/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf --traceabstraction.order.of.the.error.locations.to.be.checked PROGRAM_FIRST -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --cacsl2boogietranslator.check.absence.of.data.races.in.concurrent.programs true -i ../../../trunk/examples/svcomp/weaver/chl-nzb-file-subst.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-26 08:50:22,748 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-26 08:50:22,814 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-VariableLbe.epf [2023-08-26 08:50:22,817 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-26 08:50:22,817 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-26 08:50:22,834 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-26 08:50:22,835 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-26 08:50:22,835 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-26 08:50:22,835 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-26 08:50:22,838 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-26 08:50:22,838 INFO L153 SettingsManager]: * Use SBE=true [2023-08-26 08:50:22,838 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-26 08:50:22,839 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-26 08:50:22,839 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-26 08:50:22,840 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-26 08:50:22,840 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-26 08:50:22,840 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-26 08:50:22,840 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-26 08:50:22,840 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-26 08:50:22,840 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-26 08:50:22,840 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-26 08:50:22,841 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-26 08:50:22,841 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-26 08:50:22,841 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-26 08:50:22,842 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-26 08:50:22,842 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-26 08:50:22,842 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-26 08:50:22,842 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-26 08:50:22,842 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-26 08:50:22,842 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-26 08:50:22,843 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-26 08:50:22,843 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-26 08:50:22,843 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-26 08:50:22,843 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-26 08:50:22,843 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-26 08:50:22,844 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> PROGRAM_FIRST Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true [2023-08-26 08:50:23,092 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-26 08:50:23,104 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-26 08:50:23,106 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-26 08:50:23,106 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-26 08:50:23,107 INFO L274 PluginConnector]: CDTParser initialized [2023-08-26 08:50:23,107 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/chl-nzb-file-subst.wvr.c [2023-08-26 08:50:23,997 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-26 08:50:24,166 INFO L384 CDTParser]: Found 1 translation units. [2023-08-26 08:50:24,167 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-nzb-file-subst.wvr.c [2023-08-26 08:50:24,174 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/04882dcd8/b5c5bf7efdb949458288da7f442b858b/FLAGa2c756917 [2023-08-26 08:50:24,185 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/04882dcd8/b5c5bf7efdb949458288da7f442b858b [2023-08-26 08:50:24,189 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-26 08:50:24,189 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-26 08:50:24,192 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-26 08:50:24,192 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-26 08:50:24,194 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-26 08:50:24,195 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 08:50:24" (1/1) ... [2023-08-26 08:50:24,196 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a138221 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:50:24, skipping insertion in model container [2023-08-26 08:50:24,196 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 08:50:24" (1/1) ... [2023-08-26 08:50:24,228 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-26 08:50:24,440 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-26 08:50:24,447 INFO L201 MainTranslator]: Completed pre-run [2023-08-26 08:50:24,506 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-26 08:50:24,515 INFO L206 MainTranslator]: Completed translation [2023-08-26 08:50:24,516 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:50:24 WrapperNode [2023-08-26 08:50:24,516 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-26 08:50:24,516 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-26 08:50:24,516 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-26 08:50:24,517 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-26 08:50:24,531 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:50:24" (1/1) ... [2023-08-26 08:50:24,551 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:50:24" (1/1) ... [2023-08-26 08:50:24,604 INFO L138 Inliner]: procedures = 26, calls = 77, calls flagged for inlining = 29, calls inlined = 43, statements flattened = 1341 [2023-08-26 08:50:24,604 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-26 08:50:24,605 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-26 08:50:24,605 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-26 08:50:24,605 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-26 08:50:24,610 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:50:24" (1/1) ... [2023-08-26 08:50:24,610 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:50:24" (1/1) ... [2023-08-26 08:50:24,617 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:50:24" (1/1) ... [2023-08-26 08:50:24,618 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:50:24" (1/1) ... [2023-08-26 08:50:24,634 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:50:24" (1/1) ... [2023-08-26 08:50:24,652 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:50:24" (1/1) ... [2023-08-26 08:50:24,654 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:50:24" (1/1) ... [2023-08-26 08:50:24,657 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:50:24" (1/1) ... [2023-08-26 08:50:24,674 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-26 08:50:24,675 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-26 08:50:24,675 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-26 08:50:24,675 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-26 08:50:24,675 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:50:24" (1/1) ... [2023-08-26 08:50:24,679 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-26 08:50:24,695 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 08:50:24,705 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) [2023-08-26 08:50:24,724 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 [2023-08-26 08:50:24,730 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-26 08:50:24,730 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-26 08:50:24,730 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-26 08:50:24,730 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-26 08:50:24,730 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-08-26 08:50:24,731 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-08-26 08:50:24,731 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-08-26 08:50:24,731 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-08-26 08:50:24,731 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-08-26 08:50:24,731 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-08-26 08:50:24,731 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-26 08:50:24,731 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-08-26 08:50:24,731 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-26 08:50:24,732 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-26 08:50:24,732 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-26 08:50:24,733 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-26 08:50:24,857 INFO L236 CfgBuilder]: Building ICFG [2023-08-26 08:50:24,859 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-26 08:50:25,837 INFO L277 CfgBuilder]: Performing block encoding [2023-08-26 08:50:25,847 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-26 08:50:25,847 INFO L302 CfgBuilder]: Removed 6 assume(true) statements. [2023-08-26 08:50:25,849 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 08:50:25 BoogieIcfgContainer [2023-08-26 08:50:25,849 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-26 08:50:25,850 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-26 08:50:25,850 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-26 08:50:25,852 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-26 08:50:25,852 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.08 08:50:24" (1/3) ... [2023-08-26 08:50:25,852 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@170924a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 08:50:25, skipping insertion in model container [2023-08-26 08:50:25,852 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:50:24" (2/3) ... [2023-08-26 08:50:25,853 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@170924a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 08:50:25, skipping insertion in model container [2023-08-26 08:50:25,853 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 08:50:25" (3/3) ... [2023-08-26 08:50:25,853 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-nzb-file-subst.wvr.c [2023-08-26 08:50:25,863 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-26 08:50:25,864 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 231 error locations. [2023-08-26 08:50:25,864 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-26 08:50:26,019 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-08-26 08:50:26,065 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1614 places, 1715 transitions, 3454 flow [2023-08-26 08:50:26,822 INFO L124 PetriNetUnfolderBase]: 111/1712 cut-off events. [2023-08-26 08:50:26,822 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-08-26 08:50:26,874 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1725 conditions, 1712 events. 111/1712 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 7454 event pairs, 0 based on Foata normal form. 0/1370 useless extension candidates. Maximal degree in co-relation 1328. Up to 2 conditions per place. [2023-08-26 08:50:26,875 INFO L82 GeneralOperation]: Start removeDead. Operand has 1614 places, 1715 transitions, 3454 flow [2023-08-26 08:50:26,919 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1600 places, 1701 transitions, 3420 flow [2023-08-26 08:50:26,921 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-26 08:50:26,927 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1600 places, 1701 transitions, 3420 flow [2023-08-26 08:50:26,928 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1600 places, 1701 transitions, 3420 flow [2023-08-26 08:50:26,929 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1600 places, 1701 transitions, 3420 flow [2023-08-26 08:50:27,483 INFO L124 PetriNetUnfolderBase]: 111/1701 cut-off events. [2023-08-26 08:50:27,484 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-08-26 08:50:27,527 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1714 conditions, 1701 events. 111/1701 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 7404 event pairs, 0 based on Foata normal form. 0/1360 useless extension candidates. Maximal degree in co-relation 1328. Up to 2 conditions per place. [2023-08-26 08:50:27,690 INFO L119 LiptonReduction]: Number of co-enabled transitions 1187286 [2023-08-26 08:50:58,314 INFO L134 LiptonReduction]: Checked pairs total: 3109927 [2023-08-26 08:50:58,314 INFO L136 LiptonReduction]: Total number of compositions: 1888 [2023-08-26 08:50:58,324 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-26 08:50:58,328 INFO L357 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=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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;@4e0c799e, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-26 08:50:58,328 INFO L358 AbstractCegarLoop]: Starting to check reachability of 432 error locations. [2023-08-26 08:50:58,328 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-26 08:50:58,328 INFO L124 PetriNetUnfolderBase]: 0/0 cut-off events. [2023-08-26 08:50:58,329 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 08:50:58,329 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 08:50:58,329 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-26 08:50:58,329 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 428 more)] === [2023-08-26 08:50:58,332 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 08:50:58,332 INFO L85 PathProgramCache]: Analyzing trace with hash 7065, now seen corresponding path program 1 times [2023-08-26 08:50:58,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 08:50:58,337 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [878354520] [2023-08-26 08:50:58,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:50:58,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 08:50:58,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:50:58,397 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 08:50:58,397 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 08:50:58,397 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [878354520] [2023-08-26 08:50:58,398 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [878354520] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 08:50:58,398 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 08:50:58,398 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-26 08:50:58,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2118439630] [2023-08-26 08:50:58,399 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 08:50:58,404 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-26 08:50:58,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 08:50:58,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-26 08:50:58,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-26 08:50:58,424 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1671 out of 3603 [2023-08-26 08:50:58,430 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 458 places, 500 transitions, 1018 flow. Second operand has 2 states, 2 states have (on average 1671.5) internal successors, (3343), 2 states have internal predecessors, (3343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:50:58,430 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 08:50:58,431 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1671 of 3603 [2023-08-26 08:50:58,431 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 08:52:10,563 INFO L124 PetriNetUnfolderBase]: 784312/1263146 cut-off events. [2023-08-26 08:52:10,564 INFO L125 PetriNetUnfolderBase]: For 9668/10561 co-relation queries the response was YES. [2023-08-26 08:52:13,587 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2294380 conditions, 1263146 events. 784312/1263146 cut-off events. For 9668/10561 co-relation queries the response was YES. Maximal size of possible extension queue 20868. Compared 13539013 event pairs, 579965 based on Foata normal form. 38342/1074590 useless extension candidates. Maximal degree in co-relation 2249584. Up to 1024123 conditions per place. [2023-08-26 08:52:19,721 INFO L140 encePairwiseOnDemand]: 3454/3603 looper letters, 204 selfloop transitions, 0 changer transitions 0/351 dead transitions. [2023-08-26 08:52:19,722 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 317 places, 351 transitions, 1128 flow [2023-08-26 08:52:19,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-26 08:52:19,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-26 08:52:19,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 3695 transitions. [2023-08-26 08:52:19,763 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.512767138495698 [2023-08-26 08:52:19,763 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 3695 transitions. [2023-08-26 08:52:19,764 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 3695 transitions. [2023-08-26 08:52:19,766 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 08:52:19,768 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 3695 transitions. [2023-08-26 08:52:19,789 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 1847.5) internal successors, (3695), 2 states have internal predecessors, (3695), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:52:19,835 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 3603.0) internal successors, (10809), 3 states have internal predecessors, (10809), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:52:19,839 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 3603.0) internal successors, (10809), 3 states have internal predecessors, (10809), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:52:19,841 INFO L175 Difference]: Start difference. First operand has 458 places, 500 transitions, 1018 flow. Second operand 2 states and 3695 transitions. [2023-08-26 08:52:19,842 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 317 places, 351 transitions, 1128 flow [2023-08-26 08:52:19,982 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 311 places, 351 transitions, 1116 flow, removed 0 selfloop flow, removed 6 redundant places. [2023-08-26 08:52:20,002 INFO L231 Difference]: Finished difference. Result has 311 places, 351 transitions, 708 flow [2023-08-26 08:52:20,004 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=3603, PETRI_DIFFERENCE_MINUEND_FLOW=708, PETRI_DIFFERENCE_MINUEND_PLACES=310, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=351, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=351, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=708, PETRI_PLACES=311, PETRI_TRANSITIONS=351} [2023-08-26 08:52:20,008 INFO L281 CegarLoopForPetriNet]: 458 programPoint places, -147 predicate places. [2023-08-26 08:52:20,008 INFO L495 AbstractCegarLoop]: Abstraction has has 311 places, 351 transitions, 708 flow [2023-08-26 08:52:20,010 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 1671.5) internal successors, (3343), 2 states have internal predecessors, (3343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:52:20,010 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 08:52:20,010 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-26 08:52:20,010 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-26 08:52:20,011 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err57ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 428 more)] === [2023-08-26 08:52:20,017 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 08:52:20,017 INFO L85 PathProgramCache]: Analyzing trace with hash -234549692, now seen corresponding path program 1 times [2023-08-26 08:52:20,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 08:52:20,017 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2036108766] [2023-08-26 08:52:20,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:52:20,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 08:52:20,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:52:20,314 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 08:52:20,314 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 08:52:20,314 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2036108766] [2023-08-26 08:52:20,317 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2036108766] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 08:52:20,317 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 08:52:20,318 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-26 08:52:20,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055550251] [2023-08-26 08:52:20,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 08:52:20,319 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 08:52:20,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 08:52:20,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 08:52:20,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 08:52:20,337 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1629 out of 3603 [2023-08-26 08:52:20,341 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 311 places, 351 transitions, 708 flow. Second operand has 3 states, 3 states have (on average 1631.0) internal successors, (4893), 3 states have internal predecessors, (4893), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:52:20,342 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 08:52:20,342 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1629 of 3603 [2023-08-26 08:52:20,342 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand