/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/goblint-regression/13-privatized_30-traces-oplus-vs-meet_true.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-wip.dk.empire-owicki-a20a710-m [2023-12-09 15:01:23,150 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-09 15:01:23,222 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 15:01:23,246 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-09 15:01:23,247 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-09 15:01:23,247 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-09 15:01:23,248 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-09 15:01:23,248 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-09 15:01:23,248 INFO L153 SettingsManager]: * Use SBE=true [2023-12-09 15:01:23,253 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-09 15:01:23,253 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-09 15:01:23,253 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-09 15:01:23,253 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-09 15:01:23,254 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-09 15:01:23,254 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-09 15:01:23,255 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-09 15:01:23,255 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-09 15:01:23,255 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-09 15:01:23,255 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-09 15:01:23,255 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-09 15:01:23,255 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-09 15:01:23,256 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-09 15:01:23,256 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-09 15:01:23,256 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-12-09 15:01:23,256 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-09 15:01:23,257 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-09 15:01:23,257 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-09 15:01:23,257 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-09 15:01:23,257 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-09 15:01:23,257 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-09 15:01:23,258 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-09 15:01:23,258 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-09 15:01:23,258 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-09 15:01:23,258 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> true [2023-12-09 15:01:23,449 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-09 15:01:23,463 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-09 15:01:23,465 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-09 15:01:23,466 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-09 15:01:23,467 INFO L274 PluginConnector]: CDTParser initialized [2023-12-09 15:01:23,468 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_30-traces-oplus-vs-meet_true.i [2023-12-09 15:01:24,432 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-09 15:01:24,626 INFO L384 CDTParser]: Found 1 translation units. [2023-12-09 15:01:24,632 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_30-traces-oplus-vs-meet_true.i [2023-12-09 15:01:24,647 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a6c6053a0/5298f5e211bc4e44a06bf349ce96d197/FLAGabaef130a [2023-12-09 15:01:24,659 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a6c6053a0/5298f5e211bc4e44a06bf349ce96d197 [2023-12-09 15:01:24,661 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-09 15:01:24,662 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-09 15:01:24,663 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-09 15:01:24,663 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-09 15:01:24,667 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-09 15:01:24,667 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 03:01:24" (1/1) ... [2023-12-09 15:01:24,668 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7aefca8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:01:24, skipping insertion in model container [2023-12-09 15:01:24,668 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 03:01:24" (1/1) ... [2023-12-09 15:01:24,708 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-09 15:01:24,819 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_30-traces-oplus-vs-meet_true.i[1097,1110] [2023-12-09 15:01:24,900 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-09 15:01:24,909 INFO L202 MainTranslator]: Completed pre-run [2023-12-09 15:01:24,917 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_30-traces-oplus-vs-meet_true.i[1097,1110] [2023-12-09 15:01:24,984 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-09 15:01:25,018 INFO L206 MainTranslator]: Completed translation [2023-12-09 15:01:25,019 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:01:25 WrapperNode [2023-12-09 15:01:25,019 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-09 15:01:25,020 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-09 15:01:25,020 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-09 15:01:25,020 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-09 15:01:25,024 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:01:25" (1/1) ... [2023-12-09 15:01:25,061 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:01:25" (1/1) ... [2023-12-09 15:01:25,083 INFO L138 Inliner]: procedures = 163, calls = 36, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 63 [2023-12-09 15:01:25,084 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-09 15:01:25,084 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-09 15:01:25,084 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-09 15:01:25,085 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-09 15:01:25,090 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:01:25" (1/1) ... [2023-12-09 15:01:25,090 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:01:25" (1/1) ... [2023-12-09 15:01:25,094 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:01:25" (1/1) ... [2023-12-09 15:01:25,094 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:01:25" (1/1) ... [2023-12-09 15:01:25,101 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:01:25" (1/1) ... [2023-12-09 15:01:25,102 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:01:25" (1/1) ... [2023-12-09 15:01:25,103 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:01:25" (1/1) ... [2023-12-09 15:01:25,104 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:01:25" (1/1) ... [2023-12-09 15:01:25,106 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-09 15:01:25,106 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-09 15:01:25,106 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-09 15:01:25,106 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-09 15:01:25,107 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:01:25" (1/1) ... [2023-12-09 15:01:25,110 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-09 15:01:25,118 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-09 15:01:25,141 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 15:01:25,172 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 15:01:25,178 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-12-09 15:01:25,178 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-12-09 15:01:25,178 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-12-09 15:01:25,178 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-09 15:01:25,178 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-09 15:01:25,178 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-12-09 15:01:25,178 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-12-09 15:01:25,178 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-09 15:01:25,178 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-09 15:01:25,178 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2023-12-09 15:01:25,179 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-09 15:01:25,179 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-09 15:01:25,179 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 15:01:25,261 INFO L241 CfgBuilder]: Building ICFG [2023-12-09 15:01:25,262 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-09 15:01:25,375 INFO L282 CfgBuilder]: Performing block encoding [2023-12-09 15:01:25,396 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-09 15:01:25,397 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-09 15:01:25,398 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 03:01:25 BoogieIcfgContainer [2023-12-09 15:01:25,398 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-09 15:01:25,400 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-09 15:01:25,400 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-09 15:01:25,402 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-09 15:01:25,402 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 03:01:24" (1/3) ... [2023-12-09 15:01:25,402 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56175aaf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 03:01:25, skipping insertion in model container [2023-12-09 15:01:25,402 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:01:25" (2/3) ... [2023-12-09 15:01:25,403 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56175aaf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 03:01:25, skipping insertion in model container [2023-12-09 15:01:25,403 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 03:01:25" (3/3) ... [2023-12-09 15:01:25,404 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_30-traces-oplus-vs-meet_true.i [2023-12-09 15:01:25,415 INFO L197 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-09 15:01:25,415 INFO L156 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-12-09 15:01:25,415 INFO L508 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-12-09 15:01:25,449 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-12-09 15:01:25,473 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 87 places, 85 transitions, 177 flow [2023-12-09 15:01:25,499 INFO L124 PetriNetUnfolderBase]: 2/84 cut-off events. [2023-12-09 15:01:25,499 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-12-09 15:01:25,502 INFO L83 FinitePrefix]: Finished finitePrefix Result has 89 conditions, 84 events. 2/84 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 52 event pairs, 0 based on Foata normal form. 0/80 useless extension candidates. Maximal degree in co-relation 38. Up to 2 conditions per place. [2023-12-09 15:01:25,502 INFO L82 GeneralOperation]: Start removeDead. Operand has 87 places, 85 transitions, 177 flow [2023-12-09 15:01:25,505 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 69 places, 66 transitions, 135 flow [2023-12-09 15:01:25,511 INFO L361 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-09 15:01:25,516 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;@dc6c3b5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-09 15:01:25,516 INFO L363 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2023-12-09 15:01:25,522 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-12-09 15:01:25,522 INFO L124 PetriNetUnfolderBase]: 0/29 cut-off events. [2023-12-09 15:01:25,522 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-12-09 15:01:25,523 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:01:25,523 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] [2023-12-09 15:01:25,523 INFO L425 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:01:25,527 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:01:25,527 INFO L85 PathProgramCache]: Analyzing trace with hash -564909372, now seen corresponding path program 1 times [2023-12-09 15:01:25,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:01:25,535 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1242418788] [2023-12-09 15:01:25,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:01:25,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:01:25,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:01:25,893 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 15:01:25,894 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:01:25,894 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1242418788] [2023-12-09 15:01:25,894 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1242418788] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:01:25,895 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:01:25,895 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-09 15:01:25,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [86575330] [2023-12-09 15:01:25,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:01:25,902 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-09 15:01:25,905 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:01:25,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-09 15:01:25,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-09 15:01:25,927 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 85 [2023-12-09 15:01:25,929 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 66 transitions, 135 flow. Second operand has 5 states, 5 states have (on average 53.0) internal successors, (265), 5 states have internal predecessors, (265), 0 states have call successors, (0), 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 15:01:25,930 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:01:25,930 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 85 [2023-12-09 15:01:25,930 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:01:26,107 INFO L124 PetriNetUnfolderBase]: 54/219 cut-off events. [2023-12-09 15:01:26,107 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-12-09 15:01:26,108 INFO L83 FinitePrefix]: Finished finitePrefix Result has 363 conditions, 219 events. 54/219 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 767 event pairs, 18 based on Foata normal form. 9/227 useless extension candidates. Maximal degree in co-relation 316. Up to 51 conditions per place. [2023-12-09 15:01:26,109 INFO L140 encePairwiseOnDemand]: 74/85 looper letters, 20 selfloop transitions, 7 changer transitions 21/88 dead transitions. [2023-12-09 15:01:26,109 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 88 transitions, 275 flow [2023-12-09 15:01:26,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-09 15:01:26,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-12-09 15:01:26,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 415 transitions. [2023-12-09 15:01:26,129 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.6974789915966386 [2023-12-09 15:01:26,130 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 415 transitions. [2023-12-09 15:01:26,130 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 415 transitions. [2023-12-09 15:01:26,131 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:01:26,133 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 415 transitions. [2023-12-09 15:01:26,135 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 59.285714285714285) internal successors, (415), 7 states have internal predecessors, (415), 0 states have call successors, (0), 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 15:01:26,138 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 85.0) internal successors, (680), 8 states have internal predecessors, (680), 0 states have call successors, (0), 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 15:01:26,138 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 85.0) internal successors, (680), 8 states have internal predecessors, (680), 0 states have call successors, (0), 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 15:01:26,141 INFO L308 CegarLoopForPetriNet]: 69 programPoint places, 3 predicate places. [2023-12-09 15:01:26,141 INFO L500 AbstractCegarLoop]: Abstraction has has 72 places, 88 transitions, 275 flow [2023-12-09 15:01:26,141 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 53.0) internal successors, (265), 5 states have internal predecessors, (265), 0 states have call successors, (0), 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 15:01:26,141 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:01:26,141 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] [2023-12-09 15:01:26,142 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-09 15:01:26,142 INFO L425 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:01:26,142 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:01:26,142 INFO L85 PathProgramCache]: Analyzing trace with hash 1722807725, now seen corresponding path program 1 times [2023-12-09 15:01:26,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:01:26,143 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [284180015] [2023-12-09 15:01:26,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:01:26,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:01:26,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:01:26,255 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 15:01:26,255 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:01:26,255 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [284180015] [2023-12-09 15:01:26,256 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [284180015] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:01:26,256 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:01:26,256 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-09 15:01:26,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [458473203] [2023-12-09 15:01:26,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:01:26,257 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-09 15:01:26,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:01:26,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-09 15:01:26,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-09 15:01:26,258 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 85 [2023-12-09 15:01:26,258 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 88 transitions, 275 flow. Second operand has 3 states, 3 states have (on average 66.66666666666667) internal successors, (200), 3 states have internal predecessors, (200), 0 states have call successors, (0), 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 15:01:26,258 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:01:26,259 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 85 [2023-12-09 15:01:26,259 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:01:26,313 INFO L124 PetriNetUnfolderBase]: 33/178 cut-off events. [2023-12-09 15:01:26,314 INFO L125 PetriNetUnfolderBase]: For 39/41 co-relation queries the response was YES. [2023-12-09 15:01:26,315 INFO L83 FinitePrefix]: Finished finitePrefix Result has 347 conditions, 178 events. 33/178 cut-off events. For 39/41 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 567 event pairs, 1 based on Foata normal form. 7/185 useless extension candidates. Maximal degree in co-relation 292. Up to 48 conditions per place. [2023-12-09 15:01:26,317 INFO L140 encePairwiseOnDemand]: 80/85 looper letters, 15 selfloop transitions, 4 changer transitions 12/81 dead transitions. [2023-12-09 15:01:26,317 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 81 transitions, 303 flow [2023-12-09 15:01:26,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-09 15:01:26,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-12-09 15:01:26,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 210 transitions. [2023-12-09 15:01:26,318 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.8235294117647058 [2023-12-09 15:01:26,318 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 210 transitions. [2023-12-09 15:01:26,318 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 210 transitions. [2023-12-09 15:01:26,318 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:01:26,318 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 210 transitions. [2023-12-09 15:01:26,319 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 70.0) internal successors, (210), 3 states have internal predecessors, (210), 0 states have call successors, (0), 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 15:01:26,321 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 85.0) internal successors, (340), 4 states have internal predecessors, (340), 0 states have call successors, (0), 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 15:01:26,321 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 85.0) internal successors, (340), 4 states have internal predecessors, (340), 0 states have call successors, (0), 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 15:01:26,322 INFO L308 CegarLoopForPetriNet]: 69 programPoint places, 3 predicate places. [2023-12-09 15:01:26,322 INFO L500 AbstractCegarLoop]: Abstraction has has 72 places, 81 transitions, 303 flow [2023-12-09 15:01:26,322 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 66.66666666666667) internal successors, (200), 3 states have internal predecessors, (200), 0 states have call successors, (0), 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 15:01:26,322 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:01:26,322 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] [2023-12-09 15:01:26,322 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-09 15:01:26,323 INFO L425 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:01:26,324 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:01:26,324 INFO L85 PathProgramCache]: Analyzing trace with hash 2046147693, now seen corresponding path program 1 times [2023-12-09 15:01:26,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:01:26,324 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [528184740] [2023-12-09 15:01:26,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:01:26,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:01:26,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:01:26,468 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 15:01:26,468 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:01:26,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [528184740] [2023-12-09 15:01:26,469 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [528184740] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:01:26,469 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:01:26,469 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-09 15:01:26,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1111028666] [2023-12-09 15:01:26,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:01:26,469 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-09 15:01:26,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:01:26,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-09 15:01:26,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-09 15:01:26,471 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 85 [2023-12-09 15:01:26,471 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 81 transitions, 303 flow. Second operand has 3 states, 3 states have (on average 67.0) internal successors, (201), 3 states have internal predecessors, (201), 0 states have call successors, (0), 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 15:01:26,471 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:01:26,471 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 85 [2023-12-09 15:01:26,471 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:01:26,503 INFO L124 PetriNetUnfolderBase]: 4/105 cut-off events. [2023-12-09 15:01:26,503 INFO L125 PetriNetUnfolderBase]: For 65/69 co-relation queries the response was YES. [2023-12-09 15:01:26,504 INFO L83 FinitePrefix]: Finished finitePrefix Result has 221 conditions, 105 events. 4/105 cut-off events. For 65/69 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 198 event pairs, 0 based on Foata normal form. 11/116 useless extension candidates. Maximal degree in co-relation 158. Up to 21 conditions per place. [2023-12-09 15:01:26,504 INFO L140 encePairwiseOnDemand]: 79/85 looper letters, 9 selfloop transitions, 3 changer transitions 21/74 dead transitions. [2023-12-09 15:01:26,504 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 74 transitions, 315 flow [2023-12-09 15:01:26,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-09 15:01:26,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-12-09 15:01:26,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 210 transitions. [2023-12-09 15:01:26,505 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.8235294117647058 [2023-12-09 15:01:26,505 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 210 transitions. [2023-12-09 15:01:26,505 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 210 transitions. [2023-12-09 15:01:26,505 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:01:26,505 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 210 transitions. [2023-12-09 15:01:26,506 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 70.0) internal successors, (210), 3 states have internal predecessors, (210), 0 states have call successors, (0), 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 15:01:26,506 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 85.0) internal successors, (340), 4 states have internal predecessors, (340), 0 states have call successors, (0), 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 15:01:26,506 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 85.0) internal successors, (340), 4 states have internal predecessors, (340), 0 states have call successors, (0), 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 15:01:26,507 INFO L308 CegarLoopForPetriNet]: 69 programPoint places, 5 predicate places. [2023-12-09 15:01:26,507 INFO L500 AbstractCegarLoop]: Abstraction has has 74 places, 74 transitions, 315 flow [2023-12-09 15:01:26,507 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 67.0) internal successors, (201), 3 states have internal predecessors, (201), 0 states have call successors, (0), 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 15:01:26,507 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:01:26,507 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] [2023-12-09 15:01:26,508 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-09 15:01:26,508 INFO L425 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:01:26,508 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:01:26,508 INFO L85 PathProgramCache]: Analyzing trace with hash -920464833, now seen corresponding path program 2 times [2023-12-09 15:01:26,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:01:26,508 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1631430457] [2023-12-09 15:01:26,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:01:26,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:01:26,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:01:26,654 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 15:01:26,655 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:01:26,655 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1631430457] [2023-12-09 15:01:26,655 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1631430457] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:01:26,655 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:01:26,655 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-09 15:01:26,655 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [297993686] [2023-12-09 15:01:26,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:01:26,656 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-09 15:01:26,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:01:26,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-09 15:01:26,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-09 15:01:26,657 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 57 out of 85 [2023-12-09 15:01:26,657 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 74 transitions, 315 flow. Second operand has 6 states, 6 states have (on average 60.0) internal successors, (360), 6 states have internal predecessors, (360), 0 states have call successors, (0), 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 15:01:26,657 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:01:26,658 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 57 of 85 [2023-12-09 15:01:26,658 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:01:26,699 INFO L124 PetriNetUnfolderBase]: 1/83 cut-off events. [2023-12-09 15:01:26,699 INFO L125 PetriNetUnfolderBase]: For 80/88 co-relation queries the response was YES. [2023-12-09 15:01:26,699 INFO L83 FinitePrefix]: Finished finitePrefix Result has 201 conditions, 83 events. 1/83 cut-off events. For 80/88 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 79 event pairs, 0 based on Foata normal form. 4/87 useless extension candidates. Maximal degree in co-relation 124. Up to 17 conditions per place. [2023-12-09 15:01:26,699 INFO L140 encePairwiseOnDemand]: 80/85 looper letters, 0 selfloop transitions, 0 changer transitions 66/66 dead transitions. [2023-12-09 15:01:26,699 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 66 transitions, 327 flow [2023-12-09 15:01:26,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-09 15:01:26,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-12-09 15:01:26,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 308 transitions. [2023-12-09 15:01:26,700 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7247058823529412 [2023-12-09 15:01:26,700 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 308 transitions. [2023-12-09 15:01:26,701 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 308 transitions. [2023-12-09 15:01:26,701 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:01:26,701 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 308 transitions. [2023-12-09 15:01:26,702 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 61.6) internal successors, (308), 5 states have internal predecessors, (308), 0 states have call successors, (0), 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 15:01:26,702 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 85.0) internal successors, (510), 6 states have internal predecessors, (510), 0 states have call successors, (0), 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 15:01:26,703 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 85.0) internal successors, (510), 6 states have internal predecessors, (510), 0 states have call successors, (0), 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 15:01:26,703 INFO L308 CegarLoopForPetriNet]: 69 programPoint places, 7 predicate places. [2023-12-09 15:01:26,703 INFO L500 AbstractCegarLoop]: Abstraction has has 76 places, 66 transitions, 327 flow [2023-12-09 15:01:26,704 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 60.0) internal successors, (360), 6 states have internal predecessors, (360), 0 states have call successors, (0), 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 15:01:26,708 INFO L161 wickiGriesTestDumper]: Dumping Owicki-Gries test to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/13-privatized_30-traces-oplus-vs-meet_true.i_BEv2_AllErrorsAtOnce [2023-12-09 15:01:26,721 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2023-12-09 15:01:26,721 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 3 remaining) [2023-12-09 15:01:26,722 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2023-12-09 15:01:26,722 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-09 15:01:26,722 INFO L457 BasicCegarLoop]: Path program histogram: [2, 1, 1] [2023-12-09 15:01:26,724 INFO L222 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-12-09 15:01:26,724 INFO L172 ceAbstractionStarter]: Computing trace abstraction results [2023-12-09 15:01:26,729 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 03:01:26 BasicIcfg [2023-12-09 15:01:26,729 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-09 15:01:26,730 INFO L158 Benchmark]: Toolchain (without parser) took 2067.57ms. Allocated memory was 237.0MB in the beginning and 309.3MB in the end (delta: 72.4MB). Free memory was 170.7MB in the beginning and 194.1MB in the end (delta: -23.4MB). Peak memory consumption was 48.7MB. Max. memory is 8.0GB. [2023-12-09 15:01:26,730 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 237.0MB. Free memory is still 186.7MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-09 15:01:26,730 INFO L158 Benchmark]: CACSL2BoogieTranslator took 355.98ms. Allocated memory was 237.0MB in the beginning and 309.3MB in the end (delta: 72.4MB). Free memory was 170.5MB in the beginning and 269.6MB in the end (delta: -99.1MB). Peak memory consumption was 20.2MB. Max. memory is 8.0GB. [2023-12-09 15:01:26,730 INFO L158 Benchmark]: Boogie Procedure Inliner took 64.31ms. Allocated memory is still 309.3MB. Free memory was 269.6MB in the beginning and 267.6MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-09 15:01:26,731 INFO L158 Benchmark]: Boogie Preprocessor took 21.32ms. Allocated memory is still 309.3MB. Free memory was 267.6MB in the beginning and 266.1MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-12-09 15:01:26,731 INFO L158 Benchmark]: RCFGBuilder took 291.87ms. Allocated memory is still 309.3MB. Free memory was 266.1MB in the beginning and 250.3MB in the end (delta: 15.7MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. [2023-12-09 15:01:26,731 INFO L158 Benchmark]: TraceAbstraction took 1329.42ms. Allocated memory is still 309.3MB. Free memory was 249.8MB in the beginning and 194.1MB in the end (delta: 55.8MB). Peak memory consumption was 54.7MB. Max. memory is 8.0GB. [2023-12-09 15:01:26,733 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 237.0MB. Free memory is still 186.7MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 355.98ms. Allocated memory was 237.0MB in the beginning and 309.3MB in the end (delta: 72.4MB). Free memory was 170.5MB in the beginning and 269.6MB in the end (delta: -99.1MB). Peak memory consumption was 20.2MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 64.31ms. Allocated memory is still 309.3MB. Free memory was 269.6MB in the beginning and 267.6MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 21.32ms. Allocated memory is still 309.3MB. Free memory was 267.6MB in the beginning and 266.1MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 291.87ms. Allocated memory is still 309.3MB. Free memory was 266.1MB in the beginning and 250.3MB in the end (delta: 15.7MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. * TraceAbstraction took 1329.42ms. Allocated memory is still 309.3MB. Free memory was 249.8MB in the beginning and 194.1MB in the end (delta: 55.8MB). Peak memory consumption was 54.7MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 103 locations, 3 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: 1.3s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 63 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 63 mSDsluCounter, 45 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 18 mSDsCounter, 24 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 166 IncrementalHoareTripleChecker+Invalid, 190 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 24 mSolverCounterUnsat, 27 mSDtfsCounter, 166 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 24 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=327occurred in iteration=4, InterpolantAutomatonStates: 18, 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: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 184 NumberOfCodeBlocks, 184 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 180 ConstructedInterpolants, 0 QuantifiedInterpolants, 435 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-12-09 15:01:26,750 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...