/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/parallel-ticket-8.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-wip.dk.empire-owicki-a20a710-m [2023-12-09 15:21:22,945 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-09 15:21:23,000 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 15:21:23,022 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-09 15:21:23,022 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-09 15:21:23,023 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-09 15:21:23,023 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-09 15:21:23,023 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-09 15:21:23,023 INFO L153 SettingsManager]: * Use SBE=true [2023-12-09 15:21:23,024 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-09 15:21:23,026 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-09 15:21:23,028 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-09 15:21:23,029 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-09 15:21:23,029 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-09 15:21:23,029 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-09 15:21:23,030 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-09 15:21:23,031 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-09 15:21:23,034 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-09 15:21:23,034 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-09 15:21:23,034 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-09 15:21:23,036 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-09 15:21:23,036 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-09 15:21:23,036 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-09 15:21:23,036 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-12-09 15:21:23,037 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-09 15:21:23,037 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-09 15:21:23,037 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-09 15:21:23,037 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-09 15:21:23,037 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-09 15:21:23,037 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-09 15:21:23,038 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-09 15:21:23,038 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-09 15:21:23,038 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-09 15:21:23,038 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> true [2023-12-09 15:21:23,228 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-09 15:21:23,257 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-09 15:21:23,259 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-09 15:21:23,259 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-09 15:21:23,260 INFO L274 PluginConnector]: CDTParser initialized [2023-12-09 15:21:23,260 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/parallel-ticket-8.wvr.c [2023-12-09 15:21:24,420 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-09 15:21:24,566 INFO L384 CDTParser]: Found 1 translation units. [2023-12-09 15:21:24,566 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-ticket-8.wvr.c [2023-12-09 15:21:24,571 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cd0cd12cd/1ac1172e5c214688b162bd62318d1efc/FLAG0dd55adde [2023-12-09 15:21:24,581 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cd0cd12cd/1ac1172e5c214688b162bd62318d1efc [2023-12-09 15:21:24,583 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-09 15:21:24,584 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-09 15:21:24,585 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-09 15:21:24,585 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-09 15:21:24,588 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-09 15:21:24,588 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 03:21:24" (1/1) ... [2023-12-09 15:21:24,589 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1471289e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:21:24, skipping insertion in model container [2023-12-09 15:21:24,589 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 03:21:24" (1/1) ... [2023-12-09 15:21:24,608 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-09 15:21:24,718 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/parallel-ticket-8.wvr.c[5378,5391] [2023-12-09 15:21:24,722 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-09 15:21:24,728 INFO L202 MainTranslator]: Completed pre-run [2023-12-09 15:21:24,750 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/parallel-ticket-8.wvr.c[5378,5391] [2023-12-09 15:21:24,752 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-09 15:21:24,757 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-12-09 15:21:24,757 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-12-09 15:21:24,764 INFO L206 MainTranslator]: Completed translation [2023-12-09 15:21:24,765 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:21:24 WrapperNode [2023-12-09 15:21:24,765 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-09 15:21:24,765 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-09 15:21:24,766 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-09 15:21:24,766 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-09 15:21:24,770 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:21:24" (1/1) ... [2023-12-09 15:21:24,776 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:21:24" (1/1) ... [2023-12-09 15:21:24,800 INFO L138 Inliner]: procedures = 27, calls = 130, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 377 [2023-12-09 15:21:24,800 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-09 15:21:24,801 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-09 15:21:24,801 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-09 15:21:24,801 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-09 15:21:24,812 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:21:24" (1/1) ... [2023-12-09 15:21:24,813 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:21:24" (1/1) ... [2023-12-09 15:21:24,816 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:21:24" (1/1) ... [2023-12-09 15:21:24,816 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:21:24" (1/1) ... [2023-12-09 15:21:24,823 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:21:24" (1/1) ... [2023-12-09 15:21:24,825 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:21:24" (1/1) ... [2023-12-09 15:21:24,836 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:21:24" (1/1) ... [2023-12-09 15:21:24,838 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:21:24" (1/1) ... [2023-12-09 15:21:24,841 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-09 15:21:24,841 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-09 15:21:24,841 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-09 15:21:24,841 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-09 15:21:24,842 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:21:24" (1/1) ... [2023-12-09 15:21:24,845 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-09 15:21:24,855 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-09 15:21:24,887 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 15:21:24,911 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-09 15:21:24,911 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-09 15:21:24,912 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-12-09 15:21:24,912 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-12-09 15:21:24,912 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-12-09 15:21:24,912 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-12-09 15:21:24,912 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-12-09 15:21:24,912 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-12-09 15:21:24,912 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-12-09 15:21:24,912 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-12-09 15:21:24,913 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2023-12-09 15:21:24,913 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2023-12-09 15:21:24,913 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-09 15:21:24,913 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2023-12-09 15:21:24,913 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2023-12-09 15:21:24,913 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2023-12-09 15:21:24,913 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2023-12-09 15:21:24,913 INFO L130 BoogieDeclarations]: Found specification of procedure thread7 [2023-12-09 15:21:24,913 INFO L138 BoogieDeclarations]: Found implementation of procedure thread7 [2023-12-09 15:21:24,913 INFO L130 BoogieDeclarations]: Found specification of procedure thread8 [2023-12-09 15:21:24,913 INFO L138 BoogieDeclarations]: Found implementation of procedure thread8 [2023-12-09 15:21:24,913 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-12-09 15:21:24,913 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-12-09 15:21:24,914 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-09 15:21:24,914 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-09 15:21:24,914 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-09 15:21:24,897 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 15:21:24,915 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 15:21:25,012 INFO L241 CfgBuilder]: Building ICFG [2023-12-09 15:21:25,014 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-09 15:21:25,367 INFO L282 CfgBuilder]: Performing block encoding [2023-12-09 15:21:25,459 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-09 15:21:25,459 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-09 15:21:25,460 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 03:21:25 BoogieIcfgContainer [2023-12-09 15:21:25,460 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-09 15:21:25,462 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-09 15:21:25,462 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-09 15:21:25,464 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-09 15:21:25,464 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 03:21:24" (1/3) ... [2023-12-09 15:21:25,465 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ab8f51 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 03:21:25, skipping insertion in model container [2023-12-09 15:21:25,465 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:21:24" (2/3) ... [2023-12-09 15:21:25,465 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ab8f51 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 03:21:25, skipping insertion in model container [2023-12-09 15:21:25,465 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 03:21:25" (3/3) ... [2023-12-09 15:21:25,466 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-ticket-8.wvr.c [2023-12-09 15:21:25,479 INFO L197 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-09 15:21:25,480 INFO L156 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-09 15:21:25,480 INFO L508 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-12-09 15:21:25,560 INFO L144 ThreadInstanceAdder]: Constructed 8 joinOtherThreadTransitions. [2023-12-09 15:21:25,587 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 273 places, 250 transitions, 556 flow [2023-12-09 15:21:25,697 INFO L124 PetriNetUnfolderBase]: 2/242 cut-off events. [2023-12-09 15:21:25,697 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2023-12-09 15:21:25,703 INFO L83 FinitePrefix]: Finished finitePrefix Result has 275 conditions, 242 events. 2/242 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 130 event pairs, 0 based on Foata normal form. 0/239 useless extension candidates. Maximal degree in co-relation 192. Up to 2 conditions per place. [2023-12-09 15:21:25,703 INFO L82 GeneralOperation]: Start removeDead. Operand has 273 places, 250 transitions, 556 flow [2023-12-09 15:21:25,711 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 244 places, 221 transitions, 490 flow [2023-12-09 15:21:25,718 INFO L361 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-09 15:21:25,724 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;@1bad9360, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-09 15:21:25,724 INFO L363 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2023-12-09 15:21:25,761 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-12-09 15:21:25,761 INFO L124 PetriNetUnfolderBase]: 2/220 cut-off events. [2023-12-09 15:21:25,761 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2023-12-09 15:21:25,761 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:21:25,762 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:21:25,762 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 6 more)] === [2023-12-09 15:21:25,766 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:21:25,766 INFO L85 PathProgramCache]: Analyzing trace with hash -1622658089, now seen corresponding path program 1 times [2023-12-09 15:21:25,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:21:25,773 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1922753653] [2023-12-09 15:21:25,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:21:25,774 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:21:26,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:21:28,301 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 15:21:28,301 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:21:28,301 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1922753653] [2023-12-09 15:21:28,302 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1922753653] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:21:28,302 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:21:28,302 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-09 15:21:28,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743178047] [2023-12-09 15:21:28,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:21:28,315 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-09 15:21:28,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:21:28,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-09 15:21:28,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2023-12-09 15:21:28,343 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 180 out of 250 [2023-12-09 15:21:28,348 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 244 places, 221 transitions, 490 flow. Second operand has 10 states, 10 states have (on average 186.5) internal successors, (1865), 10 states have internal predecessors, (1865), 0 states have call successors, (0), 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 15:21:28,348 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:21:28,348 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 180 of 250 [2023-12-09 15:21:28,348 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand