on Foata normal form. 20/2117 useless extension candidates. Maximal degree in co-relation 6443. Up to 991 conditions per place. [2023-12-09 15:34:16,274 INFO L140 encePairwiseOnDemand]: 107/117 looper letters, 148 selfloop transitions, 63 changer transitions 2/300 dead transitions. [2023-12-09 15:34:16,274 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 123 places, 300 transitions, 2007 flow [2023-12-09 15:34:16,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-09 15:34:16,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-12-09 15:34:16,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 594 transitions. [2023-12-09 15:34:16,276 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.8461538461538461 [2023-12-09 15:34:16,276 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 594 transitions. [2023-12-09 15:34:16,276 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 594 transitions. [2023-12-09 15:34:16,277 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:34:16,277 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 594 transitions. [2023-12-09 15:34:16,278 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 99.0) internal successors, (594), 6 states have internal predecessors, (594), 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) [2023-12-09 15:34:16,280 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 117.0) internal successors, (819), 7 states have internal predecessors, (819), 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) [2023-12-09 15:34:16,280 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 117.0) internal successors, (819), 7 states have internal predecessors, (819), 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) [2023-12-09 15:34:16,281 INFO L308 CegarLoopForPetriNet]: 105 programPoint places, 18 predicate places. [2023-12-09 15:34:16,281 INFO L500 AbstractCegarLoop]: Abstraction has has 123 places, 300 transitions, 2007 flow [2023-12-09 15:34:16,282 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 90.8) internal successors, (454), 5 states have internal predecessors, (454), 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) [2023-12-09 15:34:16,282 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:34:16,282 INFO L233 CegarLoopForPetriNet]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:34:16,282 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-09 15:34:16,282 INFO L425 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-12-09 15:34:16,283 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:34:16,283 INFO L85 PathProgramCache]: Analyzing trace with hash 926032885, now seen corresponding path program 3 times [2023-12-09 15:34:16,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:34:16,284 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [516612789] [2023-12-09 15:34:16,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:34:16,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:34:16,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:34:16,674 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:34:16,674 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:34:16,675 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [516612789] [2023-12-09 15:34:16,675 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [516612789] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-09 15:34:16,675 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [970764232] [2023-12-09 15:34:16,675 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-12-09 15:34:16,676 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-09 15:34:16,676 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-09 15:34:16,684 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-09 15:34:16,701 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-09 15:34:16,797 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2023-12-09 15:34:16,797 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-09 15:34:16,800 INFO L262 TraceCheckSpWp]: Trace formula consists of 232 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-09 15:34:16,805 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-09 15:34:16,975 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-09 15:34:16,975 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-09 15:34:16,976 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [970764232] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:34:16,976 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-09 15:34:16,976 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 12 [2023-12-09 15:34:16,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1740432778] [2023-12-09 15:34:16,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:34:16,977 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-09 15:34:16,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:34:16,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-09 15:34:16,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2023-12-09 15:34:16,980 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 117 [2023-12-09 15:34:16,981 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 300 transitions, 2007 flow. Second operand has 7 states, 7 states have (on average 79.14285714285714) internal successors, (554), 7 states have internal predecessors, (554), 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) [2023-12-09 15:34:16,981 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:34:16,981 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 117 [2023-12-09 15:34:16,981 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:34:17,484 INFO L124 PetriNetUnfolderBase]: 1427/2723 cut-off events. [2023-12-09 15:34:17,484 INFO L125 PetriNetUnfolderBase]: For 3703/4100 co-relation queries the response was YES. [2023-12-09 15:34:17,490 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10222 conditions, 2723 events. 1427/2723 cut-off events. For 3703/4100 co-relation queries the response was YES. Maximal size of possible extension queue 176. Compared 16727 event pairs, 191 based on Foata normal form. 4/2353 useless extension candidates. Maximal degree in co-relation 8800. Up to 1297 conditions per place. [2023-12-09 15:34:17,513 INFO L140 encePairwiseOnDemand]: 106/117 looper letters, 208 selfloop transitions, 18 changer transitions 2/312 dead transitions. [2023-12-09 15:34:17,514 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 133 places, 312 transitions, 2554 flow [2023-12-09 15:34:17,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-09 15:34:17,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-12-09 15:34:17,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 889 transitions. [2023-12-09 15:34:17,517 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.6907536907536908 [2023-12-09 15:34:17,517 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 889 transitions. [2023-12-09 15:34:17,517 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 889 transitions. [2023-12-09 15:34:17,517 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:34:17,518 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 889 transitions. [2023-12-09 15:34:17,520 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 80.81818181818181) internal successors, (889), 11 states have internal predecessors, (889), 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) [2023-12-09 15:34:17,522 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 117.0) internal successors, (1404), 12 states have internal predecessors, (1404), 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) [2023-12-09 15:34:17,523 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 117.0) internal successors, (1404), 12 states have internal predecessors, (1404), 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) [2023-12-09 15:34:17,525 INFO L308 CegarLoopForPetriNet]: 105 programPoint places, 28 predicate places. [2023-12-09 15:34:17,525 INFO L500 AbstractCegarLoop]: Abstraction has has 133 places, 312 transitions, 2554 flow [2023-12-09 15:34:17,525 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 79.14285714285714) internal successors, (554), 7 states have internal predecessors, (554), 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) [2023-12-09 15:34:17,525 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:34:17,526 INFO L233 CegarLoopForPetriNet]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:34:17,538 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-09 15:34:17,732 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-09 15:34:17,733 INFO L425 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-12-09 15:34:17,733 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:34:17,734 INFO L85 PathProgramCache]: Analyzing trace with hash 435915461, now seen corresponding path program 4 times [2023-12-09 15:34:17,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:34:17,734 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1008577012] [2023-12-09 15:34:17,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:34:17,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:34:17,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:34:18,242 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:34:18,243 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:34:18,243 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1008577012] [2023-12-09 15:34:18,243 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1008577012] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:34:18,243 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:34:18,244 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-09 15:34:18,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1290421635] [2023-12-09 15:34:18,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:34:18,244 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-09 15:34:18,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:34:18,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-09 15:34:18,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-12-09 15:34:18,247 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 117 [2023-12-09 15:34:18,248 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 133 places, 312 transitions, 2554 flow. Second operand has 8 states, 8 states have (on average 71.625) internal successors, (573), 8 states have internal predecessors, (573), 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) [2023-12-09 15:34:18,248 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:34:18,248 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 117 [2023-12-09 15:34:18,248 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:34:19,079 INFO L124 PetriNetUnfolderBase]: 2947/5442 cut-off events. [2023-12-09 15:34:19,079 INFO L125 PetriNetUnfolderBase]: For 10077/11236 co-relation queries the response was YES. [2023-12-09 15:34:19,092 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23976 conditions, 5442 events. 2947/5442 cut-off events. For 10077/11236 co-relation queries the response was YES. Maximal size of possible extension queue 294. Compared 36896 event pairs, 183 based on Foata normal form. 26/4805 useless extension candidates. Maximal degree in co-relation 23388. Up to 2611 conditions per place. [2023-12-09 15:34:19,146 INFO L140 encePairwiseOnDemand]: 108/117 looper letters, 458 selfloop transitions, 94 changer transitions 2/626 dead transitions. [2023-12-09 15:34:19,147 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 140 places, 626 transitions, 6747 flow [2023-12-09 15:34:19,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-09 15:34:19,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-12-09 15:34:19,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 613 transitions. [2023-12-09 15:34:19,149 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.6549145299145299 [2023-12-09 15:34:19,149 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 613 transitions. [2023-12-09 15:34:19,149 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 613 transitions. [2023-12-09 15:34:19,149 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:34:19,150 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 613 transitions. [2023-12-09 15:34:19,153 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 76.625) internal successors, (613), 8 states have internal predecessors, (613), 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) [2023-12-09 15:34:19,157 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 117.0) internal successors, (1053), 9 states have internal predecessors, (1053), 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) [2023-12-09 15:34:19,158 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 117.0) internal successors, (1053), 9 states have internal predecessors, (1053), 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) [2023-12-09 15:34:19,164 INFO L308 CegarLoopForPetriNet]: 105 programPoint places, 35 predicate places. [2023-12-09 15:34:19,164 INFO L500 AbstractCegarLoop]: Abstraction has has 140 places, 626 transitions, 6747 flow [2023-12-09 15:34:19,165 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 71.625) internal successors, (573), 8 states have internal predecessors, (573), 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) [2023-12-09 15:34:19,165 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:34:19,165 INFO L233 CegarLoopForPetriNet]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:34:19,165 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-09 15:34:19,165 INFO L425 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-12-09 15:34:19,165 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:34:19,166 INFO L85 PathProgramCache]: Analyzing trace with hash -1131366762, now seen corresponding path program 1 times [2023-12-09 15:34:19,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:34:19,166 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2058848498] [2023-12-09 15:34:19,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:34:19,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:34:19,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:34:22,404 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:34:22,405 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:34:22,405 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2058848498] [2023-12-09 15:34:22,405 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2058848498] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-09 15:34:22,405 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1609737763] [2023-12-09 15:34:22,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:34:22,405 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-09 15:34:22,406 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-09 15:34:22,409 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-09 15:34:22,437 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-09 15:34:22,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:34:22,622 INFO L262 TraceCheckSpWp]: Trace formula consists of 243 conjuncts, 39 conjunts are in the unsatisfiable core [2023-12-09 15:34:22,627 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-09 15:34:24,353 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:34:24,353 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-09 15:34:27,233 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:34:27,233 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1609737763] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-09 15:34:27,234 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-09 15:34:27,234 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 20, 22] total 46 [2023-12-09 15:34:27,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [173880418] [2023-12-09 15:34:27,234 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-09 15:34:27,235 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2023-12-09 15:34:27,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:34:27,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2023-12-09 15:34:27,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=326, Invalid=1744, Unknown=0, NotChecked=0, Total=2070 [2023-12-09 15:34:27,239 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 117 [2023-12-09 15:34:27,242 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 626 transitions, 6747 flow. Second operand has 46 states, 46 states have (on average 64.32608695652173) internal successors, (2959), 46 states have internal predecessors, (2959), 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) [2023-12-09 15:34:27,242 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:34:27,242 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 117 [2023-12-09 15:34:27,242 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:34:43,174 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-09 15:35:32,575 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-09 15:35:59,957 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-09 15:36:48,435 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-09 15:37:02,584 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-09 15:38:01,533 INFO L124 PetriNetUnfolderBase]: 35253/71488 cut-off events. [2023-12-09 15:38:01,533 INFO L125 PetriNetUnfolderBase]: For 188762/196025 co-relation queries the response was YES. [2023-12-09 15:38:01,718 INFO L83 FinitePrefix]: Finished finitePrefix Result has 348688 conditions, 71488 events. 35253/71488 cut-off events. For 188762/196025 co-relation queries the response was YES. Maximal size of possible extension queue 3899. Compared 802334 event pairs, 457 based on Foata normal form. 513/62246 useless extension candidates. Maximal degree in co-relation 323431. Up to 32804 conditions per place. [2023-12-09 15:38:02,374 INFO L140 encePairwiseOnDemand]: 82/117 looper letters, 6333 selfloop transitions, 7455 changer transitions 1343/15180 dead transitions. [2023-12-09 15:38:02,374 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 807 places, 15180 transitions, 194840 flow [2023-12-09 15:38:02,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 668 states. [2023-12-09 15:38:02,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 668 states. [2023-12-09 15:38:02,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 668 states to 668 states and 46135 transitions. [2023-12-09 15:38:02,449 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.590293771431496 [2023-12-09 15:38:02,449 INFO L72 ComplementDD]: Start complementDD. Operand 668 states and 46135 transitions. [2023-12-09 15:38:02,449 INFO L73 IsDeterministic]: Start isDeterministic. Operand 668 states and 46135 transitions. [2023-12-09 15:38:02,470 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:38:02,470 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 668 states and 46135 transitions. [2023-12-09 15:38:02,574 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 669 states, 668 states have (on average 69.06437125748504) internal successors, (46135), 668 states have internal predecessors, (46135), 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) [2023-12-09 15:38:02,714 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 669 states, 669 states have (on average 117.0) internal successors, (78273), 669 states have internal predecessors, (78273), 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) [2023-12-09 15:38:02,748 INFO L81 ComplementDD]: Finished complementDD. Result has 669 states, 669 states have (on average 117.0) internal successors, (78273), 669 states have internal predecessors, (78273), 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) [2023-12-09 15:38:02,750 INFO L308 CegarLoopForPetriNet]: 105 programPoint places, 702 predicate places. [2023-12-09 15:38:02,750 INFO L500 AbstractCegarLoop]: Abstraction has has 807 places, 15180 transitions, 194840 flow [2023-12-09 15:38:02,751 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 46 states have (on average 64.32608695652173) internal successors, (2959), 46 states have internal predecessors, (2959), 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) [2023-12-09 15:38:02,751 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:38:02,751 INFO L233 CegarLoopForPetriNet]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:38:02,760 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-12-09 15:38:02,957 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-12-09 15:38:02,958 INFO L425 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-12-09 15:38:02,958 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:38:02,958 INFO L85 PathProgramCache]: Analyzing trace with hash 324153542, now seen corresponding path program 2 times [2023-12-09 15:38:02,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:38:02,958 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1795035800] [2023-12-09 15:38:02,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:38:02,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:38:03,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:38:05,801 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:38:05,801 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:38:05,801 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1795035800] [2023-12-09 15:38:05,802 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1795035800] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-09 15:38:05,802 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1837686033] [2023-12-09 15:38:05,802 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-09 15:38:05,802 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-09 15:38:05,802 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-09 15:38:05,804 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-09 15:38:05,805 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-09 15:38:06,009 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-09 15:38:06,009 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-09 15:38:06,015 INFO L262 TraceCheckSpWp]: Trace formula consists of 243 conjuncts, 29 conjunts are in the unsatisfiable core [2023-12-09 15:38:06,018 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-09 15:38:07,300 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:38:07,300 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-09 15:38:10,232 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:38:10,232 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1837686033] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-09 15:38:10,232 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-09 15:38:10,232 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 17, 17] total 40 [2023-12-09 15:38:10,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1781707531] [2023-12-09 15:38:10,232 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-09 15:38:10,233 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2023-12-09 15:38:10,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:38:10,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2023-12-09 15:38:10,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=246, Invalid=1314, Unknown=0, NotChecked=0, Total=1560 [2023-12-09 15:38:10,236 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 117 [2023-12-09 15:38:10,238 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 807 places, 15180 transitions, 194840 flow. Second operand has 40 states, 40 states have (on average 64.6) internal successors, (2584), 40 states have internal predecessors, (2584), 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) [2023-12-09 15:38:10,238 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:38:10,238 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 117 [2023-12-09 15:38:10,238 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:38:13,644 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] Received shutdown request... [2023-12-09 15:38:24,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2023-12-09 15:38:24,992 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2023-12-09 15:38:24,998 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-12-09 15:38:25,004 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-09 15:38:25,004 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-09 15:38:25,193 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-09 15:38:25,193 WARN L624 AbstractCegarLoop]: Verification canceled: while PredicateComparison was comparing new predicate (quantifier-free) to 107 known predicates. [2023-12-09 15:38:25,194 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2023-12-09 15:38:25,195 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2023-12-09 15:38:25,195 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2023-12-09 15:38:25,195 INFO L457 BasicCegarLoop]: Path program histogram: [4, 2, 1] [2023-12-09 15:38:25,198 INFO L222 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-12-09 15:38:25,198 INFO L172 ceAbstractionStarter]: Computing trace abstraction results [2023-12-09 15:38:25,201 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 03:38:25 BasicIcfg [2023-12-09 15:38:25,201 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-09 15:38:25,202 INFO L158 Benchmark]: Toolchain (without parser) took 253679.20ms. Allocated memory was 261.1MB in the beginning and 1.6GB in the end (delta: 1.4GB). Free memory was 210.2MB in the beginning and 360.9MB in the end (delta: -150.7MB). Peak memory consumption was 1.2GB. Max. memory is 8.0GB. [2023-12-09 15:38:25,202 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 200.3MB. Free memory is still 152.6MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-09 15:38:25,202 INFO L158 Benchmark]: CACSL2BoogieTranslator took 289.30ms. Allocated memory is still 261.1MB. Free memory was 210.0MB in the beginning and 198.4MB in the end (delta: 11.6MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2023-12-09 15:38:25,203 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.01ms. Allocated memory is still 261.1MB. Free memory was 198.1MB in the beginning and 196.6MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-12-09 15:38:25,203 INFO L158 Benchmark]: Boogie Preprocessor took 30.09ms. Allocated memory is still 261.1MB. Free memory was 196.6MB in the beginning and 195.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-09 15:38:25,203 INFO L158 Benchmark]: RCFGBuilder took 585.84ms. Allocated memory is still 261.1MB. Free memory was 195.0MB in the beginning and 226.6MB in the end (delta: -31.6MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. [2023-12-09 15:38:25,203 INFO L158 Benchmark]: TraceAbstraction took 252723.14ms. Allocated memory was 261.1MB in the beginning and 1.6GB in the end (delta: 1.4GB). Free memory was 226.2MB in the beginning and 360.9MB in the end (delta: -134.7MB). Peak memory consumption was 1.3GB. Max. memory is 8.0GB. [2023-12-09 15:38:25,207 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 200.3MB. Free memory is still 152.6MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 289.30ms. Allocated memory is still 261.1MB. Free memory was 210.0MB in the beginning and 198.4MB in the end (delta: 11.6MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 43.01ms. Allocated memory is still 261.1MB. Free memory was 198.1MB in the beginning and 196.6MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 30.09ms. Allocated memory is still 261.1MB. Free memory was 196.6MB in the beginning and 195.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 585.84ms. Allocated memory is still 261.1MB. Free memory was 195.0MB in the beginning and 226.6MB in the end (delta: -31.6MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. * TraceAbstraction took 252723.14ms. Allocated memory was 261.1MB in the beginning and 1.6GB in the end (delta: 1.4GB). Free memory was 226.2MB in the beginning and 360.9MB in the end (delta: -134.7MB). Peak memory consumption was 1.3GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 118]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable Cancelled while PredicateComparison was comparing new predicate (quantifier-free) to 107 known predicates. - TimeoutResultAtElement [Line: 111]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message) Cancelled while PredicateComparison was comparing new predicate (quantifier-free) to 107 known predicates. - TimeoutResultAtElement [Line: 110]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message) Cancelled while PredicateComparison was comparing new predicate (quantifier-free) to 107 known predicates. - TimeoutResultAtElement [Line: 112]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message) Cancelled while PredicateComparison was comparing new predicate (quantifier-free) to 107 known predicates. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 138 locations, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 252.6s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 233.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 6 mSolverCounterUnknown, 4860 SdHoareTripleChecker+Valid, 42.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 4860 mSDsluCounter, 3772 SdHoareTripleChecker+Invalid, 40.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3511 mSDsCounter, 573 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 10322 IncrementalHoareTripleChecker+Invalid, 10901 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 573 mSolverCounterUnsat, 261 mSDtfsCounter, 10322 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1258 GetRequests, 425 SyntacticMatches, 3 SemanticMatches, 829 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 219589 ImplicationChecksByTransitivity, 181.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=194840occurred in iteration=6, InterpolantAutomatonStates: 708, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 17.5s InterpolantComputationTime, 908 NumberOfCodeBlocks, 904 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 1082 ConstructedInterpolants, 0 QuantifiedInterpolants, 18728 SizeOfPredicates, 45 NumberOfNonLiveVariables, 718 ConjunctsInSsa, 80 ConjunctsInUnsatCore, 12 InterpolantComputations, 5 PerfectInterpolantSequences, 4/17 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 could not prove your program: Timeout Completed graceful shutdown